Merge branch 'cc/maint-commit-reflog-msg' into maint

* cc/maint-commit-reflog-msg:
  commit: use value of GIT_REFLOG_ACTION env variable as reflog message

Author: gitster

builtin/commit.c

@@ -1252,13 +1252,16 @@ int cmd_commit(int argc, const char **argv, const char *prefix)
 	}
 
 	/* Determine parents */
+	reflog_msg = getenv("GIT_REFLOG_ACTION");
 	if (initial_commit) {
-		reflog_msg = "commit (initial)";
+		if (!reflog_msg)
+			reflog_msg = "commit (initial)";
 	} else if (amend) {
 		struct commit_list *c;
 		struct commit *commit;
 
-		reflog_msg = "commit (amend)";
+		if (!reflog_msg)
+			reflog_msg = "commit (amend)";
 		commit = lookup_commit(head_sha1);
 		if (!commit || parse_commit(commit))
 			die("could not parse HEAD commit");
@@ -1269,7 +1272,8 @@ int cmd_commit(int argc, const char **argv, const char *prefix)
 		struct strbuf m = STRBUF_INIT;
 		FILE *fp;
 
-		reflog_msg = "commit (merge)";
+		if (!reflog_msg)
+			reflog_msg = "commit (merge)";
 		pptr = &commit_list_insert(lookup_commit(head_sha1), pptr)->next;
 		fp = fopen(git_path("MERGE_HEAD"), "r");
 		if (fp == NULL)
@@ -1292,7 +1296,8 @@ int cmd_commit(int argc, const char **argv, const char *prefix)
 		if (allow_fast_forward)
 			parents = reduce_heads(parents);
 	} else {
-		reflog_msg = "commit";
+		if (!reflog_msg)
+			reflog_msg = "commit";
 		pptr = &commit_list_insert(lookup_commit(head_sha1), pptr)->next;
 	}
 

t/t3501-revert-cherry-pick.sh

@@ -47,7 +47,8 @@ test_expect_success 'cherry-pick after renaming branch' '
 	git cherry-pick added &&
 	test $(git rev-parse HEAD^) = $(git rev-parse rename2) &&
 	test -f opos &&
-	grep "Add extra line at the end" opos
+	grep "Add extra line at the end" opos &&
+	git reflog -1 | grep cherry-pick
 
 '
 
@@ -57,7 +58,8 @@ test_expect_success 'revert after renaming branch' '
 	git revert added &&
 	test $(git rev-parse HEAD^) = $(git rev-parse rename1) &&
 	test -f spoo &&
-	! grep "Add extra line at the end" spoo
+	! grep "Add extra line at the end" spoo &&
+	git reflog -1 | grep revert
 
 '