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Make "diff-tree" take commit objects too, like "diff-cache" does.

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Sometimes it's just easier to not have to look up the "commit"->"tree"
translation by hand first. It's trivial to do inside diff-tree, and
it's just being polite.
This commit is contained in:
Linus Torvalds 2005-04-19 21:39:28 -07:00
parent e74f8f6aa7
commit abdb007d1f
1 changed files with 16 additions and 0 deletions
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16
diff-tree.c
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@ -179,6 +179,20 @@ static int diff_tree_sha1(const unsigned char *old, const unsigned char *new, co
return retval;
}
static void commit_to_tree(unsigned char *sha1)
{
void *buf;
char type[20];
unsigned long size;
buf = read_sha1_file(sha1, type, &size);
if (buf) {
if (!strcmp(type, "commit"))
get_sha1_hex(buf+5, sha1);
free(buf);
}
}
int main(int argc, char **argv)
{
unsigned char old[20], new[20];
@ -200,5 +214,7 @@ int main(int argc, char **argv)
if (argc != 3 || get_sha1_hex(argv[1], old) || get_sha1_hex(argv[2], new))
usage("diff-tree <tree sha1> <tree sha1>");
commit_to_tree(old);
commit_to_tree(new);
return diff_tree_sha1(old, new, "");
}