From b790e0f67cd97f29b72cb9007632b0329e5eebec Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Nguy=E1=BB=85n=20Th=C3=A1i=20Ng=E1=BB=8Dc=20Duy?= Date: Tue, 11 Mar 2014 19:59:46 +0700 Subject: upload-pack: send shallow info over stdin to pack-objects MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Before cdab485 (upload-pack: delegate rev walking in shallow fetch to pack-objects - 2013-08-16) upload-pack does not write to the source repository. cdab485 starts to write $GIT_DIR/shallow_XXXXXX if it's a shallow fetch, so the source repo must be writable. git:// servers do not need write access to repos and usually don't have it, which means cdab485 breaks shallow clone over git:// Instead of using a temporary file as the media for shallow points, we can send them over stdin to pack-objects as well. Prepend shallow SHA-1 with --shallow so pack-objects knows what is what. Signed-off-by: Nguyễn Thái Ngọc Duy Signed-off-by: Junio C Hamano --- Documentation/git-pack-objects.txt | 2 ++ builtin/pack-objects.c | 10 ++++++++++ t/t5537-fetch-shallow.sh | 13 +++++++++++++ upload-pack.c | 21 ++++++++++++--------- 4 files changed, 37 insertions(+), 9 deletions(-) diff --git a/Documentation/git-pack-objects.txt b/Documentation/git-pack-objects.txt index cdab9ed503..d2d8f4792a 100644 --- a/Documentation/git-pack-objects.txt +++ b/Documentation/git-pack-objects.txt @@ -64,6 +64,8 @@ base-name:: the same way as 'git rev-list' with the `--objects` flag uses its `commit` arguments to build the list of objects it outputs. The objects on the resulting list are packed. + Besides revisions, `--not` or `--shallow ` lines are + also accepted. --unpacked:: This implies `--revs`. When processing the list of diff --git a/builtin/pack-objects.c b/builtin/pack-objects.c index 541667f102..c2c093a33e 100644 --- a/builtin/pack-objects.c +++ b/builtin/pack-objects.c @@ -2358,6 +2358,9 @@ static void get_object_list(int ac, const char **av) save_commit_buffer = 0; setup_revisions(ac, av, &revs, NULL); + /* make sure shallows are read */ + is_repository_shallow(); + while (fgets(line, sizeof(line), stdin) != NULL) { int len = strlen(line); if (len && line[len - 1] == '\n') @@ -2369,6 +2372,13 @@ static void get_object_list(int ac, const char **av) flags ^= UNINTERESTING; continue; } + if (starts_with(line, "--shallow ")) { + unsigned char sha1[20]; + if (get_sha1_hex(line + 10, sha1)) + die("not an SHA-1 '%s'", line + 10); + register_shallow(sha1); + continue; + } die("not a rev '%s'", line); } if (handle_revision_arg(line, &revs, flags, REVARG_CANNOT_BE_FILENAME)) diff --git a/t/t5537-fetch-shallow.sh b/t/t5537-fetch-shallow.sh index b0fa7387cb..be951a4679 100755 --- a/t/t5537-fetch-shallow.sh +++ b/t/t5537-fetch-shallow.sh @@ -200,5 +200,18 @@ EOF ) ' +test_expect_success POSIXPERM,SANITY 'shallow fetch from a read-only repo' ' + cp -R .git read-only.git && + find read-only.git -print | xargs chmod -w && + test_when_finished "find read-only.git -type d -print | xargs chmod +w" && + git clone --no-local --depth=2 read-only.git from-read-only && + git --git-dir=from-read-only/.git log --format=%s >actual && + cat >expect <nr_parent == -1) + fprintf(fp, "--shallow %s\n", sha1_to_hex(graft->sha1)); + return 0; +} + static void create_pack_file(void) { struct child_process pack_objects; @@ -81,12 +89,10 @@ static void create_pack_file(void) const char *argv[12]; int i, arg = 0; FILE *pipe_fd; - char *shallow_file = NULL; if (shallow_nr) { - shallow_file = setup_temporary_shallow(NULL); argv[arg++] = "--shallow-file"; - argv[arg++] = shallow_file; + argv[arg++] = ""; } argv[arg++] = "pack-objects"; argv[arg++] = "--revs"; @@ -114,6 +120,9 @@ static void create_pack_file(void) pipe_fd = xfdopen(pack_objects.in, "w"); + if (shallow_nr) + for_each_commit_graft(write_one_shallow, pipe_fd); + for (i = 0; i < want_obj.nr; i++) fprintf(pipe_fd, "%s\n", sha1_to_hex(want_obj.objects[i].item->sha1)); @@ -242,12 +251,6 @@ static void create_pack_file(void) error("git upload-pack: git-pack-objects died with error."); goto fail; } - if (shallow_file) { - if (*shallow_file) - unlink(shallow_file); - free(shallow_file); - } - /* flush the data */ if (0 <= buffered) { data[0] = buffered; -- cgit v1.2.1