From 28342a5d328fa11829dbe883837e21e08dd83388 Mon Sep 17 00:00:00 2001
From: Linus Torvalds <torvalds@ppc970.osdl.org>
Date: Sat, 18 Jun 2005 13:52:05 -0700
Subject: [PATCH] Make "pretty" commit logs always show merge information
Otherwise the "git log" information doesn't tell enough to make sense of
a merge.
I'll need to add some parent information for regular entries too, I
think, but the merge is more important.
---
commit.c | 24 ++++++++++++++++++++++++
1 file changed, 24 insertions(+)
diff --git a/commit.c b/commit.c
index 9fa03ef030..60047a06d3 100644
--- a/commit.c
+++ b/commit.c
@@ -222,10 +222,29 @@ static int is_empty_line(const char *line, int len)
return !len;
}
+static int add_parent_info(enum cmit_fmt fmt, char *buf, const char *line, int parents)
+{
+ int offset = 0;
+ switch (parents) {
+ case 1:
+ break;
+ case 2:
+ /* Go back to the previous line: 40 characters of previous parent, and one '\n' */
+ offset = sprintf(buf, "Merge: %.40s\n", line-41);
+ /* Fallthrough */
+ default:
+ /* Replace the previous '\n' with a space */
+ buf[offset-1] = ' ';
+ offset += sprintf(buf + offset, "%.40s\n", line+7);
+ }
+ return offset;
+}
+
unsigned long pretty_print_commit(enum cmit_fmt fmt, const char *msg, unsigned long len, char *buf, unsigned long space)
{
int hdr = 1, body = 0;
unsigned long offset = 0;
+ int parents = 0;
for (;;) {
const char *line = msg;
@@ -257,6 +276,11 @@ unsigned long pretty_print_commit(enum cmit_fmt fmt, const char *msg, unsigned l
offset += linelen;
continue;
}
+ if (!memcmp(line, "parent ", 7)) {
+ if (linelen != 48)
+ die("bad parent line in commit");
+ offset += add_parent_info(fmt, buf + offset, line, ++parents);
+ }
if (!memcmp(line, "author ", 7))
offset += add_author_info(fmt, buf + offset, line, linelen);
continue;
--
2.40.0