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authorJunio C Hamano <gitster@pobox.com>2009-05-03 22:01:31 (GMT)
committerJunio C Hamano <gitster@pobox.com>2009-05-03 22:01:31 (GMT)
commite89c6ea9988fc039a17875eb9cbdea245e96ed67 (patch)
tree2eaff9fe76a30f4ee40c3bf9bf1beca1b4e67afd
parent3f3e2c26fa0325f4df952363f8f5046ca8158bb3 (diff)
parent094085e3362c592c932b41525ed37152ec171192 (diff)
downloadgit-e89c6ea9988fc039a17875eb9cbdea245e96ed67.zip
git-e89c6ea9988fc039a17875eb9cbdea245e96ed67.tar.gz
git-e89c6ea9988fc039a17875eb9cbdea245e96ed67.tar.bz2
Merge branch 'jc/maint-1.6.0-keep-pack' into maint-1.6.1
* jc/maint-1.6.0-keep-pack: pack-objects: don't loosen objects available in alternate or kept packs t7700: demonstrate repack flaw which may loosen objects unnecessarily Remove --kept-pack-only option and associated infrastructure pack-objects: only repack or loosen objects residing in "local" packs git-repack.sh: don't use --kept-pack-only option to pack-objects t7700-repack: add two new tests demonstrating repacking flaws is_kept_pack(): final clean-up Simplify is_kept_pack() Consolidate ignore_packed logic more has_sha1_kept_pack(): take "struct rev_info" has_sha1_pack(): refactor "pretend these packs do not exist" interface git-repack: resist stray environment variable
-rw-r--r--builtin-count-objects.c2
-rw-r--r--builtin-fsck.c2
-rw-r--r--builtin-pack-objects.c39
-rw-r--r--builtin-prune-packed.c2
-rw-r--r--cache.h3
-rw-r--r--diff.c2
-rwxr-xr-xgit-repack.sh4
-rw-r--r--revision.c18
-rw-r--r--revision.h5
-rw-r--r--sha1_file.c41
-rwxr-xr-xt/t7700-repack.sh61
11 files changed, 105 insertions, 74 deletions
diff --git a/builtin-count-objects.c b/builtin-count-objects.c
index ab35b65..38b033f 100644
--- a/builtin-count-objects.c
+++ b/builtin-count-objects.c
@@ -61,7 +61,7 @@ static void count_objects(DIR *d, char *path, int len, int verbose,
hex[40] = 0;
if (get_sha1_hex(hex, sha1))
die("internal error");
- if (has_sha1_pack(sha1, NULL))
+ if (has_sha1_pack(sha1))
(*packed_loose)++;
}
}
diff --git a/builtin-fsck.c b/builtin-fsck.c
index 5c4c77a..a60d199 100644
--- a/builtin-fsck.c
+++ b/builtin-fsck.c
@@ -158,7 +158,7 @@ static void check_reachable_object(struct object *obj)
* do a full fsck
*/
if (!obj->parsed) {
- if (has_sha1_pack(obj->sha1, NULL))
+ if (has_sha1_pack(obj->sha1))
return; /* it is in pack - forget about it */
printf("missing %s %s\n", typename(obj->type), sha1_to_hex(obj->sha1));
errors_found |= ERROR_REACHABLE;
diff --git a/builtin-pack-objects.c b/builtin-pack-objects.c
index a357cb0..d155345 100644
--- a/builtin-pack-objects.c
+++ b/builtin-pack-objects.c
@@ -1961,11 +1961,7 @@ static void add_objects_in_unpacked_packs(struct rev_info *revs)
const unsigned char *sha1;
struct object *o;
- for (i = 0; i < revs->num_ignore_packed; i++) {
- if (matches_pack_name(p, revs->ignore_packed[i]))
- break;
- }
- if (revs->num_ignore_packed <= i)
+ if (!p->pack_local || p->pack_keep)
continue;
if (open_pack_index(p))
die("cannot open pack index");
@@ -1994,6 +1990,29 @@ static void add_objects_in_unpacked_packs(struct rev_info *revs)
free(in_pack.array);
}
+static int has_sha1_pack_kept_or_nonlocal(const unsigned char *sha1)
+{
+ static struct packed_git *last_found = (void *)1;
