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[PATCH v5 2/8] sha1_file: rename LOOKUP_UNKNOWN_OBJECT

From
JTJonathan Tan <jonathantanmy@google.com>
Date
Jun 22, 2017, 00:40 UTC
Message-ID
<87f05a9575974b091922b1bc234b177e862ea222.1498091579.git.jonathantanmy@google.com>
In-Reply-To
<cover.1498091579.git.jonathantanmy@google.com>

The LOOKUP_UNKNOWN_OBJECT flag was introduced in commit 46f0344 ("sha1_file: support reading from a loose object of unknown type", 2015-05-03) in order to support a feature in cat-file subsequently introduced in commit 39e4ae3 ("cat-file: teach cat-file a '--allow-unknown-type' option", 2015-05-03). Despite its name and location in cache.h, this flag is used neither in read_sha1_file_extended() nor in any of the lookup functions, but used only in sha1_object_info_extended().

Therefore rename this flag to OBJECT_INFO_ALLOW_UNKNOWN_TYPE, taking the name of the cat-file flag that invokes this feature, and move it closer to the declaration of sha1_object_info_extended(). Also add documentation for this flag.

OBJECT_INFO_ALLOW_UNKNOWN_TYPE is defined to 2, not 1, to avoid conflicting with LOOKUP_REPLACE_OBJECT. Avoidance of this conflict is necessary because sha1_object_info_extended() supports both flags.

Signed-off-by: Jonathan Tan <jonathantanmy@google.com>
---
 builtin/cat-file.c | 2 +-
 cache.h            | 3 ++-
 sha1_file.c        | 4 ++--
 3 files changed, 5 insertions(+), 4 deletions(-)
diff --git a/builtin/cat-file.c b/builtin/cat-file.c
index 4bffd7a2d..209374b3c 100644
--- a/builtin/cat-file.c
+++ b/builtin/cat-file.c
@@ -60,7 +60,7 @@ static int cat_one_file(int opt, const char *exp_type, const char *obj_name,
 	const char *path = force_path;
 
 	if (unknown_type)
-		flags |= LOOKUP_UNKNOWN_OBJECT;
+		flags |= OBJECT_INFO_ALLOW_UNKNOWN_TYPE;
 
 	if (get_sha1_with_context(obj_name, GET_SHA1_RECORD_PATH,
 				  oid.hash, &obj_context))
diff --git a/cache.h b/cache.h
index 4d92aae0e..e2ec45dfe 100644
--- a/cache.h
+++ b/cache.h
@@ -1207,7 +1207,6 @@ extern char *xdg_cache_home(const char *filename);
 
 /* object replacement */
 #define LOOKUP_REPLACE_OBJECT 1
-#define LOOKUP_UNKNOWN_OBJECT 2
 extern void *read_sha1_file_extended(const unsigned char *sha1, enum object_type *type, unsigned long *size, unsigned flag);
 static inline void *read_sha1_file(const unsigned char *sha1, enum object_type *type, unsigned long *size)
 {
@@ -1866,6 +1865,8 @@ struct object_info {
  */
 #define OBJECT_INFO_INIT {NULL}
 
+/* 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);
 extern int packed_object_info(struct packed_git *pack, off_t offset, struct object_info *);
 
