[PATCH] Skip writing out sha1 files for objects in packed git.
Now, there's still a misfeature there, which is that when you create a new object, it doesn't check whether that object already exists in the pack-file, so you'll end up with a few recent objects that you really don't need (notably tree objects), and this patch fixes it. Signed-off-by: Junio C Hamano <junkio@cox.net> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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sha1_file.c
39
sha1_file.c
@ -891,31 +891,46 @@ void *read_object_with_reference(const unsigned char *sha1,
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}
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}
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static char *write_sha1_file_prepare(void *buf,
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unsigned long len,
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const char *type,
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unsigned char *sha1,
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unsigned char *hdr,
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int *hdrlen)
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{
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SHA_CTX c;
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/* Generate the header */
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*hdrlen = sprintf((char *)hdr, "%s %lu", type, len)+1;
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/* Sha1.. */
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SHA1_Init(&c);
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SHA1_Update(&c, hdr, *hdrlen);
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SHA1_Update(&c, buf, len);
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SHA1_Final(sha1, &c);
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return sha1_file_name(sha1);
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}
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int write_sha1_file(void *buf, unsigned long len, const char *type, unsigned char *returnsha1)
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{
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int size;
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unsigned char *compressed;
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z_stream stream;
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unsigned char sha1[20];
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SHA_CTX c;
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char *filename;
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static char tmpfile[PATH_MAX];
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unsigned char hdr[50];
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int fd, hdrlen, ret;
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/* Generate the header */
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hdrlen = sprintf((char *)hdr, "%s %lu", type, len)+1;
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/* Sha1.. */
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SHA1_Init(&c);
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SHA1_Update(&c, hdr, hdrlen);
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SHA1_Update(&c, buf, len);
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SHA1_Final(sha1, &c);
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/* Normally if we have it in the pack then we do not bother writing
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* it out into .git/objects/??/?{38} file.
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*/
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filename = write_sha1_file_prepare(buf, len, type, sha1, hdr, &hdrlen);
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if (returnsha1)
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memcpy(returnsha1, sha1, 20);
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filename = sha1_file_name(sha1);
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if (has_sha1_file(sha1))
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return 0;
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fd = open(filename, O_RDONLY);
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if (fd >= 0) {
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/*
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