When writing objects/info/packs, we use the basename of each pack
(i.e., just the "pack-1234abcd.pack" part). We compute that manually by
adding "objdirlen + 6" to the name.
This _should_ work consistently, as we do not include non-local packs,
meaning everything should be in $objdir/pack/. Before f13d7db4af
(server-info.c: use pack_local like everybody else., 2005-12-05), this
was definitely true, since we computed "local" based on comparing the
objdir string. Since then, we're relying on the code on packfile.c to
match our expectations of p->pack_name and p->local.
I think our expectations do still hold today, but we can be a bit more
defensive by just using pack_basename() to get the base. That
future-proofs us, and should hopefully be more obviously safe to
somebody reading the code.
Signed-off-by: Jeff King <peff@xxxxxxxx>
---
packfile.c | 2 +-
packfile.h | 6 ++++++
server-info.c | 10 ++--------
3 files changed, 9 insertions(+), 9 deletions(-)
diff --git a/packfile.c b/packfile.c
index e7ca135ed5..a0f92b7eef 100644
--- a/packfile.c
+++ b/packfile.c
@@ -472,7 +472,7 @@ static unsigned int get_max_fd_limit(void)
#endif
}
-static const char *pack_basename(struct packed_git *p)
+const char *pack_basename(struct packed_git *p)
{
const char *ret = strrchr(p->pack_name, '/');
if (ret)
diff --git a/packfile.h b/packfile.h
index b40fc34fb2..45bf792d79 100644
--- a/packfile.h
+++ b/packfile.h
@@ -31,6 +31,12 @@ char *sha1_pack_name(const unsigned char *sha1);
*/
char *sha1_pack_index_name(const unsigned char *sha1);
+/*
+ * Return the basename of the packfile, omitting any containing directory
+ * (e.g., "pack-1234abcd[...].pack").
+ */
+const char *pack_basename(struct packed_git *p);
+
struct packed_git *parse_pack_index(unsigned char *sha1, const char *idx_path);
typedef void each_file_in_pack_dir_fn(const char *full_path, size_t full_path_len,
diff --git a/server-info.c b/server-info.c
index c9fbfd3a51..ab03c1b3c2 100644
--- a/server-info.c
+++ b/server-info.c
@@ -93,16 +93,13 @@ static struct pack_info {
int new_num;
} **info;
static int num_pack;
-static const char *objdir;
-static int objdirlen;
static struct pack_info *find_pack_by_name(const char *name)
{
int i;
for (i = 0; i < num_pack; i++) {
struct packed_git *p = info[i]->p;
- /* skip "/pack/" after ".git/objects" */
- if (!strcmp(p->pack_name + objdirlen + 6, name))
+ if (!strcmp(pack_basename(p), name))
return info[i];
}
return NULL;
@@ -196,9 +193,6 @@ static void init_pack_info(const char *infofile, int force)
int stale;
int i = 0;
- objdir = get_object_directory();
- objdirlen = strlen(objdir);
-
for (p = get_all_packs(the_repository); p; p = p->next) {
/* we ignore things on alternate path since they are
* not available to the pullers in general.
@@ -246,7 +240,7 @@ static int write_pack_info_file(FILE *fp)
{
int i;
for (i = 0; i < num_pack; i++) {
- if (fprintf(fp, "P %s\n", info[i]->p->pack_name + objdirlen + 6) < 0)
+ if (fprintf(fp, "P %s\n", pack_basename(info[i]->p)) < 0)
return -1;
}
if (fputc('\n', fp) == EOF)
--
2.21.0.714.gd1be1d035b