+ struct packed_git *p;
+
+ p = (last_found != (void *)1) ? last_found : packed_git;
+
+ while (p) {
+ if ((!p->pack_local || p->pack_keep) &&
+ find_pack_entry_one(sha1, p)) {
+ last_found = p;
+ return 1;
+ }
+ if (p == last_found)
+ p = packed_git;
+ else
+ p = p->next;
+ if (p == last_found)
+ p = p->next;
+ }
+ return 0;
+}
+
static void loosen_unused_packed_objects(struct rev_info *revs)
{
struct packed_git *p;
@@ -2001,11 +2020,7 @@ static void loosen_unused_packed_objects(struct rev_info *revs)
const unsigned char *sha1;
for (p = packed_git; p; p = p->next) {
- for (i = 0; i < revs->num_ignore_packed; i++) {
- if (matches_pack_name(p, revs->ignore_packed[i]))
- break;
- }
- if (revs->num_ignore_packed <= i)
+ if (!p->pack_local || p->pack_keep)
continue;
if (open_pack_index(p))
@@ -2013,7 +2028,8 @@ static void loosen_unused_packed_objects(struct rev_info *revs)
for (i = 0; i < p->num_objects; i++) {
sha1 = nth_packed_object_sha1(p, i);
- if (!locate_object_entry(sha1))
+ if (!locate_object_entry(sha1) &&
+ !has_sha1_pack_kept_or_nonlocal(sha1))
if (force_object_loose(sha1, p->mtime))
die("unable to force loose object");
}
@@ -2203,7 +2219,6 @@ int cmd_pack_objects(int argc, const char **argv, const char *prefix)
continue;
}
if (!strcmp("--unpacked", arg) ||
- !prefixcmp(arg, "--unpacked=") ||
!strcmp("--reflog", arg) ||
!strcmp("--all", arg)) {
use_internal_rev_list = 1;
diff --git a/builtin-prune-packed.c b/builtin-prune-packed.c
index 10cb8df..2d5b2cd 100644
--- a/builtin-prune-packed.c
+++ b/builtin-prune-packed.c
@@ -23,7 +23,7 @@ static void prune_dir(int i, DIR *dir, char *pathname, int len, int opts)
memcpy(hex+2, de->d_name, 38);
if (get_sha1_hex(hex, sha1))
continue;
- if (!has_sha1_pack(sha1, NULL))
+ if (!has_sha1_pack(sha1))
continue;
memcpy(pathname + len, de->d_name, 38);
if (opts & DRY_RUN)
diff --git a/cache.h b/cache.h
index 1567570..8bc6bf3 100644
--- a/cache.h
+++ b/cache.h
@@ -646,7 +646,7 @@ extern int check_sha1_signature(const unsigned char *sha1, void *buf, unsigned l
extern int move_temp_to_file(const char *tmpfile, const char *filename);
-extern int has_sha1_pack(const unsigned char *sha1, const char **ignore);
+extern int has_sha1_pack(const unsigned char *sha1);
extern int has_sha1_file(const unsigned char *sha1);
extern int has_loose_object_nonlocal(const unsigned char *sha1);
@@ -835,7 +835,6 @@ extern void *unpack_entry(struct packed_git *, off_t, enum object_type *, unsign
extern unsigned long unpack_object_header_buffer(const unsigned char *buf, unsigned long len, enum object_type *type, unsigned long *sizep);
extern unsigned long get_size_from_delta(struct packed_git *, struct pack_window **, off_t);
extern const char *packed_object_info_detail(struct packed_git *, off_t, unsigned long *, unsigned long *, unsigned int *, unsigned char *);
-extern int matches_pack_name(struct packed_git *p, const char *name);
/* Dumb servers support */
extern int update_server_info(int);
diff --git a/diff.c b/diff.c
index 635fbc9..387d19f 100644
--- a/diff.c
+++ b/diff.c
@@ -1674,7 +1674,7 @@ static int reuse_worktree_file(const char *name, const unsigned char *sha1, int
* objects however would tend to be slower as they need
* to be individually opened and inflated.
