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author | Junio C Hamano <gitster@pobox.com> | 2013-12-27 14:58:19 -0800 |
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committer | Junio C Hamano <gitster@pobox.com> | 2013-12-27 14:58:19 -0800 |
commit | 53b2a5ff30cde96c5d62f60600996a0a95847842 (patch) | |
tree | e7b1e93f7654832e50bf052e69329a93a8d8bcd6 | |
parent | 73b063130befa7475316a142343de87da61f31e3 (diff) | |
parent | 40a4f5a7bf0ffee4fa1fb954b1ebf5daba5bae75 (diff) | |
download | git-53b2a5ff30cde96c5d62f60600996a0a95847842.tar.gz |
Merge branch 'jk/name-pack-after-byte-representation'
Two packfiles that contain the same set of objects have
traditionally been named identically, but that made repacking a
repository that is already fully packed without any cruft with a
different packing parameter cumbersome. Update the convention to
name the packfile after the bytestream representation of the data,
not after the set of objects in it.
* jk/name-pack-after-byte-representation:
pack-objects doc: treat output filename as opaque
pack-objects: name pack files after trailer hash
sha1write: make buffer const-correct
-rw-r--r-- | Documentation/git-pack-objects.txt | 3 | ||||
-rw-r--r-- | csum-file.c | 6 | ||||
-rw-r--r-- | csum-file.h | 2 | ||||
-rw-r--r-- | pack-write.c | 8 | ||||
-rw-r--r-- | pack.h | 2 | ||||
-rwxr-xr-x | t/t5302-pack-index.sh | 4 |
6 files changed, 9 insertions, 16 deletions
diff --git a/Documentation/git-pack-objects.txt b/Documentation/git-pack-objects.txt index d94edcd4b4..cdab9ed503 100644 --- a/Documentation/git-pack-objects.txt +++ b/Documentation/git-pack-objects.txt @@ -51,8 +51,7 @@ base-name:: <base-name> to determine the name of the created file. When this option is used, the two files are written in <base-name>-<SHA-1>.{pack,idx} files. <SHA-1> is a hash - of the sorted object names to make the resulting filename - based on the pack content, and written to the standard + based on the pack content and is written to the standard output of the command. --stdout:: diff --git a/csum-file.c b/csum-file.c index 53f5375b6c..465971c7f3 100644 --- a/csum-file.c +++ b/csum-file.c @@ -11,7 +11,7 @@ #include "progress.h" #include "csum-file.h" -static void flush(struct sha1file *f, void *buf, unsigned int count) +static void flush(struct sha1file *f, const void *buf, unsigned int count) { if (0 <= f->check_fd && count) { unsigned char check_buffer[8192]; @@ -86,13 +86,13 @@ int sha1close(struct sha1file *f, unsigned char *result, unsigned int flags) return fd; } -int sha1write(struct sha1file *f, void *buf, unsigned int count) +int sha1write(struct sha1file *f, const void *buf, unsigned int count) { while (count) { unsigned offset = f->offset; unsigned left = sizeof(f->buffer) - offset; unsigned nr = count > left ? left : count; - void *data; + const void *data; if (f->do_crc) f->crc32 = crc32(f->crc32, buf, nr); diff --git a/csum-file.h b/csum-file.h index 3b540bdc21..9dedb038ea 100644 --- a/csum-file.h +++ b/csum-file.h @@ -34,7 +34,7 @@ extern struct sha1file *sha1fd(int fd, const char *name); extern struct sha1file *sha1fd_check(const char *name); extern struct sha1file *sha1fd_throughput(int fd, const char *name, struct progress *tp); extern int sha1close(struct sha1file *, unsigned char *, unsigned int); -extern int sha1write(struct sha1file *, void *, unsigned int); +extern int sha1write(struct sha1file *, const void *, unsigned int); extern void sha1flush(struct sha1file *f); extern void crc32_begin(struct sha1file *); extern uint32_t crc32_end(struct sha1file *); diff --git a/pack-write.c b/pack-write.c index ca9e63be18..ddc174e1ad 100644 --- a/pack-write.c +++ b/pack-write.c @@ -44,14 +44,13 @@ static int need_large_offset(off_t offset, const struct pack_idx_option *opts) */ const char *write_idx_file(const char *index_name, struct pack_idx_entry **objects, int nr_objects, const struct pack_idx_option *opts, - unsigned char *sha1) + const unsigned char *sha1) { struct sha1file *f; struct pack_idx_entry **sorted_by_sha, **list, **last; off_t last_obj_offset = 0; uint32_t array[256]; int i, fd; - git_SHA_CTX ctx; uint32_t index_version; if (nr_objects) { @@ -114,9 +113,6 @@ const char *write_idx_file(const char *index_name, struct pack_idx_entry **objec } sha1write(f, array, 256 * 4); - /* compute the SHA1 hash of sorted object names. */ - git_SHA1_Init(&ctx); - /* * Write the actual SHA1 entries.. */ @@ -128,7 +124,6 @@ const char *write_idx_file(const char *index_name, struct pack_idx_entry **objec sha1write(f, &offset, 4); } sha1write(f, obj->sha1, 20); - git_SHA1_Update(&ctx, obj->sha1, 20); if ((opts->flags & WRITE_IDX_STRICT) && (i && !hashcmp(list[-2]->sha1, obj->sha1))) die("The same object %s appears twice in the pack", @@ -178,7 +173,6 @@ const char *write_idx_file(const char *index_name, struct pack_idx_entry **objec sha1write(f, sha1, 20); sha1close(f, NULL, ((opts->flags & WRITE_IDX_VERIFY) ? CSUM_CLOSE : CSUM_FSYNC)); - git_SHA1_Final(sha1, &ctx); return index_name; } @@ -76,7 +76,7 @@ struct pack_idx_entry { struct progress; typedef int (*verify_fn)(const unsigned char*, enum object_type, unsigned long, void*, int*); -extern const char *write_idx_file(const char *index_name, struct pack_idx_entry **objects, int nr_objects, const struct pack_idx_option *, unsigned char *sha1); +extern const char *write_idx_file(const char *index_name, struct pack_idx_entry **objects, int nr_objects, const struct pack_idx_option *, const unsigned char *sha1); extern int check_pack_crc(struct packed_git *p, struct pack_window **w_curs, off_t offset, off_t len, unsigned int nr); extern int verify_pack_index(struct packed_git *); extern int verify_pack(struct packed_git *, verify_fn fn, struct progress *, uint32_t); diff --git a/t/t5302-pack-index.sh b/t/t5302-pack-index.sh index fe82025d4a..4bbb718751 100755 --- a/t/t5302-pack-index.sh +++ b/t/t5302-pack-index.sh @@ -174,11 +174,11 @@ test_expect_success \ test_expect_success \ '[index v1] 5) pack-objects happily reuses corrupted data' \ 'pack4=$(git pack-objects test-4 <obj-list) && - test -f "test-4-${pack1}.pack"' + test -f "test-4-${pack4}.pack"' test_expect_success \ '[index v1] 6) newly created pack is BAD !' \ - 'test_must_fail git verify-pack -v "test-4-${pack1}.pack"' + 'test_must_fail git verify-pack -v "test-4-${pack4}.pack"' test_expect_success \ '[index v2] 1) stream pack to repository' \ |