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 <chriscool@tuxfamily.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
diff --git a/builtin-fsck.c b/builtin-fsck.c
index 7da706c..bc05de6 100644
--- a/builtin-fsck.c
+++ b/builtin-fsck.c
@@ -589,6 +589,7 @@
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) {
diff --git a/builtin-pack-objects.c b/builtin-pack-objects.c
index 9742b45..b2c93d3 100644
--- a/builtin-pack-objects.c
+++ b/builtin-pack-objects.c
@@ -2103,6 +2103,8 @@
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";
diff --git a/builtin-prune.c b/builtin-prune.c
index 0ed9cce..8459aec 100644
--- a/builtin-prune.c
+++ b/builtin-prune.c
@@ -140,6 +140,7 @@
char *s;
save_commit_buffer = 0;
+ read_replace_refs = 0;
init_revisions(&revs, prefix);
argc = parse_options(argc, argv, prefix, options, prune_usage, 0);
diff --git a/builtin-unpack-objects.c b/builtin-unpack-objects.c
index 9a77323..c9f5ac0 100644
--- a/builtin-unpack-objects.c
+++ b/builtin-unpack-objects.c
@@ -495,6 +495,8 @@
int i;
unsigned char sha1[20];
+ read_replace_refs = 0;
+
git_config(git_default_config, NULL);
quiet = !isatty(2);
diff --git a/cache.h b/cache.h
index 94b1228..91ef340 100644
--- a/cache.h
+++ b/cache.h
@@ -516,6 +516,7 @@
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;
diff --git a/environment.c b/environment.c
index 801a005..6d90074 100644
--- a/environment.c
+++ b/environment.c
@@ -38,6 +38,7 @@
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;
diff --git a/replace_object.c b/replace_object.c
index b23e1cd..eb59604 100644
--- a/replace_object.c
+++ b/replace_object.c
@@ -94,6 +94,9 @@
int pos, depth = MAXREPLACEDEPTH;
const unsigned char *cur = sha1;
+ if (!read_replace_refs)
+ return sha1;
+
prepare_replace_object();
/* Try to recursively replace the object */
diff --git a/t/t6050-replace.sh b/t/t6050-replace.sh
index 334aed6..17f6063 100755
--- a/t/t6050-replace.sh
+++ b/t/t6050-replace.sh
@@ -82,6 +82,29 @@
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
diff --git a/upload-pack.c b/upload-pack.c
index edc7861..e6c4f34 100644
--- a/upload-pack.c
+++ b/upload-pack.c
@@ -618,6 +618,7 @@
int strict = 0;
git_extract_argv0_path(argv[0]);
+ read_replace_refs = 0;
for (i = 1; i < argc; i++) {
char *arg = argv[i];
