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scripts/get_maintainer.pl: Add --git-blame --rolestats "Authored lines" information

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When options --git-blame and --rolestats are specified, add
the maintainers with the qualifying --git-min-percent amount
of lines authored of the complete file.  Does not add more
authors than specified by --git-max-maintainers.

For anyone using hg, this option works but is _very_ slow.
It's orders of magnitude slower than git slow.

The get_maintainer.pl version was incremented to 0.25.

This can be used with or without --git.

For instance:

$ ./scripts/get_maintainer.pl --git-blame --nogit --rolestats -f lib/bitmap.c
Paul Jackson <pj@sgi.com> (authored lines:406/613=66%,commits:7/20=35%)
Akinobu Mita <mita@miraclelinux.com> (authored lines:87/613=14%,commits:3/20=15%)
Reinette Chatre <reinette.chatre@linux.intel.com> (authored lines:42/613=7%)
Andrew Morton <akpm@linux-foundation.org> (commits:16/20=80%)
Paul Mundt <lethal@linux-sh.org> (commits:3/20=15%)
Randy Dunlap <randy.dunlap@oracle.com> (commits:2/20=10%)

$ ./scripts/get_maintainer.pl --git-blame --git --rolestats -f lib/bitmap.c
Andrew Morton <akpm@linux-foundation.org> (commit_signer:4/5=80%,commits:16/20=80%)
Akinobu Mita <akinobu.mita@gmail.com> (commit_signer:2/5=40%,authored lines:87/613=14%,commits:3/20=15%)
Jack Steiner <steiner@sgi.com> (commit_signer:1/5=20%)
Ben Hutchings <ben@decadent.org.uk> (commit_signer:1/5=20%)
Lee Schermerhorn <lee.schermerhorn@hp.com> (commit_signer:1/5=20%)
Paul Jackson <pj@sgi.com> (authored lines:406/613=66%,commits:7/20=35%)
Reinette Chatre <reinette.chatre@linux.intel.com> (authored lines:42/613=7%)
Paul Mundt <lethal@linux-sh.org> (commits:3/20=15%)
Randy Dunlap <randy.dunlap@oracle.com> (commits:2/20=10%)
linux-kernel@vger.kernel.org (open list)

Signed-off-by: Joe Perches <joe@perches.com>
Cc: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Joe Perches 2010-10-26 14:22:51 -07:00 committed by Linus Torvalds
parent b903c0b889
commit 63ab52db5b
1 changed files with 57 additions and 3 deletions
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60
scripts/get_maintainer.pl
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@ -13,7 +13,7 @@
use strict;
my $P = $0;
my $V = '0.24';
my $V = '0.25';
use Getopt::Long qw(:config no_auto_abbrev);
@ -88,6 +88,7 @@ my %VCS_cmds_git = (
"available" => '(which("git") ne "") && (-d ".git")',
"find_signers_cmd" => "git log --no-color --since=\$email_git_since -- \$file",
"find_commit_signers_cmd" => "git log --no-color -1 \$commit",
"find_commit_author_cmd" => "git log -1 --format=\"%an <%ae>\" \$commit",
"blame_range_cmd" => "git blame -l -L \$diff_start,+\$diff_length \$file",
"blame_file_cmd" => "git blame -l \$file",
"commit_pattern" => "^commit [0-9a-f]{40,40}",
@ -101,6 +102,7 @@ my %VCS_cmds_hg = (
"hg log --date=\$email_hg_since" .
" --template='commit {node}\\n{desc}\\n' -- \$file",
"find_commit_signers_cmd" => "hg log --template='{desc}\\n' -r \$commit",
"find_commit_author_cmd" => "hg log -l 1 --template='{author}\\n' -r \$commit",
"blame_range_cmd" => "", # not supported
"blame_file_cmd" => "hg blame -c \$file",
"commit_pattern" => "^commit [0-9a-f]{40,40}",
@ -1014,6 +1016,9 @@ sub vcs_find_signers {
if (!$email_git_penguin_chiefs) {
@lines = grep(!/${penguin_chiefs}/i, @lines);
}
return (0, @lines) if !@lines;
# cut -f2- -d":"
s/.*:\s*(.+)\s*/$1/ for (@lines);
@ -1027,6 +1032,28 @@ sub vcs_find_signers {
return ($commits, @lines);
}
sub vcs_find_author {
my ($cmd) = @_;
my @lines = ();
@lines = &{$VCS_cmds{"execute_cmd"}}($cmd);
if (!$email_git_penguin_chiefs) {
@lines = grep(!/${penguin_chiefs}/i, @lines);
}
return @lines if !@lines;
## Reformat email addresses (with names) to avoid badly written signatures
foreach my $line (@lines) {
my ($name, $address) = parse_email($line);
$line = format_email($name, $address, 1);
}
return @lines;
}
sub vcs_save_commits {
my ($cmd) = @_;
my @lines = ();
@ -1084,6 +1111,10 @@ sub vcs_blame {
@commits = vcs_save_commits($cmd);
}
foreach my $commit (@commits) {
$commit =~ s/^\^//g;
}
return @commits;
}
@ -1121,6 +1152,8 @@ sub vcs_assign {
@lines = mailmap(@lines);
}
return if (@lines <= 0);
@lines = sort(@lines);
# uniq -c
@ -1165,14 +1198,17 @@ sub vcs_file_blame {
my ($file) = @_;
my @signers = ();
my @all_commits = ();
my @commits = ();
my $total_commits;
my $total_lines;
return if (!vcs_exists());
@commits = vcs_blame($file);
@commits = uniq(@commits);
@all_commits = vcs_blame($file);
@commits = uniq(@all_commits);
$total_commits = @commits;
$total_lines = @all_commits;
foreach my $commit (@commits) {
my $commit_count;
@ -1182,10 +1218,28 @@ sub vcs_file_blame {
$cmd =~ s/(\$\w+)/$1/eeg; #interpolate $cmd
($commit_count, @commit_signers) = vcs_find_signers($cmd);
push(@signers, @commit_signers);
}
if ($from_filename) {
if ($output_rolestats) {
my @blame_signers;
foreach my $commit (@commits) {
my $i;
my $cmd = $VCS_cmds{"find_commit_author_cmd"};
$cmd =~ s/(\$\w+)/$1/eeg; #interpolate $cmd
my @author = vcs_find_author($cmd);
next if !@author;
my $count = grep(/$commit/, @all_commits);
for ($i = 0; $i < $count ; $i++) {
push(@blame_signers, $author[0]);
}
}
if (@blame_signers) {
vcs_assign("authored lines", $total_lines, @blame_signers);
}
}
vcs_assign("commits", $total_commits, @signers);
} else {
vcs_assign("modified commits", $total_commits, @signers);