*/
- if (!FAST_WORKING_DIRECTORY && !want_file && has_sha1_pack(sha1, NULL))
+ if (!FAST_WORKING_DIRECTORY && !want_file && has_sha1_pack(sha1))
return 0;
len = strlen(name);
diff --git a/git-repack.sh b/git-repack.sh
index 00c597e..0868734 100755
--- a/git-repack.sh
+++ b/git-repack.sh
@@ -60,6 +60,7 @@ case ",$all_into_one," in
args='--unpacked --incremental'
;;
,t,)
+ args= existing=
if [ -d "$PACKDIR" ]; then
for e in `cd "$PACKDIR" && find . -type f -name '*.pack' \
| sed -e 's/^\.\///' -e 's/\.pack$//'`
@@ -67,11 +68,10 @@ case ",$all_into_one," in
if [ -e "$PACKDIR/$e.keep" ]; then
: keep
else
- args="$args --unpacked=$e.pack"
existing="$existing $e"
fi
done
- if test -n "$args" -a -n "$unpack_unreachable" -a \
+ if test -n "$existing" -a -n "$unpack_unreachable" -a \
-n "$remove_redundant"
then
args="$args $unpack_unreachable"
diff --git a/revision.c b/revision.c
index 286e416..34ee490 100644
--- a/revision.c
+++ b/revision.c
@@ -994,16 +994,6 @@ static void add_message_grep(struct rev_info *revs, const char *pattern)
add_grep(revs, pattern, GREP_PATTERN_BODY);
}
-static void add_ignore_packed(struct rev_info *revs, const char *name)
-{
- int num = ++revs->num_ignore_packed;
-
- revs->ignore_packed = xrealloc(revs->ignore_packed,
- sizeof(const char *) * (num + 1));
- revs->ignore_packed[num-1] = name;
- revs->ignore_packed[num] = NULL;
-}
-
static int handle_revision_opt(struct rev_info *revs, int argc, const char **argv,
int *unkc, const char **unkv)
{
@@ -1116,12 +1106,8 @@ static int handle_revision_opt(struct rev_info *revs, int argc, const char **arg
revs->edge_hint = 1;
} else if (!strcmp(arg, "--unpacked")) {
revs->unpacked = 1;
- free(revs->ignore_packed);
- revs->ignore_packed = NULL;
- revs->num_ignore_packed = 0;
} else if (!prefixcmp(arg, "--unpacked=")) {
- revs->unpacked = 1;
- add_ignore_packed(revs, arg+11);
+ die("--unpacked=<packfile> no longer supported.");
} else if (!strcmp(arg, "-r")) {
revs->diff = 1;
DIFF_OPT_SET(&revs->diffopt, RECURSIVE);
@@ -1685,7 +1671,7 @@ enum commit_action simplify_commit(struct rev_info *revs, struct commit *commit)
{
if (commit->object.flags & SHOWN)
return commit_ignore;
- if (revs->unpacked && has_sha1_pack(commit->object.sha1, revs->ignore_packed))
+ if (revs->unpacked && has_sha1_pack(commit->object.sha1))
return commit_ignore;
if (revs->show_all)
return commit_show;
diff --git a/revision.h b/revision.h
index 7cf8487..66d211a 100644
--- a/revision.h
+++ b/revision.h
@@ -49,7 +49,7 @@ struct rev_info {
blob_objects:1,
edge_hint:1,
limited:1,
- unpacked:1, /* see also ignore_packed below */
+ unpacked:1,
boundary:2,
left_right:1,
rewrite_parents:1,
@@ -80,9 +80,6 @@ struct rev_info {
missing_newline:1;
enum date_mode date_mode;
- const char **ignore_packed; /* pretend objects in these are unpacked */
- int num_ignore_packed;
-
unsigned int abbrev;
enum cmit_fmt commit_format;
struct log_info *loginfo;
diff --git a/sha1_file.c b/sha1_file.c
index 3d93d93..2320400 100644
--- a/sha1_file.c
+++ b/sha1_file.c
@@ -1916,25 +1916,7 @@ off_t find_pack_entry_one(const unsigned char *sha1,
return 0;
}
-int matches_pack_name(struct packed_git *p, const char *name)
-{
- const char *last_c, *c;
-
- if (!strcmp(p->pack_name, name))
- return 1;
-
- for (c = p->pack_name, last_c = c; *c;)
- if (*c == '/')
- last_c = ++c;
- else
- ++c;
- if (!strcmp(last_c, name))
- return 1;
-
- return 0;
-}
-
-static int find_pack_entry(const unsigned char *sha1, struct pack_entry *e, const char **ignore_packed)
+static int find_pack_entry(const unsigned char *sha1, struct pack_entry *e)
{
static struct packed_git *last_found = (void *)1;
struct packed_git *p;
@@ -1946,15 +1928,6 @@ static int find_pack_entry(const unsigned char *sha1, struct pack_entry *e, cons
p = (last_found == (void *)1) ? packed_git : last_found;
do {
- if (ignore_packed) {
- const char **ig;
- for (ig = ignore_packed; *ig; ig++)
- if (matches_pack_name(p, *ig))
- break;
- if (*ig)