diff --git a/sha1_file.c b/sha1_file.c
index a52b27541..ad04ea8e0 100644
--- a/sha1_file.c
+++ b/sha1_file.c
@@ -1964,7 +1964,7 @@ static int parse_sha1_header_extended(const char *hdr, struct object_info *oi,
 	 * we're obtaining the type using '--allow-unknown-type'
 	 * option.
 	 */
-	if ((flags & LOOKUP_UNKNOWN_OBJECT) && (type < 0))
+	if ((flags & OBJECT_INFO_ALLOW_UNKNOWN_TYPE) && (type < 0))
 		type = 0;
 	else if (type < 0)
 		die("invalid object type");
@@ -2941,7 +2941,7 @@ static int sha1_loose_object_info(const unsigned char *sha1,
 		return -1;
 	if (oi->disk_sizep)
 		*oi->disk_sizep = mapsize;
-	if ((flags & LOOKUP_UNKNOWN_OBJECT)) {
+	if ((flags & OBJECT_INFO_ALLOW_UNKNOWN_TYPE)) {
 		if (unpack_sha1_header_to_strbuf(&stream, map, mapsize, hdr, sizeof(hdr), &hdrbuf) < 0)
 			status = error("unable to unpack %s header with --allow-unknown-type",
 				       sha1_to_hex(sha1));
-- 
2.13.1.611.g7e3b11ae1-goog
Previous: Jonathan TanNext: Jonathan Tan
Message 50 of 65 in “Improvements to sha1_file”
  1. 0/4 Improvements to sha1_fileJonathan Tan, Jun 9, 2017
  2. 1/4 sha1_file: teach packed_object_info about typenameJonathan Tan, Jun 9, 2017
  3. Junio C HamanoJun 12, 2017
  4. 2/4 sha1_file: extract type and size from object_infoJonathan Tan, Jun 9, 2017
  5. Jeff KingJun 10, 2017
  6. Jonathan TanJun 12, 2017
  7. Jeff KingJun 12, 2017
  8. 4/4 sha1_file, fsck: add missing blob supportJonathan Tan, Jun 9, 2017
  9. 3/4 sha1_file: consolidate storage-agnostic object fnsJonathan Tan, Jun 9, 2017
  10. 0/4 Improvements to sha1_fileJonathan Tan, Jun 13, 2017
  11. 1/4 sha1_file: teach packed_object_info about typenameJonathan Tan, Jun 13, 2017
  12. 2/4 sha1_file: move delta base cache code upJonathan Tan, Jun 13, 2017
  13. Junio C HamanoJun 15, 2017
  14. 3/4 sha1_file: consolidate storage-agnostic object fnsJonathan Tan, Jun 13, 2017
  15. Junio C HamanoJun 15, 2017
  16. Jonathan TanJun 15, 2017
  17. Jeff KingJun 17, 2017
  18. Junio C HamanoJun 19, 2017
  19. 4/4 sha1_file, fsck: add missing blob supportJonathan Tan, Jun 13, 2017
  20. Junio C HamanoJun 15, 2017
  21. Jonathan TanJun 15, 2017
  22. Junio C HamanoJun 15, 2017
  23. 0/8 Improvements to sha1_fileJonathan Tan, Jun 20, 2017
  24. 1/8 sha1_file: teach packed_object_info about typenameJonathan Tan, Jun 20, 2017
  25. 2/8 sha1_file: rename LOOKUP_UNKNOWN_OBJECTJonathan Tan, Jun 20, 2017
  26. Junio C HamanoJun 21, 2017
  27. Jonathan TanJun 21, 2017
  28. 3/8 sha1_file: rename LOOKUP_REPLACE_OBJECTJonathan Tan, Jun 20, 2017
  29. Junio C HamanoJun 21, 2017
  30. 4/8 sha1_file: move delta base cache code upJonathan Tan, Jun 20, 2017
  31. 5/8 sha1_file: refactor read_objectJonathan Tan, Jun 20, 2017
  32. Junio C HamanoJun 21, 2017
  33. 6/8 sha1_file: improve sha1_object_info_extendedJonathan Tan, Jun 20, 2017
  34. Jeff KingJun 24, 2017
  35. Jonathan TanJun 26, 2017
  36. Junio C HamanoJun 26, 2017
  37. Jonathan TanJun 26, 2017
  38. Junio C HamanoJun 26, 2017
  39. 8/8 sha1_file: refactor has_sha1_file_with_flagsJonathan Tan, Jun 20, 2017
  40. 7/8 sha1_file: do not access pack if unneededJonathan Tan, Jun 20, 2017
  41. Junio C HamanoJun 21, 2017
  42. Jeff KingJun 24, 2017
  43. Junio C HamanoJun 24, 2017
  44. Jeff KingJun 24, 2017
  45. Jonathan TanJun 26, 2017
  46. Junio C HamanoJun 21, 2017
  47. Jeff KingJun 24, 2017
  48. 0/8 Improvements to sha1_fileJonathan Tan, Jun 22, 2017
  49. 1/8 sha1_file: teach packed_object_info about typenameJonathan Tan, Jun 22, 2017
  50. 2/8 sha1_file: rename LOOKUP_UNKNOWN_OBJECTJonathan Tan, Jun 22, 2017
  51. 3/8 sha1_file: rename LOOKUP_REPLACE_OBJECTJonathan Tan, Jun 22, 2017
  52. 8/8 sha1_file: refactor has_sha1_file_with_flagsJonathan Tan, Jun 22, 2017
  53. Christian CouderJul 18, 2017
  54. Jonathan TanJul 18, 2017
  55. Johannes SchindelinJul 19, 2017
  56. sha1_file: use access(), not lstat(), if possibleJonathan Tan, Jul 19, 2017
  57. Junio C HamanoJul 20, 2017
  58. Johannes SchindelinJul 22, 2017
  59. Junio C HamanoJul 22, 2017
  60. Johannes SchindelinJul 25, 2017
  61. 6/8 sha1_file: improve sha1_object_info_extendedJonathan Tan, Jun 22, 2017
  62. 5/8 sha1_file: refactor read_objectJonathan Tan, Jun 22, 2017
  63. 4/8 sha1_file: move delta base cache code upJonathan Tan, Jun 22, 2017
  64. 7/8 sha1_file: do not access pack if unneededJonathan Tan, Jun 22, 2017
  65. Junio C HamanoJun 22, 2017

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