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git/git-svn.perl
Sergey Vlasov 8ac3a66702 git-svn: write memoized data explicitly to avoid Storable bug 
Apparently using the Storable module during global destruction is
unsafe - there is a bug which can cause segmentation faults:

  http://rt.cpan.org/Public/Bug/Display.html?id=36087
  http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=482355

The persistent memoization support introduced in commit 8bff7c538
relied on global destruction to write cached data, which was leading
to segfaults in some Perl configurations.  Calling Memoize::unmemoize
in the END block forces the cache writeout to be performed earlier,
thus avoiding the bug.

Signed-off-by: Sergey Vlasov <vsu@altlinux.ru>
Acked-by: Eric Wong <normalperson@yhbt.net>
2010-07-19 06:31:04 +00:00

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#!/usr/bin/env perl
# Copyright (C) 2006, Eric Wong <normalperson@yhbt.net>
# License: GPL v2 or later
use warnings;
use strict;
use vars qw/ $AUTHOR $VERSION
$sha1 $sha1_short $_revision $_repository
$_q $_authors $_authors_prog %users/;
$AUTHOR = 'Eric Wong <normalperson@yhbt.net>';
$VERSION = '@@GIT_VERSION@@';
# From which subdir have we been invoked?
my $cmd_dir_prefix = eval {
command_oneline([qw/rev-parse --show-prefix/], STDERR => 0)
} || '';
my $git_dir_user_set = 1 if defined $ENV{GIT_DIR};
$ENV{GIT_DIR} ||= '.git';
$Git::SVN::default_repo_id = 'svn';
$Git::SVN::default_ref_id = $ENV{GIT_SVN_ID} || 'git-svn';
$Git::SVN::Ra::_log_window_size = 100;
$Git::SVN::_minimize_url = 'unset';
if (! exists $ENV{SVN_SSH}) {
if (exists $ENV{GIT_SSH}) {
$ENV{SVN_SSH} = $ENV{GIT_SSH};
if ($^O eq 'msys') {
$ENV{SVN_SSH} =~ s/\\/\\\\/g;
$ENV{SVN_SSH} =~ s/(.*)/"$1"/;
}
}
}
$Git::SVN::Log::TZ = $ENV{TZ};
$ENV{TZ} = 'UTC';
$| = 1; # unbuffer STDOUT
sub fatal (@) { print STDERR "@_\n"; exit 1 }
sub _req_svn {
require SVN::Core; # use()-ing this causes segfaults for me... *shrug*
require SVN::Ra;
require SVN::Delta;
if ($SVN::Core::VERSION lt '1.1.0') {
fatal "Need SVN::Core 1.1.0 or better (got $SVN::Core::VERSION)";
}
}
my $can_compress = eval { require Compress::Zlib; 1};
push @Git::SVN::Ra::ISA, 'SVN::Ra';
push @SVN::Git::Editor::ISA, 'SVN::Delta::Editor';
push @SVN::Git::Fetcher::ISA, 'SVN::Delta::Editor';
use Carp qw/croak/;
use Digest::MD5;
use IO::File qw//;
use File::Basename qw/dirname basename/;
use File::Path qw/mkpath/;
use File::Spec;
use File::Find;
use Getopt::Long qw/:config gnu_getopt no_ignore_case auto_abbrev/;
use IPC::Open3;
use Git;
BEGIN {
# import functions from Git into our packages, en masse
no strict 'refs';
foreach (qw/command command_oneline command_noisy command_output_pipe
command_input_pipe command_close_pipe
command_bidi_pipe command_close_bidi_pipe/) {
for my $package ( qw(SVN::Git::Editor SVN::Git::Fetcher
Git::SVN::Migration Git::SVN::Log Git::SVN),
__PACKAGE__) {
*{"${package}::$_"} = \&{"Git::$_"};
}
}
}
my ($SVN);
$sha1 = qr/[a-f\d]{40}/;
$sha1_short = qr/[a-f\d]{4,40}/;
my ($_stdin, $_help, $_edit,
$_message, $_file, $_branch_dest,
$_template, $_shared,
$_version, $_fetch_all, $_no_rebase, $_fetch_parent,
$_merge, $_strategy, $_dry_run, $_local,
$_prefix, $_no_checkout, $_url, $_verbose,
$_git_format, $_commit_url, $_tag);
$Git::SVN::_follow_parent = 1;
$_q ||= 0;
my %remote_opts = ( 'username=s' => \$Git::SVN::Prompt::_username,
'config-dir=s' => \$Git::SVN::Ra::config_dir,
'no-auth-cache' => \$Git::SVN::Prompt::_no_auth_cache,
'ignore-paths=s' => \$SVN::Git::Fetcher::_ignore_regex );
my %fc_opts = ( 'follow-parent|follow!' => \$Git::SVN::_follow_parent,
'authors-file|A=s' => \$_authors,
'authors-prog=s' => \$_authors_prog,
'repack:i' => \$Git::SVN::_repack,
'noMetadata' => \$Git::SVN::_no_metadata,
'useSvmProps' => \$Git::SVN::_use_svm_props,
'useSvnsyncProps' => \$Git::SVN::_use_svnsync_props,
'log-window-size=i' => \$Git::SVN::Ra::_log_window_size,
'no-checkout' => \$_no_checkout,
'quiet|q+' => \$_q,
'repack-flags|repack-args|repack-opts=s' =>
\$Git::SVN::_repack_flags,
'use-log-author' => \$Git::SVN::_use_log_author,
'add-author-from' => \$Git::SVN::_add_author_from,
'localtime' => \$Git::SVN::_localtime,
%remote_opts );
my ($_trunk, @_tags, @_branches, $_stdlayout);
my %icv;
my %init_opts = ( 'template=s' => \$_template, 'shared:s' => \$_shared,
'trunk|T=s' => \$_trunk, 'tags|t=s@' => \@_tags,
'branches|b=s@' => \@_branches, 'prefix=s' => \$_prefix,
'stdlayout|s' => \$_stdlayout,
'minimize-url|m!' => \$Git::SVN::_minimize_url,
'no-metadata' => sub { $icv{noMetadata} = 1 },
'use-svm-props' => sub { $icv{useSvmProps} = 1 },
'use-svnsync-props' => sub { $icv{useSvnsyncProps} = 1 },
'rewrite-root=s' => sub { $icv{rewriteRoot} = $_[1] },
'rewrite-uuid=s' => sub { $icv{rewriteUUID} = $_[1] },
%remote_opts );
my %cmt_opts = ( 'edit|e' => \$_edit,
'rmdir' => \$SVN::Git::Editor::_rmdir,
'find-copies-harder' => \$SVN::Git::Editor::_find_copies_harder,
'l=i' => \$SVN::Git::Editor::_rename_limit,
'copy-similarity|C=i'=> \$SVN::Git::Editor::_cp_similarity
);
my %cmd = (
fetch => [ \&cmd_fetch, "Download new revisions from SVN",
{ 'revision|r=s' => \$_revision,
'fetch-all|all' => \$_fetch_all,
'parent|p' => \$_fetch_parent,
%fc_opts } ],
clone => [ \&cmd_clone, "Initialize and fetch revisions",
{ 'revision|r=s' => \$_revision,
%fc_opts, %init_opts } ],
init => [ \&cmd_init, "Initialize a repo for tracking" .
" (requires URL argument)",
\%init_opts ],
'multi-init' => [ \&cmd_multi_init,
"Deprecated alias for ".
"'$0 init -T<trunk> -b<branches> -t<tags>'",
\%init_opts ],
dcommit => [ \&cmd_dcommit,
'Commit several diffs to merge with upstream',
{ 'merge|m|M' => \$_merge,
'strategy|s=s' => \$_strategy,
'verbose|v' => \$_verbose,
'dry-run|n' => \$_dry_run,
'fetch-all|all' => \$_fetch_all,
'commit-url=s' => \$_commit_url,
'revision|r=i' => \$_revision,
'no-rebase' => \$_no_rebase,
%cmt_opts, %fc_opts } ],
branch => [ \&cmd_branch,
'Create a branch in the SVN repository',
{ 'message|m=s' => \$_message,
'destination|d=s' => \$_branch_dest,
'dry-run|n' => \$_dry_run,
'tag|t' => \$_tag,
'username=s' => \$Git::SVN::Prompt::_username,
'commit-url=s' => \$_commit_url } ],
tag => [ sub { $_tag = 1; cmd_branch(@_) },
'Create a tag in the SVN repository',
{ 'message|m=s' => \$_message,
'destination|d=s' => \$_branch_dest,
'dry-run|n' => \$_dry_run,
'username=s' => \$Git::SVN::Prompt::_username,
'commit-url=s' => \$_commit_url } ],
'set-tree' => [ \&cmd_set_tree,
"Set an SVN repository to a git tree-ish",
{ 'stdin' => \$_stdin, %cmt_opts, %fc_opts, } ],
'create-ignore' => [ \&cmd_create_ignore,
'Create a .gitignore per svn:ignore',
{ 'revision|r=i' => \$_revision
} ],
'mkdirs' => [ \&cmd_mkdirs ,
"recreate empty directories after a checkout",
{ 'revision|r=i' => \$_revision } ],
'propget' => [ \&cmd_propget,
'Print the value of a property on a file or directory',
{ 'revision|r=i' => \$_revision } ],
'proplist' => [ \&cmd_proplist,
'List all properties of a file or directory',
{ 'revision|r=i' => \$_revision } ],
'show-ignore' => [ \&cmd_show_ignore, "Show svn:ignore listings",
{ 'revision|r=i' => \$_revision
} ],
'show-externals' => [ \&cmd_show_externals, "Show svn:externals listings",
{ 'revision|r=i' => \$_revision
} ],
'multi-fetch' => [ \&cmd_multi_fetch,
"Deprecated alias for $0 fetch --all",
{ 'revision|r=s' => \$_revision, %fc_opts } ],
'migrate' => [ sub { },
# no-op, we automatically run this anyways,
'Migrate configuration/metadata/layout from
previous versions of git-svn',
{ 'minimize' => \$Git::SVN::Migration::_minimize,
%remote_opts } ],
'log' => [ \&Git::SVN::Log::cmd_show_log, 'Show commit logs',
{ 'limit=i' => \$Git::SVN::Log::limit,
'revision|r=s' => \$_revision,
'verbose|v' => \$Git::SVN::Log::verbose,
'incremental' => \$Git::SVN::Log::incremental,
'oneline' => \$Git::SVN::Log::oneline,
'show-commit' => \$Git::SVN::Log::show_commit,
'non-recursive' => \$Git::SVN::Log::non_recursive,
'authors-file|A=s' => \$_authors,
'color' => \$Git::SVN::Log::color,
'pager=s' => \$Git::SVN::Log::pager
} ],
'find-rev' => [ \&cmd_find_rev,
"Translate between SVN revision numbers and tree-ish",
{} ],
'rebase' => [ \&cmd_rebase, "Fetch and rebase your working directory",
{ 'merge|m|M' => \$_merge,
'verbose|v' => \$_verbose,
'strategy|s=s' => \$_strategy,
'local|l' => \$_local,
'fetch-all|all' => \$_fetch_all,
'dry-run|n' => \$_dry_run,
%fc_opts } ],
'commit-diff' => [ \&cmd_commit_diff,
'Commit a diff between two trees',
{ 'message|m=s' => \$_message,
'file|F=s' => \$_file,
'revision|r=s' => \$_revision,
%cmt_opts } ],
'info' => [ \&cmd_info,
"Show info about the latest SVN revision
on the current branch",
{ 'url' => \$_url, } ],
'blame' => [ \&Git::SVN::Log::cmd_blame,
"Show what revision and author last modified each line of a file",
{ 'git-format' => \$_git_format } ],
'reset' => [ \&cmd_reset,
"Undo fetches back to the specified SVN revision",
{ 'revision|r=s' => \$_revision,
'parent|p' => \$_fetch_parent } ],
'gc' => [ \&cmd_gc,
"Compress unhandled.log files in .git/svn and remove " .
"index files in .git/svn",
{} ],
);
my $cmd;
for (my $i = 0; $i < @ARGV; $i++) {
if (defined $cmd{$ARGV[$i]}) {
$cmd = $ARGV[$i];
splice @ARGV, $i, 1;
last;
} elsif ($ARGV[$i] eq 'help') {
$cmd = $ARGV[$i+1];
usage(0);
}
};
# make sure we're always running at the top-level working directory
unless ($cmd && $cmd =~ /(?:clone|init|multi-init)$/) {
unless (-d $ENV{GIT_DIR}) {
if ($git_dir_user_set) {
die "GIT_DIR=$ENV{GIT_DIR} explicitly set, ",
"but it is not a directory\n";
}
my $git_dir = delete $ENV{GIT_DIR};
my $cdup = undef;
git_cmd_try {
$cdup = command_oneline(qw/rev-parse --show-cdup/);
$git_dir = '.' unless ($cdup);
chomp $cdup if ($cdup);
$cdup = "." unless ($cdup && length $cdup);
} "Already at toplevel, but $git_dir not found\n";
chdir $cdup or die "Unable to chdir up to '$cdup'\n";
unless (-d $git_dir) {
die "$git_dir still not found after going to ",
"'$cdup'\n";
}
$ENV{GIT_DIR} = $git_dir;
}
$_repository = Git->repository(Repository => $ENV{GIT_DIR});
}
my %opts = %{$cmd{$cmd}->[2]} if (defined $cmd);
read_git_config(\%opts);
if ($cmd && ($cmd eq 'log' || $cmd eq 'blame')) {
Getopt::Long::Configure('pass_through');
}
my $rv = GetOptions(%opts, 'help|H|h' => \$_help, 'version|V' => \$_version,
'minimize-connections' => \$Git::SVN::Migration::_minimize,
'id|i=s' => \$Git::SVN::default_ref_id,
'svn-remote|remote|R=s' => sub {
$Git::SVN::no_reuse_existing = 1;
$Git::SVN::default_repo_id = $_[1] });
exit 1 if (!$rv && $cmd && $cmd ne 'log');
usage(0) if $_help;
version() if $_version;
usage(1) unless defined $cmd;
load_authors() if $_authors;
if (defined $_authors_prog) {
$_authors_prog = "'" . File::Spec->rel2abs($_authors_prog) . "'";
}
unless ($cmd =~ /^(?:clone|init|multi-init|commit-diff)$/) {
Git::SVN::Migration::migration_check();
}
Git::SVN::init_vars();
eval {
Git::SVN::verify_remotes_sanity();
$cmd{$cmd}->[0]->(@ARGV);
};
fatal $@ if $@;
post_fetch_checkout();
exit 0;
####################### primary functions ######################
sub usage {
my $exit = shift || 0;
my $fd = $exit ? \*STDERR : \*STDOUT;
print $fd <<"";
git-svn - bidirectional operations between a single Subversion tree and git
Usage: git svn <command> [options] [arguments]\n
print $fd "Available commands:\n" unless $cmd;
foreach (sort keys %cmd) {
next if $cmd && $cmd ne $_;
next if /^multi-/; # don't show deprecated commands
print $fd ' ',pack('A17',$_),$cmd{$_}->[1],"\n";
foreach (sort keys %{$cmd{$_}->[2]}) {
# mixed-case options are for .git/config only
next if /[A-Z]/ && /^[a-z]+$/i;
# prints out arguments as they should be passed:
my $x = s#[:=]s$## ? '<arg>' : s#[:=]i$## ? '<num>' : '';
print $fd ' ' x 21, join(', ', map { length $_ > 1 ?
"--$_" : "-$_" }
split /\|/,$_)," $x\n";
}
}
print $fd <<"";
\nGIT_SVN_ID may be set in the environment or via the --id/-i switch to an
arbitrary identifier if you're tracking multiple SVN branches/repositories in
one git repository and want to keep them separate. See git-svn(1) for more
information.
exit $exit;
}
sub version {
::_req_svn();
print "git-svn version $VERSION (svn $SVN::Core::VERSION)\n";
exit 0;
}
sub do_git_init_db {
unless (-d $ENV{GIT_DIR}) {
my @init_db = ('init');
push @init_db, "--template=$_template" if defined $_template;
if (defined $_shared) {
if ($_shared =~ /[a-z]/) {
push @init_db, "--shared=$_shared";
} else {
push @init_db, "--shared";
}
}
command_noisy(@init_db);
$_repository = Git->repository(Repository => ".git");
}
my $set;
my $pfx = "svn-remote.$Git::SVN::default_repo_id";
foreach my $i (keys %icv) {
die "'$set' and '$i' cannot both be set\n" if $set;
next unless defined $icv{$i};
command_noisy('config', "$pfx.$i", $icv{$i});
$set = $i;
}
my $ignore_regex = \$SVN::Git::Fetcher::_ignore_regex;
command_noisy('config', "$pfx.ignore-paths", $$ignore_regex)
if defined $$ignore_regex;
}
sub init_subdir {
my $repo_path = shift or return;
mkpath([$repo_path]) unless -d $repo_path;
chdir $repo_path or die "Couldn't chdir to $repo_path: $!\n";
$ENV{GIT_DIR} = '.git';
$_repository = Git->repository(Repository => $ENV{GIT_DIR});
}
sub cmd_clone {
my ($url, $path) = @_;
if (!defined $path &&
(defined $_trunk || @_branches || @_tags ||
defined $_stdlayout) &&
$url !~ m#^[a-z\+]+://#) {
$path = $url;
}
$path = basename($url) if !defined $path || !length $path;
my $authors_absolute = $_authors ? File::Spec->rel2abs($_authors) : "";
cmd_init($url, $path);
command_oneline('config', 'svn.authorsfile', $authors_absolute)
if $_authors;
Git::SVN::fetch_all($Git::SVN::default_repo_id);
}
sub cmd_init {
if (defined $_stdlayout) {
$_trunk = 'trunk' if (!defined $_trunk);
@_tags = 'tags' if (! @_tags);
@_branches = 'branches' if (! @_branches);
}
if (defined $_trunk || @_branches || @_tags) {
return cmd_multi_init(@_);
}
my $url = shift or die "SVN repository location required ",
"as a command-line argument\n";
$url = canonicalize_url($url);
init_subdir(@_);
do_git_init_db();
if ($Git::SVN::_minimize_url eq 'unset') {
$Git::SVN::_minimize_url = 0;
}
Git::SVN->init($url);
}
sub cmd_fetch {
if (grep /^\d+=./, @_) {
die "'<rev>=<commit>' fetch arguments are ",
"no longer supported.\n";
}
my ($remote) = @_;
if (@_ > 1) {
die "Usage: $0 fetch [--all] [--parent] [svn-remote]\n";
}
$Git::SVN::no_reuse_existing = undef;
if ($_fetch_parent) {
my ($url, $rev, $uuid, $gs) = working_head_info('HEAD');
unless ($gs) {
die "Unable to determine upstream SVN information from ",
"working tree history\n";
}
# just fetch, don't checkout.
$_no_checkout = 'true';
$_fetch_all ? $gs->fetch_all : $gs->fetch;
} elsif ($_fetch_all) {
cmd_multi_fetch();
} else {
$remote ||= $Git::SVN::default_repo_id;
Git::SVN::fetch_all($remote, Git::SVN::read_all_remotes());
}
}
sub cmd_set_tree {
my (@commits) = @_;
if ($_stdin || !@commits) {
print "Reading from stdin...\n";
@commits = ();
while (<STDIN>) {
if (/\b($sha1_short)\b/o) {
unshift @commits, $1;
}
}
}
my @revs;
foreach my $c (@commits) {
my @tmp = command('rev-parse',$c);
if (scalar @tmp == 1) {
push @revs, $tmp[0];
} elsif (scalar @tmp > 1) {
push @revs, reverse(command('rev-list',@tmp));
} else {
fatal "Failed to rev-parse $c";
}
}
my $gs = Git::SVN->new;
my ($r_last, $cmt_last) = $gs->last_rev_commit;
$gs->fetch;
if (defined $gs->{last_rev} && $r_last != $gs->{last_rev}) {
fatal "There are new revisions that were fetched ",
"and need to be merged (or acknowledged) ",
"before committing.\nlast rev: $r_last\n",
" current: $gs->{last_rev}";
}
$gs->set_tree($_) foreach @revs;
print "Done committing ",scalar @revs," revisions to SVN\n";
unlink $gs->{index};
}
sub cmd_dcommit {
my $head = shift;
git_cmd_try { command_oneline(qw/diff-index --quiet HEAD/) }
'Cannot dcommit with a dirty index. Commit your changes first, '
. "or stash them with `git stash'.\n";
$head ||= 'HEAD';
my $old_head;
if ($head ne 'HEAD') {
$old_head = eval {
command_oneline([qw/symbolic-ref -q HEAD/])
};
if ($old_head) {
$old_head =~ s{^refs/heads/}{};
} else {
$old_head = eval { command_oneline(qw/rev-parse HEAD/) };
}
command(['checkout', $head], STDERR => 0);
}
my @refs;
my ($url, $rev, $uuid, $gs) = working_head_info('HEAD', \@refs);
unless ($gs) {
die "Unable to determine upstream SVN information from ",
"$head history.\nPerhaps the repository is empty.";
}
if (defined $_commit_url) {
$url = $_commit_url;
} else {
$url = eval { command_oneline('config', '--get',
"svn-remote.$gs->{repo_id}.commiturl") };
if (!$url) {
$url = $gs->full_url
}
}
my $last_rev = $_revision if defined $_revision;
if ($url) {
print "Committing to $url ...\n";
}
my ($linear_refs, $parents) = linearize_history($gs, \@refs);
if ($_no_rebase && scalar(@$linear_refs) > 1) {
warn "Attempting to commit more than one change while ",
"--no-rebase is enabled.\n",
"If these changes depend on each other, re-running ",
"without --no-rebase may be required."
}
my $expect_url = $url;
Git::SVN::remove_username($expect_url);
while (1) {
my $d = shift @$linear_refs or last;
unless (defined $last_rev) {
(undef, $last_rev, undef) = cmt_metadata("$d~1");
unless (defined $last_rev) {
fatal "Unable to extract revision information ",
"from commit $d~1";
}
}
if ($_dry_run) {
print "diff-tree $d~1 $d\n";
} else {
my $cmt_rev;
my %ed_opts = ( r => $last_rev,
log => get_commit_entry($d)->{log},
ra => Git::SVN::Ra->new($url),
config => SVN::Core::config_get_config(
$Git::SVN::Ra::config_dir
),
tree_a => "$d~1",
tree_b => $d,
editor_cb => sub {
print "Committed r$_[0]\n";
$cmt_rev = $_[0];
},
svn_path => '');
if (!SVN::Git::Editor->new(\%ed_opts)->apply_diff) {
print "No changes\n$d~1 == $d\n";
} elsif ($parents->{$d} && @{$parents->{$d}}) {
$gs->{inject_parents_dcommit}->{$cmt_rev} =
$parents->{$d};
}
$_fetch_all ? $gs->fetch_all : $gs->fetch;
$last_rev = $cmt_rev;
next if $_no_rebase;
# we always want to rebase against the current HEAD,
# not any head that was passed to us
my @diff = command('diff-tree', $d,
$gs->refname, '--');
my @finish;
if (@diff) {
@finish = rebase_cmd();
print STDERR "W: $d and ", $gs->refname,
" differ, using @finish:\n",
join("\n", @diff), "\n";
} else {
print "No changes between current HEAD and ",
$gs->refname,
"\nResetting to the latest ",
$gs->refname, "\n";
@finish = qw/reset --mixed/;
}
command_noisy(@finish, $gs->refname);
if (@diff) {
@refs = ();
my ($url_, $rev_, $uuid_, $gs_) =
working_head_info('HEAD', \@refs);
my ($linear_refs_, $parents_) =
linearize_history($gs_, \@refs);
if (scalar(@$linear_refs) !=
scalar(@$linear_refs_)) {
fatal "# of revisions changed ",
"\nbefore:\n",
join("\n", @$linear_refs),
"\n\nafter:\n",
join("\n", @$linear_refs_), "\n",
'If you are attempting to commit ',
"merges, try running:\n\t",
'git rebase --interactive',
'--preserve-merges ',
$gs->refname,
"\nBefore dcommitting";
}
if ($url_ ne $expect_url) {
if ($url_ eq $gs->metadata_url) {
print
"Accepting rewritten URL:",
" $url_\n";
} else {
fatal
"URL mismatch after rebase:",
" $url_ != $expect_url";
}
}
if ($uuid_ ne $uuid) {
fatal "uuid mismatch after rebase: ",
"$uuid_ != $uuid";
}
# remap parents
my (%p, @l, $i);
for ($i = 0; $i < scalar @$linear_refs; $i++) {
my $new = $linear_refs_->[$i] or next;
$p{$new} =
$parents->{$linear_refs->[$i]};
push @l, $new;
}
$parents = \%p;
$linear_refs = \@l;
}
}
}
if ($old_head) {
my $new_head = command_oneline(qw/rev-parse HEAD/);
my $new_is_symbolic = eval {
command_oneline(qw/symbolic-ref -q HEAD/);
};
if ($new_is_symbolic) {
print "dcommitted the branch ", $head, "\n";
} else {
print "dcommitted on a detached HEAD because you gave ",
"a revision argument.\n",
"The rewritten commit is: ", $new_head, "\n";
}
command(['checkout', $old_head], STDERR => 0);
}
unlink $gs->{index};
}
sub cmd_branch {
my ($branch_name, $head) = @_;
unless (defined $branch_name && length $branch_name) {
die(($_tag ? "tag" : "branch") . " name required\n");
}
$head ||= 'HEAD';
my (undef, $rev, undef, $gs) = working_head_info($head);
my $src = $gs->full_url;
my $remote = Git::SVN::read_all_remotes()->{$gs->{repo_id}};
my $allglobs = $remote->{ $_tag ? 'tags' : 'branches' };
my $glob;
if ($#{$allglobs} == 0) {
$glob = $allglobs->[0];
} else {
unless(defined $_branch_dest) {
die "Multiple ",
$_tag ? "tag" : "branch",
" paths defined for Subversion repository.\n",
"You must specify where you want to create the ",
$_tag ? "tag" : "branch",
" with the --destination argument.\n";
