The path of a loose object contains its hash value encoded into two
substrings of 2 and 38 hexadecimal digits separated by a slash. The
first part is handed to for_each_file_in_obj_subdir() in decoded form as
subdir_nr. The current code builds a full hexadecimal representation of
the hash in a temporary buffer, then uses get_oid_hex() to decode it.
Avoid the intermediate step by taking subdir_nr as-is and using
hex_to_bytes() directly on the second substring. That's shorter and
easier.
Signed-off-by: Rene Scharfe <l.s.r@xxxxxx>
---
sha1_file.c | 24 +++++++++++-------------
1 file changed, 11 insertions(+), 13 deletions(-)
diff --git a/sha1_file.c b/sha1_file.c
index 10c3a0083d..a3c32d91d1 100644
--- a/sha1_file.c
+++ b/sha1_file.c
@@ -1884,6 +1884,7 @@ int for_each_file_in_obj_subdir(unsigned int subdir_nr,
DIR *dir;
struct dirent *de;
int r = 0;
+ struct object_id oid;
if (subdir_nr > 0xff)
BUG("invalid loose object subdirectory: %x", subdir_nr);
@@ -1901,6 +1902,8 @@ int for_each_file_in_obj_subdir(unsigned int subdir_nr,
return r;
}
+ oid.hash[0] = subdir_nr;
+
while ((de = readdir(dir))) {
if (is_dot_or_dotdot(de->d_name))
continue;
@@ -1908,20 +1911,15 @@ int for_each_file_in_obj_subdir(unsigned int subdir_nr,
strbuf_setlen(path, baselen);
strbuf_addf(path, "/%s", de->d_name);
- if (strlen(de->d_name) == GIT_SHA1_HEXSZ - 2) {
- char hex[GIT_MAX_HEXSZ+1];
- struct object_id oid;
-
- xsnprintf(hex, sizeof(hex), "%02x%s",
- subdir_nr, de->d_name);
- if (!get_oid_hex(hex, &oid)) {
- if (obj_cb) {
- r = obj_cb(&oid, path->buf, data);
- if (r)
- break;
- }
- continue;
+ if (strlen(de->d_name) == GIT_SHA1_HEXSZ - 2 &&
+ !hex_to_bytes(oid.hash + 1, de->d_name,
+ GIT_SHA1_RAWSZ - 1)) {
+ if (obj_cb) {
+ r = obj_cb(&oid, path->buf, data);
+ if (r)
+ break;
}
+ continue;
}
if (cruft_cb) {
--
2.15.0
