Subject: [PATCH] blame: add option to print tips (--tips)

From: Edmundo Carmona Antoranz <[email-masked]>
Date: Sun, 22 Jan 2017 15:28:55 -0600

---
 builtin/blame.c | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/builtin/blame.c b/builtin/blame.c
index 126b8c9e5..4bc449f40 100644
--- a/builtin/blame.c
+++ b/builtin/blame.c
@@ -1884,6 +1884,7 @@ static const char *format_time(unsigned long time, const char *tz_str,
 #define OUTPUT_NO_AUTHOR       0200
 #define OUTPUT_SHOW_EMAIL	0400
 #define OUTPUT_LINE_PORCELAIN 01000
+#define OUTPUT_SHOW_TIPS      02000
 
 static void emit_porcelain_details(struct origin *suspect, int repeat)
 {
@@ -1939,14 +1940,18 @@ static void emit_other(struct scoreboard *sb, struct blame_entry *ent, int opt)
 	struct commit_info ci;
 	char hex[GIT_SHA1_HEXSZ + 1];
 	int show_raw_time = !!(opt & OUTPUT_RAW_TIMESTAMP);
+	int revision_length = (opt & OUTPUT_LONG_OBJECT_NAME) ? GIT_SHA1_HEXSZ : abbrev;
 
 	get_commit_info(suspect->commit, &ci, 1);
 	sha1_to_hex_r(hex, suspect->commit->object.oid.hash);
 
+	if (opt & OUTPUT_SHOW_TIPS)
+		printf("\t%.*s: %s\n", revision_length, hex, ci.summary.buf);
+
 	cp = nth_line(sb, ent->lno);
 	for (cnt = 0; cnt < ent->num_lines; cnt++) {
 		char ch;
-		int length = (opt & OUTPUT_LONG_OBJECT_NAME) ? GIT_SHA1_HEXSZ : abbrev;
+		int length = revision_length;
 
 		if (suspect->commit->object.flags & UNINTERESTING) {
 			if (blank_boundary)
@@ -2609,6 +2614,7 @@ int cmd_blame(int argc, const char **argv, const char *prefix)
 		{ OPTION_CALLBACK, 'C', NULL, &opt, N_("score"), N_("Find line copies within and across files"), PARSE_OPT_OPTARG, blame_copy_callback },
 		{ OPTION_CALLBACK, 'M', NULL, &opt, N_("score"), N_("Find line movements within and across files"), PARSE_OPT_OPTARG, blame_move_callback },
 		OPT_STRING_LIST('L', NULL, &range_list, N_("n,m"), N_("Process only line range n,m, counting from 1")),
+		OPT_BIT(0, "tips", &output_option, N_("Show tips before content lines"), OUTPUT_SHOW_TIPS),
 		OPT__ABBREV(&abbrev),
 		OPT_END()
 	};
-- 
2.11.0.rc1