}
foreach my $g (@{$allglobs}) {
# SVN::Git::Editor could probably be moved to Git.pm..
my $re = SVN::Git::Editor::glob2pat($g->{path}->{left});
if ($_branch_dest =~ /$re/) {
$glob = $g;
last;
}
}
unless (defined $glob) {
my $dest_re = qr/\b\Q$_branch_dest\E\b/;
foreach my $g (@{$allglobs}) {
$g->{path}->{left} =~ /$dest_re/ or next;
if (defined $glob) {
die "Ambiguous destination: ",
$_branch_dest, "\nmatches both '",
$glob->{path}->{left}, "' and '",
$g->{path}->{left}, "'\n";
}
$glob = $g;
}
unless (defined $glob) {
die "Unknown ",
$_tag ? "tag" : "branch",
" destination $_branch_dest\n";
}
}
}
my ($lft, $rgt) = @{ $glob->{path} }{qw/left right/};
my $url;
if (defined $_commit_url) {
$url = $_commit_url;
} else {
$url = eval { command_oneline('config', '--get',
"svn-remote.$gs->{repo_id}.commiturl") };
if (!$url) {
$url = $remote->{url};
}
}
my $dst = join '/', $url, $lft, $branch_name, ($rgt || ());
if ($dst =~ /^https:/ && $src =~ /^http:/) {
$src=~s/^http:/https:/;
}
::_req_svn();
my $ctx = SVN::Client->new(
auth => Git::SVN::Ra::_auth_providers(),
log_msg => sub {
${ $_[0] } = defined $_message
? $_message
: 'Create ' . ($_tag ? 'tag ' : 'branch ' )
. $branch_name;
},
);
eval {
$ctx->ls($dst, 'HEAD', 0);
} and die "branch ${branch_name} already exists\n";
print "Copying ${src} at r${rev} to ${dst}...\n";
$ctx->copy($src, $rev, $dst)
unless $_dry_run;
$gs->fetch_all;
}
sub cmd_find_rev {
my $revision_or_hash = shift or die "SVN or git revision required ",
"as a command-line argument\n";
my $result;
if ($revision_or_hash =~ /^r\d+$/) {
my $head = shift;
$head ||= 'HEAD';
my @refs;
my (undef, undef, $uuid, $gs) = working_head_info($head, \@refs);
unless ($gs) {
die "Unable to determine upstream SVN information from ",
"$head history\n";
}
my $desired_revision = substr($revision_or_hash, 1);
$result = $gs->rev_map_get($desired_revision, $uuid);
} else {
my (undef, $rev, undef) = cmt_metadata($revision_or_hash);
$result = $rev;
}
print "$result\n" if $result;
}
sub cmd_rebase {
command_noisy(qw/update-index --refresh/);
my ($url, $rev, $uuid, $gs) = working_head_info('HEAD');
unless ($gs) {
die "Unable to determine upstream SVN information from ",
"working tree history\n";
}
if ($_dry_run) {
print "Remote Branch: " . $gs->refname . "\n";
print "SVN URL: " . $url . "\n";
return;
}
if (command(qw/diff-index HEAD --/)) {
print STDERR "Cannot rebase with uncommited changes:\n";
command_noisy('status');
exit 1;
}
unless ($_local) {
# rebase will checkout for us, so no need to do it explicitly
$_no_checkout = 'true';
$_fetch_all ? $gs->fetch_all : $gs->fetch;
}
command_noisy(rebase_cmd(), $gs->refname);
$gs->mkemptydirs;
}
sub cmd_show_ignore {
my ($url, $rev, $uuid, $gs) = working_head_info('HEAD');
$gs ||= Git::SVN->new;
my $r = (defined $_revision ? $_revision : $gs->ra->get_latest_revnum);
$gs->prop_walk($gs->{path}, $r, sub {
my ($gs, $path, $props) = @_;
print STDOUT "\n# $path\n";
my $s = $props->{'svn:ignore'} or return;
$s =~ s/[\r\n]+/\n/g;
$s =~ s/^\n+//;
chomp $s;
$s =~ s#^#$path#gm;
print STDOUT "$s\n";
});
}
sub cmd_show_externals {
my ($url, $rev, $uuid, $gs) = working_head_info('HEAD');
$gs ||= Git::SVN->new;
my $r = (defined $_revision ? $_revision : $gs->ra->get_latest_revnum);
$gs->prop_walk($gs->{path}, $r, sub {
my ($gs, $path, $props) = @_;
print STDOUT "\n# $path\n";
my $s = $props->{'svn:externals'} or return;
$s =~ s/[\r\n]+/\n/g;
chomp $s;
$s =~ s#^#$path#gm;
print STDOUT "$s\n";
});
}
sub cmd_create_ignore {
my ($url, $rev, $uuid, $gs) = working_head_info('HEAD');
$gs ||= Git::SVN->new;
my $r = (defined $_revision ? $_revision : $gs->ra->get_latest_revnum);
$gs->prop_walk($gs->{path}, $r, sub {
my ($gs, $path, $props) = @_;
# $path is of the form /path/to/dir/
$path = '.' . $path;
# SVN can have attributes on empty directories,
# which git won't track
mkpath([$path]) unless -d $path;
my $ignore = $path . '.gitignore';
my $s = $props->{'svn:ignore'} or return;
open(GITIGNORE, '>', $ignore)
or fatal("Failed to open `$ignore' for writing: $!");
$s =~ s/[\r\n]+/\n/g;
$s =~ s/^\n+//;
chomp $s;
# Prefix all patterns so that the ignore doesn't apply
# to sub-directories.
$s =~ s#^#/#gm;
print GITIGNORE "$s\n";
close(GITIGNORE)
or fatal("Failed to close `$ignore': $!");
command_noisy('add', '-f', $ignore);
});
}
sub cmd_mkdirs {
my ($url, $rev, $uuid, $gs) = working_head_info('HEAD');
$gs ||= Git::SVN->new;
$gs->mkemptydirs($_revision);
}
sub canonicalize_path {
my ($path) = @_;
my $dot_slash_added = 0;
if (substr($path, 0, 1) ne "/") {
$path = "./" . $path;
$dot_slash_added = 1;
}
# File::Spec->canonpath doesn't collapse x/../y into y (for a
# good reason), so let's do this manually.
$path =~ s#/+#/#g;
$path =~ s#/\.(?:/|$)#/#g;
$path =~ s#/[^/]+/\.\.##g;
$path =~ s#/$##g;
$path =~ s#^\./## if $dot_slash_added;
$path =~ s#^/##;
$path =~ s#^\.$##;
return $path;
}
sub canonicalize_url {
my ($url) = @_;
$url =~ s#^([^:]+://[^/]*/)(.*)$#$1 . canonicalize_path($2)#e;
return $url;
}
# get_svnprops(PATH)
# ------------------
# Helper for cmd_propget and cmd_proplist below.
sub get_svnprops {
my $path = shift;
my ($url, $rev, $uuid, $gs) = working_head_info('HEAD');
$gs ||= Git::SVN->new;
# prefix THE PATH by the sub-directory from which the user
# invoked us.
$path = $cmd_dir_prefix . $path;
fatal("No such file or directory: $path") unless -e $path;
my $is_dir = -d $path ? 1 : 0;
$path = $gs->{path} . '/' . $path;
# canonicalize the path (otherwise libsvn will abort or fail to
# find the file)
$path = canonicalize_path($path);
my $r = (defined $_revision ? $_revision : $gs->ra->get_latest_revnum);
my $props;
if ($is_dir) {
(undef, undef, $props) = $gs->ra->get_dir($path, $r);
}
else {
(undef, $props) = $gs->ra->get_file($path, $r, undef);
}
return $props;
}
# cmd_propget (PROP, PATH)
# ------------------------
# Print the SVN property PROP for PATH.
sub cmd_propget {
my ($prop, $path) = @_;
$path = '.' if not defined $path;
usage(1) if not defined $prop;
my $props = get_svnprops($path);
if (not defined $props->{$prop}) {
fatal("`$path' does not have a `$prop' SVN property.");
}
print $props->{$prop} . "\n";
}
# cmd_proplist (PATH)
# -------------------
# Print the list of SVN properties for PATH.
sub cmd_proplist {
my $path = shift;
$path = '.' if not defined $path;
my $props = get_svnprops($path);
print "Properties on '$path':\n";
foreach (sort keys %{$props}) {
print " $_\n";
}
}
sub cmd_multi_init {
my $url = shift;
unless (defined $_trunk || @_branches || @_tags) {
usage(1);
}
$_prefix = '' unless defined $_prefix;
if (defined $url) {
$url = canonicalize_url($url);
init_subdir(@_);
}
do_git_init_db();
if (defined $_trunk) {
$_trunk =~ s#^/+##;
my $trunk_ref = 'refs/remotes/' . $_prefix . 'trunk';
# try both old-style and new-style lookups:
my $gs_trunk = eval { Git::SVN->new($trunk_ref) };
unless ($gs_trunk) {
my ($trunk_url, $trunk_path) =
complete_svn_url($url, $_trunk);
$gs_trunk = Git::SVN->init($trunk_url, $trunk_path,
undef, $trunk_ref);
}
}
return unless @_branches || @_tags;
my $ra = $url ? Git::SVN::Ra->new($url) : undef;
foreach my $path (@_branches) {
complete_url_ls_init($ra, $path, '--branches/-b', $_prefix);
}
foreach my $path (@_tags) {
complete_url_ls_init($ra, $path, '--tags/-t', $_prefix.'tags/');
}
}
sub cmd_multi_fetch {
$Git::SVN::no_reuse_existing = undef;
my $remotes = Git::SVN::read_all_remotes();
foreach my $repo_id (sort keys %$remotes) {
if ($remotes->{$repo_id}->{url}) {
Git::SVN::fetch_all($repo_id, $remotes);
}
}
}
# this command is special because it requires no metadata
sub cmd_commit_diff {
my ($ta, $tb, $url) = @_;
my $usage = "Usage: $0 commit-diff -r<revision> ".
"<tree-ish> <tree-ish> [<URL>]";
fatal($usage) if (!defined $ta || !defined $tb);
my $svn_path = '';
if (!defined $url) {
my $gs = eval { Git::SVN->new };
if (!$gs) {
fatal("Needed URL or usable git-svn --id in ",
"the command-line\n", $usage);
}
$url = $gs->{url};
$svn_path = $gs->{path};
}
unless (defined $_revision) {
fatal("-r|--revision is a required argument\n", $usage);
}
if (defined $_message && defined $_file) {
fatal("Both --message/-m and --file/-F specified ",
"for the commit message.\n",
"I have no idea what you mean");
}
if (defined $_file) {
$_message = file_to_s($_file);
} else {
$_message ||= get_commit_entry($tb)->{log};
}
my $ra ||= Git::SVN::Ra->new($url);
my $r = $_revision;
if ($r eq 'HEAD') {
$r = $ra->get_latest_revnum;
} elsif ($r !~ /^\d+$/) {
die "revision argument: $r not understood by git-svn\n";
}
my %ed_opts = ( r => $r,
log => $_message,
ra => $ra,
tree_a => $ta,
tree_b => $tb,
editor_cb => sub { print "Committed r$_[0]\n" },
svn_path => $svn_path );
if (!SVN::Git::Editor->new(\%ed_opts)->apply_diff) {
print "No changes\n$ta == $tb\n";
}
}
sub escape_uri_only {
my ($uri) = @_;
my @tmp;
foreach (split m{/}, $uri) {
s/([^~\w.%+-]|%(?![a-fA-F0-9]{2}))/sprintf("%%%02X",ord($1))/eg;
push @tmp, $_;
}
join('/', @tmp);
}
sub escape_url {
my ($url) = @_;
if ($url =~ m#^([^:]+)://([^/]*)(.*)$#) {
my ($scheme, $domain, $uri) = ($1, $2, escape_uri_only($3));
$url = "$scheme://$domain$uri";
}
$url;
}
sub cmd_info {
my $path = canonicalize_path(defined($_[0]) ? $_[0] : ".");
my $fullpath = canonicalize_path($cmd_dir_prefix . $path);
if (exists $_[1]) {
die "Too many arguments specified\n";
}
my ($file_type, $diff_status) = find_file_type_and_diff_status($path);
if (!$file_type && !$diff_status) {
print STDERR "svn: '$path' is not under version control\n";
exit 1;
}
my ($url, $rev, $uuid, $gs) = working_head_info('HEAD');
unless ($gs) {
die "Unable to determine upstream SVN information from ",
"working tree history\n";
}
# canonicalize_path() will return "" to make libsvn 1.5.x happy,
$path = "." if $path eq "";
my $full_url = $url . ($fullpath eq "" ? "" : "/$fullpath");
if ($_url) {
print escape_url($full_url), "\n";
return;
}
my $result = "Path: $path\n";
$result .= "Name: " . basename($path) . "\n" if $file_type ne "dir";
$result .= "URL: " . escape_url($full_url) . "\n";
eval {
my $repos_root = $gs->repos_root;
Git::SVN::remove_username($repos_root);
$result .= "Repository Root: " . escape_url($repos_root) . "\n";
};
if ($@) {
$result .= "Repository Root: (offline)\n";
}
::_req_svn();
$result .= "Repository UUID: $uuid\n" unless $diff_status eq "A" &&
($SVN::Core::VERSION le '1.5.4' || $file_type ne "dir");
$result .= "Revision: " . ($diff_status eq "A" ? 0 : $rev) . "\n";
$result .= "Node Kind: " .
($file_type eq "dir" ? "directory" : "file") . "\n";
my $schedule = $diff_status eq "A"
? "add"
: ($diff_status eq "D" ? "delete" : "normal");
$result .= "Schedule: $schedule\n";
if ($diff_status eq "A") {
print $result, "\n";
return;
}
my ($lc_author, $lc_rev, $lc_date_utc);
my @args = Git::SVN::Log::git_svn_log_cmd($rev, $rev, "--", $fullpath);
my $log = command_output_pipe(@args);
my $esc_color = qr/(?:\033\[(?:(?:\d+;)*\d*)?m)*/;
while (<$log>) {
if (/^${esc_color}author (.+) <[^>]+> (\d+) ([\-\+]?\d+)$/o) {
$lc_author = $1;
$lc_date_utc = Git::SVN::Log::parse_git_date($2, $3);
} elsif (/^${esc_color} (git-svn-id:.+)$/o) {
(undef, $lc_rev, undef) = ::extract_metadata($1);
}
}
close $log;
Git::SVN::Log::set_local_timezone();
$result .= "Last Changed Author: $lc_author\n";
$result .= "Last Changed Rev: $lc_rev\n";
$result .= "Last Changed Date: " .
Git::SVN::Log::format_svn_date($lc_date_utc) . "\n";
if ($file_type ne "dir") {
my $text_last_updated_date =
($diff_status eq "D" ? $lc_date_utc : (stat $path)[9]);
$result .=
"Text Last Updated: " .
Git::SVN::Log::format_svn_date($text_last_updated_date) .
"\n";
my $checksum;
if ($diff_status eq "D") {
my ($fh, $ctx) =
command_output_pipe(qw(cat-file blob), "HEAD:$path");
if ($file_type eq "link") {
my $file_name = <$fh>;
$checksum = md5sum("link $file_name");
} else {
$checksum = md5sum($fh);
}
command_close_pipe($fh, $ctx);
} elsif ($file_type eq "link") {
my $file_name =
command(qw(cat-file blob), "HEAD:$path");
$checksum =
md5sum("link " . $file_name);
} else {
open FILE, "<", $path or die $!;
$checksum = md5sum(\*FILE);
close FILE or die $!;
}
$result .= "Checksum: " . $checksum . "\n";
}
print $result, "\n";
}
sub cmd_reset {
my $target = shift || $_revision or die "SVN revision required\n";
$target = $1 if $target =~ /^r(\d+)$/;
$target =~ /^\d+$/ or die "Numeric SVN revision expected\n";
my ($url, $rev, $uuid, $gs) = working_head_info('HEAD');
unless ($gs) {
die "Unable to determine upstream SVN information from ".
"history\n";
}
my ($r, $c) = $gs->find_rev_before($target, not $_fetch_parent);
die "Cannot find SVN revision $target\n" unless defined($c);
$gs->rev_map_set($r, $c, 'reset', $uuid);
print "r$r = $c ($gs->{ref_id})\n";
}
sub cmd_gc {
if (!$can_compress) {
warn "Compress::Zlib could not be found; unhandled.log " .
"files will not be compressed.\n";
}
find({ wanted => \&gc_directory, no_chdir => 1}, "$ENV{GIT_DIR}/svn");
}
########################### utility functions #########################
sub rebase_cmd {
my @cmd = qw/rebase/;
push @cmd, '-v' if $_verbose;
push @cmd, qw/--merge/ if $_merge;
push @cmd, "--strategy=$_strategy" if $_strategy;
@cmd;
}
sub post_fetch_checkout {
return if $_no_checkout;
my $gs = $Git::SVN::_head or return;
return if verify_ref('refs/heads/master^0');
# look for "trunk" ref if it exists
my $remote = Git::SVN::read_all_remotes()->{$gs->{repo_id}};
my $fetch = $remote->{fetch};
if ($fetch) {
foreach my $p (keys %$fetch) {
basename($fetch->{$p}) eq 'trunk' or next;
$gs = Git::SVN->new($fetch->{$p}, $gs->{repo_id}, $p);
last;
}
}
my $valid_head = verify_ref('HEAD^0');
command_noisy(qw(update-ref refs/heads/master), $gs->refname);
return if ($valid_head || !verify_ref('HEAD^0'));
return if $ENV{GIT_DIR} !~ m#^(?:.*/)?\.git$#;
my $index = $ENV{GIT_INDEX_FILE} || "$ENV{GIT_DIR}/index";
return if -f $index;
return if command_oneline(qw/rev-parse --is-inside-work-tree/) eq 'false';
return if command_oneline(qw/rev-parse --is-inside-git-dir/) eq 'true';
command_noisy(qw/read-tree -m -u -v HEAD HEAD/);
print STDERR "Checked out HEAD:\n ",
$gs->full_url, " r", $gs->last_rev, "\n";
$gs->mkemptydirs($gs->last_rev);
}
sub complete_svn_url {
my ($url, $path) = @_;
$path =~ s#/+$##;
if ($path !~ m#^[a-z\+]+://#) {
if (!defined $url || $url !~ m#^[a-z\+]+://#) {
fatal("E: '$path' is not a complete URL ",
"and a separate URL is not specified");
}
return ($url, $path);
}
return ($path, '');
}
sub complete_url_ls_init {
my ($ra, $repo_path, $switch, $pfx) = @_;
unless ($repo_path) {
print STDERR "W: $switch not specified\n";
return;
}
$repo_path =~ s#/+$##;
if ($repo_path =~ m#^[a-z\+]+://#) {
$ra = Git::SVN::Ra->new($repo_path);
$repo_path = '';
} else {
$repo_path =~ s#^/+##;
unless ($ra) {
fatal("E: '$repo_path' is not a complete URL ",
"and a separate URL is not specified");
}
}
my $url = $ra->{url};
my $gs = Git::SVN->init($url, undef, undef, undef, 1);
my $k = "svn-remote.$gs->{repo_id}.url";
my $orig_url = eval { command_oneline(qw/config --get/, $k) };
if ($orig_url && ($orig_url ne $gs->{url})) {
die "$k already set: $orig_url\n",
"wanted to set to: $gs->{url}\n";
}
command_oneline('config', $k, $gs->{url}) unless $orig_url;
my $remote_path = "$gs->{path}/$repo_path";
$remote_path =~ s{%([0-9A-F]{2})}{chr hex($1)}ieg;
$remote_path =~ s#/+#/#g;
$remote_path =~ s#^/##g;
$remote_path .= "/*" if $remote_path !~ /\*/;
my ($n) = ($switch =~ /^--(\w+)/);
if (length $pfx && $pfx !~ m#/$#) {
die "--prefix='$pfx' must have a trailing slash '/'\n";
}
command_noisy('config',
'--add',
"svn-remote.$gs->{repo_id}.$n",
"$remote_path:refs/remotes/$pfx*" .
('/*' x (($remote_path =~ tr/*/*/) - 1)) );
}
sub verify_ref {
my ($ref) = @_;
eval { command_oneline([ 'rev-parse', '--verify', $ref ],
{ STDERR => 0 }); };
}
sub get_tree_from_treeish {
my ($treeish) = @_;
# $treeish can be a symbolic ref, too:
my $type = command_oneline(qw/cat-file -t/, $treeish);
my $expected;
while ($type eq 'tag') {
($treeish, $type) = command(qw/cat-file tag/, $treeish);
}
if ($type eq 'commit') {
$expected = (grep /^tree /, command(qw/cat-file commit/,
$treeish))[0];
($expected) = ($expected =~ /^tree ($sha1)$/o);
die "Unable to get tree from $treeish\n" unless $expected;
} elsif ($type eq 'tree') {
$expected = $treeish;
} else {
die "$treeish is a $type, expected tree, tag or commit\n";
}
return $expected;
}
sub get_commit_entry {
my ($treeish) = shift;
my %log_entry = ( log => '', tree => get_tree_from_treeish($treeish) );
my $commit_editmsg = "$ENV{GIT_DIR}/COMMIT_EDITMSG";
my $commit_msg = "$ENV{GIT_DIR}/COMMIT_MSG";
open my $log_fh, '>', $commit_editmsg or croak $!;
my $type = command_oneline(qw/cat-file -t/, $treeish);
if ($type eq 'commit' || $type eq 'tag') {
my ($msg_fh, $ctx) = command_output_pipe('cat-file',
$type, $treeish);
my $in_msg = 0;
my $author;
my $saw_from = 0;
my $msgbuf = "";
while (<$msg_fh>) {
if (!$in_msg) {
$in_msg = 1 if (/^\s*$/);
$author = $1 if (/^author (.*>)/);
} elsif (/^git-svn-id: /) {
# skip this for now, we regenerate the
# correct one on re-fetch anyways
# TODO: set *:merge properties or like...
} else {
if (/^From:/ || /^Signed-off-by:/) {
$saw_from = 1;
}
$msgbuf .= $_;
}
}
$msgbuf =~ s/\s+$//s;
if ($Git::SVN::_add_author_from && defined($author)
&& !$saw_from) {
$msgbuf .= "\n\nFrom: $author";
}
print $log_fh $msgbuf or croak $!;
command_close_pipe($msg_fh, $ctx);
}
close $log_fh or croak $!;
if ($_edit || ($type eq 'tree')) {
chomp(my $editor = command_oneline(qw(var GIT_EDITOR)));
system('sh', '-c', $editor.' "$@"', $editor, $commit_editmsg);
}
rename $commit_editmsg, $commit_msg or croak $!;
{
require Encode;
# SVN requires messages to be UTF-8 when entering the repo
local $/;
open $log_fh, '<', $commit_msg or croak $!;
binmode $log_fh;
chomp($log_entry{log} = <$log_fh>);
my $enc = Git::config('i18n.commitencoding') || 'UTF-8';
my $msg = $log_entry{log};
eval { $msg = Encode::decode($enc, $msg, 1) };
if ($@) {
die "Could not decode as $enc:\n", $msg,
"\nPerhaps you need to set i18n.commitencoding\n";
}
eval { $msg = Encode::encode('UTF-8', $msg, 1) };
die "Could not encode as UTF-8:\n$msg\n" if $@;
$log_entry{log} = $msg;
close $log_fh or croak $!;
}
unlink $commit_msg;
\%log_entry;
}
sub s_to_file {
my ($str, $file, $mode) = @_;
open my $fd,'>',$file or croak $!;
print $fd $str,"\n" or croak $!;
close $fd or croak $!;
chmod ($mode &~ umask, $file) if (defined $mode);
}
sub file_to_s {
my $file = shift;
open my $fd,'<',$file or croak "$!: file: $file\n";
local $/;
my $ret = <$fd>;
close $fd or croak $!;
$ret =~ s/\s*$//s;
return $ret;
}
# '<svn username> = real-name <email address>' mapping based on git-svnimport:
sub load_authors {
open my $authors, '<', $_authors or die "Can't open $_authors $!\n";
my $log = $cmd eq 'log';
while (<$authors>) {
chomp;
next unless /^(.+?|\(no author\))\s*=\s*(.+?)\s*<(.+)>\s*$/;
my ($user, $name, $email) = ($1, $2, $3);
if ($log) {
$Git::SVN::Log::rusers{"$name <$email>"} = $user;
} else {
$users{$user} = [$name, $email];
}
}
close $authors or croak $!;
}
# convert GetOpt::Long specs for use by git-config
sub read_git_config {
my $opts = shift;
my @config_only;
