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[PATCH 09/17] builtin/update-index: convert to using the_hash_algo

From
brian m. carlson <sandals@crustytoothpaste.net>
Date
Jul 8, 2018, 23:36 UTC
Message-ID
<20180708233638.520172-10-sandals@crustytoothpaste.net>
In-Reply-To
<20180708233638.520172-1-sandals@crustytoothpaste.net>

Switch from using GIT_SHA1_HEXSZ to the_hash_algo to make the parsing of the index information hash independent.

Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net>
---
 builtin/update-index.c | 9 +++++----
 1 file changed, 5 insertions(+), 4 deletions(-)
diff --git a/builtin/update-index.c b/builtin/update-index.c
index a8709a26ec..031cef5229 100644
--- a/builtin/update-index.c
+++ b/builtin/update-index.c
@@ -492,6 +492,7 @@ static void update_one(const char *path)
 
 static void read_index_info(int nul_term_line)
 {
+	const int hexsz = the_hash_algo->hexsz;
 	struct strbuf buf = STRBUF_INIT;
 	struct strbuf uq = STRBUF_INIT;
 	strbuf_getline_fn getline_fn;
@@ -529,7 +530,7 @@ static void read_index_info(int nul_term_line)
 		mode = ul;
 
 		tab = strchr(ptr, '\t');
-		if (!tab || tab - ptr < GIT_SHA1_HEXSZ + 1)
+		if (!tab || tab - ptr < hexsz + 1)
 			goto bad_line;
 
 		if (tab[-2] == ' ' && '0' <= tab[-1] && tab[-1] <= '3') {
@@ -542,8 +543,8 @@ static void read_index_info(int nul_term_line)
 			ptr = tab + 1; /* point at the head of path */
 		}
 
-		if (get_oid_hex(tab - GIT_SHA1_HEXSZ, &oid) ||
-			tab[-(GIT_SHA1_HEXSZ + 1)] != ' ')
+		if (get_oid_hex(tab - hexsz, &oid) ||
+			tab[-(hexsz + 1)] != ' ')
 			goto bad_line;
 
 		path_name = ptr;
@@ -571,7 +572,7 @@ static void read_index_info(int nul_term_line)
 			 * ptr[-1] points at tab,
 			 * ptr[-41] is at the beginning of sha1
 			 */
-			ptr[-(GIT_SHA1_HEXSZ + 2)] = ptr[-1] = 0;
+			ptr[-(hexsz + 2)] = ptr[-1] = 0;
 			if (add_cacheinfo(mode, &oid, path_name, stage))
 				die("git update-index: unable to update %s",
 				    path_name);
Previous: brian m. carlsonNext: brian m. carlson
Message 18 of 37 in “object_id part 14”
  1. 00/17 object_id part 14brian m. carlson, Jul 8, 2018
  2. 01/17 cache: update object ID functions for the_hash_algobrian m. carlson, Jul 8, 2018
  3. Jacob KellerJul 9, 2018
  4. Eric SunshineJul 9, 2018
  5. Jacob KellerJul 9, 2018
  6. brian m. carlsonJul 9, 2018
  7. 04/17 commit: express tree entry constants in terms of the_hash_algobrian m. carlson, Jul 8, 2018
  8. 06/17 sha1-name: use the_hash_algo when parsing object namesbrian m. carlson, Jul 8, 2018
  9. 05/17 strbuf: allocate space with GIT_MAX_HEXSZbrian m. carlson, Jul 8, 2018
  10. 10/17 builtin/update-index: simplify parsing of cacheinfobrian m. carlson, Jul 8, 2018
  11. 11/17 builtin/fmt-merge-msg: make hash independentbrian m. carlson, Jul 8, 2018
  12. 14/17 diff: switch GIT_SHA1_HEXSZ to use the_hash_algobrian m. carlson, Jul 8, 2018
  13. 13/17 builtin/merge-recursive: make hash independentbrian m. carlson, Jul 8, 2018
  14. 17/17 pretty: switch hard-coded constants to the_hash_algobrian m. carlson, Jul 8, 2018
  15. 15/17 log-tree: switch GIT_SHA1_HEXSZ to the_hash_algo->hexszbrian m. carlson, Jul 8, 2018
  16. 16/17 sha1-file: convert constants to uses of the_hash_algobrian m. carlson, Jul 8, 2018
  17. 12/17 builtin/merge: switch to use the_hash_algobrian m. carlson, Jul 8, 2018
  18. 09/17 builtin/update-index: convert to using the_hash_algobrian m. carlson, Jul 8, 2018
  19. 07/17 commit: increase commit message buffer sizebrian m. carlson, Jul 8, 2018
  20. Derrick StoleeJul 9, 2018
  21. Stefan BellerJul 9, 2018
  22. Brandon WilliamsJul 9, 2018
  23. Junio C HamanoJul 9, 2018
  24. Brandon WilliamsJul 9, 2018
  25. Junio C HamanoJul 9, 2018
  26. brian m. carlsonJul 9, 2018
  27. Junio C HamanoJul 10, 2018
  28. Ben PeartJul 10, 2018
  29. brian m. carlsonJul 11, 2018
  30. Junio C HamanoJul 11, 2018
  31. 08/17 refs/files-backend: use the_hash_algo for writing refsbrian m. carlson, Jul 8, 2018
  32. 02/17 tree-walk: replace hard-coded constants with the_hash_algobrian m. carlson, Jul 8, 2018
  33. 03/17 hex: switch to using the_hash_algobrian m. carlson, Jul 8, 2018
  34. Jacob KellerJul 9, 2018
  35. Derrick StoleeJul 9, 2018
  36. Michael HaggertyJul 14, 2018
  37. Junio C HamanoJul 16, 2018

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