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-rw-r--r--ui-diff.c64
1 files changed, 31 insertions, 33 deletions
diff --git a/ui-diff.c b/ui-diff.c
index 5c864d9..a76a234 100644
--- a/ui-diff.c
+++ b/ui-diff.c
@@ -89,54 +89,52 @@ static void filepair_cb(struct diff_filepair *pair)
cgit_print_error("Error running diff");
}
-void cgit_print_diff(const char *head, const char *old_hex, const char *new_hex, char *path)
+void cgit_print_diff(const char *new_rev, const char *old_rev)
{
unsigned char sha1[20], sha2[20];
enum object_type type;
unsigned long size;
- struct commit *commit;
+ struct commit *commit, *commit2;
- html("<table class='diff'>");
- html("<tr><td>");
-
- if (head && !old_hex && !new_hex) {
- get_sha1(head, sha1);
- commit = lookup_commit_reference(sha1);
- if (commit && !parse_commit(commit))
- cgit_diff_commit(commit, filepair_cb);
- else
- cgit_print_error(fmt("Bad commit: %s", head));
- html("</td></tr>");
- html("</table>");
+ if (!new_rev)
+ new_rev = cgit_query_head;
+ get_sha1(new_rev, sha1);
+ type = sha1_object_info(sha1, &size);
+ if (type == OBJ_BAD) {
+ cgit_print_error(fmt("Bad object name: %s", new_rev));
+ return;
+ }
+ if (type != OBJ_COMMIT) {
+ cgit_print_error(fmt("Unhandled object type: %s",
+ typename(type)));
return;
}
- get_sha1(old_hex, sha1);
- get_sha1(new_hex, sha2);
+ commit = lookup_commit_reference(sha1);
+ if (!commit || parse_commit(commit))
+ cgit_print_error(fmt("Bad commit: %s", sha1_to_hex(sha1)));
- type = sha1_object_info(sha1, &size);
- if (type == OBJ_BAD) {
+ if (old_rev)
+ get_sha1(old_rev, sha2);
+ else if (commit->parents && commit->parents->item)
+ hashcpy(sha2, commit->parents->item->object.sha1);
+ else
+ hashclr(sha2);
+
+ if (!is_null_sha1(sha2)) {
type = sha1_object_info(sha2, &size);
if (type == OBJ_BAD) {
- cgit_print_error(fmt("Bad object names: %s, %s", old_hex, new_hex));
+ cgit_print_error(fmt("Bad object name: %s", sha1_to_hex(sha2)));
return;
}
+ commit2 = lookup_commit_reference(sha2);
+ if (!commit2 || parse_commit(commit2))
+ cgit_print_error(fmt("Bad commit: %s", sha1_to_hex(sha2)));
}
- switch(type) {
- case OBJ_BLOB:
- header(sha1, path, 0644, sha2, path, 0644);
- if (cgit_diff_files(sha1, sha2, print_line))
- cgit_print_error("Error running diff");
- break;
- case OBJ_TREE:
- cgit_diff_tree(sha1, sha2, filepair_cb);
- break;
- default:
- cgit_print_error(fmt("Unhandled object type: %s",
- typename(type)));
- break;
- }
+ html("<table class='diff'>");
+ html("<tr><td>");
+ cgit_diff_tree(sha2, sha1, filepair_cb);
html("</td></tr>");
html("</table>");
}