foreach my $o (keys %$opts) {
# if we have mixedCase and a long option-only, then
# it's a config-only variable that we don't need for
# the command-line.
push @config_only, $o if ($o =~ /[A-Z]/ && $o =~ /^[a-z]+$/i);
my $v = $opts->{$o};
my ($key) = ($o =~ /^([a-zA-Z\-]+)/);
$key =~ s/-//g;
my $arg = 'git config';
$arg .= ' --int' if ($o =~ /[:=]i$/);
$arg .= ' --bool' if ($o !~ /[:=][sfi]$/);
if (ref $v eq 'ARRAY') {
chomp(my @tmp = `$arg --get-all svn.$key`);
@$v = @tmp if @tmp;
} else {
chomp(my $tmp = `$arg --get svn.$key`);
if ($tmp && !($arg =~ / --bool/ && $tmp eq 'false')) {
$$v = $tmp;
}
}
}
delete @$opts{@config_only} if @config_only;
}
sub extract_metadata {
my $id = shift or return (undef, undef, undef);
my ($url, $rev, $uuid) = ($id =~ /^\s*git-svn-id:\s+(.*)\@(\d+)
\s([a-f\d\-]+)$/ix);
if (!defined $rev || !$uuid || !$url) {
# some of the original repositories I made had
# identifiers like this:
($rev, $uuid) = ($id =~/^\s*git-svn-id:\s(\d+)\@([a-f\d\-]+)/i);
}
return ($url, $rev, $uuid);
}
sub cmt_metadata {
return extract_metadata((grep(/^git-svn-id: /,
command(qw/cat-file commit/, shift)))[-1]);
}
sub cmt_sha2rev_batch {
my %s2r;
my ($pid, $in, $out, $ctx) = command_bidi_pipe(qw/cat-file --batch/);
my $list = shift;
foreach my $sha (@{$list}) {
my $first = 1;
my $size = 0;
print $out $sha, "\n";
while (my $line = <$in>) {
if ($first && $line =~ /^[[:xdigit:]]{40}\smissing$/) {
last;
} elsif ($first &&
$line =~ /^[[:xdigit:]]{40}\scommit\s(\d+)$/) {
$first = 0;
$size = $1;
next;
} elsif ($line =~ /^(git-svn-id: )/) {
my (undef, $rev, undef) =
extract_metadata($line);
$s2r{$sha} = $rev;
}
$size -= length($line);
last if ($size == 0);
}
}
command_close_bidi_pipe($pid, $in, $out, $ctx);
return \%s2r;
}
sub working_head_info {
my ($head, $refs) = @_;
my @args = ('log', '--no-color', '--first-parent', '--pretty=medium');
my ($fh, $ctx) = command_output_pipe(@args, $head);
my $hash;
my %max;
while (<$fh>) {
if ( m{^commit ($::sha1)$} ) {
unshift @$refs, $hash if $hash and $refs;
$hash = $1;
next;
}
next unless s{^\s*(git-svn-id:)}{$1};
my ($url, $rev, $uuid) = extract_metadata($_);
if (defined $url && defined $rev) {
next if $max{$url} and $max{$url} < $rev;
if (my $gs = Git::SVN->find_by_url($url)) {
my $c = $gs->rev_map_get($rev, $uuid);
if ($c && $c eq $hash) {
close $fh; # break the pipe
return ($url, $rev, $uuid, $gs);
} else {
$max{$url} ||= $gs->rev_map_max;
}
}
}
}
command_close_pipe($fh, $ctx);
(undef, undef, undef, undef);
}
sub read_commit_parents {
my ($parents, $c) = @_;
chomp(my $p = command_oneline(qw/rev-list --parents -1/, $c));
$p =~ s/^($c)\s*// or die "rev-list --parents -1 $c failed!\n";
@{$parents->{$c}} = split(/ /, $p);
}
sub linearize_history {
my ($gs, $refs) = @_;
my %parents;
foreach my $c (@$refs) {
read_commit_parents(\%parents, $c);
}
my @linear_refs;
my %skip = ();
my $last_svn_commit = $gs->last_commit;
foreach my $c (reverse @$refs) {
next if $c eq $last_svn_commit;
last if $skip{$c};
unshift @linear_refs, $c;
$skip{$c} = 1;
# we only want the first parent to diff against for linear
# history, we save the rest to inject when we finalize the
# svn commit
my $fp_a = verify_ref("$c~1");
my $fp_b = shift @{$parents{$c}} if $parents{$c};
if (!$fp_a || !$fp_b) {
die "Commit $c\n",
"has no parent commit, and therefore ",
"nothing to diff against.\n",
"You should be working from a repository ",
"originally created by git-svn\n";
}
if ($fp_a ne $fp_b) {
die "$c~1 = $fp_a, however parsing commit $c ",
"revealed that:\n$c~1 = $fp_b\nBUG!\n";
}
foreach my $p (@{$parents{$c}}) {
$skip{$p} = 1;
}
}
(\@linear_refs, \%parents);
}
sub find_file_type_and_diff_status {
my ($path) = @_;
return ('dir', '') if $path eq '';
my $diff_output =
command_oneline(qw(diff --cached --name-status --), $path) || "";
my $diff_status = (split(' ', $diff_output))[0] || "";
my $ls_tree = command_oneline(qw(ls-tree HEAD), $path) || "";
return (undef, undef) if !$diff_status && !$ls_tree;
if ($diff_status eq "A") {
return ("link", $diff_status) if -l $path;
return ("dir", $diff_status) if -d $path;
return ("file", $diff_status);
}
my $mode = (split(' ', $ls_tree))[0] || "";
return ("link", $diff_status) if $mode eq "120000";
return ("dir", $diff_status) if $mode eq "040000";
return ("file", $diff_status);
}
sub md5sum {
my $arg = shift;
my $ref = ref $arg;
my $md5 = Digest::MD5->new();
if ($ref eq 'GLOB' || $ref eq 'IO::File' || $ref eq 'File::Temp') {
$md5->addfile($arg) or croak $!;
} elsif ($ref eq 'SCALAR') {
$md5->add($$arg) or croak $!;
} elsif (!$ref) {
$md5->add($arg) or croak $!;
} else {
::fatal "Can't provide MD5 hash for unknown ref type: '", $ref, "'";
}
return $md5->hexdigest();
}
sub gc_directory {
if ($can_compress && -f $_ && basename($_) eq "unhandled.log") {
my $out_filename = $_ . ".gz";
open my $in_fh, "<", $_ or die "Unable to open $_: $!\n";
binmode $in_fh;
my $gz = Compress::Zlib::gzopen($out_filename, "ab") or
die "Unable to open $out_filename: $!\n";
my $res;
while ($res = sysread($in_fh, my $str, 1024)) {
$gz->gzwrite($str) or
die "Unable to write: ".$gz->gzerror()."!\n";
}
unlink $_ or die "unlink $File::Find::name: $!\n";
} elsif (-f $_ && basename($_) eq "index") {
unlink $_ or die "unlink $_: $!\n";
}
}
package Git::SVN;
use strict;
use warnings;
use Fcntl qw/:DEFAULT :seek/;
use constant rev_map_fmt => 'NH40';
use vars qw/$default_repo_id $default_ref_id $_no_metadata $_follow_parent
$_repack $_repack_flags $_use_svm_props $_head
$_use_svnsync_props $no_reuse_existing $_minimize_url
$_use_log_author $_add_author_from $_localtime/;
use Carp qw/croak/;
use File::Path qw/mkpath/;
use File::Copy qw/copy/;
use IPC::Open3;
use Memoize; # core since 5.8.0, Jul 2002
use Memoize::Storable;
my ($_gc_nr, $_gc_period);
# properties that we do not log:
my %SKIP_PROP;
BEGIN {
%SKIP_PROP = map { $_ => 1 } qw/svn:wc:ra_dav:version-url
svn:special svn:executable
svn:entry:committed-rev
svn:entry:last-author
svn:entry:uuid
svn:entry:committed-date/;
# some options are read globally, but can be overridden locally
# per [svn-remote "..."] section. Command-line options will *NOT*
# override options set in an [svn-remote "..."] section
no strict 'refs';
for my $option (qw/follow_parent no_metadata use_svm_props
use_svnsync_props/) {
my $key = $option;
$key =~ tr/_//d;
my $prop = "-$option";
*$option = sub {
my ($self) = @_;
return $self->{$prop} if exists $self->{$prop};
my $k = "svn-remote.$self->{repo_id}.$key";
eval { command_oneline(qw/config --get/, $k) };
if ($@) {
$self->{$prop} = ${"Git::SVN::_$option"};
} else {
my $v = command_oneline(qw/config --bool/,$k);
$self->{$prop} = $v eq 'false' ? 0 : 1;
}
return $self->{$prop};
}
}
}
my (%LOCKFILES, %INDEX_FILES);
END {
unlink keys %LOCKFILES if %LOCKFILES;
unlink keys %INDEX_FILES if %INDEX_FILES;
}
sub resolve_local_globs {
my ($url, $fetch, $glob_spec) = @_;
return unless defined $glob_spec;
my $ref = $glob_spec->{ref};
my $path = $glob_spec->{path};
foreach (command(qw#for-each-ref --format=%(refname) refs/#)) {
next unless m#^$ref->{regex}$#;
my $p = $1;
my $pathname = desanitize_refname($path->full_path($p));
my $refname = desanitize_refname($ref->full_path($p));
if (my $existing = $fetch->{$pathname}) {
if ($existing ne $refname) {
die "Refspec conflict:\n",
"existing: $existing\n",
" globbed: $refname\n";
}
my $u = (::cmt_metadata("$refname"))[0];
$u =~ s!^\Q$url\E(/|$)!! or die
"$refname: '$url' not found in '$u'\n";
if ($pathname ne $u) {
warn "W: Refspec glob conflict ",
"(ref: $refname):\n",
"expected path: $pathname\n",
" real path: $u\n",
"Continuing ahead with $u\n";
next;
}
} else {
$fetch->{$pathname} = $refname;
}
}
}
sub parse_revision_argument {
my ($base, $head) = @_;
if (!defined $::_revision || $::_revision eq 'BASE:HEAD') {
return ($base, $head);
}
return ($1, $2) if ($::_revision =~ /^(\d+):(\d+)$/);
return ($::_revision, $::_revision) if ($::_revision =~ /^\d+$/);
return ($head, $head) if ($::_revision eq 'HEAD');
return ($base, $1) if ($::_revision =~ /^BASE:(\d+)$/);
return ($1, $head) if ($::_revision =~ /^(\d+):HEAD$/);
die "revision argument: $::_revision not understood by git-svn\n";
}
sub fetch_all {
my ($repo_id, $remotes) = @_;
if (ref $repo_id) {
my $gs = $repo_id;
$repo_id = undef;
$repo_id = $gs->{repo_id};
}
$remotes ||= read_all_remotes();
my $remote = $remotes->{$repo_id} or
die "[svn-remote \"$repo_id\"] unknown\n";
my $fetch = $remote->{fetch};
my $url = $remote->{url} or die "svn-remote.$repo_id.url not defined\n";
my (@gs, @globs);
my $ra = Git::SVN::Ra->new($url);
my $uuid = $ra->get_uuid;
my $head = $ra->get_latest_revnum;
# ignore errors, $head revision may not even exist anymore
eval { $ra->get_log("", $head, 0, 1, 0, 1, sub { $head = $_[1] }) };
warn "W: $@\n" if $@;
my $base = defined $fetch ? $head : 0;
# read the max revs for wildcard expansion (branches/*, tags/*)
foreach my $t (qw/branches tags/) {
defined $remote->{$t} or next;
push @globs, @{$remote->{$t}};
my $max_rev = eval { tmp_config(qw/--int --get/,
"svn-remote.$repo_id.${t}-maxRev") };
if (defined $max_rev && ($max_rev < $base)) {
$base = $max_rev;
} elsif (!defined $max_rev) {
$base = 0;
}
}
if ($fetch) {
foreach my $p (sort keys %$fetch) {
my $gs = Git::SVN->new($fetch->{$p}, $repo_id, $p);
my $lr = $gs->rev_map_max;
if (defined $lr) {
$base = $lr if ($lr < $base);
}
push @gs, $gs;
}
}
($base, $head) = parse_revision_argument($base, $head);
$ra->gs_fetch_loop_common($base, $head, \@gs, \@globs);
}
sub read_all_remotes {
my $r = {};
my $use_svm_props = eval { command_oneline(qw/config --bool
svn.useSvmProps/) };
$use_svm_props = $use_svm_props eq 'true' if $use_svm_props;
my $svn_refspec = qr{\s*(.*?)\s*:\s*(.+?)\s*};
foreach (grep { s/^svn-remote\.// } command(qw/config -l/)) {
if (m!^(.+)\.fetch=$svn_refspec$!) {
my ($remote, $local_ref, $remote_ref) = ($1, $2, $3);
die("svn-remote.$remote: remote ref '$remote_ref' "
. "must start with 'refs/'\n")
unless $remote_ref =~ m{^refs/};
$r->{$remote}->{fetch}->{$local_ref} = $remote_ref;
$r->{$remote}->{svm} = {} if $use_svm_props;
} elsif (m!^(.+)\.usesvmprops=\s*(.*)\s*$!) {
$r->{$1}->{svm} = {};
} elsif (m!^(.+)\.url=\s*(.*)\s*$!) {
$r->{$1}->{url} = $2;
} elsif (m!^(.+)\.(branches|tags)=$svn_refspec$!) {
my ($remote, $t, $local_ref, $remote_ref) =
($1, $2, $3, $4);
die("svn-remote.$remote: remote ref '$remote_ref' ($t) "
. "must start with 'refs/'\n")
unless $remote_ref =~ m{^refs/};
my $rs = {
t => $t,
remote => $remote,
path => Git::SVN::GlobSpec->new($local_ref, 1),
ref => Git::SVN::GlobSpec->new($remote_ref, 0) };
if (length($rs->{ref}->{right}) != 0) {
die "The '*' glob character must be the last ",
"character of '$remote_ref'\n";
}
push @{ $r->{$remote}->{$t} }, $rs;
}
}
map {
if (defined $r->{$_}->{svm}) {
my $svm;
eval {
my $section = "svn-remote.$_";
$svm = {
source => tmp_config('--get',
"$section.svm-source"),
replace => tmp_config('--get',
"$section.svm-replace"),
}
};
$r->{$_}->{svm} = $svm;
}
} keys %$r;
$r;
}
sub init_vars {
$_gc_nr = $_gc_period = 1000;
if (defined $_repack || defined $_repack_flags) {
warn "Repack options are obsolete; they have no effect.\n";
}
}
sub verify_remotes_sanity {
return unless -d $ENV{GIT_DIR};
my %seen;
foreach (command(qw/config -l/)) {
if (m!^svn-remote\.(?:.+)\.fetch=.*:refs/remotes/(\S+)\s*$!) {
if ($seen{$1}) {
die "Remote ref refs/remote/$1 is tracked by",
"\n \"$_\"\nand\n \"$seen{$1}\"\n",
"Please resolve this ambiguity in ",
"your git configuration file before ",
"continuing\n";
}
$seen{$1} = $_;
}
}
}
sub find_existing_remote {
my ($url, $remotes) = @_;
return undef if $no_reuse_existing;
my $existing;
foreach my $repo_id (keys %$remotes) {
my $u = $remotes->{$repo_id}->{url} or next;
next if $u ne $url;
$existing = $repo_id;
last;
}
$existing;
}
sub init_remote_config {
my ($self, $url, $no_write) = @_;
$url =~ s!/+$!!; # strip trailing slash
my $r = read_all_remotes();
my $existing = find_existing_remote($url, $r);
if ($existing) {
unless ($no_write) {
print STDERR "Using existing ",
"[svn-remote \"$existing\"]\n";
}
$self->{repo_id} = $existing;
} elsif ($_minimize_url) {
my $min_url = Git::SVN::Ra->new($url)->minimize_url;
$existing = find_existing_remote($min_url, $r);
if ($existing) {
unless ($no_write) {
print STDERR "Using existing ",
"[svn-remote \"$existing\"]\n";
}
$self->{repo_id} = $existing;
}
if ($min_url ne $url) {
unless ($no_write) {
print STDERR "Using higher level of URL: ",
"$url => $min_url\n";
}
my $old_path = $self->{path};
$self->{path} = $url;
$self->{path} =~ s!^\Q$min_url\E(/|$)!!;
if (length $old_path) {
$self->{path} .= "/$old_path";
}
$url = $min_url;
}
}
my $orig_url;
if (!$existing) {
# verify that we aren't overwriting anything:
$orig_url = eval {
command_oneline('config', '--get',
"svn-remote.$self->{repo_id}.url")
};
if ($orig_url && ($orig_url ne $url)) {
die "svn-remote.$self->{repo_id}.url already set: ",
"$orig_url\nwanted to set to: $url\n";
}
}
my ($xrepo_id, $xpath) = find_ref($self->refname);
if (!$no_write && defined $xpath) {
die "svn-remote.$xrepo_id.fetch already set to track ",
"$xpath:", $self->refname, "\n";
}
unless ($no_write) {
command_noisy('config',
"svn-remote.$self->{repo_id}.url", $url);
$self->{path} =~ s{^/}{};
$self->{path} =~ s{%([0-9A-F]{2})}{chr hex($1)}ieg;
command_noisy('config', '--add',
"svn-remote.$self->{repo_id}.fetch",
"$self->{path}:".$self->refname);
}
$self->{url} = $url;
}
sub find_by_url { # repos_root and, path are optional
my ($class, $full_url, $repos_root, $path) = @_;
return undef unless defined $full_url;
remove_username($full_url);
remove_username($repos_root) if defined $repos_root;
my $remotes = read_all_remotes();
if (defined $full_url && defined $repos_root && !defined $path) {
$path = $full_url;
$path =~ s#^\Q$repos_root\E(?:/|$)##;
}
foreach my $repo_id (keys %$remotes) {
my $u = $remotes->{$repo_id}->{url} or next;
remove_username($u);
next if defined $repos_root && $repos_root ne $u;
my $fetch = $remotes->{$repo_id}->{fetch} || {};
foreach my $t (qw/branches tags/) {
foreach my $globspec (@{$remotes->{$repo_id}->{$t}}) {
resolve_local_globs($u, $fetch, $globspec);
}
}
my $p = $path;
my $rwr = rewrite_root({repo_id => $repo_id});
my $svm = $remotes->{$repo_id}->{svm}
if defined $remotes->{$repo_id}->{svm};
unless (defined $p) {
$p = $full_url;
my $z = $u;
my $prefix = '';
if ($rwr) {
$z = $rwr;
remove_username($z);
} elsif (defined $svm) {
$z = $svm->{source};
$prefix = $svm->{replace};
$prefix =~ s#^\Q$u\E(?:/|$)##;
$prefix =~ s#/$##;
}
$p =~ s#^\Q$z\E(?:/|$)#$prefix# or next;
}
foreach my $f (keys %$fetch) {
next if $f ne $p;
return Git::SVN->new($fetch->{$f}, $repo_id, $f);
}
}
undef;
}
sub init {
my ($class, $url, $path, $repo_id, $ref_id, $no_write) = @_;
my $self = _new($class, $repo_id, $ref_id, $path);
if (defined $url) {
$self->init_remote_config($url, $no_write);
}
$self;
}
sub find_ref {
my ($ref_id) = @_;
foreach (command(qw/config -l/)) {
next unless m!^svn-remote\.(.+)\.fetch=
\s*(.*?)\s*:\s*(.+?)\s*$!x;
my ($repo_id, $path, $ref) = ($1, $2, $3);
if ($ref eq $ref_id) {
$path = '' if ($path =~ m#^\./?#);
return ($repo_id, $path);
}
}
(undef, undef, undef);
}
sub new {
my ($class, $ref_id, $repo_id, $path) = @_;
if (defined $ref_id && !defined $repo_id && !defined $path) {
($repo_id, $path) = find_ref($ref_id);
if (!defined $repo_id) {
die "Could not find a \"svn-remote.*.fetch\" key ",
"in the repository configuration matching: ",
"$ref_id\n";
}
}
my $self = _new($class, $repo_id, $ref_id, $path);
if (!defined $self->{path} || !length $self->{path}) {
my $fetch = command_oneline('config', '--get',
"svn-remote.$repo_id.fetch",
":$ref_id\$") or
die "Failed to read \"svn-remote.$repo_id.fetch\" ",
"\":$ref_id\$\" in config\n";
($self->{path}, undef) = split(/\s*:\s*/, $fetch);
}
$self->{path} =~ s{/+}{/}g;
$self->{path} =~ s{\A/}{};
$self->{path} =~ s{/\z}{};
$self->{url} = command_oneline('config', '--get',
"svn-remote.$repo_id.url") or
die "Failed to read \"svn-remote.$repo_id.url\" in config\n";
$self->rebuild;
$self;
}
sub refname {
my ($refname) = $_[0]->{ref_id} ;
# It cannot end with a slash /, we'll throw up on this because
# SVN can't have directories with a slash in their name, either:
if ($refname =~ m{/$}) {
die "ref: '$refname' ends with a trailing slash, this is ",
"not permitted by git nor Subversion\n";
}
# It cannot have ASCII control character space, tilde ~, caret ^,
# colon :, question-mark ?, asterisk *, space, or open bracket [
# anywhere.
#
# Additionally, % must be escaped because it is used for escaping
# and we want our escaped refname to be reversible
$refname =~ s{([ \%~\^:\?\*\[\t])}{uc sprintf('%%%02x',ord($1))}eg;
# no slash-separated component can begin with a dot .
# /.* becomes /%2E*
$refname =~ s{/\.}{/%2E}g;
# It cannot have two consecutive dots .. anywhere
# .. becomes %2E%2E
$refname =~ s{\.\.}{%2E%2E}g;
# trailing dots and .lock are not allowed
# .$ becomes %2E and .lock becomes %2Elock
$refname =~ s{\.(?=$|lock$)}{%2E};
# the sequence @{ is used to access the reflog
# @{ becomes %40{
$refname =~ s{\@\{}{%40\{}g;
return $refname;
}
sub desanitize_refname {
my ($refname) = @_;
$refname =~ s{%(?:([0-9A-F]{2}))}{chr hex($1)}eg;
return $refname;
}
sub svm_uuid {
my ($self) = @_;
return $self->{svm}->{uuid} if $self->svm;
$self->ra;
unless ($self->{svm}) {
die "SVM UUID not cached, and reading remotely failed\n";
}
$self->{svm}->{uuid};
}
sub svm {
my ($self) = @_;
return $self->{svm} if $self->{svm};
my $svm;
# see if we have it in our config, first:
eval {
my $section = "svn-remote.$self->{repo_id}";
$svm = {
source => tmp_config('--get', "$section.svm-source"),
uuid => tmp_config('--get', "$section.svm-uuid"),
replace => tmp_config('--get', "$section.svm-replace"),
}
};
if ($svm && $svm->{source} && $svm->{uuid} && $svm->{replace}) {
$self->{svm} = $svm;
}
$self->{svm};
}
sub _set_svm_vars {
my ($self, $ra) = @_;
return $ra if $self->svm;
my @err = ( "useSvmProps set, but failed to read SVM properties\n",
"(svm:source, svm:uuid) ",
"from the following URLs:\n" );
sub read_svm_props {
my ($self, $ra, $path, $r) = @_;
my $props = ($ra->get_dir($path, $r))[2];
my $src = $props->{'svm:source'};
my $uuid = $props->{'svm:uuid'};
return undef if (!$src || !$uuid);
chomp($src, $uuid);
$uuid =~ m{^[0-9a-f\-]{30,}$}i
or die "doesn't look right - svm:uuid is '$uuid'\n";
# the '!' is used to mark the repos_root!/relative/path
$src =~ s{/?!/?}{/};
$src =~ s{/+$}{}; # no trailing slashes please
# username is of no interest
$src =~ s{(^[a-z\+]*://)[^/@]*@}{$1};
my $replace = $ra->{url};
$replace .= "/$path" if length $path;
my $section = "svn-remote.$self->{repo_id}";
tmp_config("$section.svm-source", $src);
tmp_config("$section.svm-replace", $replace);
tmp_config("$section.svm-uuid", $uuid);
$self->{svm} = {
source => $src,
uuid => $uuid,
replace => $replace
};
}
my $r = $ra->get_latest_revnum;
my $path = $self->{path};
my %tried;
while (length $path) {
unless ($tried{"$self->{url}/$path"}) {
return $ra if $self->read_svm_props($ra, $path, $r);
$tried{"$self->{url}/$path"} = 1;
}
$path =~ s#/?[^/]+$##;
}
die "Path: '$path' should be ''\n" if $path ne '';
return $ra if $self->read_svm_props($ra, $path, $r);
$tried{"$self->{url}/$path"} = 1;
if ($ra->{repos_root} eq $self->{url}) {
die @err, (map { " $_\n" } keys %tried), "\n";
}
# nope, make sure we're connected to the repository root:
my $ok;
my @tried_b;
$path = $ra->{svn_path};
$ra = Git::SVN::Ra->new($ra->{repos_root});
while (length $path) {
unless ($tried{"$ra->{url}/$path"}) {
$ok = $self->read_svm_props($ra, $path, $r);
last if $ok;
$tried{"$ra->{url}/$path"} = 1;
}
$path =~ s#/?[^/]+$##;
}
die "Path: '$path' should be ''\n" if $path ne '';
$ok ||= $self->read_svm_props($ra, $path, $r);
$tried{"$ra->{url}/$path"} = 1;
if (!$ok) {
die @err, (map { " $_\n" } keys %tried), "\n";
}
Git::SVN::Ra->new($self->{url});
}
sub svnsync {
my ($self) = @_;
return $self->{svnsync} if $self->{svnsync};
if ($self->no_metadata) {
die "Can't have both 'noMetadata' and ",
"'useSvnsyncProps' options set!\n";
}
if ($self->rewrite_root) {
die "Can't have both 'useSvnsyncProps' and 'rewriteRoot' ",
"options set!\n";
}
if ($self->rewrite_uuid) {
die "Can't have both 'useSvnsyncProps' and 'rewriteUUID' ",
"options set!\n";
}
my $svnsync;
# see if we have it in our config, first:
eval {
my $section = "svn-remote.$self->{repo_id}";
my $url = tmp_config('--get', "$section.svnsync-url");
($url) = ($url =~ m{^([a-z\+]+://\S+)$}) or
die "doesn't look right - svn:sync-from-url is '$url'\n";
my $uuid = tmp_config('--get', "$section.svnsync-uuid");
($uuid) = ($uuid =~ m{^([0-9a-f\-]{30,})$}i) or
die "doesn't look right - svn:sync-from-uuid is '$uuid'\n";
$svnsync = { url => $url, uuid => $uuid }
};
if ($svnsync && $svnsync->{url} && $svnsync->{uuid}) {
return $self->{svnsync} = $svnsync;
}
my $err = "useSvnsyncProps set, but failed to read " .
