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authorLukas Fleischer <cgit@cryptocrack.de>2013-08-20 18:56:14 +0200
committerJason A. Donenfeld <Jason@zx2c4.com>2013-08-20 19:55:42 +0200
commit750f6462c9e1e20e87d2bce5ca2e7fd10e0d1ba6 (patch)
treea3b0e425d5f13e35b2a97d7fdb609bb8ada8ede7 /ui-patch.c
parentui-patch.c: Use log_tree_commit() to generate diffs (diff)
downloadcgit-pink-750f6462c9e1e20e87d2bce5ca2e7fd10e0d1ba6.tar.gz
cgit-pink-750f6462c9e1e20e87d2bce5ca2e7fd10e0d1ba6.zip
Allow for creating patch series
This allows for specifying a revision range using the id2 parameter of
/patch/. The output that is produced is similar to

    $ git format-patch --stdout id2..id

Signed-off-by: Lukas Fleischer <cgit@cryptocrack.de>
Diffstat (limited to '')
-rw-r--r--ui-patch.c23
1 files changed, 18 insertions, 5 deletions
diff --git a/ui-patch.c b/ui-patch.c
index 72c9749..bb39294 100644
--- a/ui-patch.c
+++ b/ui-patch.c
@@ -11,7 +11,7 @@
 #include "html.h"
 #include "ui-shared.h"
 
-void cgit_print_patch(char *hex, const char *prefix)
+void cgit_print_patch(char *hex, const char *old_rev, const char *prefix)
 {
 	struct rev_info rev;
 	struct commit *commit;
@@ -33,16 +33,29 @@ void cgit_print_patch(char *hex, const char *prefix)
 		return;
 	}
 
-	if (commit->parents && commit->parents->item) {
+	if (old_rev) {
+		if (get_sha1(old_rev, old_sha1)) {
+			cgit_print_error("Bad object id: %s", old_rev);
+			return;
+		}
+		if (!lookup_commit_reference(old_sha1)) {
+			cgit_print_error("Bad commit reference: %s", old_rev);
+			return;
+		}
+	} else if (commit->parents && commit->parents->item) {
 		hashcpy(old_sha1, commit->parents->item->object.sha1);
-		sprintf(rev_range, "%s..%s", sha1_to_hex(old_sha1),
-			sha1_to_hex(sha1));
 	} else {
 		hashclr(old_sha1);
+	}
+
+	if (is_null_sha1(old_sha1)) {
 		memcpy(rev_range, sha1_to_hex(sha1), 41);
+	} else {
+		sprintf(rev_range, "%s..%s", sha1_to_hex(old_sha1),
+			sha1_to_hex(sha1));
 	}
 
-	patchname = fmt("%s.patch", sha1_to_hex(sha1));
+	patchname = fmt("%s.patch", rev_range);
 	ctx.page.mimetype = "text/plain";
 	ctx.page.filename = patchname;
 	cgit_print_http_headers(&ctx);