In order to be able to write a multi-pack index during repacking, `git
repack` must keep track of which packs it wants to write into the MIDX.
This set is the union of existing packs which will not be deleted,
new pack(s) generated as a result of the repack, and .keep packs.
Prior to this patch, `git repack` populated the list of existing packs
only when repacking all-into-one (i.e., with `-A` or `-a`), but we will
soon need to know this list when repacking when writing a MIDX without
a-i-o.
Populate the list of existing packs unconditionally, and guard removing
packs from that list only when repacking a-i-o.
Additionally, keep track of filenames of kept packs separately, since
this, too, will be used in an upcoming patch.
Signed-off-by: Taylor Blau <me@xxxxxxxxxxxx>
---
builtin/repack.c | 56 +++++++++++++++++++++++++++---------------------
1 file changed, 31 insertions(+), 25 deletions(-)
diff --git a/builtin/repack.c b/builtin/repack.c
index dba83eede2..39f11df675 100644
--- a/builtin/repack.c
+++ b/builtin/repack.c
@@ -94,12 +94,14 @@ static void remove_pack_on_signal(int signo)
}
/*
- * Adds all packs hex strings to the fname list, which do not
- * have a corresponding .keep file. These packs are not to
- * be kept if we are going to pack everything into one file.
+ * Adds all packs hex strings to either fname_list or fname_kept_list
+ * based on whether each pack has a corresponding .keep file or not.
+ * Packs without a .keep file are not to be kept if we are going to
+ * pack everything into one file.
*/
-static void get_non_kept_pack_filenames(struct string_list *fname_list,
- const struct string_list *extra_keep)
+static void collect_pack_filenames(struct string_list *fname_list,
+ struct string_list *fname_kept_list,
+ const struct string_list *extra_keep)
{
DIR *dir;
struct dirent *e;
@@ -112,21 +114,20 @@ static void get_non_kept_pack_filenames(struct string_list *fname_list,
size_t len;
int i;
+ if (!strip_suffix(e->d_name, ".pack", &len))
+ continue;
+
for (i = 0; i < extra_keep->nr; i++)
if (!fspathcmp(e->d_name, extra_keep->items[i].string))
break;
- if (extra_keep->nr > 0 && i < extra_keep->nr)
- continue;
-
- if (!strip_suffix(e->d_name, ".pack", &len))
- continue;
fname = xmemdupz(e->d_name, len);
- if (!file_exists(mkpath("%s/%s.keep", packdir, fname)))
- string_list_append_nodup(fname_list, fname);
+ if ((extra_keep->nr > 0 && i < extra_keep->nr) ||
+ (file_exists(mkpath("%s/%s.keep", packdir, fname))))
+ string_list_append_nodup(fname_kept_list, fname);
else
- free(fname);
+ string_list_append_nodup(fname_list, fname);
}
closedir(dir);
}
@@ -440,6 +441,7 @@ int cmd_repack(int argc, const char **argv, const char *prefix)
struct string_list names = STRING_LIST_INIT_DUP;
struct string_list rollback = STRING_LIST_INIT_NODUP;
struct string_list existing_packs = STRING_LIST_INIT_DUP;
+ struct string_list existing_kept_packs = STRING_LIST_INIT_DUP;
struct pack_geometry *geometry = NULL;
struct strbuf line = STRBUF_INIT;
int i, ext, ret;
@@ -572,9 +574,10 @@ int cmd_repack(int argc, const char **argv, const char *prefix)
if (use_delta_islands)
strvec_push(&cmd.args, "--delta-islands");
+ collect_pack_filenames(&existing_packs, &existing_kept_packs,
+ &keep_pack_list);
+
if (pack_everything & ALL_INTO_ONE) {
- get_non_kept_pack_filenames(&existing_packs, &keep_pack_list);
-
repack_promisor_objects(&po_args, &names);
if (existing_packs.nr && delete_redundant) {
@@ -683,17 +686,19 @@ int cmd_repack(int argc, const char **argv, const char *prefix)
reprepare_packed_git(the_repository);
if (delete_redundant) {
- const int hexsz = the_hash_algo->hexsz;
int opts = 0;
- string_list_sort(&names);
- for_each_string_list_item(item, &existing_packs) {
- char *sha1;
- size_t len = strlen(item->string);
- if (len < hexsz)
- continue;
- sha1 = item->string + len - hexsz;
- if (!string_list_has_string(&names, sha1))
- remove_redundant_pack(packdir, item->string);
+ if (pack_everything & ALL_INTO_ONE) {
+ const int hexsz = the_hash_algo->hexsz;
+ string_list_sort(&names);
+ for_each_string_list_item(item, &existing_packs) {
+ char *sha1;
+ size_t len = strlen(item->string);
+ if (len < hexsz)
+ continue;
+ sha1 = item->string + len - hexsz;
+ if (!string_list_has_string(&names, sha1))
+ remove_redundant_pack(packdir, item->string);
+ }
}
if (geometry) {
@@ -739,6 +744,7 @@ int cmd_repack(int argc, const char **argv, const char *prefix)
string_list_clear(&names, 0);
string_list_clear(&rollback, 0);
string_list_clear(&existing_packs, 0);
+ string_list_clear(&existing_kept_packs, 0);
clear_pack_geometry(geometry);
strbuf_release(&line);
--
2.33.0.96.g73915697e6