"svnsync property: svn:sync-from-";
my $rp = $self->ra->rev_proplist(0);
my $url = $rp->{'svn:sync-from-url'} or die $err . "url\n";
($url) = ($url =~ m{^([a-z\+]+://\S+)$}) or
die "doesn't look right - svn:sync-from-url is '$url'\n";
my $uuid = $rp->{'svn:sync-from-uuid'} or die $err . "uuid\n";
($uuid) = ($uuid =~ m{^([0-9a-f\-]{30,})$}i) or
die "doesn't look right - svn:sync-from-uuid is '$uuid'\n";
my $section = "svn-remote.$self->{repo_id}";
tmp_config('--add', "$section.svnsync-uuid", $uuid);
tmp_config('--add', "$section.svnsync-url", $url);
return $self->{svnsync} = { url => $url, uuid => $uuid };
}
# this allows us to memoize our SVN::Ra UUID locally and avoid a
# remote lookup (useful for 'git svn log').
sub ra_uuid {
my ($self) = @_;
unless ($self->{ra_uuid}) {
my $key = "svn-remote.$self->{repo_id}.uuid";
my $uuid = eval { tmp_config('--get', $key) };
if (!$@ && $uuid && $uuid =~ /^([a-f\d\-]{30,})$/i) {
$self->{ra_uuid} = $uuid;
} else {
die "ra_uuid called without URL\n" unless $self->{url};
$self->{ra_uuid} = $self->ra->get_uuid;
tmp_config('--add', $key, $self->{ra_uuid});
}
}
$self->{ra_uuid};
}
sub _set_repos_root {
my ($self, $repos_root) = @_;
my $k = "svn-remote.$self->{repo_id}.reposRoot";
$repos_root ||= $self->ra->{repos_root};
tmp_config($k, $repos_root);
$repos_root;
}
sub repos_root {
my ($self) = @_;
my $k = "svn-remote.$self->{repo_id}.reposRoot";
eval { tmp_config('--get', $k) } || $self->_set_repos_root;
}
sub ra {
my ($self) = shift;
my $ra = Git::SVN::Ra->new($self->{url});
$self->_set_repos_root($ra->{repos_root});
if ($self->use_svm_props && !$self->{svm}) {
if ($self->no_metadata) {
die "Can't have both 'noMetadata' and ",
"'useSvmProps' options set!\n";
} elsif ($self->use_svnsync_props) {
die "Can't have both 'useSvnsyncProps' and ",
"'useSvmProps' options set!\n";
}
$ra = $self->_set_svm_vars($ra);
$self->{-want_revprops} = 1;
}
$ra;
}
# prop_walk(PATH, REV, SUB)
# -------------------------
# Recursively traverse PATH at revision REV and invoke SUB for each
# directory that contains a SVN property. SUB will be invoked as
# follows: &SUB(gs, path, props); where `gs' is this instance of
# Git::SVN, `path' the path to the directory where the properties
# `props' were found. The `path' will be relative to point of checkout,
# that is, if url://repo/trunk is the current Git branch, and that
# directory contains a sub-directory `d', SUB will be invoked with `/d/'
# as `path' (note the trailing `/').
sub prop_walk {
my ($self, $path, $rev, $sub) = @_;
$path =~ s#^/##;
my ($dirent, undef, $props) = $self->ra->get_dir($path, $rev);
$path =~ s#^/*#/#g;
my $p = $path;
# Strip the irrelevant part of the path.
$p =~ s#^/+\Q$self->{path}\E(/|$)#/#;
# Ensure the path is terminated by a `/'.
$p =~ s#/*$#/#;
# The properties contain all the internal SVN stuff nobody
# (usually) cares about.
my $interesting_props = 0;
foreach (keys %{$props}) {
# If it doesn't start with `svn:', it must be a
# user-defined property.
++$interesting_props and next if $_ !~ /^svn:/;
# FIXME: Fragile, if SVN adds new public properties,
# this needs to be updated.
++$interesting_props if /^svn:(?:ignore|keywords|executable
|eol-style|mime-type
|externals|needs-lock)$/x;
}
&$sub($self, $p, $props) if $interesting_props;
foreach (sort keys %$dirent) {
next if $dirent->{$_}->{kind} != $SVN::Node::dir;
$self->prop_walk($self->{path} . $p . $_, $rev, $sub);
}
}
sub last_rev { ($_[0]->last_rev_commit)[0] }
sub last_commit { ($_[0]->last_rev_commit)[1] }
# returns the newest SVN revision number and newest commit SHA1
sub last_rev_commit {
my ($self) = @_;
if (defined $self->{last_rev} && defined $self->{last_commit}) {
return ($self->{last_rev}, $self->{last_commit});
}
my $c = ::verify_ref($self->refname.'^0');
if ($c && !$self->use_svm_props && !$self->no_metadata) {
my $rev = (::cmt_metadata($c))[1];
if (defined $rev) {
($self->{last_rev}, $self->{last_commit}) = ($rev, $c);
return ($rev, $c);
}
}
my $map_path = $self->map_path;
unless (-e $map_path) {
($self->{last_rev}, $self->{last_commit}) = (undef, undef);
return (undef, undef);
}
my ($rev, $commit) = $self->rev_map_max(1);
($self->{last_rev}, $self->{last_commit}) = ($rev, $commit);
return ($rev, $commit);
}
sub get_fetch_range {
my ($self, $min, $max) = @_;
$max ||= $self->ra->get_latest_revnum;
$min ||= $self->rev_map_max;
(++$min, $max);
}
sub tmp_config {
my (@args) = @_;
my $old_def_config = "$ENV{GIT_DIR}/svn/config";
my $config = "$ENV{GIT_DIR}/svn/.metadata";
if (! -f $config && -f $old_def_config) {
rename $old_def_config, $config or
die "Failed rename $old_def_config => $config: $!\n";
}
my $old_config = $ENV{GIT_CONFIG};
$ENV{GIT_CONFIG} = $config;
$@ = undef;
my @ret = eval {
unless (-f $config) {
mkfile($config);
open my $fh, '>', $config or
die "Can't open $config: $!\n";
print $fh "; This file is used internally by ",
"git-svn\n" or die
"Couldn't write to $config: $!\n";
print $fh "; You should not have to edit it\n" or
die "Couldn't write to $config: $!\n";
close $fh or die "Couldn't close $config: $!\n";
}
command('config', @args);
};
my $err = $@;
if (defined $old_config) {
$ENV{GIT_CONFIG} = $old_config;
} else {
delete $ENV{GIT_CONFIG};
}
die $err if $err;
wantarray ? @ret : $ret[0];
}
sub tmp_index_do {
my ($self, $sub) = @_;
my $old_index = $ENV{GIT_INDEX_FILE};
$ENV{GIT_INDEX_FILE} = $self->{index};
$@ = undef;
my @ret = eval {
my ($dir, $base) = ($self->{index} =~ m#^(.*?)/?([^/]+)$#);
mkpath([$dir]) unless -d $dir;
&$sub;
};
my $err = $@;
if (defined $old_index) {
$ENV{GIT_INDEX_FILE} = $old_index;
} else {
delete $ENV{GIT_INDEX_FILE};
}
die $err if $err;
wantarray ? @ret : $ret[0];
}
sub assert_index_clean {
my ($self, $treeish) = @_;
$self->tmp_index_do(sub {
command_noisy('read-tree', $treeish) unless -e $self->{index};
my $x = command_oneline('write-tree');
my ($y) = (command(qw/cat-file commit/, $treeish) =~
/^tree ($::sha1)/mo);
return if $y eq $x;
warn "Index mismatch: $y != $x\nrereading $treeish\n";
unlink $self->{index} or die "unlink $self->{index}: $!\n";
command_noisy('read-tree', $treeish);
$x = command_oneline('write-tree');
if ($y ne $x) {
::fatal "trees ($treeish) $y != $x\n",
"Something is seriously wrong...";
}
});
}
sub get_commit_parents {
my ($self, $log_entry) = @_;
my (%seen, @ret, @tmp);
# legacy support for 'set-tree'; this is only used by set_tree_cb:
if (my $ip = $self->{inject_parents}) {
if (my $commit = delete $ip->{$log_entry->{revision}}) {
push @tmp, $commit;
}
}
if (my $cur = ::verify_ref($self->refname.'^0')) {
push @tmp, $cur;
}
if (my $ipd = $self->{inject_parents_dcommit}) {
if (my $commit = delete $ipd->{$log_entry->{revision}}) {
push @tmp, @$commit;
}
}
push @tmp, $_ foreach (@{$log_entry->{parents}}, @tmp);
while (my $p = shift @tmp) {
next if $seen{$p};
$seen{$p} = 1;
push @ret, $p;
}
@ret;
}
sub rewrite_root {
my ($self) = @_;
return $self->{-rewrite_root} if exists $self->{-rewrite_root};
my $k = "svn-remote.$self->{repo_id}.rewriteRoot";
my $rwr = eval { command_oneline(qw/config --get/, $k) };
if ($rwr) {
$rwr =~ s#/+$##;
if ($rwr !~ m#^[a-z\+]+://#) {
die "$rwr is not a valid URL (key: $k)\n";
}
}
$self->{-rewrite_root} = $rwr;
}
sub rewrite_uuid {
my ($self) = @_;
return $self->{-rewrite_uuid} if exists $self->{-rewrite_uuid};
my $k = "svn-remote.$self->{repo_id}.rewriteUUID";
my $rwid = eval { command_oneline(qw/config --get/, $k) };
if ($rwid) {
$rwid =~ s#/+$##;
if ($rwid !~ m#^[a-f0-9]{8}-(?:[a-f0-9]{4}-){3}[a-f0-9]{12}$#) {
die "$rwid is not a valid UUID (key: $k)\n";
}
}
$self->{-rewrite_uuid} = $rwid;
}
sub metadata_url {
my ($self) = @_;
($self->rewrite_root || $self->{url}) .
(length $self->{path} ? '/' . $self->{path} : '');
}
sub full_url {
my ($self) = @_;
$self->{url} . (length $self->{path} ? '/' . $self->{path} : '');
}
sub set_commit_header_env {
my ($log_entry) = @_;
my %env;
foreach my $ned (qw/NAME EMAIL DATE/) {
foreach my $ac (qw/AUTHOR COMMITTER/) {
$env{"GIT_${ac}_${ned}"} = $ENV{"GIT_${ac}_${ned}"};
}
}
$ENV{GIT_AUTHOR_NAME} = $log_entry->{name};
$ENV{GIT_AUTHOR_EMAIL} = $log_entry->{email};
$ENV{GIT_AUTHOR_DATE} = $ENV{GIT_COMMITTER_DATE} = $log_entry->{date};
$ENV{GIT_COMMITTER_NAME} = (defined $log_entry->{commit_name})
? $log_entry->{commit_name}
: $log_entry->{name};
$ENV{GIT_COMMITTER_EMAIL} = (defined $log_entry->{commit_email})
? $log_entry->{commit_email}
: $log_entry->{email};
\%env;
}
sub restore_commit_header_env {
my ($env) = @_;
foreach my $ned (qw/NAME EMAIL DATE/) {
foreach my $ac (qw/AUTHOR COMMITTER/) {
my $k = "GIT_${ac}_${ned}";
if (defined $env->{$k}) {
$ENV{$k} = $env->{$k};
} else {
delete $ENV{$k};
}
}
}
}
sub gc {
command_noisy('gc', '--auto');
};
sub do_git_commit {
my ($self, $log_entry) = @_;
my $lr = $self->last_rev;
if (defined $lr && $lr >= $log_entry->{revision}) {
die "Last fetched revision of ", $self->refname,
" was r$lr, but we are about to fetch: ",
"r$log_entry->{revision}!\n";
}
if (my $c = $self->rev_map_get($log_entry->{revision})) {
croak "$log_entry->{revision} = $c already exists! ",
"Why are we refetching it?\n";
}
my $old_env = set_commit_header_env($log_entry);
my $tree = $log_entry->{tree};
if (!defined $tree) {
$tree = $self->tmp_index_do(sub {
command_oneline('write-tree') });
}
die "Tree is not a valid sha1: $tree\n" if $tree !~ /^$::sha1$/o;
my @exec = ('git', 'commit-tree', $tree);
foreach ($self->get_commit_parents($log_entry)) {
push @exec, '-p', $_;
}
defined(my $pid = open3(my $msg_fh, my $out_fh, '>&STDERR', @exec))
or croak $!;
binmode $msg_fh;
# we always get UTF-8 from SVN, but we may want our commits in
# a different encoding.
if (my $enc = Git::config('i18n.commitencoding')) {
require Encode;
Encode::from_to($log_entry->{log}, 'UTF-8', $enc);
}
print $msg_fh $log_entry->{log} or croak $!;
restore_commit_header_env($old_env);
unless ($self->no_metadata) {
print $msg_fh "\ngit-svn-id: $log_entry->{metadata}\n"
or croak $!;
}
$msg_fh->flush == 0 or croak $!;
close $msg_fh or croak $!;
chomp(my $commit = do { local $/; <$out_fh> });
close $out_fh or croak $!;
waitpid $pid, 0;
croak $? if $?;
if ($commit !~ /^$::sha1$/o) {
die "Failed to commit, invalid sha1: $commit\n";
}
$self->rev_map_set($log_entry->{revision}, $commit, 1);
$self->{last_rev} = $log_entry->{revision};
$self->{last_commit} = $commit;
print "r$log_entry->{revision}" unless $::_q > 1;
if (defined $log_entry->{svm_revision}) {
print " (\@$log_entry->{svm_revision})" unless $::_q > 1;
$self->rev_map_set($log_entry->{svm_revision}, $commit,
0, $self->svm_uuid);
}
print " = $commit ($self->{ref_id})\n" unless $::_q > 1;
if (--$_gc_nr == 0) {
$_gc_nr = $_gc_period;
gc();
}
return $commit;
}
sub match_paths {
my ($self, $paths, $r) = @_;
return 1 if $self->{path} eq '';
if (my $path = $paths->{"/$self->{path}"}) {
return ($path->{action} eq 'D') ? 0 : 1;
}
$self->{path_regex} ||= qr/^\/\Q$self->{path}\E\//;
if (grep /$self->{path_regex}/, keys %$paths) {
return 1;
}
my $c = '';
foreach (split m#/#, $self->{path}) {
$c .= "/$_";
next unless ($paths->{$c} &&
($paths->{$c}->{action} =~ /^[AR]$/));
if ($self->ra->check_path($self->{path}, $r) ==
$SVN::Node::dir) {
return 1;
}
}
return 0;
}
sub find_parent_branch {
my ($self, $paths, $rev) = @_;
return undef unless $self->follow_parent;
unless (defined $paths) {
my $err_handler = $SVN::Error::handler;
$SVN::Error::handler = \&Git::SVN::Ra::skip_unknown_revs;
$self->ra->get_log([$self->{path}], $rev, $rev, 0, 1, 1,
sub { $paths = $_[0] });
$SVN::Error::handler = $err_handler;
}
return undef unless defined $paths;
# look for a parent from another branch:
my @b_path_components = split m#/#, $self->{path};
my @a_path_components;
my $i;
while (@b_path_components) {
$i = $paths->{'/'.join('/', @b_path_components)};
last if $i && defined $i->{copyfrom_path};
unshift(@a_path_components, pop(@b_path_components));
}
return undef unless defined $i && defined $i->{copyfrom_path};
my $branch_from = $i->{copyfrom_path};
if (@a_path_components) {
print STDERR "branch_from: $branch_from => ";
$branch_from .= '/'.join('/', @a_path_components);
print STDERR $branch_from, "\n";
}
my $r = $i->{copyfrom_rev};
my $repos_root = $self->ra->{repos_root};
my $url = $self->ra->{url};
my $new_url = $url . $branch_from;
print STDERR "Found possible branch point: ",
"$new_url => ", $self->full_url, ", $r\n"
unless $::_q > 1;
$branch_from =~ s#^/##;
my $gs = $self->other_gs($new_url, $url,
$branch_from, $r, $self->{ref_id});
my ($r0, $parent) = $gs->find_rev_before($r, 1);
{
my ($base, $head);
if (!defined $r0 || !defined $parent) {
($base, $head) = parse_revision_argument(0, $r);
} else {
if ($r0 < $r) {
$gs->ra->get_log([$gs->{path}], $r0 + 1, $r, 1,
0, 1, sub { $base = $_[1] - 1 });
}
}
if (defined $base && $base <= $r) {
$gs->fetch($base, $r);
}
($r0, $parent) = $gs->find_rev_before($r, 1);
}
if (defined $r0 && defined $parent) {
print STDERR "Found branch parent: ($self->{ref_id}) $parent\n"
unless $::_q > 1;
my $ed;
if ($self->ra->can_do_switch) {
$self->assert_index_clean($parent);
print STDERR "Following parent with do_switch\n"
unless $::_q > 1;
# do_switch works with svn/trunk >= r22312, but that
# is not included with SVN 1.4.3 (the latest version
# at the moment), so we can't rely on it
$self->{last_rev} = $r0;
$self->{last_commit} = $parent;
$ed = SVN::Git::Fetcher->new($self, $gs->{path});
$gs->ra->gs_do_switch($r0, $rev, $gs,
$self->full_url, $ed)
or die "SVN connection failed somewhere...\n";
} elsif ($self->ra->trees_match($new_url, $r0,
$self->full_url, $rev)) {
print STDERR "Trees match:\n",
" $new_url\@$r0\n",
" ${\$self->full_url}\@$rev\n",
"Following parent with no changes\n"
unless $::_q > 1;
$self->tmp_index_do(sub {
command_noisy('read-tree', $parent);
});
$self->{last_commit} = $parent;
} else {
print STDERR "Following parent with do_update\n"
unless $::_q > 1;
$ed = SVN::Git::Fetcher->new($self);
$self->ra->gs_do_update($rev, $rev, $self, $ed)
or die "SVN connection failed somewhere...\n";
}
print STDERR "Successfully followed parent\n" unless $::_q > 1;
return $self->make_log_entry($rev, [$parent], $ed);
}
return undef;
}
sub do_fetch {
my ($self, $paths, $rev) = @_;
my $ed;
my ($last_rev, @parents);
if (my $lc = $self->last_commit) {
# we can have a branch that was deleted, then re-added
# under the same name but copied from another path, in
# which case we'll have multiple parents (we don't
# want to break the original ref, nor lose copypath info):
if (my $log_entry = $self->find_parent_branch($paths, $rev)) {
push @{$log_entry->{parents}}, $lc;
return $log_entry;
}
$ed = SVN::Git::Fetcher->new($self);
$last_rev = $self->{last_rev};
$ed->{c} = $lc;
@parents = ($lc);
} else {
$last_rev = $rev;
if (my $log_entry = $self->find_parent_branch($paths, $rev)) {
return $log_entry;
}
$ed = SVN::Git::Fetcher->new($self);
}
unless ($self->ra->gs_do_update($last_rev, $rev, $self, $ed)) {
die "SVN connection failed somewhere...\n";
}
$self->make_log_entry($rev, \@parents, $ed);
}
sub mkemptydirs {
my ($self, $r) = @_;
sub scan {
my ($r, $empty_dirs, $line) = @_;
if (defined $r && $line =~ /^r(\d+)$/) {
return 0 if $1 > $r;
} elsif ($line =~ /^ \+empty_dir: (.+)$/) {
$empty_dirs->{$1} = 1;
} elsif ($line =~ /^ \-empty_dir: (.+)$/) {
my @d = grep {m[^\Q$1\E(/|$)]} (keys %$empty_dirs);
delete @$empty_dirs{@d};
}
1; # continue
};
my %empty_dirs = ();
my $gz_file = "$self->{dir}/unhandled.log.gz";
if (-f $gz_file) {
if (!$can_compress) {
warn "Compress::Zlib could not be found; ",
"empty directories in $gz_file will not be read\n";
} else {
my $gz = Compress::Zlib::gzopen($gz_file, "rb") or
die "Unable to open $gz_file: $!\n";
my $line;
while ($gz->gzreadline($line) > 0) {
scan($r, \%empty_dirs, $line) or last;
}
$gz->gzclose;
}
}
if (open my $fh, '<', "$self->{dir}/unhandled.log") {
binmode $fh or croak "binmode: $!";
while (<$fh>) {
scan($r, \%empty_dirs, $_) or last;
}
close $fh;
}
my $strip = qr/\A\Q$self->{path}\E(?:\/|$)/;
foreach my $d (sort keys %empty_dirs) {
$d = uri_decode($d);
$d =~ s/$strip//;
next unless length($d);
next if -d $d;
if (-e $d) {
warn "$d exists but is not a directory\n";
} else {
print "creating empty directory: $d\n";
mkpath([$d]);
}
}
}
sub get_untracked {
my ($self, $ed) = @_;
my @out;
my $h = $ed->{empty};
foreach (sort keys %$h) {
my $act = $h->{$_} ? '+empty_dir' : '-empty_dir';
push @out, " $act: " . uri_encode($_);
warn "W: $act: $_\n";
}
foreach my $t (qw/dir_prop file_prop/) {
$h = $ed->{$t} or next;
foreach my $path (sort keys %$h) {
my $ppath = $path eq '' ? '.' : $path;
foreach my $prop (sort keys %{$h->{$path}}) {
next if $SKIP_PROP{$prop};
my $v = $h->{$path}->{$prop};
my $t_ppath_prop = "$t: " .
uri_encode($ppath) . ' ' .
uri_encode($prop);
if (defined $v) {
push @out, " +$t_ppath_prop " .
uri_encode($v);
} else {
push @out, " -$t_ppath_prop";
}
}
}
}
foreach my $t (qw/absent_file absent_directory/) {
$h = $ed->{$t} or next;
foreach my $parent (sort keys %$h) {
foreach my $path (sort @{$h->{$parent}}) {
push @out, " $t: " .
uri_encode("$parent/$path");
warn "W: $t: $parent/$path ",
"Insufficient permissions?\n";
}
}
}
\@out;
}
# parse_svn_date(DATE)
# --------------------
# Given a date (in UTC) from Subversion, return a string in the format
# "<TZ Offset> <local date/time>" that Git will use.
#
# By default the parsed date will be in UTC; if $Git::SVN::_localtime
# is true we'll convert it to the local timezone instead.
sub parse_svn_date {
my $date = shift || return '+0000 1970-01-01 00:00:00';
my ($Y,$m,$d,$H,$M,$S) = ($date =~ /^(\d{4})\-(\d\d)\-(\d\d)T
(\d\d)\:(\d\d)\:(\d\d)\.\d*Z$/x) or
croak "Unable to parse date: $date\n";
my $parsed_date; # Set next.
