builtin/pull: make hash-size independent

Instead of using get_oid_hex and GIT_SHA1_HEXSZ, use parse_oid_hex to
avoid the need for a constant and simplify the code.

Additionally, fix some comments to refer to object IDs instead of SHA-1
and update a constant used to provide an allocation hint.

Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

diff --git a/builtin/pull.c b/builtin/pull.c
index 33db889955402168f95083d741d4094db89cb503..9bd6a78081c2b2ff7b53cb98d8f1183bd9275ad8 100644 (file)
--- a/builtin/pull.c
+++ b/builtin/pull.c
@@ -369,9 +369,10 @@ static void get_merge_heads(struct oid_array *merge_heads)
 
        fp = xfopen(filename, "r");
        while (strbuf_getline_lf(&sb, fp) != EOF) {
-               if (get_oid_hex(sb.buf, &oid))
-                       continue;  /* invalid line: does not start with SHA1 */
-               if (starts_with(sb.buf + GIT_SHA1_HEXSZ, "\tnot-for-merge\t"))
+               const char *p;
+               if (parse_oid_hex(sb.buf, &oid, &p))
+                       continue;  /* invalid line: does not start with object ID */
+               if (starts_with(p, "\tnot-for-merge\t"))
                        continue;  /* ref is not-for-merge */
                oid_array_append(merge_heads, &oid);
        }
@@ -760,7 +761,7 @@ static int get_rebase_fork_point(struct object_id *fork_point, const char *repo,
        cp.no_stderr = 1;
        cp.git_cmd = 1;
 
-       ret = capture_command(&cp, &sb, GIT_SHA1_HEXSZ);
+       ret = capture_command(&cp, &sb, GIT_MAX_HEXSZ);
        if (ret)
                goto cleanup;
 
@@ -805,7 +806,7 @@ static int get_octopus_merge_base(struct object_id *merge_base,
 }
 
 /**
- * Given the current HEAD SHA1, the merge head returned from git-fetch and the
+ * Given the current HEAD oid, the merge head returned from git-fetch and the
  * fork point calculated by get_rebase_fork_point(), runs git-rebase with the
  * appropriate arguments and returns its exit status.
  */