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clone: partial clone

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Signed-off-by: Jonathan Tan <jonathantanmy@google.com>
Signed-off-by: Jeff Hostetler <jeffhost@microsoft.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Jonathan Tan 2017-12-08 15:58:46 +00:00 committed by Junio C Hamano
parent 1e1e39b308
commit 548719fbdc
2 changed files with 69 additions and 2 deletions
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22
builtin/clone.c
View File

@ -26,6 +26,7 @@
#include "run-command.h"
#include "connected.h"
#include "packfile.h"
#include "list-objects-filter-options.h"
/*
* Overall FIXMEs:
@ -60,6 +61,7 @@ static struct string_list option_optional_reference = STRING_LIST_INIT_NODUP;
static int option_dissociate;
static int max_jobs = -1;
static struct string_list option_recurse_submodules = STRING_LIST_INIT_NODUP;
static struct list_objects_filter_options filter_options;
static int recurse_submodules_cb(const struct option *opt,
const char *arg, int unset)
@ -135,6 +137,7 @@ static struct option builtin_clone_options[] = {
TRANSPORT_FAMILY_IPV4),
OPT_SET_INT('6', "ipv6", &family, N_("use IPv6 addresses only"),
TRANSPORT_FAMILY_IPV6),
OPT_PARSE_LIST_OBJECTS_FILTER(&filter_options),
OPT_END()
};
@ -886,6 +889,8 @@ int cmd_clone(int argc, const char **argv, const char *prefix)
struct refspec *refspec;
const char *fetch_pattern;
fetch_if_missing = 0;
packet_trace_identity("clone");
argc = parse_options(argc, argv, prefix, builtin_clone_options,
builtin_clone_usage, 0);
@ -1073,6 +1078,8 @@ int cmd_clone(int argc, const char **argv, const char *prefix)
warning(_("--shallow-since is ignored in local clones; use file:// instead."));
if (option_not.nr)
warning(_("--shallow-exclude is ignored in local clones; use file:// instead."));
if (filter_options.choice)
warning(_("--filter is ignored in local clones; use file:// instead."));
if (!access(mkpath("%s/shallow", path), F_OK)) {
if (option_local > 0)
warning(_("source repository is shallow, ignoring --local"));
@ -1104,7 +1111,13 @@ int cmd_clone(int argc, const char **argv, const char *prefix)
transport_set_option(transport, TRANS_OPT_UPLOADPACK,
option_upload_pack);
if (transport->smart_options && !deepen)
if (filter_options.choice) {
transport_set_option(transport, TRANS_OPT_LIST_OBJECTS_FILTER,
filter_options.filter_spec);
transport_set_option(transport, TRANS_OPT_FROM_PROMISOR, "1");
}
if (transport->smart_options && !deepen && !filter_options.choice)
transport->smart_options->check_self_contained_and_connected = 1;
refs = transport_get_remote_refs(transport);
@ -1164,13 +1177,17 @@ int cmd_clone(int argc, const char **argv, const char *prefix)
write_refspec_config(src_ref_prefix, our_head_points_at,
remote_head_points_at, &branch_top);
if (filter_options.choice)
partial_clone_register("origin", &filter_options);
if (is_local)
clone_local(path, git_dir);
else if (refs && complete_refs_before_fetch)
transport_fetch_refs(transport, mapped_refs);
update_remote_refs(refs, mapped_refs, remote_head_points_at,
branch_top.buf, reflog_msg.buf, transport, !is_local);
branch_top.buf, reflog_msg.buf, transport,
!is_local && !filter_options.choice);
update_head(our_head_points_at, remote_head, reflog_msg.buf);
@ -1191,6 +1208,7 @@ int cmd_clone(int argc, const char **argv, const char *prefix)
}
junk_mode = JUNK_LEAVE_REPO;
fetch_if_missing = 1;
err = checkout(submodule_progress);
strbuf_release(&reflog_msg);

49
t/t5601-clone.sh
View File

@ -571,4 +571,53 @@ test_expect_success 'GIT_TRACE_PACKFILE produces a usable pack' '
git -C replay.git index-pack -v --stdin <tmp.pack
'
partial_clone () {
SERVER="$1" &&
URL="$2" &&
rm -rf "$SERVER" client &&
test_create_repo "$SERVER" &&
test_commit -C "$SERVER" one &&
HASH1=$(git hash-object "$SERVER/one.t") &&
git -C "$SERVER" revert HEAD &&
test_commit -C "$SERVER" two &&
HASH2=$(git hash-object "$SERVER/two.t") &&
test_config -C "$SERVER" uploadpack.allowfilter 1 &&
test_config -C "$SERVER" uploadpack.allowanysha1inwant 1 &&
git clone --filter=blob:limit=0 "$URL" client &&
git -C client fsck &&
# Ensure that unneeded blobs are not inadvertently fetched.
test_config -C client extensions.partialclone "not a remote" &&
test_must_fail git -C client cat-file -e "$HASH1" &&
# But this blob was fetched, because clone performs an initial checkout
git -C client cat-file -e "$HASH2"
}
test_expect_success 'partial clone' '
partial_clone server "file://$(pwd)/server"
'
test_expect_success 'partial clone: warn if server does not support object filtering' '
rm -rf server client &&
test_create_repo server &&
test_commit -C server one &&
git clone --filter=blob:limit=0 "file://$(pwd)/server" client 2> err &&
test_i18ngrep "filtering not recognized by server" err
'
. "$TEST_DIRECTORY"/lib-httpd.sh
start_httpd
test_expect_success 'partial clone using HTTP' '
partial_clone "$HTTPD_DOCUMENT_ROOT_PATH/server" "$HTTPD_URL/smart/server"
'
stop_httpd
test_done