if ($Git::SVN::_localtime) {
# Translate the Subversion datetime to an epoch time.
# Begin by switching ourselves to $date's timezone, UTC.
my $old_env_TZ = $ENV{TZ};
$ENV{TZ} = 'UTC';
my $epoch_in_UTC =
POSIX::strftime('%s', $S, $M, $H, $d, $m - 1, $Y - 1900);
# Determine our local timezone (including DST) at the
# time of $epoch_in_UTC. $Git::SVN::Log::TZ stored the
# value of TZ, if any, at the time we were run.
if (defined $Git::SVN::Log::TZ) {
$ENV{TZ} = $Git::SVN::Log::TZ;
} else {
delete $ENV{TZ};
}
my $our_TZ =
POSIX::strftime('%Z', $S, $M, $H, $d, $m - 1, $Y - 1900);
# This converts $epoch_in_UTC into our local timezone.
my ($sec, $min, $hour, $mday, $mon, $year,
$wday, $yday, $isdst) = localtime($epoch_in_UTC);
$parsed_date = sprintf('%s %04d-%02d-%02d %02d:%02d:%02d',
$our_TZ, $year + 1900, $mon + 1,
$mday, $hour, $min, $sec);
# Reset us to the timezone in effect when we entered
# this routine.
if (defined $old_env_TZ) {
$ENV{TZ} = $old_env_TZ;
} else {
delete $ENV{TZ};
}
} else {
$parsed_date = "+0000 $Y-$m-$d $H:$M:$S";
}
return $parsed_date;
}
sub other_gs {
my ($self, $new_url, $url,
$branch_from, $r, $old_ref_id) = @_;
my $gs = Git::SVN->find_by_url($new_url, $url, $branch_from);
unless ($gs) {
my $ref_id = $old_ref_id;
$ref_id =~ s/\@\d+$//;
$ref_id .= "\@$r";
# just grow a tail if we're not unique enough :x
$ref_id .= '-' while find_ref($ref_id);
print STDERR "Initializing parent: $ref_id\n" unless $::_q > 1;
my ($u, $p, $repo_id) = ($new_url, '', $ref_id);
if ($u =~ s#^\Q$url\E(/|$)##) {
$p = $u;
$u = $url;
$repo_id = $self->{repo_id};
}
$gs = Git::SVN->init($u, $p, $repo_id, $ref_id, 1);
}
$gs
}
sub call_authors_prog {
my ($orig_author) = @_;
$orig_author = command_oneline('rev-parse', '--sq-quote', $orig_author);
my $author = `$::_authors_prog $orig_author`;
if ($? != 0) {
die "$::_authors_prog failed with exit code $?\n"
}
if ($author =~ /^\s*(.+?)\s*<(.*)>\s*$/) {
my ($name, $email) = ($1, $2);
$email = undef if length $2 == 0;
return [$name, $email];
} else {
die "Author: $orig_author: $::_authors_prog returned "
. "invalid author format: $author\n";
}
}
sub check_author {
my ($author) = @_;
if (!defined $author || length $author == 0) {
$author = '(no author)';
}
if (!defined $::users{$author}) {
if (defined $::_authors_prog) {
$::users{$author} = call_authors_prog($author);
} elsif (defined $::_authors) {
die "Author: $author not defined in $::_authors file\n";
}
}
$author;
}
sub find_extra_svk_parents {
my ($self, $ed, $tickets, $parents) = @_;
# aha! svk:merge property changed...
my @tickets = split "\n", $tickets;
my @known_parents;
for my $ticket ( @tickets ) {
my ($uuid, $path, $rev) = split /:/, $ticket;
if ( $uuid eq $self->ra_uuid ) {
my $url = $self->{url};
my $repos_root = $url;
my $branch_from = $path;
$branch_from =~ s{^/}{};
my $gs = $self->other_gs($repos_root."/".$branch_from,
$url,
$branch_from,
$rev,
$self->{ref_id});
if ( my $commit = $gs->rev_map_get($rev, $uuid) ) {
# wahey! we found it, but it might be
# an old one (!)
push @known_parents, [ $rev, $commit ];
}
}
}
# Ordering matters; highest-numbered commit merge tickets
# first, as they may account for later merge ticket additions
# or changes.
@known_parents = map {$_->[1]} sort {$b->[0] <=> $a->[0]} @known_parents;
for my $parent ( @known_parents ) {
my @cmd = ('rev-list', $parent, map { "^$_" } @$parents );
my ($msg_fh, $ctx) = command_output_pipe(@cmd);
my $new;
while ( <$msg_fh> ) {
$new=1;last;
}
command_close_pipe($msg_fh, $ctx);
if ( $new ) {
print STDERR
"Found merge parent (svk:merge ticket): $parent\n";
push @$parents, $parent;
}
}
}
sub lookup_svn_merge {
my $uuid = shift;
my $url = shift;
my $merge = shift;
my ($source, $revs) = split ":", $merge;
my $path = $source;
$path =~ s{^/}{};
my $gs = Git::SVN->find_by_url($url.$source, $url, $path);
if ( !$gs ) {
warn "Couldn't find revmap for $url$source\n";
return;
}
my @ranges = split ",", $revs;
my ($tip, $tip_commit);
my @merged_commit_ranges;
# find the tip
for my $range ( @ranges ) {
my ($bottom, $top) = split "-", $range;
$top ||= $bottom;
my $bottom_commit = $gs->find_rev_after( $bottom, 1, $top );
my $top_commit = $gs->find_rev_before( $top, 1, $bottom );
unless ($top_commit and $bottom_commit) {
warn "W:unknown path/rev in svn:mergeinfo "
."dirprop: $source:$range\n";
next;
}
push @merged_commit_ranges,
"$bottom_commit^..$top_commit";
if ( !defined $tip or $top > $tip ) {
$tip = $top;
$tip_commit = $top_commit;
}
}
return ($tip_commit, @merged_commit_ranges);
}
sub _rev_list {
my ($msg_fh, $ctx) = command_output_pipe(
"rev-list", @_,
);
my @rv;
while ( <$msg_fh> ) {
chomp;
push @rv, $_;
}
command_close_pipe($msg_fh, $ctx);
@rv;
}
sub check_cherry_pick {
my $base = shift;
my $tip = shift;
my @ranges = @_;
my %commits = map { $_ => 1 }
_rev_list("--no-merges", $tip, "--not", $base);
for my $range ( @ranges ) {
delete @commits{_rev_list($range)};
}
for my $commit (keys %commits) {
if (has_no_changes($commit)) {
delete $commits{$commit};
}
}
return (keys %commits);
}
sub has_no_changes {
my $commit = shift;
my @revs = split / /, command_oneline(
qw(rev-list --parents -1 -m), $commit);
# Commits with no parents, e.g. the start of a partial branch,
# have changes by definition.
return 1 if (@revs < 2);
# Commits with multiple parents, e.g a merge, have no changes
# by definition.
return 0 if (@revs > 2);
return (command_oneline("rev-parse", "$commit^{tree}") eq
command_oneline("rev-parse", "$commit~1^{tree}"));
}
# The GIT_DIR environment variable is not always set until after the command
# line arguments are processed, so we can't memoize in a BEGIN block.
{
my $memoized = 0;
sub memoize_svn_mergeinfo_functions {
return if $memoized;
$memoized = 1;
my $cache_path = "$ENV{GIT_DIR}/svn/.caches/";
mkpath([$cache_path]) unless -d $cache_path;
tie my %lookup_svn_merge_cache => 'Memoize::Storable',
"$cache_path/lookup_svn_merge.db", 'nstore';
memoize 'lookup_svn_merge',
SCALAR_CACHE => 'FAULT',
LIST_CACHE => ['HASH' => \%lookup_svn_merge_cache],
;
tie my %check_cherry_pick_cache => 'Memoize::Storable',
"$cache_path/check_cherry_pick.db", 'nstore';
memoize 'check_cherry_pick',
SCALAR_CACHE => 'FAULT',
LIST_CACHE => ['HASH' => \%check_cherry_pick_cache],
;
tie my %has_no_changes_cache => 'Memoize::Storable',
"$cache_path/has_no_changes.db", 'nstore';
memoize 'has_no_changes',
SCALAR_CACHE => ['HASH' => \%has_no_changes_cache],
LIST_CACHE => 'FAULT',
;
}
sub unmemoize_svn_mergeinfo_functions {
return if not $memoized;
$memoized = 0;
Memoize::unmemoize 'lookup_svn_merge';
Memoize::unmemoize 'check_cherry_pick';
Memoize::unmemoize 'has_no_changes';
}
}
END {
# Force cache writeout explicitly instead of waiting for
# global destruction to avoid segfault in Storable:
# http://rt.cpan.org/Public/Bug/Display.html?id=36087
unmemoize_svn_mergeinfo_functions();
}
sub parents_exclude {
my $parents = shift;
my @commits = @_;
return unless @commits;
my @excluded;
my $excluded;
do {
my @cmd = ('rev-list', "-1", @commits, "--not", @$parents );
$excluded = command_oneline(@cmd);
if ( $excluded ) {
my @new;
my $found;
for my $commit ( @commits ) {
if ( $commit eq $excluded ) {
push @excluded, $commit;
$found++;
last;
}
else {
push @new, $commit;
}
}
die "saw commit '$excluded' in rev-list output, "
."but we didn't ask for that commit (wanted: @commits --not @$parents)"
unless $found;
@commits = @new;
}
}
while ($excluded and @commits);
return @excluded;
}
# note: this function should only be called if the various dirprops
# have actually changed
sub find_extra_svn_parents {
my ($self, $ed, $mergeinfo, $parents) = @_;
# aha! svk:merge property changed...
memoize_svn_mergeinfo_functions();
# We first search for merged tips which are not in our
# history. Then, we figure out which git revisions are in
# that tip, but not this revision. If all of those revisions
# are now marked as merge, we can add the tip as a parent.
my @merges = split "\n", $mergeinfo;
my @merge_tips;
my $url = $self->{url};
my $uuid = $self->ra_uuid;
my %ranges;
for my $merge ( @merges ) {
my ($tip_commit, @ranges) =
lookup_svn_merge( $uuid, $url, $merge );
unless (!$tip_commit or
grep { $_ eq $tip_commit } @$parents ) {
push @merge_tips, $tip_commit;
$ranges{$tip_commit} = \@ranges;
} else {
push @merge_tips, undef;
}
}
my %excluded = map { $_ => 1 }
parents_exclude($parents, grep { defined } @merge_tips);
# check merge tips for new parents
my @new_parents;
for my $merge_tip ( @merge_tips ) {
my $spec = shift @merges;
next unless $merge_tip and $excluded{$merge_tip};
my $ranges = $ranges{$merge_tip};
# check out 'new' tips
my $merge_base;
eval {
$merge_base = command_oneline(
"merge-base",
@$parents, $merge_tip,
);
};
if ($@) {
die "An error occurred during merge-base"
unless $@->isa("Git::Error::Command");
warn "W: Cannot find common ancestor between ".
"@$parents and $merge_tip. Ignoring merge info.\n";
next;
}
# double check that there are no missing non-merge commits
my (@incomplete) = check_cherry_pick(
$merge_base, $merge_tip,
@$ranges,
);
if ( @incomplete ) {
warn "W:svn cherry-pick ignored ($spec) - missing "
.@incomplete." commit(s) (eg $incomplete[0])\n";
} else {
warn
"Found merge parent (svn:mergeinfo prop): ",
$merge_tip, "\n";
push @new_parents, $merge_tip;
}
}
# cater for merges which merge commits from multiple branches
if ( @new_parents > 1 ) {
for ( my $i = 0; $i <= $#new_parents; $i++ ) {
for ( my $j = 0; $j <= $#new_parents; $j++ ) {
next if $i == $j;
next unless $new_parents[$i];
next unless $new_parents[$j];
my $revs = command_oneline(
"rev-list", "-1",
"$new_parents[$i]..$new_parents[$j]",
);
if ( !$revs ) {
undef($new_parents[$j]);
}
}
}
}
push @$parents, grep { defined } @new_parents;
}
sub make_log_entry {
my ($self, $rev, $parents, $ed) = @_;
my $untracked = $self->get_untracked($ed);
my @parents = @$parents;
my $ps = $ed->{path_strip} || "";
for my $path ( grep { m/$ps/ } %{$ed->{dir_prop}} ) {
my $props = $ed->{dir_prop}{$path};
if ( $props->{"svk:merge"} ) {
$self->find_extra_svk_parents
($ed, $props->{"svk:merge"}, \@parents);
}
if ( $props->{"svn:mergeinfo"} ) {
$self->find_extra_svn_parents
($ed,
$props->{"svn:mergeinfo"},
\@parents);
}
}
open my $un, '>>', "$self->{dir}/unhandled.log" or croak $!;
print $un "r$rev\n" or croak $!;
print $un $_, "\n" foreach @$untracked;
my %log_entry = ( parents => \@parents, revision => $rev,
log => '');
my $headrev;
my $logged = delete $self->{logged_rev_props};
if (!$logged || $self->{-want_revprops}) {
my $rp = $self->ra->rev_proplist($rev);
foreach (sort keys %$rp) {
my $v = $rp->{$_};
if (/^svn:(author|date|log)$/) {
$log_entry{$1} = $v;
} elsif ($_ eq 'svm:headrev') {
$headrev = $v;
} else {
print $un " rev_prop: ", uri_encode($_), ' ',
uri_encode($v), "\n";
}
}
} else {
map { $log_entry{$_} = $logged->{$_} } keys %$logged;
}
close $un or croak $!;
$log_entry{date} = parse_svn_date($log_entry{date});
$log_entry{log} .= "\n";
my $author = $log_entry{author} = check_author($log_entry{author});
my ($name, $email) = defined $::users{$author} ? @{$::users{$author}}
: ($author, undef);
my ($commit_name, $commit_email) = ($name, $email);
if ($_use_log_author) {
my $name_field;
if ($log_entry{log} =~ /From:\s+(.*\S)\s*\n/i) {
$name_field = $1;
} elsif ($log_entry{log} =~ /Signed-off-by:\s+(.*\S)\s*\n/i) {
$name_field = $1;
}
if (!defined $name_field) {
if (!defined $email) {
$email = $name;
}
} elsif ($name_field =~ /(.*?)\s+<(.*)>/) {
($name, $email) = ($1, $2);
} elsif ($name_field =~ /(.*)@/) {
($name, $email) = ($1, $name_field);
} else {
($name, $email) = ($name_field, $name_field);
}
}
if (defined $headrev && $self->use_svm_props) {
if ($self->rewrite_root) {
die "Can't have both 'useSvmProps' and 'rewriteRoot' ",
"options set!\n";
}
if ($self->rewrite_uuid) {
die "Can't have both 'useSvmProps' and 'rewriteUUID' ",
"options set!\n";
}
my ($uuid, $r) = $headrev =~ m{^([a-f\d\-]{30,}):(\d+)$}i;
# we don't want "SVM: initializing mirror for junk" ...
return undef if $r == 0;
my $svm = $self->svm;
if ($uuid ne $svm->{uuid}) {
die "UUID mismatch on SVM path:\n",
"expected: $svm->{uuid}\n",
" got: $uuid\n";
}
my $full_url = $self->full_url;
$full_url =~ s#^\Q$svm->{replace}\E(/|$)#$svm->{source}$1# or
die "Failed to replace '$svm->{replace}' with ",
"'$svm->{source}' in $full_url\n";
# throw away username for storing in records
remove_username($full_url);
$log_entry{metadata} = "$full_url\@$r $uuid";
$log_entry{svm_revision} = $r;
$email ||= "$author\@$uuid";
$commit_email ||= "$author\@$uuid";
} elsif ($self->use_svnsync_props) {
my $full_url = $self->svnsync->{url};
$full_url .= "/$self->{path}" if length $self->{path};
remove_username($full_url);
my $uuid = $self->svnsync->{uuid};
$log_entry{metadata} = "$full_url\@$rev $uuid";
$email ||= "$author\@$uuid";
$commit_email ||= "$author\@$uuid";
} else {
my $url = $self->metadata_url;
remove_username($url);
my $uuid = $self->rewrite_uuid || $self->ra->get_uuid;
$log_entry{metadata} = "$url\@$rev " . $uuid;
$email ||= "$author\@" . $uuid;
$commit_email ||= "$author\@" . $uuid;
}
$log_entry{name} = $name;
$log_entry{email} = $email;
$log_entry{commit_name} = $commit_name;
$log_entry{commit_email} = $commit_email;
\%log_entry;
}
sub fetch {
my ($self, $min_rev, $max_rev, @parents) = @_;
my ($last_rev, $last_commit) = $self->last_rev_commit;
my ($base, $head) = $self->get_fetch_range($min_rev, $max_rev);
$self->ra->gs_fetch_loop_common($base, $head, [$self]);
}
sub set_tree_cb {
my ($self, $log_entry, $tree, $rev, $date, $author) = @_;
$self->{inject_parents} = { $rev => $tree };
$self->fetch(undef, undef);
}
sub set_tree {
my ($self, $tree) = (shift, shift);
my $log_entry = ::get_commit_entry($tree);
unless ($self->{last_rev}) {
::fatal("Must have an existing revision to commit");
}
my %ed_opts = ( r => $self->{last_rev},
log => $log_entry->{log},
ra => $self->ra,
tree_a => $self->{last_commit},
tree_b => $tree,
editor_cb => sub {
$self->set_tree_cb($log_entry, $tree, @_) },
svn_path => $self->{path} );
if (!SVN::Git::Editor->new(\%ed_opts)->apply_diff) {
print "No changes\nr$self->{last_rev} = $tree\n";
}
}
sub rebuild_from_rev_db {
my ($self, $path) = @_;
my $r = -1;
open my $fh, '<', $path or croak "open: $!";
binmode $fh or croak "binmode: $!";
while (<$fh>) {
length($_) == 41 or croak "inconsistent size in ($_) != 41";
chomp($_);
++$r;
next if $_ eq ('0' x 40);
$self->rev_map_set($r, $_);
print "r$r = $_\n";
}
close $fh or croak "close: $!";
unlink $path or croak "unlink: $!";
}
sub rebuild {
my ($self) = @_;
my $map_path = $self->map_path;
my $partial = (-e $map_path && ! -z $map_path);
return unless ::verify_ref($self->refname.'^0');
if (!$partial && ($self->use_svm_props || $self->no_metadata)) {
my $rev_db = $self->rev_db_path;
$self->rebuild_from_rev_db($rev_db);
if ($self->use_svm_props) {
my $svm_rev_db = $self->rev_db_path($self->svm_uuid);
$self->rebuild_from_rev_db($svm_rev_db);
}
$self->unlink_rev_db_symlink;
return;
}
print "Rebuilding $map_path ...\n" if (!$partial);
my ($base_rev, $head) = ($partial ? $self->rev_map_max_norebuild(1) :
(undef, undef));
my ($log, $ctx) =
command_output_pipe(qw/rev-list --pretty=raw --no-color --reverse/,
($head ? "$head.." : "") . $self->refname,
'--');
my $metadata_url = $self->metadata_url;
remove_username($metadata_url);
my $svn_uuid = $self->rewrite_uuid || $self->ra_uuid;
my $c;
while (<$log>) {
if ( m{^commit ($::sha1)$} ) {
$c = $1;
next;
}
next unless s{^\s*(git-svn-id:)}{$1};
my ($url, $rev, $uuid) = ::extract_metadata($_);
remove_username($url);
# ignore merges (from set-tree)
next if (!defined $rev || !$uuid);
# if we merged or otherwise started elsewhere, this is
# how we break out of it
if (($uuid ne $svn_uuid) ||
($metadata_url && $url && ($url ne $metadata_url))) {
next;
}
if ($partial && $head) {
print "Partial-rebuilding $map_path ...\n";
print "Currently at $base_rev = $head\n";
$head = undef;
}
$self->rev_map_set($rev, $c);
print "r$rev = $c\n";
}
command_close_pipe($log, $ctx);
print "Done rebuilding $map_path\n" if (!$partial || !$head);
my $rev_db_path = $self->rev_db_path;
if (-f $self->rev_db_path) {
unlink $self->rev_db_path or croak "unlink: $!";
}
$self->unlink_rev_db_symlink;
}
# rev_map:
# Tie::File seems to be prone to offset errors if revisions get sparse,
# it's not that fast, either. Tie::File is also not in Perl 5.6. So
# one of my favorite modules is out :< Next up would be one of the DBM
# modules, but I'm not sure which is most portable...
#
# This is the replacement for the rev_db format, which was too big
# and inefficient for large repositories with a lot of sparse history
# (mainly tags)
#
# The format is this:
# - 24 bytes for every record,
# * 4 bytes for the integer representing an SVN revision number
# * 20 bytes representing the sha1 of a git commit
# - No empty padding records like the old format
# (except the last record, which can be overwritten)
# - new records are written append-only since SVN revision numbers
# increase monotonically
# - lookups on SVN revision number are done via a binary search
# - Piping the file to xxd -c24 is a good way of dumping it for
# viewing or editing (piped back through xxd -r), should the need
# ever arise.
# - The last record can be padding revision with an all-zero sha1
# This is used to optimize fetch performance when using multiple
# "fetch" directives in .git/config
#
# These files are disposable unless noMetadata or useSvmProps is set
sub _rev_map_set {
my ($fh, $rev, $commit) = @_;
binmode $fh or croak "binmode: $!";
my $size = (stat($fh))[7];
($size % 24) == 0 or croak "inconsistent size: $size";
my $wr_offset = 0;
if ($size > 0) {
sysseek($fh, -24, SEEK_END) or croak "seek: $!";
my $read = sysread($fh, my $buf, 24) or croak "read: $!";
$read == 24 or croak "read only $read bytes (!= 24)";
my ($last_rev, $last_commit) = unpack(rev_map_fmt, $buf);
if ($last_commit eq ('0' x40)) {
if ($size >= 48) {
sysseek($fh, -48, SEEK_END) or croak "seek: $!";
$read = sysread($fh, $buf, 24) or
croak "read: $!";
$read == 24 or
croak "read only $read bytes (!= 24)";
($last_rev, $last_commit) =
unpack(rev_map_fmt, $buf);
if ($last_commit eq ('0' x40)) {
croak "inconsistent .rev_map\n";
}
}
if ($last_rev >= $rev) {
croak "last_rev is higher!: $last_rev >= $rev";
}
$wr_offset = -24;
}
}
sysseek($fh, $wr_offset, SEEK_END) or croak "seek: $!";
syswrite($fh, pack(rev_map_fmt, $rev, $commit), 24) == 24 or
croak "write: $!";
}
sub _rev_map_reset {
my ($fh, $rev, $commit) = @_;
my $c = _rev_map_get($fh, $rev);
$c eq $commit or die "_rev_map_reset(@_) commit $c does not match!\n";
my $offset = sysseek($fh, 0, SEEK_CUR) or croak "seek: $!";
truncate $fh, $offset or croak "truncate: $!";
}
sub mkfile {
my ($path) = @_;
unless (-e $path) {
my ($dir, $base) = ($path =~ m#^(.*?)/?([^/]+)$#);
mkpath([$dir]) unless -d $dir;
open my $fh, '>>', $path or die "Couldn't create $path: $!\n";
close $fh or die "Couldn't close (create) $path: $!\n";
}
}
sub rev_map_set {
my ($self, $rev, $commit, $update_ref, $uuid) = @_;
defined $commit or die "missing arg3\n";
length $commit == 40 or die "arg3 must be a full SHA1 hexsum\n";
my $db = $self->map_path($uuid);
my $db_lock = "$db.lock";
my $sig;
$update_ref ||= 0;
if ($update_ref) {
$SIG{INT} = $SIG{HUP} = $SIG{TERM} = $SIG{ALRM} = $SIG{PIPE} =
$SIG{USR1} = $SIG{USR2} = sub { $sig = $_[0] };
}
mkfile($db);
$LOCKFILES{$db_lock} = 1;
my $sync;
# both of these options make our .rev_db file very, very important
# and we can't afford to lose it because rebuild() won't work
if ($self->use_svm_props || $self->no_metadata) {
$sync = 1;
copy($db, $db_lock) or die "rev_map_set(@_): ",
"Failed to copy: ",
"$db => $db_lock ($!)\n";
} else {
rename $db, $db_lock or die "rev_map_set(@_): ",
"Failed to rename: ",
"$db => $db_lock ($!)\n";
}
sysopen(my $fh, $db_lock, O_RDWR | O_CREAT)
or croak "Couldn't open $db_lock: $!\n";
$update_ref eq 'reset' ? _rev_map_reset($fh, $rev, $commit) :
_rev_map_set($fh, $rev, $commit);
if ($sync) {
$fh->flush or die "Couldn't flush $db_lock: $!\n";
$fh->sync or die "Couldn't sync $db_lock: $!\n";
}
close $fh or croak $!;
if ($update_ref) {
$_head = $self;
my $note = "";
$note = " ($update_ref)" if ($update_ref !~ /^\d*$/);
command_noisy('update-ref', '-m', "r$rev$note",
$self->refname, $commit);
}
rename $db_lock, $db or die "rev_map_set(@_): ", "Failed to rename: ",
"$db_lock => $db ($!)\n";
delete $LOCKFILES{$db_lock};
if ($update_ref) {
$SIG{INT} = $SIG{HUP} = $SIG{TERM} = $SIG{ALRM} = $SIG{PIPE} =
$SIG{USR1} = $SIG{USR2} = 'DEFAULT';
kill $sig, $$ if defined $sig;
}
}
# If want_commit, this will return an array of (rev, commit) where
# commit _must_ be a valid commit in the archive.
# Otherwise, it'll return the max revision (whether or not the
# commit is valid or just a 0x40 placeholder).
sub rev_map_max {
my ($self, $want_commit) = @_;
$self->rebuild;
my ($r, $c) = $self->rev_map_max_norebuild($want_commit);
$want_commit ? ($r, $c) : $r;
}
sub rev_map_max_norebuild {
my ($self, $want_commit) = @_;
my $map_path = $self->map_path;
stat $map_path or return $want_commit ? (0, undef) : 0;
sysopen(my $fh, $map_path, O_RDONLY) or croak "open: $!";
binmode $fh or croak "binmode: $!";
my $size = (stat($fh))[7];
($size % 24) == 0 or croak "inconsistent size: $size";
if ($size == 0) {
close $fh or croak "close: $!";
return $want_commit ? (0, undef) : 0;
}
sysseek($fh, -24, SEEK_END) or croak "seek: $!";
sysread($fh, my $buf, 24) == 24 or croak "read: $!";
my ($r, $c) = unpack(rev_map_fmt, $buf);
if ($want_commit && $c eq ('0' x40)) {
if ($size < 48) {
return $want_commit ? (0, undef) : 0;
}
sysseek($fh, -48, SEEK_END) or croak "seek: $!";
sysread($fh, $buf, 24) == 24 or croak "read: $!";
($r, $c) = unpack(rev_map_fmt, $buf);
if ($c eq ('0'x40)) {
croak "Penultimate record is all-zeroes in $map_path";
}
}
close $fh or croak "close: $!";
$want_commit ? ($r, $c) : $r;
}
sub rev_map_get {
my ($self, $rev, $uuid) = @_;
my $map_path = $self->map_path($uuid);
return undef unless -e $map_path;
sysopen(my $fh, $map_path, O_RDONLY) or croak "open: $!";
my $c = _rev_map_get($fh, $rev);
close($fh) or croak "close: $!";
$c
}
sub _rev_map_get {
my ($fh, $rev) = @_;
binmode $fh or croak "binmode: $!";
my $size = (stat($fh))[7];
($size % 24) == 0 or croak "inconsistent size: $size";
if ($size == 0) {
return undef;
}
my ($l, $u) = (0, $size - 24);
my ($r, $c, $buf);
while ($l <= $u) {
my $i = int(($l/24 + $u/24) / 2) * 24;
sysseek($fh, $i, SEEK_SET) or croak "seek: $!";
sysread($fh, my $buf, 24) == 24 or croak "read: $!";
my ($r, $c) = unpack(rev_map_fmt, $buf);
if ($r < $rev) {
$l = $i + 24;
} elsif ($r > $rev) {
$u = $i - 24;
} else { # $r == $rev
return $c eq ('0' x 40) ? undef : $c;
}
}
undef;
}
# Finds the first svn revision that exists on (if $eq_ok is true) or
# before $rev for the current branch. It will not search any lower
# than $min_rev. Returns the git commit hash and svn revision number
# if found, else (undef, undef).
sub find_rev_before {
my ($self, $rev, $eq_ok, $min_rev) = @_;
--$rev unless $eq_ok;
$min_rev ||= 1;
my $max_rev = $self->rev_map_max;
$rev = $max_rev if ($rev > $max_rev);
while ($rev >= $min_rev) {
if (my $c = $self->rev_map_get($rev)) {
return ($rev, $c);
}
--$rev;
}
return (undef, undef);
}
# Finds the first svn revision that exists on (if $eq_ok is true) or
# after $rev for the current branch. It will not search any higher
# than $max_rev. Returns the git commit hash and svn revision number
# if found, else (undef, undef).
sub find_rev_after {
my ($self, $rev, $eq_ok, $max_rev) = @_;
++$rev unless $eq_ok;
$max_rev ||= $self->rev_map_max;
while ($rev <= $max_rev) {
if (my $c = $self->rev_map_get($rev)) {
return ($rev, $c);
}
++$rev;
}
return (undef, undef);
}
sub _new {
my ($class, $repo_id, $ref_id, $path) = @_;
unless (defined $repo_id && length $repo_id) {
$repo_id = $Git::SVN::default_repo_id;
}
unless (defined $ref_id && length $ref_id) {
$_prefix = '' unless defined($_prefix);
$_[2] = $ref_id =
"refs/remotes/$_prefix$Git::SVN::default_ref_id";
}
$_[1] = $repo_id;
my $dir = "$ENV{GIT_DIR}/svn/$ref_id";
# Older repos imported by us used $GIT_DIR/svn/foo instead of
# $GIT_DIR/svn/refs/remotes/foo when tracking refs/remotes/foo
if ($ref_id =~ m{^refs/remotes/(.*)}) {
my $old_dir = "$ENV{GIT_DIR}/svn/$1";
if (-d $old_dir && ! -d $dir) {
$dir = $old_dir;
}
}
$_[3] = $path = '' unless (defined $path);
mkpath([$dir]);
bless {
ref_id => $ref_id, dir => $dir, index => "$dir/index",
path => $path, config => "$ENV{GIT_DIR}/svn/config",
map_root => "$dir/.rev_map", repo_id => $repo_id }, $class;
}
# for read-only access of old .rev_db formats
sub unlink_rev_db_symlink {
my ($self) = @_;
my $link = $self->rev_db_path;
$link =~ s/\.[\w-]+$// or croak "missing UUID at the end of $link";
if (-l $link) {
unlink $link or croak "unlink: $link failed!";
}
}
sub rev_db_path {
my ($self, $uuid) = @_;
my $db_path = $self->map_path($uuid);
$db_path =~ s{/\.rev_map\.}{/\.rev_db\.}
or croak "map_path: $db_path does not contain '/.rev_map.' !";
$db_path;
}
# the new replacement for .rev_db
sub map_path {
my ($self, $uuid) = @_;
$uuid ||= $self->ra_uuid;
"$self->{map_root}.$uuid";
}
sub uri_encode {
my ($f) = @_;
$f =~ s#([^a-zA-Z0-9\*!\:_\./\-])#uc sprintf("%%%02x",ord($1))#eg;
$f
}
sub uri_decode {
my ($f) = @_;
$f =~ s#%([0-9a-fA-F]{2})#chr(hex($1))#eg;
$f
}
sub remove_username {
$_[0] =~ s{^([^:]*://)[^@]+@}{$1};
}
package Git::SVN::Prompt;
use strict;
use warnings;
require SVN::Core;
use vars qw/$_no_auth_cache $_username/;
sub simple {
my ($cred, $realm, $default_username, $may_save, $pool) = @_;
$may_save = undef if $_no_auth_cache;
$default_username = $_username if defined $_username;
if (defined $default_username && length $default_username) {
if (defined $realm && length $realm) {
print STDERR "Authentication realm: $realm\n";
STDERR->flush;
}
$cred->username($default_username);
} else {
username($cred, $realm, $may_save, $pool);
}
$cred->password(_read_password("Password for '" .
