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[PATCH v4 09/11] Allow parse_pack_index on temporary files

From
Shawn O. Pearce <spearce@spearce.org>
Date
Apr 19, 2010, 14:23 UTC
Message-ID
<1271686990-16363-5-git-send-email-spearce@spearce.org>
In-Reply-To
<20100418115744.0000238b@unknown>

The easiest way to verify a pack index is to open it through the standard parse_pack_index function, permitting the header check to happen when the file is mapped. However, the dumb HTTP client needs to verify a pack index before its moved into its proper file name within the objects/pack directory, to prevent a corrupt index from being made available. So permit the caller to specify the exact path of the index file.

For now we're still using the final destination name within the sole call site in http.c, but eventually we will start to parse the temporary path instead.

Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
---
 No change from v3.
 cache.h     |    2 +-
 http.c      |    2 +-
 sha1_file.c |    3 +--
 3 files changed, 3 insertions(+), 4 deletions(-)
diff --git a/cache.h b/cache.h
index 0eba039..7db23ef 100644
--- a/cache.h
+++ b/cache.h
@@ -900,7 +900,7 @@ struct extra_have_objects {
 extern struct ref **get_remote_heads(int in, struct ref **list, int nr_match, char **match, unsigned int flags, struct extra_have_objects *);
 extern int server_supports(const char *feature);
 
-extern struct packed_git *parse_pack_index(unsigned char *sha1);
+extern struct packed_git *parse_pack_index(unsigned char *sha1, const char *idx_path);
 
 extern void prepare_packed_git(void);
 extern void reprepare_packed_git(void);
diff --git a/http.c b/http.c
index 95e3b8b..9c62632 100644
--- a/http.c
+++ b/http.c
@@ -932,7 +932,7 @@ static int fetch_and_setup_pack_index(struct packed_git **packs_head,
 	if (fetch_pack_index(sha1, base_url))
 		return -1;
 
-	new_pack = parse_pack_index(sha1);
+	new_pack = parse_pack_index(sha1, sha1_pack_index_name(sha1));
 	if (!new_pack)
 		return -1; /* parse_pack_index() already issued error message */
 	new_pack->next = *packs_head;
diff --git a/sha1_file.c b/sha1_file.c
index 4e82654..9f3f514 100644
--- a/sha1_file.c
+++ b/sha1_file.c
@@ -845,9 +845,8 @@ struct packed_git *add_packed_git(const char *path, int path_len, int local)
 	return p;
 }
 
-struct packed_git *parse_pack_index(unsigned char *sha1)
+struct packed_git *parse_pack_index(unsigned char *sha1, const char *idx_path)
 {
-	const char *idx_path = sha1_pack_index_name(sha1);
 	const char *path = sha1_pack_name(sha1);
 	struct packed_git *p = alloc_packed_git(strlen(path) + 1);
 
-- 
1.7.1.rc1.279.g22727
Previous: Shawn O. PearceNext: Shawn O. Pearce
Message 41 of 46 in “git fetch over http:// left my repo broken”
  1. Christian HalstrickApr 15, 2010
  2. Michael J GruberApr 15, 2010
  3. Ilari LiusvaaraApr 15, 2010
  4. Shawn O. PearceApr 15, 2010
  5. 0/6 detect dumb HTTP pack file corruptionShawn O. Pearce, Apr 15, 2010
  6. Junio C HamanoApr 17, 2010
  7. Shawn O. PearceApr 17, 2010
  8. 1/6 http.c: Remove bad free of static blockShawn O. Pearce, Apr 15, 2010
  9. 2/6 t5550-http-fetch: Use subshell for repository operationsShawn O. Pearce, Apr 15, 2010
  10. 3/6 http.c: Tiny refactoring of finish_http_pack_requestShawn O. Pearce, Apr 15, 2010
  11. 4/6 http.c: Drop useless != NULL test in finish_http_pack_requestShawn O. Pearce, Apr 15, 2010
  12. 5/6 http-fetch: Use index-pack rather than verify-pack to check packsShawn O. Pearce, Apr 15, 2010
  13. Johannes SixtApr 15, 2010
  14. 5/6 http-fetch: Use index-pack rather than verify-pack to check packsShawn O. Pearce, Apr 15, 2010
  15. Tay Ray ChuanApr 16, 2010
  16. Shawn O. PearceApr 17, 2010
  17. 6/6 http-fetch: Use temporary files for pack-*.idx until verifiedShawn O. Pearce, Apr 15, 2010
  18. Tay Ray ChuanApr 16, 2010
  19. 01/11 http.c: Remove bad free of static blockShawn O. Pearce, Apr 17, 2010
  20. 02/11 t5550-http-fetch: Use subshell for repository operationsShawn O. Pearce, Apr 17, 2010
  21. 03/11 http.c: Tiny refactoring of finish_http_pack_requestShawn O. Pearce, Apr 17, 2010
  22. 04/11 http.c: Drop useless != NULL test in finish_http_pack_requestShawn O. Pearce, Apr 17, 2010
  23. 05/11 http.c: Don't store destination name in request structuresShawn O. Pearce, Apr 17, 2010
  24. Tay Ray ChuanApr 18, 2010
  25. 06/11 http.c: Remove unnecessary strdup of sha1_to_hex resultShawn O. Pearce, Apr 17, 2010
  26. Tay Ray ChuanApr 18, 2010
  27. 07/11 Introduce close_pack_index to permit replacementShawn O. Pearce, Apr 17, 2010
  28. 08/11 Extract verify_pack_index for reuse from verify_packShawn O. Pearce, Apr 17, 2010
  29. 09/11 Allow parse_pack_index on temporary filesShawn O. Pearce, Apr 17, 2010
  30. 10/11 http-fetch: Use index-pack rather than verify-pack to check packsShawn O. Pearce, Apr 17, 2010
  31. Tay Ray ChuanApr 18, 2010
  32. 11/11 http-fetch: Use temporary files for pack-*.idx until verifiedShawn O. Pearce, Apr 17, 2010
  33. Tay Ray ChuanApr 18, 2010
  34. 00/11 Resend sp/maint-dumb-http-pack-reidxShawn O. Pearce, Apr 19, 2010
  35. Tay Ray ChuanApr 19, 2010
  36. Shawn O. PearceApr 19, 2010
  37. Tay Ray ChuanApr 20, 2010
  38. 06/11 http.c: Remove unnecessary strdup of sha1_to_hex resultShawn O. Pearce, Apr 19, 2010
  39. 07/11 Introduce close_pack_index to permit replacementShawn O. Pearce, Apr 19, 2010
  40. 08/11 Extract verify_pack_index for reuse from verify_packShawn O. Pearce, Apr 19, 2010
  41. 09/11 Allow parse_pack_index on temporary filesShawn O. Pearce, Apr 19, 2010
  42. 10/11 http-fetch: Use index-pack rather than verify-pack to check packsShawn O. Pearce, Apr 19, 2010
  43. Tay Ray ChuanApr 19, 2010
  44. 11/11 http-fetch: Use temporary files for pack-*.idx until verifiedShawn O. Pearce, Apr 19, 2010
  45. 6/6 http-fetch: Use temporary files for pack-*.idx until verifiedShawn O. Pearce, Apr 15, 2010
  46. Ilari LiusvaaraApr 15, 2010

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