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sha1_file: rename LOOKUP_REPLACE_OBJECT

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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@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Jonathan Tan
2017-06-21 17:40:19 -07:00
committed by Junio C Hamano
parent 19fc5e84a7
commit 1f0c0d36c1
3 changed files with 18 additions and 18 deletions
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17
cache.h
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@ -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);