From 3ab0fb0646d25266ec5bebd1420f691fc5a13d8a Mon Sep 17 00:00:00 2001 From: Jonathan Tan Date: Fri, 11 Aug 2017 13:36:14 -0700 Subject: [PATCH 1/2] sha1_file: set whence in storage-specific info fn Move the setting of oi->whence to sha1_loose_object_info() and packed_object_info(). This allows sha1_object_info_extended() to not need to know about the delta base cache. This will be useful during a future refactoring in which packfile-related functions, including the handling of the delta base cache, will be moved to a separate file. Signed-off-by: Jonathan Tan Signed-off-by: Junio C Hamano --- sha1_file.c | 13 ++++++------- 1 file changed, 6 insertions(+), 7 deletions(-) diff --git a/sha1_file.c b/sha1_file.c index b60ae15f70..910109fd9c 100644 --- a/sha1_file.c +++ b/sha1_file.c @@ -2444,6 +2444,9 @@ int packed_object_info(struct packed_git *p, off_t obj_offset, hashclr(oi->delta_base_sha1); } + oi->whence = in_delta_base_cache(p, obj_offset) ? OI_DBCACHED : + OI_PACKED; + out: unuse_pack(&w_curs); return type; @@ -2973,6 +2976,7 @@ static int sha1_loose_object_info(const unsigned char *sha1, if (oi->sizep == &size_scratch) oi->sizep = NULL; strbuf_release(&hdrbuf); + oi->whence = OI_LOOSE; return (status < 0) ? status : 0; } @@ -3010,10 +3014,8 @@ int sha1_object_info_extended(const unsigned char *sha1, struct object_info *oi, if (!find_pack_entry(real, &e)) { /* Most likely it's a loose object. */ - if (!sha1_loose_object_info(real, oi, flags)) { - oi->whence = OI_LOOSE; + if (!sha1_loose_object_info(real, oi, flags)) return 0; - } /* Not a loose object; someone else may have just packed it. */ if (flags & OBJECT_INFO_QUICK) { @@ -3036,10 +3038,7 @@ int sha1_object_info_extended(const unsigned char *sha1, struct object_info *oi, if (rtype < 0) { mark_bad_packed_object(e.p, real); return sha1_object_info_extended(real, oi, 0); - } else if (in_delta_base_cache(e.p, e.offset)) { - oi->whence = OI_DBCACHED; - } else { - oi->whence = OI_PACKED; + } else if (oi->whence == OI_PACKED) { oi->u.packed.offset = e.offset; oi->u.packed.pack = e.p; oi->u.packed.is_delta = (rtype == OBJ_REF_DELTA || From 789bf26b07dbdd5985e30136f4ba638bb9c7f00e Mon Sep 17 00:00:00 2001 From: Jonathan Tan Date: Fri, 11 Aug 2017 13:36:15 -0700 Subject: [PATCH 2/2] sha1_file: remove read_packed_sha1() Use read_object() in its place instead. This avoids duplication of code. This makes force_object_loose() slightly slower (because of a redundant check of loose object storage), but only in the error case. Signed-off-by: Jonathan Tan Signed-off-by: Junio C Hamano --- sha1_file.c | 26 +------------------------- 1 file changed, 1 insertion(+), 25 deletions(-) diff --git a/sha1_file.c b/sha1_file.c index 910109fd9c..0f758eabfd 100644 --- a/sha1_file.c +++ b/sha1_file.c @@ -3062,30 +3062,6 @@ int sha1_object_info(const unsigned char *sha1, unsigned long *sizep) return type; } -static void *read_packed_sha1(const unsigned char *sha1, - enum object_type *type, unsigned long *size) -{ - struct pack_entry e; - void *data; - - if (!find_pack_entry(sha1, &e)) - return NULL; - data = cache_or_unpack_entry(e.p, e.offset, size, type); - if (!data) { - /* - * We're probably in deep shit, but let's try to fetch - * the required object anyway from another pack or loose. - * This should happen only in the presence of a corrupted - * pack, and is better than failing outright. - */ - error("failed to read object %s at offset %"PRIuMAX" from %s", - sha1_to_hex(sha1), (uintmax_t)e.offset, e.p->pack_name); - mark_bad_packed_object(e.p, sha1); - data = read_object(sha1, type, size); - } - return data; -} - int pretend_sha1_file(void *buf, unsigned long len, enum object_type type, unsigned char *sha1) { @@ -3468,7 +3444,7 @@ int force_object_loose(const unsigned char *sha1, time_t mtime) if (has_loose_object(sha1)) return 0; - buf = read_packed_sha1(sha1, &type, &len); + buf = read_object(sha1, &type, &len); if (!buf) return error("cannot read sha1_file for %s", sha1_to_hex(sha1)); hdrlen = xsnprintf(hdr, sizeof(hdr), "%s %lu", typename(type), len) + 1;