The LOOKUP_REPLACE_OBJECT flag controls whether the
lookup_replace_object() function is invoked by
sha1_object_info_extended(), read_sha1_file_extended(), and
lookup_replace_object_extended(), but it is not immediately clear which
functions accept that flag.
Therefore restrict this flag to only sha1_object_info_extended(),
renaming it appropriately to OBJECT_INFO_LOOKUP_REPLACE and adding some
documentation. Update read_sha1_file_extended() to have a boolean
parameter instead, and delete lookup_replace_object_extended().
parse_sha1_header() also passes this flag to
parse_sha1_header_extended() since commit 46f0344 ("sha1_file: support
reading from a loose object of unknown type", 2015-05-03), but that has
had no effect since that commit. Therefore this patch also removes this
flag from that invocation.
Signed-off-by: Jonathan Tan <jonathantanmy@xxxxxxxxxx>
---
builtin/cat-file.c | 5 +++--
cache.h | 17 ++++++-----------
sha1_file.c | 13 ++++++++-----
3 files changed, 17 insertions(+), 18 deletions(-)
diff --git a/builtin/cat-file.c b/builtin/cat-file.c
index 209374b3c..923786c00 100644
--- a/builtin/cat-file.c
+++ b/builtin/cat-file.c
@@ -56,7 +56,7 @@ static int cat_one_file(int opt, const char *exp_type, const char *obj_name,
struct object_context obj_context;
struct object_info oi = OBJECT_INFO_INIT;
struct strbuf sb = STRBUF_INIT;
- unsigned flags = LOOKUP_REPLACE_OBJECT;
+ unsigned flags = OBJECT_INFO_LOOKUP_REPLACE;
const char *path = force_path;
if (unknown_type)
@@ -337,7 +337,8 @@ static void batch_object_write(const char *obj_name, struct batch_options *opt,
struct strbuf buf = STRBUF_INIT;
if (!data->skip_object_info &&
- sha1_object_info_extended(data->oid.hash, &data->info, LOOKUP_REPLACE_OBJECT) < 0) {
+ sha1_object_info_extended(data->oid.hash, &data->info,
+ OBJECT_INFO_LOOKUP_REPLACE)) {
printf("%s missing\n",
obj_name ? obj_name : oid_to_hex(&data->oid));
fflush(stdout);
diff --git a/cache.h b/cache.h
index e2ec45dfe..a3631b237 100644
--- a/cache.h
+++ b/cache.h
@@ -1205,12 +1205,12 @@ extern char *xdg_config_home(const char *filename);
*/
extern char *xdg_cache_home(const char *filename);
-/* object replacement */
-#define LOOKUP_REPLACE_OBJECT 1
-extern void *read_sha1_file_extended(const unsigned char *sha1, enum object_type *type, unsigned long *size, unsigned flag);
+extern void *read_sha1_file_extended(const unsigned char *sha1,
+ enum object_type *type,
+ unsigned long *size, int lookup_replace);
static inline void *read_sha1_file(const unsigned char *sha1, enum object_type *type, unsigned long *size)
{
- return read_sha1_file_extended(sha1, type, size, LOOKUP_REPLACE_OBJECT);
+ return read_sha1_file_extended(sha1, type, size, 1);
}
/*
@@ -1232,13 +1232,6 @@ static inline const unsigned char *lookup_replace_object(const unsigned char *sh
return do_lookup_replace_object(sha1);
}
-static inline const unsigned char *lookup_replace_object_extended(const unsigned char *sha1, unsigned flag)
-{
- if (!(flag & LOOKUP_REPLACE_OBJECT))
- return sha1;
- return lookup_replace_object(sha1);
-}
-
/* Read and unpack a sha1 file into memory, write memory to a sha1 file */
extern int sha1_object_info(const unsigned char *, unsigned long *);
extern int hash_sha1_file(const void *buf, unsigned long len, const char *type, unsigned char *sha1);
@@ -1865,6 +1858,8 @@ struct object_info {
*/
#define OBJECT_INFO_INIT {NULL}
+/* Invoke lookup_replace_object() on the given hash */
+#define OBJECT_INFO_LOOKUP_REPLACE 1
/* Allow reading from a loose object file of unknown/bogus type */
#define OBJECT_INFO_ALLOW_UNKNOWN_TYPE 2
extern int sha1_object_info_extended(const unsigned char *, struct object_info *, unsigned flags);
diff --git a/sha1_file.c b/sha1_file.c
index ad04ea8e0..ae44b32f3 100644
--- a/sha1_file.c
+++ b/sha1_file.c
@@ -2002,7 +2002,7 @@ int parse_sha1_header(const char *hdr, unsigned long *sizep)
struct object_info oi = OBJECT_INFO_INIT;
oi.sizep = sizep;
- return parse_sha1_header_extended(hdr, &oi, LOOKUP_REPLACE_OBJECT);
+ return parse_sha1_header_extended(hdr, &oi, 0);
}
static void *unpack_sha1_file(void *map, unsigned long mapsize, enum object_type *type, unsigned long *size, const unsigned char *sha1)
@@ -2969,7 +2969,9 @@ int sha1_object_info_extended(const unsigned char *sha1, struct object_info *oi,
struct cached_object *co;
struct pack_entry e;
int rtype;
- const unsigned char *real = lookup_replace_object_extended(sha1, flags);
+ const unsigned char *real = (flags & OBJECT_INFO_LOOKUP_REPLACE) ?
+ lookup_replace_object(sha1) :
+ sha1;
co = find_cached_object(real);
if (co) {
@@ -3025,7 +3027,7 @@ int sha1_object_info(const unsigned char *sha1, unsigned long *sizep)
oi.typep = &type;
oi.sizep = sizep;
- if (sha1_object_info_extended(sha1, &oi, LOOKUP_REPLACE_OBJECT) < 0)
+ if (sha1_object_info_extended(sha1, &oi, OBJECT_INFO_LOOKUP_REPLACE))
return -1;
return type;
}
@@ -3107,13 +3109,14 @@ static void *read_object(const unsigned char *sha1, enum object_type *type,
void *read_sha1_file_extended(const unsigned char *sha1,
enum object_type *type,
unsigned long *size,
- unsigned flag)
+ int lookup_replace)
{
void *data;
const struct packed_git *p;
const char *path;
struct stat st;
- const unsigned char *repl = lookup_replace_object_extended(sha1, flag);
+ const unsigned char *repl = lookup_replace ? lookup_replace_object(sha1)
+ : sha1;
errno = 0;
data = read_object(repl, type, size);
--
2.13.1.611.g7e3b11ae1-goog
