Commit dae556bd authored by Christian Couder's avatar Christian Couder Committed by Junio C Hamano

environment: add global variable to disable replacement

This new "read_replace_refs" global variable is set to 1 by
default, so that replace refs are used by default. But
reachability traversal and packing commands ("cmd_fsck",
"cmd_prune", "cmd_pack_objects", "upload_pack",
"cmd_unpack_objects") set it to 0, as they must work with the
original DAG.
Signed-off-by: Christian Couder's avatarChristian Couder <chriscool@tuxfamily.org>
Signed-off-by: default avatarJunio C Hamano <gitster@pobox.com>
parent cc400f50
......@@ -589,6 +589,7 @@ int cmd_fsck(int argc, const char **argv, const char *prefix)
struct alternate_object_database *alt;
errors_found = 0;
read_replace_refs = 0;
argc = parse_options(argc, argv, prefix, fsck_opts, fsck_usage, 0);
if (write_lost_and_found) {
......
......@@ -2103,6 +2103,8 @@ int cmd_pack_objects(int argc, const char **argv, const char *prefix)
int rp_ac_alloc = 64;
int rp_ac;
read_replace_refs = 0;
rp_av = xcalloc(rp_ac_alloc, sizeof(*rp_av));
rp_av[0] = "pack-objects";
......
......@@ -140,6 +140,7 @@ int cmd_prune(int argc, const char **argv, const char *prefix)
char *s;
save_commit_buffer = 0;
read_replace_refs = 0;
init_revisions(&revs, prefix);
argc = parse_options(argc, argv, prefix, options, prune_usage, 0);
......
......@@ -495,6 +495,8 @@ int cmd_unpack_objects(int argc, const char **argv, const char *prefix)
int i;
unsigned char sha1[20];
read_replace_refs = 0;
git_config(git_default_config, NULL);
quiet = !isatty(2);
......
......@@ -516,6 +516,7 @@ extern size_t packed_git_window_size;
extern size_t packed_git_limit;
extern size_t delta_base_cache_limit;
extern int auto_crlf;
extern int read_replace_refs;
extern int fsync_object_files;
extern int core_preload_index;
......
......@@ -38,6 +38,7 @@ int pager_use_color = 1;
const char *editor_program;
const char *excludes_file;
int auto_crlf = 0; /* 1: both ways, -1: only when adding git objects */
int read_replace_refs = 1;
enum safe_crlf safe_crlf = SAFE_CRLF_WARN;
unsigned whitespace_rule_cfg = WS_DEFAULT_RULE;
enum branch_track git_branch_track = BRANCH_TRACK_REMOTE;
......
......@@ -94,6 +94,9 @@ const unsigned char *lookup_replace_object(const unsigned char *sha1)
int pos, depth = MAXREPLACEDEPTH;
const unsigned char *cur = sha1;
if (!read_replace_refs)
return sha1;
prepare_replace_object();
/* Try to recursively replace the object */
......
......@@ -82,6 +82,29 @@ test_expect_success 'tag replaced commit' '
git mktag <tag.sig >.git/refs/tags/mytag 2>message
'
test_expect_success '"git fsck" works' '
git fsck master > fsck_master.out &&
grep "dangling commit $R" fsck_master.out &&
grep "dangling tag $(cat .git/refs/tags/mytag)" fsck_master.out &&
test -z "$(git fsck)"
'
test_expect_success 'repack, clone and fetch work' '
git repack -a -d &&
git clone --no-hardlinks . clone_dir &&
cd clone_dir &&
git show HEAD~5 | grep "A U Thor" &&
git show $HASH2 | grep "A U Thor" &&
git cat-file commit $R &&
git repack -a -d &&
test_must_fail git cat-file commit $R &&
git fetch ../ "refs/replace/*:refs/replace/*" &&
git show HEAD~5 | grep "O Thor" &&
git show $HASH2 | grep "O Thor" &&
git cat-file commit $R &&
cd ..
'
#
#
test_done
......@@ -618,6 +618,7 @@ int main(int argc, char **argv)
int strict = 0;
git_extract_argv0_path(argv[0]);
read_replace_refs = 0;
for (i = 1; i < argc; i++) {
char *arg = argv[i];
......
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