$cred->username . "': ", $realm));
$cred->may_save($may_save);
$SVN::_Core::SVN_NO_ERROR;
}
sub ssl_server_trust {
my ($cred, $realm, $failures, $cert_info, $may_save, $pool) = @_;
$may_save = undef if $_no_auth_cache;
print STDERR "Error validating server certificate for '$realm':\n";
{
no warnings 'once';
# All variables SVN::Auth::SSL::* are used only once,
# so we're shutting up Perl warnings about this.
if ($failures & $SVN::Auth::SSL::UNKNOWNCA) {
print STDERR " - The certificate is not issued ",
"by a trusted authority. Use the\n",
" fingerprint to validate ",
"the certificate manually!\n";
}
if ($failures & $SVN::Auth::SSL::CNMISMATCH) {
print STDERR " - The certificate hostname ",
"does not match.\n";
}
if ($failures & $SVN::Auth::SSL::NOTYETVALID) {
print STDERR " - The certificate is not yet valid.\n";
}
if ($failures & $SVN::Auth::SSL::EXPIRED) {
print STDERR " - The certificate has expired.\n";
}
if ($failures & $SVN::Auth::SSL::OTHER) {
print STDERR " - The certificate has ",
"an unknown error.\n";
}
} # no warnings 'once'
printf STDERR
"Certificate information:\n".
" - Hostname: %s\n".
" - Valid: from %s until %s\n".
" - Issuer: %s\n".
" - Fingerprint: %s\n",
map $cert_info->$_, qw(hostname valid_from valid_until
issuer_dname fingerprint);
my $choice;
prompt:
print STDERR $may_save ?
"(R)eject, accept (t)emporarily or accept (p)ermanently? " :
"(R)eject or accept (t)emporarily? ";
STDERR->flush;
$choice = lc(substr(<STDIN> || 'R', 0, 1));
if ($choice =~ /^t$/i) {
$cred->may_save(undef);
} elsif ($choice =~ /^r$/i) {
return -1;
} elsif ($may_save && $choice =~ /^p$/i) {
$cred->may_save($may_save);
} else {
goto prompt;
}
$cred->accepted_failures($failures);
$SVN::_Core::SVN_NO_ERROR;
}
sub ssl_client_cert {
my ($cred, $realm, $may_save, $pool) = @_;
$may_save = undef if $_no_auth_cache;
print STDERR "Client certificate filename: ";
STDERR->flush;
chomp(my $filename = <STDIN>);
$cred->cert_file($filename);
$cred->may_save($may_save);
$SVN::_Core::SVN_NO_ERROR;
}
sub ssl_client_cert_pw {
my ($cred, $realm, $may_save, $pool) = @_;
$may_save = undef if $_no_auth_cache;
$cred->password(_read_password("Password: ", $realm));
$cred->may_save($may_save);
$SVN::_Core::SVN_NO_ERROR;
}
sub username {
my ($cred, $realm, $may_save, $pool) = @_;
$may_save = undef if $_no_auth_cache;
if (defined $realm && length $realm) {
print STDERR "Authentication realm: $realm\n";
}
my $username;
if (defined $_username) {
$username = $_username;
} else {
print STDERR "Username: ";
STDERR->flush;
chomp($username = <STDIN>);
}
$cred->username($username);
$cred->may_save($may_save);
$SVN::_Core::SVN_NO_ERROR;
}
sub _read_password {
my ($prompt, $realm) = @_;
my $password = '';
if (exists $ENV{GIT_ASKPASS}) {
open(PH, "-|", $ENV{GIT_ASKPASS}, $prompt);
$password = <PH>;
$password =~ s/[\012\015]//; # \n\r
close(PH);
} else {
print STDERR $prompt;
STDERR->flush;
require Term::ReadKey;
Term::ReadKey::ReadMode('noecho');
while (defined(my $key = Term::ReadKey::ReadKey(0))) {
last if $key =~ /[\012\015]/; # \n\r
$password .= $key;
}
Term::ReadKey::ReadMode('restore');
print STDERR "\n";
STDERR->flush;
}
$password;
}
package SVN::Git::Fetcher;
use vars qw/@ISA/;
use strict;
use warnings;
use Carp qw/croak/;
use IO::File qw//;
use vars qw/$_ignore_regex/;
# file baton members: path, mode_a, mode_b, pool, fh, blob, base
sub new {
my ($class, $git_svn, $switch_path) = @_;
my $self = SVN::Delta::Editor->new;
bless $self, $class;
if (exists $git_svn->{last_commit}) {
$self->{c} = $git_svn->{last_commit};
$self->{empty_symlinks} =
_mark_empty_symlinks($git_svn, $switch_path);
}
$self->{ignore_regex} = eval { command_oneline('config', '--get',
"svn-remote.$git_svn->{repo_id}.ignore-paths") };
$self->{empty} = {};
$self->{dir_prop} = {};
$self->{file_prop} = {};
$self->{absent_dir} = {};
$self->{absent_file} = {};
$self->{gii} = $git_svn->tmp_index_do(sub { Git::IndexInfo->new });
$self;
}
# this uses the Ra object, so it must be called before do_{switch,update},
# not inside them (when the Git::SVN::Fetcher object is passed) to
# do_{switch,update}
sub _mark_empty_symlinks {
my ($git_svn, $switch_path) = @_;
my $bool = Git::config_bool('svn.brokenSymlinkWorkaround');
return {} if (!defined($bool)) || (defined($bool) && ! $bool);
my %ret;
my ($rev, $cmt) = $git_svn->last_rev_commit;
return {} unless ($rev && $cmt);
# allow the warning to be printed for each revision we fetch to
# ensure the user sees it. The user can also disable the workaround
# on the repository even while git svn is running and the next
# revision fetched will skip this expensive function.
my $printed_warning;
chomp(my $empty_blob = `git hash-object -t blob --stdin < /dev/null`);
my ($ls, $ctx) = command_output_pipe(qw/ls-tree -r -z/, $cmt);
local $/ = "\0";
my $pfx = defined($switch_path) ? $switch_path : $git_svn->{path};
$pfx .= '/' if length($pfx);
while (<$ls>) {
chomp;
s/\A100644 blob $empty_blob\t//o or next;
unless ($printed_warning) {
print STDERR "Scanning for empty symlinks, ",
"this may take a while if you have ",
"many empty files\n",
"You may disable this with `",
"git config svn.brokenSymlinkWorkaround ",
"false'.\n",
"This may be done in a different ",
"terminal without restarting ",
"git svn\n";
$printed_warning = 1;
}
my $path = $_;
my (undef, $props) =
$git_svn->ra->get_file($pfx.$path, $rev, undef);
if ($props->{'svn:special'}) {
$ret{$path} = 1;
}
}
command_close_pipe($ls, $ctx);
\%ret;
}
# returns true if a given path is inside a ".git" directory
sub in_dot_git {
$_[0] =~ m{(?:^|/)\.git(?:/|$)};
}
# return value: 0 -- don't ignore, 1 -- ignore
sub is_path_ignored {
my ($self, $path) = @_;
return 1 if in_dot_git($path);
return 1 if defined($self->{ignore_regex}) &&
$path =~ m!$self->{ignore_regex}!;
return 0 unless defined($_ignore_regex);
return 1 if $path =~ m!$_ignore_regex!o;
return 0;
}
sub set_path_strip {
my ($self, $path) = @_;
$self->{path_strip} = qr/^\Q$path\E(\/|$)/ if length $path;
}
sub open_root {
{ path => '' };
}
sub open_directory {
my ($self, $path, $pb, $rev) = @_;
{ path => $path };
}
sub git_path {
my ($self, $path) = @_;
if ($self->{path_strip}) {
$path =~ s!$self->{path_strip}!! or
die "Failed to strip path '$path' ($self->{path_strip})\n";
}
$path;
}
sub delete_entry {
my ($self, $path, $rev, $pb) = @_;
return undef if $self->is_path_ignored($path);
my $gpath = $self->git_path($path);
return undef if ($gpath eq '');
# remove entire directories.
my ($tree) = (command('ls-tree', '-z', $self->{c}, "./$gpath")
=~ /\A040000 tree ([a-f\d]{40})\t\Q$gpath\E\0/);
if ($tree) {
my ($ls, $ctx) = command_output_pipe(qw/ls-tree
-r --name-only -z/,
$tree);
local $/ = "\0";
while (<$ls>) {
chomp;
my $rmpath = "$gpath/$_";
$self->{gii}->remove($rmpath);
print "\tD\t$rmpath\n" unless $::_q;
}
print "\tD\t$gpath/\n" unless $::_q;
command_close_pipe($ls, $ctx);
} else {
$self->{gii}->remove($gpath);
print "\tD\t$gpath\n" unless $::_q;
}
$self->{empty}->{$path} = 0;
undef;
}
sub open_file {
my ($self, $path, $pb, $rev) = @_;
my ($mode, $blob);
goto out if $self->is_path_ignored($path);
my $gpath = $self->git_path($path);
($mode, $blob) = (command('ls-tree', '-z', $self->{c}, "./$gpath")
=~ /\A(\d{6}) blob ([a-f\d]{40})\t\Q$gpath\E\0/);
unless (defined $mode && defined $blob) {
die "$path was not found in commit $self->{c} (r$rev)\n";
}
if ($mode eq '100644' && $self->{empty_symlinks}->{$path}) {
$mode = '120000';
}
out:
{ path => $path, mode_a => $mode, mode_b => $mode, blob => $blob,
pool => SVN::Pool->new, action => 'M' };
}
sub add_file {
my ($self, $path, $pb, $cp_path, $cp_rev) = @_;
my $mode;
if (!$self->is_path_ignored($path)) {
my ($dir, $file) = ($path =~ m#^(.*?)/?([^/]+)$#);
delete $self->{empty}->{$dir};
$mode = '100644';
}
{ path => $path, mode_a => $mode, mode_b => $mode,
pool => SVN::Pool->new, action => 'A' };
}
sub add_directory {
my ($self, $path, $cp_path, $cp_rev) = @_;
goto out if $self->is_path_ignored($path);
my $gpath = $self->git_path($path);
if ($gpath eq '') {
my ($ls, $ctx) = command_output_pipe(qw/ls-tree
-r --name-only -z/,
$self->{c});
local $/ = "\0";
while (<$ls>) {
chomp;
$self->{gii}->remove($_);
print "\tD\t$_\n" unless $::_q;
}
command_close_pipe($ls, $ctx);
$self->{empty}->{$path} = 0;
}
my ($dir, $file) = ($path =~ m#^(.*?)/?([^/]+)$#);
delete $self->{empty}->{$dir};
$self->{empty}->{$path} = 1;
out:
{ path => $path };
}
sub change_dir_prop {
my ($self, $db, $prop, $value) = @_;
return undef if $self->is_path_ignored($db->{path});
$self->{dir_prop}->{$db->{path}} ||= {};
$self->{dir_prop}->{$db->{path}}->{$prop} = $value;
undef;
}
sub absent_directory {
my ($self, $path, $pb) = @_;
return undef if $self->is_path_ignored($path);
$self->{absent_dir}->{$pb->{path}} ||= [];
push @{$self->{absent_dir}->{$pb->{path}}}, $path;
undef;
}
sub absent_file {
my ($self, $path, $pb) = @_;
return undef if $self->is_path_ignored($path);
$self->{absent_file}->{$pb->{path}} ||= [];
push @{$self->{absent_file}->{$pb->{path}}}, $path;
undef;
}
sub change_file_prop {
my ($self, $fb, $prop, $value) = @_;
return undef if $self->is_path_ignored($fb->{path});
if ($prop eq 'svn:executable') {
if ($fb->{mode_b} != 120000) {
$fb->{mode_b} = defined $value ? 100755 : 100644;
}
} elsif ($prop eq 'svn:special') {
$fb->{mode_b} = defined $value ? 120000 : 100644;
} else {
$self->{file_prop}->{$fb->{path}} ||= {};
$self->{file_prop}->{$fb->{path}}->{$prop} = $value;
}
undef;
}
sub apply_textdelta {
my ($self, $fb, $exp) = @_;
return undef if $self->is_path_ignored($fb->{path});
my $fh = $::_repository->temp_acquire('svn_delta');
# $fh gets auto-closed() by SVN::TxDelta::apply(),
# (but $base does not,) so dup() it for reading in close_file
open my $dup, '<&', $fh or croak $!;
my $base = $::_repository->temp_acquire('git_blob');
if ($fb->{blob}) {
my ($base_is_link, $size);
if ($fb->{mode_a} eq '120000' &&
! $self->{empty_symlinks}->{$fb->{path}}) {
print $base 'link ' or die "print $!\n";
$base_is_link = 1;
}
retry:
$size = $::_repository->cat_blob($fb->{blob}, $base);
die "Failed to read object $fb->{blob}" if ($size < 0);
if (defined $exp) {
seek $base, 0, 0 or croak $!;
my $got = ::md5sum($base);
if ($got ne $exp) {
my $err = "Checksum mismatch: ".
"$fb->{path} $fb->{blob}\n" .
"expected: $exp\n" .
" got: $got\n";
if ($base_is_link) {
warn $err,
"Retrying... (possibly ",
"a bad symlink from SVN)\n";
$::_repository->temp_reset($base);
$base_is_link = 0;
goto retry;
}
die $err;
}
}
}
seek $base, 0, 0 or croak $!;
$fb->{fh} = $fh;
$fb->{base} = $base;
[ SVN::TxDelta::apply($base, $dup, undef, $fb->{path}, $fb->{pool}) ];
}
sub close_file {
my ($self, $fb, $exp) = @_;
return undef if $self->is_path_ignored($fb->{path});
my $hash;
my $path = $self->git_path($fb->{path});
if (my $fh = $fb->{fh}) {
if (defined $exp) {
seek($fh, 0, 0) or croak $!;
my $got = ::md5sum($fh);
if ($got ne $exp) {
die "Checksum mismatch: $path\n",
"expected: $exp\n got: $got\n";
}
}
if ($fb->{mode_b} == 120000) {
sysseek($fh, 0, 0) or croak $!;
my $rd = sysread($fh, my $buf, 5);
if (!defined $rd) {
croak "sysread: $!\n";
} elsif ($rd == 0) {
warn "$path has mode 120000",
" but it points to nothing\n",
"converting to an empty file with mode",
" 100644\n";
$fb->{mode_b} = '100644';
} elsif ($buf ne 'link ') {
warn "$path has mode 120000",
" but is not a link\n";
} else {
my $tmp_fh = $::_repository->temp_acquire(
'svn_hash');
my $res;
while ($res = sysread($fh, my $str, 1024)) {
my $out = syswrite($tmp_fh, $str, $res);
defined($out) && $out == $res
or croak("write ",
Git::temp_path($tmp_fh),
": $!\n");
}
defined $res or croak $!;
($fh, $tmp_fh) = ($tmp_fh, $fh);
Git::temp_release($tmp_fh, 1);
}
}
$hash = $::_repository->hash_and_insert_object(
Git::temp_path($fh));
$hash =~ /^[a-f\d]{40}$/ or die "not a sha1: $hash\n";
Git::temp_release($fb->{base}, 1);
Git::temp_release($fh, 1);
} else {
$hash = $fb->{blob} or die "no blob information\n";
}
$fb->{pool}->clear;
$self->{gii}->update($fb->{mode_b}, $hash, $path) or croak $!;
print "\t$fb->{action}\t$path\n" if $fb->{action} && ! $::_q;
undef;
}
sub abort_edit {
my $self = shift;
$self->{nr} = $self->{gii}->{nr};
delete $self->{gii};
$self->SUPER::abort_edit(@_);
}
sub close_edit {
my $self = shift;
$self->{git_commit_ok} = 1;
$self->{nr} = $self->{gii}->{nr};
delete $self->{gii};
$self->SUPER::close_edit(@_);
}
package SVN::Git::Editor;
use vars qw/@ISA $_rmdir $_cp_similarity $_find_copies_harder $_rename_limit/;
use strict;
use warnings;
use Carp qw/croak/;
use IO::File;
sub new {
my ($class, $opts) = @_;
foreach (qw/svn_path r ra tree_a tree_b log editor_cb/) {
die "$_ required!\n" unless (defined $opts->{$_});
}
my $pool = SVN::Pool->new;
my $mods = generate_diff($opts->{tree_a}, $opts->{tree_b});
my $types = check_diff_paths($opts->{ra}, $opts->{svn_path},
$opts->{r}, $mods);
# $opts->{ra} functions should not be used after this:
my @ce = $opts->{ra}->get_commit_editor($opts->{log},
$opts->{editor_cb}, $pool);
my $self = SVN::Delta::Editor->new(@ce, $pool);
bless $self, $class;
foreach (qw/svn_path r tree_a tree_b/) {
$self->{$_} = $opts->{$_};
}
$self->{url} = $opts->{ra}->{url};
$self->{mods} = $mods;
$self->{types} = $types;
$self->{pool} = $pool;
$self->{bat} = { '' => $self->open_root($self->{r}, $self->{pool}) };
$self->{rm} = { };
$self->{path_prefix} = length $self->{svn_path} ?
"$self->{svn_path}/" : '';
$self->{config} = $opts->{config};
return $self;
}
sub generate_diff {
my ($tree_a, $tree_b) = @_;
my @diff_tree = qw(diff-tree -z -r);
if ($_cp_similarity) {
push @diff_tree, "-C$_cp_similarity";
} else {
push @diff_tree, '-C';
}
push @diff_tree, '--find-copies-harder' if $_find_copies_harder;
push @diff_tree, "-l$_rename_limit" if defined $_rename_limit;
push @diff_tree, $tree_a, $tree_b;
my ($diff_fh, $ctx) = command_output_pipe(@diff_tree);
local $/ = "\0";
my $state = 'meta';
my @mods;
while (<$diff_fh>) {
chomp $_; # this gets rid of the trailing "\0"
if ($state eq 'meta' && /^:(\d{6})\s(\d{6})\s
($::sha1)\s($::sha1)\s
([MTCRAD])\d*$/xo) {
push @mods, { mode_a => $1, mode_b => $2,
sha1_a => $3, sha1_b => $4,
chg => $5 };
if ($5 =~ /^(?:C|R)$/) {
$state = 'file_a';
} else {
$state = 'file_b';
}
} elsif ($state eq 'file_a') {
my $x = $mods[$#mods] or croak "Empty array\n";
if ($x->{chg} !~ /^(?:C|R)$/) {
croak "Error parsing $_, $x->{chg}\n";
}
$x->{file_a} = $_;
$state = 'file_b';
} elsif ($state eq 'file_b') {
my $x = $mods[$#mods] or croak "Empty array\n";
if (exists $x->{file_a} && $x->{chg} !~ /^(?:C|R)$/) {
croak "Error parsing $_, $x->{chg}\n";
}
if (!exists $x->{file_a} && $x->{chg} =~ /^(?:C|R)$/) {
croak "Error parsing $_, $x->{chg}\n";
}
$x->{file_b} = $_;
$state = 'meta';
} else {
croak "Error parsing $_\n";
}
}
command_close_pipe($diff_fh, $ctx);
\@mods;
}
sub check_diff_paths {
my ($ra, $pfx, $rev, $mods) = @_;
my %types;
$pfx .= '/' if length $pfx;
sub type_diff_paths {
my ($ra, $types, $path, $rev) = @_;
my @p = split m#/+#, $path;
my $c = shift @p;
unless (defined $types->{$c}) {
$types->{$c} = $ra->check_path($c, $rev);
}
while (@p) {
$c .= '/' . shift @p;
next if defined $types->{$c};
$types->{$c} = $ra->check_path($c, $rev);
}
}
foreach my $m (@$mods) {
foreach my $f (qw/file_a file_b/) {
next unless defined $m->{$f};
my ($dir) = ($m->{$f} =~ m#^(.*?)/?(?:[^/]+)$#);
if (length $pfx.$dir && ! defined $types{$dir}) {
type_diff_paths($ra, \%types, $pfx.$dir, $rev);
}
}
}
\%types;
}
sub split_path {
return ($_[0] =~ m#^(.*?)/?([^/]+)$#);
}
sub repo_path {
my ($self, $path) = @_;
$self->{path_prefix}.(defined $path ? $path : '');
}
sub url_path {
my ($self, $path) = @_;
if ($self->{url} =~ m#^https?://#) {
$path =~ s!([^~a-zA-Z0-9_./-])!uc sprintf("%%%02x",ord($1))!eg;
}
$self->{url} . '/' . $self->repo_path($path);
}
sub rmdirs {
my ($self) = @_;
my $rm = $self->{rm};
delete $rm->{''}; # we never delete the url we're tracking
return unless %$rm;
foreach (keys %$rm) {
my @d = split m#/#, $_;
my $c = shift @d;
$rm->{$c} = 1;
while (@d) {
$c .= '/' . shift @d;
$rm->{$c} = 1;
}
}
delete $rm->{$self->{svn_path}};
delete $rm->{''}; # we never delete the url we're tracking
return unless %$rm;
my ($fh, $ctx) = command_output_pipe(qw/ls-tree --name-only -r -z/,
$self->{tree_b});
local $/ = "\0";
while (<$fh>) {
chomp;
my @dn = split m#/#, $_;
while (pop @dn) {
delete $rm->{join '/', @dn};
}
unless (%$rm) {
close $fh;
return;
}
}
command_close_pipe($fh, $ctx);
my ($r, $p, $bat) = ($self->{r}, $self->{pool}, $self->{bat});
foreach my $d (sort { $b =~ tr#/#/# <=> $a =~ tr#/#/# } keys %$rm) {
$self->close_directory($bat->{$d}, $p);
my ($dn) = ($d =~ m#^(.*?)/?(?:[^/]+)$#);
print "\tD+\t$d/\n" unless $::_q;
$self->SUPER::delete_entry($d, $r, $bat->{$dn}, $p);
delete $bat->{$d};
}
}
sub open_or_add_dir {
my ($self, $full_path, $baton) = @_;
my $t = $self->{types}->{$full_path};
if (!defined $t) {
die "$full_path not known in r$self->{r} or we have a bug!\n";
}
{
no warnings 'once';
# SVN::Node::none and SVN::Node::file are used only once,
# so we're shutting up Perl's warnings about them.
if ($t == $SVN::Node::none) {
return $self->add_directory($full_path, $baton,
undef, -1, $self->{pool});
} elsif ($t == $SVN::Node::dir) {
return $self->open_directory($full_path, $baton,
$self->{r}, $self->{pool});
} # no warnings 'once'
print STDERR "$full_path already exists in repository at ",
"r$self->{r} and it is not a directory (",
($t == $SVN::Node::file ? 'file' : 'unknown'),"/$t)\n";
} # no warnings 'once'
exit 1;
}
sub ensure_path {
my ($self, $path) = @_;
my $bat = $self->{bat};
my $repo_path = $self->repo_path($path);
return $bat->{''} unless (length $repo_path);
my @p = split m#/+#, $repo_path;
my $c = shift @p;
$bat->{$c} ||= $self->open_or_add_dir($c, $bat->{''});
while (@p) {
my $c0 = $c;
$c .= '/' . shift @p;
$bat->{$c} ||= $self->open_or_add_dir($c, $bat->{$c0});
}
return $bat->{$c};
