This option avoids unpacking each and all objects, and just verifies the
connectivity. In particular with large repositories, this speeds up the
operation, at the expense of missing corrupt blobs and ignoring
unreachable objects, if any.
Signed-off-by: Johannes Schindelin <johannes.schindelin@xxxxxx>
---
Documentation/git-fsck.txt | 7 ++++++-
builtin/fsck.c | 7 ++++++-
t/t1450-fsck.sh | 22 ++++++++++++++++++++++
3 files changed, 34 insertions(+), 2 deletions(-)
diff --git a/Documentation/git-fsck.txt b/Documentation/git-fsck.txt
index 25c431d..b98fb43 100644
--- a/Documentation/git-fsck.txt
+++ b/Documentation/git-fsck.txt
@@ -10,7 +10,7 @@ SYNOPSIS
--------
[verse]
'git fsck' [--tags] [--root] [--unreachable] [--cache] [--no-reflogs]
- [--[no-]full] [--strict] [--verbose] [--lost-found]
+ [--[no-]full] [--quick] [--strict] [--verbose] [--lost-found]
[--[no-]dangling] [--[no-]progress] [<object>*]
DESCRIPTION
@@ -60,6 +60,11 @@ index file, all SHA-1 references in `refs` namespace, and all reflogs
object pools. This is now default; you can turn it off
with --no-full.
+--quick::
+ Check only the connectivity of tags, commits and tree objects. By
+ avoiding to unpack blobs, this speeds up the operation, at the
+ expense of missing corrupt objects.
+
--strict::
Enable more strict checking, namely to catch a file mode
recorded with g+w bit set, which was created by older
diff --git a/builtin/fsck.c b/builtin/fsck.c
index 2b8faa4..dcea9b0 100644
--- a/builtin/fsck.c
+++ b/builtin/fsck.c
@@ -23,6 +23,7 @@ static int show_tags;
static int show_unreachable;
static int include_reflogs = 1;
static int check_full = 1;
+static int quick;
static int check_strict;
static int keep_cache_objects;
static struct fsck_options fsck_walk_options = FSCK_OPTIONS_DEFAULT;
@@ -184,6 +185,8 @@ static void check_reachable_object(struct object *obj)
if (!(obj->flags & HAS_OBJ)) {
if (has_sha1_pack(obj->sha1))
return; /* it is in pack - forget about it */
+ if (quick && has_sha1_file(obj->sha1))
+ return;
printf("missing %s %s\n", typename(obj->type), sha1_to_hex(obj->sha1));
errors_found |= ERROR_REACHABLE;
return;
@@ -618,6 +621,7 @@ static struct option fsck_opts[] = {
OPT_BOOL(0, "cache", &keep_cache_objects, N_("make index objects head nodes")),
OPT_BOOL(0, "reflogs", &include_reflogs, N_("make reflogs head nodes (default)")),
OPT_BOOL(0, "full", &check_full, N_("also consider packs and alternate objects")),
+ OPT_BOOL(0, "quick", &quick, N_("check only connectivity")),
OPT_BOOL(0, "strict", &check_strict, N_("enable more strict checking")),
OPT_BOOL(0, "lost-found", &write_lost_and_found,
N_("write dangling objects in .git/lost-found")),
@@ -654,7 +658,8 @@ int cmd_fsck(int argc, const char **argv, const char *prefix)
git_config(fsck_config, NULL);
fsck_head_link();
- fsck_object_dir(get_object_directory());
+ if (!quick)
+ fsck_object_dir(get_object_directory());
prepare_alt_odb();
for (alt = alt_odb_list; alt; alt = alt->next) {
diff --git a/t/t1450-fsck.sh b/t/t1450-fsck.sh
index d74df19..d389d4a 100755
--- a/t/t1450-fsck.sh
+++ b/t/t1450-fsck.sh
@@ -407,4 +407,26 @@ test_expect_success 'fsck notices ref pointing to missing tag' '
test_must_fail git -C missing fsck
'
+test_expect_success 'fsck --quick' '
+ rm -rf quick &&
+ git init quick &&
+ (
+ cd quick &&
+ touch empty &&
+ git add empty &&
+ test_commit empty &&
+ empty=.git/objects/e6/9de29bb2d1d6434b8b29ae775ad8c2e48c5391 &&
+ rm -f $empty &&
+ echo invalid >$empty &&
+ test_must_fail git fsck --strict &&
+ git fsck --strict --quick &&
+ tree=$(git rev-parse HEAD:) &&
+ suffix=${tree#??} &&
+ tree=.git/objects/${tree%$suffix}/$suffix &&
+ rm -f $tree &&
+ echo invalid >$tree &&
+ test_must_fail git fsck --strict --quick
+ )
+'
+
test_done
--
2.0.0.rc3.9669.g840d1f9
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