Commit c1a1d23111b4918798f2605c33130f2ab71bbe7a

Parents: a0f6669bdb74e58b0ddb3f4283209cd5e58c0eb9

From: John Keeping <john@keeping.me.uk>
Date: Sun Feb 13 15:29:06 2022 +0700

When walking through the history, it is useful to quickly see the same
file at the previous revision, so add a link to do this.

It would be nice to link to the correct line with an additional
fragment, but this requires significantly more work so it can be done as
an enhancement later.  (ent->s_lno is mostly the right thing, but it is
the line number in the post-image of the target commit whereas the link
is to the parent of that commit, i.e. the pre-image of the target.)

Suggested-by: Alejandro Colomar <alx.manpages@gmail.com>
Signed-off-by: John Keeping <john@keeping.me.uk>
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>

Stats

Changeset

 1
 2
 3
 4
 5
 6
 7
 8
 9
10
11
12
13
14
15
16
17
18
19
20

diff --git a/ui-blame.c b/ui-blame.c
index 4adec2b99e5f19af19109f92677def0e635e5e9a..aedce8dfd24aa0b4db686360120bdd04b0a0cd5f 100644
--- a/ui-blame.c
+++ b/ui-blame.c
@@ -54,6 +54,15 @@ 			 NULL, ctx.qry.head, oid_to_hex(oid), suspect->path);
 	html("</span>");
 	free(detail);
 
+	if (!parse_commit(suspect->commit) && suspect->commit->parents) {
+		struct commit *parent = suspect->commit->parents->item;
+
+		html(" ");
+		cgit_blame_link("^", "Blame the previous revision", NULL,
+				ctx.qry.head, oid_to_hex(&parent->object.oid),
+				suspect->path);
+	}
+
 	while (line++ < ent->num_lines)
 		html("\n");
 }