}
# Subroutine to convert a globbing pattern to a regular expression.
# From perl cookbook.
sub glob2pat {
my $globstr = shift;
my %patmap = ('*' => '.*', '?' => '.', '[' => '[', ']' => ']');
$globstr =~ s{(.)} { $patmap{$1} || "\Q$1" }ge;
return '^' . $globstr . '$';
}
sub check_autoprop {
my ($self, $pattern, $properties, $file, $fbat) = @_;
# Convert the globbing pattern to a regular expression.
my $regex = glob2pat($pattern);
# Check if the pattern matches the file name.
if($file =~ m/($regex)/) {
# Parse the list of properties to set.
my @props = split(/;/, $properties);
foreach my $prop (@props) {
# Parse 'name=value' syntax and set the property.
if ($prop =~ /([^=]+)=(.*)/) {
my ($n,$v) = ($1,$2);
for ($n, $v) {
s/^\s+//; s/\s+$//;
}
$self->change_file_prop($fbat, $n, $v);
}
}
}
}
sub apply_autoprops {
my ($self, $file, $fbat) = @_;
my $conf_t = ${$self->{config}}{'config'};
no warnings 'once';
# Check [miscellany]/enable-auto-props in svn configuration.
if (SVN::_Core::svn_config_get_bool(
$conf_t,
$SVN::_Core::SVN_CONFIG_SECTION_MISCELLANY,
$SVN::_Core::SVN_CONFIG_OPTION_ENABLE_AUTO_PROPS,
0)) {
# Auto-props are enabled. Enumerate them to look for matches.
my $callback = sub {
$self->check_autoprop($_[0], $_[1], $file, $fbat);
};
SVN::_Core::svn_config_enumerate(
$conf_t,
$SVN::_Core::SVN_CONFIG_SECTION_AUTO_PROPS,
$callback);
}
}
sub A {
my ($self, $m) = @_;
my ($dir, $file) = split_path($m->{file_b});
my $pbat = $self->ensure_path($dir);
my $fbat = $self->add_file($self->repo_path($m->{file_b}), $pbat,
undef, -1);
print "\tA\t$m->{file_b}\n" unless $::_q;
$self->apply_autoprops($file, $fbat);
$self->chg_file($fbat, $m);
$self->close_file($fbat,undef,$self->{pool});
}
sub C {
my ($self, $m) = @_;
my ($dir, $file) = split_path($m->{file_b});
my $pbat = $self->ensure_path($dir);
my $fbat = $self->add_file($self->repo_path($m->{file_b}), $pbat,
$self->url_path($m->{file_a}), $self->{r});
print "\tC\t$m->{file_a} => $m->{file_b}\n" unless $::_q;
$self->chg_file($fbat, $m);
$self->close_file($fbat,undef,$self->{pool});
}
sub delete_entry {
my ($self, $path, $pbat) = @_;
my $rpath = $self->repo_path($path);
my ($dir, $file) = split_path($rpath);
$self->{rm}->{$dir} = 1;
$self->SUPER::delete_entry($rpath, $self->{r}, $pbat, $self->{pool});
}
sub R {
my ($self, $m) = @_;
my ($dir, $file) = split_path($m->{file_b});
my $pbat = $self->ensure_path($dir);
my $fbat = $self->add_file($self->repo_path($m->{file_b}), $pbat,
$self->url_path($m->{file_a}), $self->{r});
print "\tR\t$m->{file_a} => $m->{file_b}\n" unless $::_q;
$self->apply_autoprops($file, $fbat);
$self->chg_file($fbat, $m);
$self->close_file($fbat,undef,$self->{pool});
($dir, $file) = split_path($m->{file_a});
$pbat = $self->ensure_path($dir);
$self->delete_entry($m->{file_a}, $pbat);
}
sub M {
my ($self, $m) = @_;
my ($dir, $file) = split_path($m->{file_b});
my $pbat = $self->ensure_path($dir);
my $fbat = $self->open_file($self->repo_path($m->{file_b}),
$pbat,$self->{r},$self->{pool});
print "\t$m->{chg}\t$m->{file_b}\n" unless $::_q;
$self->chg_file($fbat, $m);
$self->close_file($fbat,undef,$self->{pool});
}
sub T { shift->M(@_) }
sub change_file_prop {
my ($self, $fbat, $pname, $pval) = @_;
$self->SUPER::change_file_prop($fbat, $pname, $pval, $self->{pool});
}
sub _chg_file_get_blob ($$$$) {
my ($self, $fbat, $m, $which) = @_;
my $fh = $::_repository->temp_acquire("git_blob_$which");
if ($m->{"mode_$which"} =~ /^120/) {
print $fh 'link ' or croak $!;
$self->change_file_prop($fbat,'svn:special','*');
} elsif ($m->{mode_a} =~ /^120/ && $m->{"mode_$which"} !~ /^120/) {
$self->change_file_prop($fbat,'svn:special',undef);
}
my $blob = $m->{"sha1_$which"};
return ($fh,) if ($blob =~ /^0{40}$/);
my $size = $::_repository->cat_blob($blob, $fh);
croak "Failed to read object $blob" if ($size < 0);
$fh->flush == 0 or croak $!;
seek $fh, 0, 0 or croak $!;
my $exp = ::md5sum($fh);
seek $fh, 0, 0 or croak $!;
return ($fh, $exp);
}
sub chg_file {
my ($self, $fbat, $m) = @_;
if ($m->{mode_b} =~ /755$/ && $m->{mode_a} !~ /755$/) {
$self->change_file_prop($fbat,'svn:executable','*');
} elsif ($m->{mode_b} !~ /755$/ && $m->{mode_a} =~ /755$/) {
$self->change_file_prop($fbat,'svn:executable',undef);
}
my ($fh_a, $exp_a) = _chg_file_get_blob $self, $fbat, $m, 'a';
my ($fh_b, $exp_b) = _chg_file_get_blob $self, $fbat, $m, 'b';
my $pool = SVN::Pool->new;
my $atd = $self->apply_textdelta($fbat, $exp_a, $pool);
if (-s $fh_a) {
my $txstream = SVN::TxDelta::new ($fh_a, $fh_b, $pool);
my $res = SVN::TxDelta::send_txstream($txstream, @$atd, $pool);
if (defined $res) {
die "Unexpected result from send_txstream: $res\n",
"(SVN::Core::VERSION: $SVN::Core::VERSION)\n";
}
} else {
my $got = SVN::TxDelta::send_stream($fh_b, @$atd, $pool);
die "Checksum mismatch\nexpected: $exp_b\ngot: $got\n"
if ($got ne $exp_b);
}
Git::temp_release($fh_b, 1);
Git::temp_release($fh_a, 1);
$pool->clear;
}
sub D {
my ($self, $m) = @_;
my ($dir, $file) = split_path($m->{file_b});
my $pbat = $self->ensure_path($dir);
print "\tD\t$m->{file_b}\n" unless $::_q;
$self->delete_entry($m->{file_b}, $pbat);
}
sub close_edit {
my ($self) = @_;
my ($p,$bat) = ($self->{pool}, $self->{bat});
foreach (sort { $b =~ tr#/#/# <=> $a =~ tr#/#/# } keys %$bat) {
next if $_ eq '';
$self->close_directory($bat->{$_}, $p);
}
$self->close_directory($bat->{''}, $p);
$self->SUPER::close_edit($p);
$p->clear;
}
sub abort_edit {
my ($self) = @_;
$self->SUPER::abort_edit($self->{pool});
}
sub DESTROY {
my $self = shift;
$self->SUPER::DESTROY(@_);
$self->{pool}->clear;
}
# this drives the editor
sub apply_diff {
my ($self) = @_;
my $mods = $self->{mods};
my %o = ( D => 1, R => 0, C => -1, A => 3, M => 3, T => 3 );
foreach my $m (sort { $o{$a->{chg}} <=> $o{$b->{chg}} } @$mods) {
my $f = $m->{chg};
if (defined $o{$f}) {
$self->$f($m);
} else {
fatal("Invalid change type: $f");
}
}
$self->rmdirs if $_rmdir;
if (@$mods == 0) {
$self->abort_edit;
} else {
$self->close_edit;
}
return scalar @$mods;
}
package Git::SVN::Ra;
use vars qw/@ISA $config_dir $_log_window_size/;
use strict;
use warnings;
my ($ra_invalid, $can_do_switch, %ignored_err, $RA);
BEGIN {
# enforce temporary pool usage for some simple functions
no strict 'refs';
for my $f (qw/rev_proplist get_latest_revnum get_uuid get_repos_root
get_file/) {
my $SUPER = "SUPER::$f";
*$f = sub {
my $self = shift;
my $pool = SVN::Pool->new;
my @ret = $self->$SUPER(@_,$pool);
$pool->clear;
wantarray ? @ret : $ret[0];
};
}
}
sub _auth_providers () {
[
SVN::Client::get_simple_provider(),
SVN::Client::get_ssl_server_trust_file_provider(),
SVN::Client::get_simple_prompt_provider(
\&Git::SVN::Prompt::simple, 2),
SVN::Client::get_ssl_client_cert_file_provider(),
SVN::Client::get_ssl_client_cert_prompt_provider(
\&Git::SVN::Prompt::ssl_client_cert, 2),
SVN::Client::get_ssl_client_cert_pw_file_provider(),
SVN::Client::get_ssl_client_cert_pw_prompt_provider(
\&Git::SVN::Prompt::ssl_client_cert_pw, 2),
SVN::Client::get_username_provider(),
SVN::Client::get_ssl_server_trust_prompt_provider(
\&Git::SVN::Prompt::ssl_server_trust),
SVN::Client::get_username_prompt_provider(
\&Git::SVN::Prompt::username, 2)
]
}
sub escape_uri_only {
my ($uri) = @_;
my @tmp;
foreach (split m{/}, $uri) {
s/([^~\w.%+-]|%(?![a-fA-F0-9]{2}))/sprintf("%%%02X",ord($1))/eg;
push @tmp, $_;
}
join('/', @tmp);
}
sub escape_url {
my ($url) = @_;
if ($url =~ m#^(https?)://([^/]+)(.*)$#) {
my ($scheme, $domain, $uri) = ($1, $2, escape_uri_only($3));
$url = "$scheme://$domain$uri";
}
$url;
}
sub new {
my ($class, $url) = @_;
$url =~ s!/+$!!;
return $RA if ($RA && $RA->{url} eq $url);
::_req_svn();
SVN::_Core::svn_config_ensure($config_dir, undef);
my ($baton, $callbacks) = SVN::Core::auth_open_helper(_auth_providers);
my $config = SVN::Core::config_get_config($config_dir);
$RA = undef;
my $dont_store_passwords = 1;
my $conf_t = ${$config}{'config'};
{
no warnings 'once';
# The usage of $SVN::_Core::SVN_CONFIG_* variables
# produces warnings that variables are used only once.
# I had not found the better way to shut them up, so
# the warnings of type 'once' are disabled in this block.
if (SVN::_Core::svn_config_get_bool($conf_t,
$SVN::_Core::SVN_CONFIG_SECTION_AUTH,
$SVN::_Core::SVN_CONFIG_OPTION_STORE_PASSWORDS,
1) == 0) {
SVN::_Core::svn_auth_set_parameter($baton,
$SVN::_Core::SVN_AUTH_PARAM_DONT_STORE_PASSWORDS,
bless (\$dont_store_passwords, "_p_void"));
}
if (SVN::_Core::svn_config_get_bool($conf_t,
$SVN::_Core::SVN_CONFIG_SECTION_AUTH,
$SVN::_Core::SVN_CONFIG_OPTION_STORE_AUTH_CREDS,
1) == 0) {
$Git::SVN::Prompt::_no_auth_cache = 1;
}
} # no warnings 'once'
my $self = SVN::Ra->new(url => escape_url($url), auth => $baton,
config => $config,
pool => SVN::Pool->new,
auth_provider_callbacks => $callbacks);
$self->{url} = $url;
$self->{svn_path} = $url;
$self->{repos_root} = $self->get_repos_root;
$self->{svn_path} =~ s#^\Q$self->{repos_root}\E(/|$)##;
$self->{cache} = { check_path => { r => 0, data => {} },
get_dir => { r => 0, data => {} } };
$RA = bless $self, $class;
}
sub check_path {
my ($self, $path, $r) = @_;
my $cache = $self->{cache}->{check_path};
if ($r == $cache->{r} && exists $cache->{data}->{$path}) {
return $cache->{data}->{$path};
}
my $pool = SVN::Pool->new;
my $t = $self->SUPER::check_path($path, $r, $pool);
$pool->clear;
if ($r != $cache->{r}) {
%{$cache->{data}} = ();
$cache->{r} = $r;
}
$cache->{data}->{$path} = $t;
}
sub get_dir {
my ($self, $dir, $r) = @_;
my $cache = $self->{cache}->{get_dir};
if ($r == $cache->{r}) {
if (my $x = $cache->{data}->{$dir}) {
return wantarray ? @$x : $x->[0];
}
}
my $pool = SVN::Pool->new;
my ($d, undef, $props) = $self->SUPER::get_dir($dir, $r, $pool);
my %dirents = map { $_ => { kind => $d->{$_}->kind } } keys %$d;
$pool->clear;
if ($r != $cache->{r}) {
%{$cache->{data}} = ();
$cache->{r} = $r;
}
$cache->{data}->{$dir} = [ \%dirents, $r, $props ];
wantarray ? (\%dirents, $r, $props) : \%dirents;
}
sub DESTROY {
# do not call the real DESTROY since we store ourselves in $RA
}
# get_log(paths, start, end, limit,
# discover_changed_paths, strict_node_history, receiver)
sub get_log {
my ($self, @args) = @_;
my $pool = SVN::Pool->new;
# svn_log_changed_path_t objects passed to get_log are likely to be
# overwritten even if only the refs are copied to an external variable,
# so we should dup the structures in their entirety. Using an
# externally passed pool (instead of our temporary and quickly cleared
# pool in Git::SVN::Ra) does not help matters at all...
my $receiver = pop @args;
my $prefix = "/".$self->{svn_path};
$prefix =~ s#/+($)##;
my $prefix_regex = qr#^\Q$prefix\E#;
push(@args, sub {
my ($paths) = $_[0];
return &$receiver(@_) unless $paths;
$_[0] = ();
foreach my $p (keys %$paths) {
my $i = $paths->{$p};
# Make path relative to our url, not repos_root
$p =~ s/$prefix_regex//;
my %s = map { $_ => $i->$_; }
qw/copyfrom_path copyfrom_rev action/;
if ($s{'copyfrom_path'}) {
$s{'copyfrom_path'} =~ s/$prefix_regex//;
}
$_[0]{$p} = \%s;
}
&$receiver(@_);
});
# the limit parameter was not supported in SVN 1.1.x, so we
# drop it. Therefore, the receiver callback passed to it
# is made aware of this limitation by being wrapped if
# the limit passed to is being wrapped.
if ($SVN::Core::VERSION le '1.2.0') {
my $limit = splice(@args, 3, 1);
if ($limit > 0) {
my $receiver = pop @args;
push(@args, sub { &$receiver(@_) if (--$limit >= 0) });
}
}
my $ret = $self->SUPER::get_log(@args, $pool);
$pool->clear;
$ret;
}
sub trees_match {
my ($self, $url1, $rev1, $url2, $rev2) = @_;
my $ctx = SVN::Client->new(auth => _auth_providers);
my $out = IO::File->new_tmpfile;
# older SVN (1.1.x) doesn't take $pool as the last parameter for
# $ctx->diff(), so we'll create a default one
my $pool = SVN::Pool->new_default_sub;
$ra_invalid = 1; # this will open a new SVN::Ra connection to $url1
$ctx->diff([], $url1, $rev1, $url2, $rev2, 1, 1, 0, $out, $out);
$out->flush;
my $ret = (($out->stat)[7] == 0);
close $out or croak $!;
$ret;
}
sub get_commit_editor {
my ($self, $log, $cb, $pool) = @_;
my @lock = $SVN::Core::VERSION ge '1.2.0' ? (undef, 0) : ();
$self->SUPER::get_commit_editor($log, $cb, @lock, $pool);
}
sub gs_do_update {
my ($self, $rev_a, $rev_b, $gs, $editor) = @_;
my $new = ($rev_a == $rev_b);
my $path = $gs->{path};
if ($new && -e $gs->{index}) {
unlink $gs->{index} or die
"Couldn't unlink index: $gs->{index}: $!\n";
}
my $pool = SVN::Pool->new;
$editor->set_path_strip($path);
my (@pc) = split m#/#, $path;
my $reporter = $self->do_update($rev_b, (@pc ? shift @pc : ''),
1, $editor, $pool);
my @lock = $SVN::Core::VERSION ge '1.2.0' ? (undef) : ();
# Since we can't rely on svn_ra_reparent being available, we'll
# just have to do some magic with set_path to make it so
# we only want a partial path.
my $sp = '';
my $final = join('/', @pc);
while (@pc) {
$reporter->set_path($sp, $rev_b, 0, @lock, $pool);
$sp .= '/' if length $sp;
$sp .= shift @pc;
}
die "BUG: '$sp' != '$final'\n" if ($sp ne $final);
$reporter->set_path($sp, $rev_a, $new, @lock, $pool);
$reporter->finish_report($pool);
$pool->clear;
$editor->{git_commit_ok};
}
# this requires SVN 1.4.3 or later (do_switch didn't work before 1.4.3, and
# svn_ra_reparent didn't work before 1.4)
sub gs_do_switch {
my ($self, $rev_a, $rev_b, $gs, $url_b, $editor) = @_;
my $path = $gs->{path};
my $pool = SVN::Pool->new;
my $full_url = $self->{url};
my $old_url = $full_url;
$full_url .= '/' . $path if length $path;
my ($ra, $reparented);
if ($old_url =~ m#^svn(\+ssh)?://# ||
($full_url =~ m#^https?://# &&
escape_url($full_url) ne $full_url)) {
$_[0] = undef;
$self = undef;
$RA = undef;
$ra = Git::SVN::Ra->new($full_url);
$ra_invalid = 1;
} elsif ($old_url ne $full_url) {
SVN::_Ra::svn_ra_reparent($self->{session}, $full_url, $pool);
$self->{url} = $full_url;
$reparented = 1;
}
$ra ||= $self;
$url_b = escape_url($url_b);
my $reporter = $ra->do_switch($rev_b, '', 1, $url_b, $editor, $pool);
my @lock = $SVN::Core::VERSION ge '1.2.0' ? (undef) : ();
$reporter->set_path('', $rev_a, 0, @lock, $pool);
$reporter->finish_report($pool);
if ($reparented) {
SVN::_Ra::svn_ra_reparent($self->{session}, $old_url, $pool);
$self->{url} = $old_url;
}
$pool->clear;
$editor->{git_commit_ok};
}
sub longest_common_path {
my ($gsv, $globs) = @_;
my %common;
my $common_max = scalar @$gsv;
foreach my $gs (@$gsv) {
my @tmp = split m#/#, $gs->{path};
my $p = '';
foreach (@tmp) {
$p .= length($p) ? "/$_" : $_;
$common{$p} ||= 0;
$common{$p}++;
}
}
$globs ||= [];
$common_max += scalar @$globs;
foreach my $glob (@$globs) {
my @tmp = split m#/#, $glob->{path}->{left};
my $p = '';
foreach (@tmp) {
$p .= length($p) ? "/$_" : $_;
$common{$p} ||= 0;
$common{$p}++;
}
}
my $longest_path = '';
foreach (sort {length $b <=> length $a} keys %common) {
if ($common{$_} == $common_max) {
$longest_path = $_;
last;
}
}
$longest_path;
}
sub gs_fetch_loop_common {
my ($self, $base, $head, $gsv, $globs) = @_;
return if ($base > $head);
my $inc = $_log_window_size;
my ($min, $max) = ($base, $head < $base + $inc ? $head : $base + $inc);
my $longest_path = longest_common_path($gsv, $globs);
my $ra_url = $self->{url};
my $find_trailing_edge;
while (1) {
my %revs;
my $err;
my $err_handler = $SVN::Error::handler;
$SVN::Error::handler = sub {
($err) = @_;
skip_unknown_revs($err);
};
sub _cb {
my ($paths, $r, $author, $date, $log) = @_;
[ $paths,
{ author => $author, date => $date, log => $log } ];
}
$self->get_log([$longest_path], $min, $max, 0, 1, 1,
sub { $revs{$_[1]} = _cb(@_) });
if ($err) {
print "Checked through r$max\r";
} else {
$find_trailing_edge = 1;
}
if ($err and $find_trailing_edge) {
print STDERR "Path '$longest_path' ",
"was probably deleted:\n",
$err->expanded_message,
"\nWill attempt to follow ",
"revisions r$min .. r$max ",
"committed before the deletion\n";
my $hi = $max;
while (--$hi >= $min) {
my $ok;
$self->get_log([$longest_path], $min, $hi,
0, 1, 1, sub {
$ok = $_[1];
$revs{$_[1]} = _cb(@_) });
if ($ok) {
print STDERR "r$min .. r$ok OK\n";
last;
}
}
$find_trailing_edge = 0;
}
$SVN::Error::handler = $err_handler;
my %exists = map { $_->{path} => $_ } @$gsv;
foreach my $r (sort {$a <=> $b} keys %revs) {
my ($paths, $logged) = @{$revs{$r}};
foreach my $gs ($self->match_globs(\%exists, $paths,
$globs, $r)) {
if ($gs->rev_map_max >= $r) {
next;
}
next unless $gs->match_paths($paths, $r);
$gs->{logged_rev_props} = $logged;
if (my $last_commit = $gs->last_commit) {
$gs->assert_index_clean($last_commit);
}
my $log_entry = $gs->do_fetch($paths, $r);
if ($log_entry) {
$gs->do_git_commit($log_entry);
}
$INDEX_FILES{$gs->{index}} = 1;
}
foreach my $g (@$globs) {
my $k = "svn-remote.$g->{remote}." .
"$g->{t}-maxRev";
Git::SVN::tmp_config($k, $r);
}
if ($ra_invalid) {
$_[0] = undef;
$self = undef;
$RA = undef;
$self = Git::SVN::Ra->new($ra_url);
$ra_invalid = undef;
}
}
# pre-fill the .rev_db since it'll eventually get filled in
# with '0' x40 if something new gets committed
foreach my $gs (@$gsv) {
next if $gs->rev_map_max >= $max;
next if defined $gs->rev_map_get($max);
$gs->rev_map_set($max, 0 x40);
}
foreach my $g (@$globs) {
my $k = "svn-remote.$g->{remote}.$g->{t}-maxRev";
Git::SVN::tmp_config($k, $max);
}
last if $max >= $head;
$min = $max + 1;
$max += $inc;
$max = $head if ($max > $head);
}
Git::SVN::gc();
}
sub get_dir_globbed {
my ($self, $left, $depth, $r) = @_;
my @x = eval { $self->get_dir($left, $r) };
return unless scalar @x == 3;
my $dirents = $x[0];
my @finalents;
foreach my $de (keys %$dirents) {
next if $dirents->{$de}->{kind} != $SVN::Node::dir;
if ($depth > 1) {
my @args = ("$left/$de", $depth - 1, $r);
foreach my $dir ($self->get_dir_globbed(@args)) {
push @finalents, "$de/$dir";
}
} else {
push @finalents, $de;
}
}
@finalents;
}
sub match_globs {
my ($self, $exists, $paths, $globs, $r) = @_;
sub get_dir_check {
my ($self, $exists, $g, $r) = @_;
my @dirs = $self->get_dir_globbed($g->{path}->{left},
$g->{path}->{depth},
$r);
foreach my $de (@dirs) {
my $p = $g->{path}->full_path($de);
next if $exists->{$p};
next if (length $g->{path}->{right} &&
($self->check_path($p, $r) !=
$SVN::Node::dir));
next unless $p =~ /$g->{path}->{regex}/;
$exists->{$p} = Git::SVN->init($self->{url}, $p, undef,
$g->{ref}->full_path($de), 1);
}
}
foreach my $g (@$globs) {
if (my $path = $paths->{"/$g->{path}->{left}"}) {
if ($path->{action} =~ /^[AR]$/) {
get_dir_check($self, $exists, $g, $r);
}
}
foreach (keys %$paths) {
if (/$g->{path}->{left_regex}/ &&
!/$g->{path}->{regex}/) {
next if $paths->{$_}->{action} !~ /^[AR]$/;
get_dir_check($self, $exists, $g, $r);
}
next unless /$g->{path}->{regex}/;
my $p = $1;
my $pathname = $g->{path}->full_path($p);
next if $exists->{$pathname};
next if ($self->check_path($pathname, $r) !=
$SVN::Node::dir);
$exists->{$pathname} = Git::SVN->init(
$self->{url}, $pathname, undef,
$g->{ref}->full_path($p), 1);
}
my $c = '';
foreach (split m#/#, $g->{path}->{left}) {
$c .= "/$_";
next unless ($paths->{$c} &&
($paths->{$c}->{action} =~ /^[AR]$/));
get_dir_check($self, $exists, $g, $r);
}
}
values %$exists;
}
sub minimize_url {
my ($self) = @_;
return $self->{url} if ($self->{url} eq $self->{repos_root});
my $url = $self->{repos_root};
my @components = split(m!/!, $self->{svn_path});
my $c = '';
do {
$url .= "/$c" if length $c;
eval {
my $ra = (ref $self)->new($url);
my $latest = $ra->get_latest_revnum;
$ra->get_log("", $latest, 0, 1, 0, 1, sub {});
};
} while ($@ && ($c = shift @components));
$url;
}
sub can_do_switch {
my $self = shift;
unless (defined $can_do_switch) {
my $pool = SVN::Pool->new;
my $rep = eval {
$self->do_switch(1, '', 0, $self->{url},
SVN::Delta::Editor->new, $pool);
};
if ($@) {
$can_do_switch = 0;
} else {
$rep->abort_report($pool);
$can_do_switch = 1;
}
$pool->clear;
}
$can_do_switch;
}
sub skip_unknown_revs {
my ($err) = @_;
my $errno = $err->apr_err();
