Add "get_sha1()" helper function.
This allows the programs to use various simplified versions of
the SHA1 names, eg just say "HEAD" for the SHA1 pointed to by
the .git/HEAD file etc.
For example, this commit has been done with
git-commit-tree $(git-write-tree) -p HEAD
instead of the traditional "$(cat .git/HEAD)" syntax.
diff --git a/merge-base.c b/merge-base.c
index 2c40881..2ea4497 100644
--- a/merge-base.c
+++ b/merge-base.c
@@ -58,8 +58,8 @@
unsigned char rev1key[20], rev2key[20];
if (argc != 3 ||
- get_sha1_hex(argv[1], rev1key) ||
- get_sha1_hex(argv[2], rev2key)) {
+ get_sha1(argv[1], rev1key) ||
+ get_sha1(argv[2], rev2key)) {
usage("merge-base <commit-id> <commit-id>");
}
rev1 = lookup_commit(rev1key);