- goto next;
- }
-
if (p->num_bad_objects) {
unsigned i;
for (i = 0; i < p->num_bad_objects; i++)
@@ -2035,7 +2008,7 @@ int sha1_object_info(const unsigned char *sha1, unsigned long *sizep)
struct pack_entry e;
int status;
- if (!find_pack_entry(sha1, &e, NULL)) {
+ if (!find_pack_entry(sha1, &e)) {
/* Most likely it's a loose object. */
status = sha1_loose_object_info(sha1, sizep);
if (status >= 0)
@@ -2043,7 +2016,7 @@ int sha1_object_info(const unsigned char *sha1, unsigned long *sizep)
/* Not a loose object; someone else may have just packed it. */
reprepare_packed_git();
- if (!find_pack_entry(sha1, &e, NULL))
+ if (!find_pack_entry(sha1, &e))
return status;
}
@@ -2062,7 +2035,7 @@ static void *read_packed_sha1(const unsigned char *sha1,
struct pack_entry e;
void *data;
- if (!find_pack_entry(sha1, &e, NULL))
+ if (!find_pack_entry(sha1, &e))
return NULL;
data = cache_or_unpack_entry(e.p, e.offset, size, type, 1);
if (!data) {
@@ -2461,17 +2434,17 @@ int has_pack_file(const unsigned char *sha1)
return 1;
}
-int has_sha1_pack(const unsigned char *sha1, const char **ignore_packed)
+int has_sha1_pack(const unsigned char *sha1)
{
struct pack_entry e;
- return find_pack_entry(sha1, &e, ignore_packed);
+ return find_pack_entry(sha1, &e);
}
int has_sha1_file(const unsigned char *sha1)
{
struct pack_entry e;
- if (find_pack_entry(sha1, &e, NULL))
+ if (find_pack_entry(sha1, &e))
return 1;
return has_loose_object(sha1);
}
diff --git a/t/t7700-repack.sh b/t/t7700-repack.sh
index 3f602ea..9ce546e 100755
--- a/t/t7700-repack.sh
+++ b/t/t7700-repack.sh
@@ -69,5 +69,66 @@ test_expect_success 'packed obs in alt ODB are repacked even when local repo is
done
'
+test_expect_success 'packed obs in alternate ODB kept pack are repacked' '
+ # swap the .keep so the commit object is in the pack with .keep
+ for p in alt_objects/pack/*.pack
+ do
+ base_name=$(basename $p .pack)
+ if test -f alt_objects/pack/$base_name.keep
+ then
+ rm alt_objects/pack/$base_name.keep
+ else
+ touch alt_objects/pack/$base_name.keep
+ fi
+ done
+ git repack -a -d &&
+ myidx=$(ls -1 .git/objects/pack/*.idx) &&
+ test -f "$myidx" &&
+ for p in alt_objects/pack/*.idx; do
+ git verify-pack -v $p | sed -n -e "/^[0-9a-f]\{40\}/p"
+ done | while read sha1 rest; do
+ if ! ( git verify-pack -v $myidx | grep "^$sha1" ); then
+ echo "Missing object in local pack: $sha1"
+ return 1
+ fi
+ done
+'
+
+test_expect_success 'packed unreachable obs in alternate ODB are not loosened' '
+ rm -f alt_objects/pack/*.keep &&
+ mv .git/objects/pack/* alt_objects/pack/ &&
+ csha1=$(git rev-parse HEAD^{commit}) &&
+ git reset --hard HEAD^ &&
+ sleep 1 &&
+ git reflog expire --expire=now --expire-unreachable=now --all &&
+ # The pack-objects call on the next line is equivalent to
+ # git repack -A -d without the call to prune-packed
+ git pack-objects --honor-pack-keep --non-empty --all --reflog \
+ --unpack-unreachable </dev/null pack &&
+ rm -f .git/objects/pack/* &&
+ mv pack-* .git/objects/pack/ &&
+ test 0 = $(git verify-pack -v -- .git/objects/pack/*.idx |
+ egrep "^$csha1 " | sort | uniq | wc -l) &&
+ echo > .git/objects/info/alternates &&
+ test_must_fail git show $csha1
+'
+
+test_expect_success 'local packed unreachable obs that exist in alternate ODB are not loosened' '
+ echo `pwd`/alt_objects > .git/objects/info/alternates &&
+ echo "$csha1" | git pack-objects --non-empty --all --reflog pack &&
+ rm -f .git/objects/pack/* &&
+ mv pack-* .git/objects/pack/ &&
+ # The pack-objects call on the next line is equivalent to
+ # git repack -A -d without the call to prune-packed
+ git pack-objects --honor-pack-keep --non-empty --all --reflog \
+ --unpack-unreachable </dev/null pack &&
+ rm -f .git/objects/pack/* &&
+ mv pack-* .git/objects/pack/ &&
+ test 0 = $(git verify-pack -v -- .git/objects/pack/*.idx |
+ egrep "^$csha1 " | sort | uniq | wc -l) &&
+ echo > .git/objects/info/alternates &&
+ test_must_fail git show $csha1
+'
+
test_done