# Maybe the branch we're tracking didn't
# exist when the repo started, so it's
# not an error if it doesn't, just continue
#
# Wonderfully consistent library, eh?
# 160013 - svn:// and file://
# 175002 - http(s)://
# 175007 - http(s):// (this repo required authorization, too...)
# More codes may be discovered later...
if ($errno == 175007 || $errno == 175002 || $errno == 160013) {
my $err_key = $err->expanded_message;
# revision numbers change every time, filter them out
$err_key =~ s/\d+/\0/g;
$err_key = "$errno\0$err_key";
unless ($ignored_err{$err_key}) {
warn "W: Ignoring error from SVN, path probably ",
"does not exist: ($errno): ",
$err->expanded_message,"\n";
warn "W: Do not be alarmed at the above message ",
"git-svn is just searching aggressively for ",
"old history.\n",
"This may take a while on large repositories\n";
$ignored_err{$err_key} = 1;
}
return;
}
die "Error from SVN, ($errno): ", $err->expanded_message,"\n";
}
package Git::SVN::Log;
use strict;
use warnings;
use POSIX qw/strftime/;
use Time::Local;
use constant commit_log_separator => ('-' x 72) . "\n";
use vars qw/$TZ $limit $color $pager $non_recursive $verbose $oneline
%rusers $show_commit $incremental/;
my $l_fmt;
sub cmt_showable {
my ($c) = @_;
return 1 if defined $c->{r};
# big commit message got truncated by the 16k pretty buffer in rev-list
if ($c->{l} && $c->{l}->[-1] eq "...\n" &&
$c->{a_raw} =~ /\@([a-f\d\-]+)>$/) {
@{$c->{l}} = ();
my @log = command(qw/cat-file commit/, $c->{c});
# shift off the headers
shift @log while ($log[0] ne '');
shift @log;
# TODO: make $c->{l} not have a trailing newline in the future
@{$c->{l}} = map { "$_\n" } grep !/^git-svn-id: /, @log;
(undef, $c->{r}, undef) = ::extract_metadata(
(grep(/^git-svn-id: /, @log))[-1]);
}
return defined $c->{r};
}
sub log_use_color {
return $color || Git->repository->get_colorbool('color.diff');
}
sub git_svn_log_cmd {
my ($r_min, $r_max, @args) = @_;
my $head = 'HEAD';
my (@files, @log_opts);
foreach my $x (@args) {
if ($x eq '--' || @files) {
push @files, $x;
} else {
if (::verify_ref("$x^0")) {
$head = $x;
} else {
push @log_opts, $x;
}
}
}
my ($url, $rev, $uuid, $gs) = ::working_head_info($head);
$gs ||= Git::SVN->_new;
my @cmd = (qw/log --abbrev-commit --pretty=raw --default/,
$gs->refname);
push @cmd, '-r' unless $non_recursive;
push @cmd, qw/--raw --name-status/ if $verbose;
push @cmd, '--color' if log_use_color();
push @cmd, @log_opts;
if (defined $r_max && $r_max == $r_min) {
push @cmd, '--max-count=1';
if (my $c = $gs->rev_map_get($r_max)) {
push @cmd, $c;
}
} elsif (defined $r_max) {
if ($r_max < $r_min) {
($r_min, $r_max) = ($r_max, $r_min);
}
my (undef, $c_max) = $gs->find_rev_before($r_max, 1, $r_min);
my (undef, $c_min) = $gs->find_rev_after($r_min, 1, $r_max);
# If there are no commits in the range, both $c_max and $c_min
# will be undefined. If there is at least 1 commit in the
# range, both will be defined.
return () if !defined $c_min || !defined $c_max;
if ($c_min eq $c_max) {
push @cmd, '--max-count=1', $c_min;
} else {
push @cmd, '--boundary', "$c_min..$c_max";
}
}
return (@cmd, @files);
}
# adapted from pager.c
sub config_pager {
if (! -t *STDOUT) {
$ENV{GIT_PAGER_IN_USE} = 'false';
$pager = undef;
return;
}
chomp($pager = command_oneline(qw(var GIT_PAGER)));
if ($pager eq 'cat') {
$pager = undef;
}
$ENV{GIT_PAGER_IN_USE} = defined($pager);
}
sub run_pager {
return unless defined $pager;
pipe my ($rfd, $wfd) or return;
defined(my $pid = fork) or ::fatal "Can't fork: $!";
if (!$pid) {
open STDOUT, '>&', $wfd or
::fatal "Can't redirect to stdout: $!";
return;
}
open STDIN, '<&', $rfd or ::fatal "Can't redirect stdin: $!";
$ENV{LESS} ||= 'FRSX';
exec $pager or ::fatal "Can't run pager: $! ($pager)";
}
sub format_svn_date {
# some systmes don't handle or mishandle %z, so be creative.
my $t = shift || time;
my $gm = timelocal(gmtime($t));
my $sign = qw( + + - )[ $t <=> $gm ];
my $gmoff = sprintf("%s%02d%02d", $sign, (gmtime(abs($t - $gm)))[2,1]);
return strftime("%Y-%m-%d %H:%M:%S $gmoff (%a, %d %b %Y)", localtime($t));
}
sub parse_git_date {
my ($t, $tz) = @_;
# Date::Parse isn't in the standard Perl distro :(
if ($tz =~ s/^\+//) {
$t += tz_to_s_offset($tz);
} elsif ($tz =~ s/^\-//) {
$t -= tz_to_s_offset($tz);
}
return $t;
}
sub set_local_timezone {
if (defined $TZ) {
$ENV{TZ} = $TZ;
} else {
delete $ENV{TZ};
}
}
sub tz_to_s_offset {
my ($tz) = @_;
$tz =~ s/(\d\d)$//;
return ($1 * 60) + ($tz * 3600);
}
sub get_author_info {
my ($dest, $author, $t, $tz) = @_;
$author =~ s/(?:^\s*|\s*$)//g;
$dest->{a_raw} = $author;
my $au;
if ($::_authors) {
$au = $rusers{$author} || undef;
}
if (!$au) {
($au) = ($author =~ /<([^>]+)\@[^>]+>$/);
}
$dest->{t} = $t;
$dest->{tz} = $tz;
$dest->{a} = $au;
$dest->{t_utc} = parse_git_date($t, $tz);
}
sub process_commit {
my ($c, $r_min, $r_max, $defer) = @_;
if (defined $r_min && defined $r_max) {
if ($r_min == $c->{r} && $r_min == $r_max) {
show_commit($c);
return 0;
}
return 1 if $r_min == $r_max;
if ($r_min < $r_max) {
# we need to reverse the print order
return 0 if (defined $limit && --$limit < 0);
push @$defer, $c;
return 1;
}
if ($r_min != $r_max) {
return 1 if ($r_min < $c->{r});
return 1 if ($r_max > $c->{r});
}
}
return 0 if (defined $limit && --$limit < 0);
show_commit($c);
return 1;
}
sub show_commit {
my $c = shift;
if ($oneline) {
my $x = "\n";
if (my $l = $c->{l}) {
while ($l->[0] =~ /^\s*$/) { shift @$l }
$x = $l->[0];
}
$l_fmt ||= 'A' . length($c->{r});
print 'r',pack($l_fmt, $c->{r}),' | ';
print "$c->{c} | " if $show_commit;
print $x;
} else {
show_commit_normal($c);
}
}
sub show_commit_changed_paths {
my ($c) = @_;
return unless $c->{changed};
print "Changed paths:\n", @{$c->{changed}};
}
sub show_commit_normal {
my ($c) = @_;
print commit_log_separator, "r$c->{r} | ";
print "$c->{c} | " if $show_commit;
print "$c->{a} | ", format_svn_date($c->{t_utc}), ' | ';
my $nr_line = 0;
if (my $l = $c->{l}) {
while ($l->[$#$l] eq "\n" && $#$l > 0
&& $l->[($#$l - 1)] eq "\n") {
pop @$l;
}
$nr_line = scalar @$l;
if (!$nr_line) {
print "1 line\n\n\n";
} else {
if ($nr_line == 1) {
$nr_line = '1 line';
} else {
$nr_line .= ' lines';
}
print $nr_line, "\n";
show_commit_changed_paths($c);
print "\n";
print $_ foreach @$l;
}
} else {
print "1 line\n";
show_commit_changed_paths($c);
print "\n";
}
foreach my $x (qw/raw stat diff/) {
if ($c->{$x}) {
print "\n";
print $_ foreach @{$c->{$x}}
}
}
}
sub cmd_show_log {
my (@args) = @_;
my ($r_min, $r_max);
my $r_last = -1; # prevent dupes
set_local_timezone();
if (defined $::_revision) {
if ($::_revision =~ /^(\d+):(\d+)$/) {
($r_min, $r_max) = ($1, $2);
} elsif ($::_revision =~ /^\d+$/) {
$r_min = $r_max = $::_revision;
} else {
::fatal "-r$::_revision is not supported, use ",
"standard 'git log' arguments instead";
}
}
config_pager();
@args = git_svn_log_cmd($r_min, $r_max, @args);
if (!@args) {
print commit_log_separator unless $incremental || $oneline;
return;
}
my $log = command_output_pipe(@args);
run_pager();
my (@k, $c, $d, $stat);
my $esc_color = qr/(?:\033\[(?:(?:\d+;)*\d*)?m)*/;
while (<$log>) {
if (/^${esc_color}commit -?($::sha1_short)/o) {
my $cmt = $1;
if ($c && cmt_showable($c) && $c->{r} != $r_last) {
$r_last = $c->{r};
process_commit($c, $r_min, $r_max, \@k) or
goto out;
}
$d = undef;
$c = { c => $cmt };
} elsif (/^${esc_color}author (.+) (\d+) ([\-\+]?\d+)$/o) {
get_author_info($c, $1, $2, $3);
} elsif (/^${esc_color}(?:tree|parent|committer) /o) {
# ignore
} elsif (/^${esc_color}:\d{6} \d{6} $::sha1_short/o) {
push @{$c->{raw}}, $_;
} elsif (/^${esc_color}[ACRMDT]\t/) {
# we could add $SVN->{svn_path} here, but that requires
# remote access at the moment (repo_path_split)...
s#^(${esc_color})([ACRMDT])\t#$1 $2 #o;
push @{$c->{changed}}, $_;
} elsif (/^${esc_color}diff /o) {
$d = 1;
push @{$c->{diff}}, $_;
} elsif ($d) {
push @{$c->{diff}}, $_;
} elsif (/^\ .+\ \|\s*\d+\ $esc_color[\+\-]*
$esc_color*[\+\-]*$esc_color$/x) {
$stat = 1;
push @{$c->{stat}}, $_;
} elsif ($stat && /^ \d+ files changed, \d+ insertions/) {
push @{$c->{stat}}, $_;
$stat = undef;
} elsif (/^${esc_color} (git-svn-id:.+)$/o) {
($c->{url}, $c->{r}, undef) = ::extract_metadata($1);
} elsif (s/^${esc_color} //o) {
push @{$c->{l}}, $_;
}
}
if ($c && defined $c->{r} && $c->{r} != $r_last) {
$r_last = $c->{r};
process_commit($c, $r_min, $r_max, \@k);
}
if (@k) {
($r_min, $r_max) = ($r_max, $r_min);
process_commit($_, $r_min, $r_max) foreach reverse @k;
}
out:
close $log;
print commit_log_separator unless $incremental || $oneline;
}
sub cmd_blame {
my $path = pop;
config_pager();
run_pager();
my ($fh, $ctx, $rev);
if ($_git_format) {
($fh, $ctx) = command_output_pipe('blame', @_, $path);
while (my $line = <$fh>) {
if ($line =~ /^\^?([[:xdigit:]]+)\s/) {
# Uncommitted edits show up as a rev ID of
# all zeros, which we can't look up with
# cmt_metadata
if ($1 !~ /^0+$/) {
(undef, $rev, undef) =
::cmt_metadata($1);
$rev = '0' if (!$rev);
} else {
$rev = '0';
}
$rev = sprintf('%-10s', $rev);
$line =~ s/^\^?[[:xdigit:]]+(\s)/$rev$1/;
}
print $line;
}
} else {
($fh, $ctx) = command_output_pipe('blame', '-p', @_, 'HEAD',
'--', $path);
my ($sha1);
my %authors;
my @buffer;
my %dsha; #distinct sha keys
while (my $line = <$fh>) {
push @buffer, $line;
if ($line =~ /^([[:xdigit:]]{40})\s\d+\s\d+/) {
$dsha{$1} = 1;
}
}
my $s2r = ::cmt_sha2rev_batch([keys %dsha]);
foreach my $line (@buffer) {
if ($line =~ /^([[:xdigit:]]{40})\s\d+\s\d+/) {
$rev = $s2r->{$1};
$rev = '0' if (!$rev)
}
elsif ($line =~ /^author (.*)/) {
$authors{$rev} = $1;
$authors{$rev} =~ s/\s/_/g;
}
elsif ($line =~ /^\t(.*)$/) {
printf("%6s %10s %s\n", $rev, $authors{$rev}, $1);
}
}
}
command_close_pipe($fh, $ctx);
}
package Git::SVN::Migration;
# these version numbers do NOT correspond to actual version numbers
# of git nor git-svn. They are just relative.
#
# v0 layout: .git/$id/info/url, refs/heads/$id-HEAD
#
# v1 layout: .git/$id/info/url, refs/remotes/$id
#
# v2 layout: .git/svn/$id/info/url, refs/remotes/$id
#
# v3 layout: .git/svn/$id, refs/remotes/$id
# - info/url may remain for backwards compatibility
# - this is what we migrate up to this layout automatically,
# - this will be used by git svn init on single branches
# v3.1 layout (auto migrated):
# - .rev_db => .rev_db.$UUID, .rev_db will remain as a symlink
# for backwards compatibility
#
# v4 layout: .git/svn/$repo_id/$id, refs/remotes/$repo_id/$id
# - this is only created for newly multi-init-ed
# repositories. Similar in spirit to the
# --use-separate-remotes option in git-clone (now default)
# - we do not automatically migrate to this (following
# the example set by core git)
#
# v5 layout: .rev_db.$UUID => .rev_map.$UUID
# - newer, more-efficient format that uses 24-bytes per record
# with no filler space.
# - use xxd -c24 < .rev_map.$UUID to view and debug
# - This is a one-way migration, repositories updated to the
# new format will not be able to use old git-svn without
# rebuilding the .rev_db. Rebuilding the rev_db is not
# possible if noMetadata or useSvmProps are set; but should
# be no problem for users that use the (sensible) defaults.
use strict;
use warnings;
use Carp qw/croak/;
use File::Path qw/mkpath/;
use File::Basename qw/dirname basename/;
use vars qw/$_minimize/;
sub migrate_from_v0 {
my $git_dir = $ENV{GIT_DIR};
return undef unless -d $git_dir;
my ($fh, $ctx) = command_output_pipe(qw/rev-parse --symbolic --all/);
my $migrated = 0;
while (<$fh>) {
chomp;
my ($id, $orig_ref) = ($_, $_);
next unless $id =~ s#^refs/heads/(.+)-HEAD$#$1#;
next unless -f "$git_dir/$id/info/url";
my $new_ref = "refs/remotes/$id";
if (::verify_ref("$new_ref^0")) {
print STDERR "W: $orig_ref is probably an old ",
"branch used by an ancient version of ",
"git-svn.\n",
"However, $new_ref also exists.\n",
"We will not be able ",
"to use this branch until this ",
"ambiguity is resolved.\n";
next;
}
print STDERR "Migrating from v0 layout...\n" if !$migrated;
print STDERR "Renaming ref: $orig_ref => $new_ref\n";
command_noisy('update-ref', $new_ref, $orig_ref);
command_noisy('update-ref', '-d', $orig_ref, $orig_ref);
$migrated++;
}
command_close_pipe($fh, $ctx);
print STDERR "Done migrating from v0 layout...\n" if $migrated;
$migrated;
}
sub migrate_from_v1 {
my $git_dir = $ENV{GIT_DIR};
my $migrated = 0;
return $migrated unless -d $git_dir;
my $svn_dir = "$git_dir/svn";
# just in case somebody used 'svn' as their $id at some point...
return $migrated if -d $svn_dir && ! -f "$svn_dir/info/url";
print STDERR "Migrating from a git-svn v1 layout...\n";
mkpath([$svn_dir]);
print STDERR "Data from a previous version of git-svn exists, but\n\t",
"$svn_dir\n\t(required for this version ",
"($::VERSION) of git-svn) does not exist.\n";
my ($fh, $ctx) = command_output_pipe(qw/rev-parse --symbolic --all/);
while (<$fh>) {
my $x = $_;
next unless $x =~ s#^refs/remotes/##;
chomp $x;
next unless -f "$git_dir/$x/info/url";
my $u = eval { ::file_to_s("$git_dir/$x/info/url") };
next unless $u;
my $dn = dirname("$git_dir/svn/$x");
mkpath([$dn]) unless -d $dn;
if ($x eq 'svn') { # they used 'svn' as GIT_SVN_ID:
mkpath(["$git_dir/svn/svn"]);
print STDERR " - $git_dir/$x/info => ",
"$git_dir/svn/$x/info\n";
rename "$git_dir/$x/info", "$git_dir/svn/$x/info" or
croak "$!: $x";
# don't worry too much about these, they probably
# don't exist with repos this old (save for index,
# and we can easily regenerate that)
foreach my $f (qw/unhandled.log index .rev_db/) {
rename "$git_dir/$x/$f", "$git_dir/svn/$x/$f";
}
} else {
print STDERR " - $git_dir/$x => $git_dir/svn/$x\n";
rename "$git_dir/$x", "$git_dir/svn/$x" or
croak "$!: $x";
}
$migrated++;
}
command_close_pipe($fh, $ctx);
print STDERR "Done migrating from a git-svn v1 layout\n";
$migrated;
}
sub read_old_urls {
my ($l_map, $pfx, $path) = @_;
my @dir;
foreach (<$path/*>) {
if (-r "$_/info/url") {
$pfx .= '/' if $pfx && $pfx !~ m!/$!;
my $ref_id = $pfx . basename $_;
my $url = ::file_to_s("$_/info/url");
$l_map->{$ref_id} = $url;
} elsif (-d $_) {
push @dir, $_;
}
}
foreach (@dir) {
my $x = $_;
$x =~ s!^\Q$ENV{GIT_DIR}\E/svn/!!o;
read_old_urls($l_map, $x, $_);
}
}
sub migrate_from_v2 {
my @cfg = command(qw/config -l/);
return if grep /^svn-remote\..+\.url=/, @cfg;
my %l_map;
read_old_urls(\%l_map, '', "$ENV{GIT_DIR}/svn");
my $migrated = 0;
foreach my $ref_id (sort keys %l_map) {
eval { Git::SVN->init($l_map{$ref_id}, '', undef, $ref_id) };
if ($@) {
Git::SVN->init($l_map{$ref_id}, '', $ref_id, $ref_id);
}
$migrated++;
}
$migrated;
}
sub minimize_connections {
my $r = Git::SVN::read_all_remotes();
my $new_urls = {};
my $root_repos = {};
foreach my $repo_id (keys %$r) {
my $url = $r->{$repo_id}->{url} or next;
my $fetch = $r->{$repo_id}->{fetch} or next;
my $ra = Git::SVN::Ra->new($url);
# skip existing cases where we already connect to the root
if (($ra->{url} eq $ra->{repos_root}) ||
($ra->{repos_root} eq $repo_id)) {
$root_repos->{$ra->{url}} = $repo_id;
next;
}
my $root_ra = Git::SVN::Ra->new($ra->{repos_root});
my $root_path = $ra->{url};
$root_path =~ s#^\Q$ra->{repos_root}\E(/|$)##;
foreach my $path (keys %$fetch) {
my $ref_id = $fetch->{$path};
my $gs = Git::SVN->new($ref_id, $repo_id, $path);
# make sure we can read when connecting to
# a higher level of a repository
my ($last_rev, undef) = $gs->last_rev_commit;
if (!defined $last_rev) {
$last_rev = eval {
$root_ra->get_latest_revnum;
};
next if $@;
}
my $new = $root_path;
$new .= length $path ? "/$path" : '';
eval {
$root_ra->get_log([$new], $last_rev, $last_rev,
0, 0, 1, sub { });
};
next if $@;
$new_urls->{$ra->{repos_root}}->{$new} =
{ ref_id => $ref_id,
old_repo_id => $repo_id,
old_path => $path };
}
}
my @emptied;
foreach my $url (keys %$new_urls) {
# see if we can re-use an existing [svn-remote "repo_id"]
# instead of creating a(n ugly) new section:
my $repo_id = $root_repos->{$url} || $url;
my $fetch = $new_urls->{$url};
foreach my $path (keys %$fetch) {
my $x = $fetch->{$path};
Git::SVN->init($url, $path, $repo_id, $x->{ref_id});
my $pfx = "svn-remote.$x->{old_repo_id}";
my $old_fetch = quotemeta("$x->{old_path}:".
"$x->{ref_id}");
command_noisy(qw/config --unset/,
"$pfx.fetch", '^'. $old_fetch . '$');
delete $r->{$x->{old_repo_id}}->
{fetch}->{$x->{old_path}};
if (!keys %{$r->{$x->{old_repo_id}}->{fetch}}) {
command_noisy(qw/config --unset/,
"$pfx.url");
push @emptied, $x->{old_repo_id}
}
}
}
if (@emptied) {
my $file = $ENV{GIT_CONFIG} || "$ENV{GIT_DIR}/config";
print STDERR <<EOF;
The following [svn-remote] sections in your config file ($file) are empty
and can be safely removed:
EOF
print STDERR "[svn-remote \"$_\"]\n" foreach @emptied;
}
}
sub migration_check {
migrate_from_v0();
migrate_from_v1();
migrate_from_v2();
minimize_connections() if $_minimize;
}
package Git::IndexInfo;
use strict;
use warnings;
use Git qw/command_input_pipe command_close_pipe/;
sub new {
my ($class) = @_;
my ($gui, $ctx) = command_input_pipe(qw/update-index -z --index-info/);
bless { gui => $gui, ctx => $ctx, nr => 0}, $class;
}
sub remove {
my ($self, $path) = @_;
if (print { $self->{gui} } '0 ', 0 x 40, "\t", $path, "\0") {
return ++$self->{nr};
}
undef;
}
sub update {
my ($self, $mode, $hash, $path) = @_;
if (print { $self->{gui} } $mode, ' ', $hash, "\t", $path, "\0") {
return ++$self->{nr};
}
undef;
}
sub DESTROY {
my ($self) = @_;
command_close_pipe($self->{gui}, $self->{ctx});
}
package Git::SVN::GlobSpec;
use strict;
use warnings;
sub new {
my ($class, $glob, $pattern_ok) = @_;
my $re = $glob;
$re =~ s!/+$!!g; # no need for trailing slashes
my (@left, @right, @patterns);
my $state = "left";
my $die_msg = "Only one set of wildcard directories " .
"(e.g. '*' or '*/*/*') is supported: '$glob'\n";
for my $part (split(m|/|, $glob)) {
if ($part =~ /\*/ && $part ne "*") {
die "Invalid pattern in '$glob': $part\n";
} elsif ($pattern_ok && $part =~ /[{}]/ &&
$part !~ /^\{[^{}]+\}/) {
die "Invalid pattern in '$glob': $part\n";
}
if ($part eq "*") {
die $die_msg if $state eq "right";
$state = "pattern";
push(@patterns, "[^/]*");
} elsif ($pattern_ok && $part =~ /^\{(.*)\}$/) {
die $die_msg if $state eq "right";
$state = "pattern";
my $p = quotemeta($1);
$p =~ s/\\,/|/g;
push(@patterns, "(?:$p)");
} else {
if ($state eq "left") {
push(@left, $part);
} else {
push(@right, $part);
$state = "right";
}
}
}
my $depth = @patterns;
if ($depth == 0) {
die "One '*' is needed in glob: '$glob'\n";
}
my $left = join('/', @left);
my $right = join('/', @right);
$re = join('/', @patterns);
$re = join('\/',
grep(length, quotemeta($left), "($re)", quotemeta($right)));
my $left_re = qr/^\/\Q$left\E(\/|$)/;
bless { left => $left, right => $right, left_regex => $left_re,
regex => qr/$re/, glob => $glob, depth => $depth }, $class;
}
sub full_path {
my ($self, $path) = @_;
return (length $self->{left} ? "$self->{left}/" : '') .
$path . (length $self->{right} ? "/$self->{right}" : '');
}
__END__
Data structures:
$remotes = { # returned by read_all_remotes()
'svn' => {
# svn-remote.svn.url=https://svn.musicpd.org
url => 'https://svn.musicpd.org',
# svn-remote.svn.fetch=mpd/trunk:trunk
fetch => {
'mpd/trunk' => 'trunk',
},
# svn-remote.svn.tags=mpd/tags/*:tags/*
tags => {
path => {
left => 'mpd/tags',
right => '',
regex => qr!mpd/tags/([^/]+)$!,
glob => 'tags/*',
},
ref => {
left => 'tags',
right => '',
regex => qr!tags/([^/]+)$!,
glob => 'tags/*',
},
}
}
};
$log_entry hashref as returned by libsvn_log_entry()
{
log => 'whitespace-formatted log entry
', # trailing newline is preserved
revision => '8', # integer
date => '2004-02-24T17:01:44.108345Z', # commit date
author => 'committer name'
};
# this is generated by generate_diff();
@mods = array of diff-index line hashes, each element represents one line
of diff-index output
diff-index line ($m hash)
{
mode_a => first column of diff-index output, no leading ':',
mode_b => second column of diff-index output,
sha1_b => sha1sum of the final blob,
chg => change type [MCRADT],
file_a => original file name of a file (iff chg is 'C' or 'R')
file_b => new/current file name of a file (any chg)
}
;
# retval of read_url_paths{,_all}();
$l_map = {
# repository root url
'https://svn.musicpd.org' => {
# repository path # GIT_SVN_ID
'mpd/trunk' => 'trunk',
'mpd/tags/0.11.5' => 'tags/0.11.5',
},
}
Notes:
I don't trust the each() function on unless I created %hash myself
because the internal iterator may not have started at base.
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