tree-diff: rework diff_tree interface to be sha1 based

diff --git a/builtin/fmt-merge-msg.c b/builtin/fmt-merge-msg.c
index 1c040708696c8d6e81023b3261966fa751f14ad4..3906eda87712ea099e0e5876fff1fe28fc5716be 100644 (file)
--- a/builtin/fmt-merge-msg.c
+++ b/builtin/fmt-merge-msg.c
@@ -109,7 +109,7 @@ static int handle_line(char *line, struct merge_parents *merge_parents)
        if (len < 43 || line[40] != '\t')
                return 1;
 
-       if (!prefixcmp(line + 41, "not-for-merge"))
+       if (starts_with(line + 41, "not-for-merge"))
                return 0;
 
        if (line[41] != '\t')
@@ -155,16 +155,16 @@ static int handle_line(char *line, struct merge_parents *merge_parents)
        if (pulling_head) {
                origin = src;
                src_data->head_status |= 1;
-       } else if (!prefixcmp(line, "branch ")) {
+       } else if (starts_with(line, "branch ")) {
                origin_data->is_local_branch = 1;
                origin = line + 7;
                string_list_append(&src_data->branch, origin);
                src_data->head_status |= 2;
-       } else if (!prefixcmp(line, "tag ")) {
+       } else if (starts_with(line, "tag ")) {
                origin = line;
                string_list_append(&src_data->tag, origin + 4);
                src_data->head_status |= 2;
-       } else if (!prefixcmp(line, "remote-tracking branch ")) {
+       } else if (starts_with(line, "remote-tracking branch ")) {
                origin = line + strlen("remote-tracking branch ");
                string_list_append(&src_data->r_branch, origin);
                src_data->head_status |= 2;
@@ -605,7 +605,7 @@ int fmt_merge_msg(struct strbuf *in, struct strbuf *out,
                resolve_refdup("HEAD", head_sha1, 1, NULL);
        if (!current_branch)
                die("No current branch");
-       if (!prefixcmp(current_branch, "refs/heads/"))
+       if (starts_with(current_branch, "refs/heads/"))
                current_branch += 11;
 
        find_merge_parents(&merge_parents, in, head_sha1);