[PATCH v4 12/15] pick: libify "pick_help_msg()"

[Christian Couder <chriscool@tuxfamily.org>]

This function gives an help message when pick or revert failed.

Signed-off-by: Christian Couder <chriscool@tuxfamily.org>
---
 builtin-revert.c |   23 +----------------------
 pick.c           |   22 ++++++++++++++++++++++
 pick.h           |    1 +
 3 files changed, 24 insertions(+), 22 deletions(-)

diff --git a/builtin-revert.c b/builtin-revert.c
index 4797ac5..e5250bd 100644
--- a/builtin-revert.c
+++ b/builtin-revert.c
@@ -142,27 +142,6 @@ static void set_author_ident_env(const char *message)
 			sha1_to_hex(commit->object.sha1));
 }
 
-static char *help_msg(const unsigned char *sha1)
-{
-	static char helpbuf[1024];
-	char *msg = getenv("GIT_CHERRY_PICK_HELP");
-
-	if (msg)
-		return msg;
-
-	strcpy(helpbuf, "  After resolving the conflicts,\n"
-	       "mark the corrected paths with 'git add <paths>' "
-	       "or 'git rm <paths>' and commit the result.");
-
-	if (!(flags & PICK_REVERSE)) {
-		sprintf(helpbuf + strlen(helpbuf),
-			"\nWhen commiting, use the option "
-			"'-c %s' to retain authorship and message.",
-			find_unique_abbrev(sha1, DEFAULT_ABBREV));
-	}
-	return helpbuf;
-}
-
 static void write_message(struct strbuf *msgbuf, const char *filename)
 {
 	struct lock_file msg_file;
@@ -211,7 +190,7 @@ static int revert_or_cherry_pick(int argc, const char **argv)
 		exit(1);
 	} else if (failed > 0) {
 		fprintf(stderr, "Automatic %s failed.%s\n",
-			me, help_msg(commit->object.sha1));
+			me, pick_help_msg(commit->object.sha1, flags));
 		write_message(&msgbuf, git_path("MERGE_MSG"));
 		rerere();
 		exit(1);
diff --git a/pick.c b/pick.c
index bb04c68..e1242f6 100644
--- a/pick.c
+++ b/pick.c
@@ -216,3 +216,25 @@ int pick_commit(struct commit *pick_commit, int mainline, int flags,
 
 	return ret;
 }
+
+char *pick_help_msg(const unsigned char *sha1, int flags)
+{
+	static char helpbuf[1024];
+	char *msg = getenv("GIT_CHERRY_PICK_HELP");
+
+	if (msg)
+		return msg;
+
+	strcpy(helpbuf, "  After resolving the conflicts,\n"
+	       "mark the corrected paths with 'git add <paths>' "
+	       "or 'git rm <paths>' and commit the result.");
+
+	if (!(flags & PICK_REVERSE)) {
+		sprintf(helpbuf + strlen(helpbuf),
+			"\nWhen commiting, use the option "
+			"'-c %s' to retain authorship and message.",
+			find_unique_abbrev(sha1, DEFAULT_ABBREV));
+	}
+	return helpbuf;
+}
+
diff --git a/pick.h b/pick.h
index 7a74ad8..115541a 100644
--- a/pick.h
+++ b/pick.h
@@ -9,5 +9,6 @@
 /* We don't need a PICK_QUIET. This is done by
  *	setenv("GIT_MERGE_VERBOSITY", "0", 1); */
 extern int pick_commit(struct commit *commit, int mainline, int flags, struct strbuf *msg);
+extern char *pick_help_msg(const unsigned char *sha1, int flags);
 
 #endif
-- 
1.6.4.271.ge010d