Merge branch 'jk/format-patch-from'

diff --git a/builtin/stripspace.c b/builtin/stripspace.c
index f16986c0ae811f6b998d20be39da1af6095fcfe8..e981dfb9f088cbbfdfb199700a6de17758bf1eca 100644 (file)
--- a/builtin/stripspace.c
+++ b/builtin/stripspace.c
@@ -30,7 +30,8 @@ static size_t cleanup(char *line, size_t len)
  *
  * If last line does not have a newline at the end, one is added.
  *
- * Enable skip_comments to skip every line starting with "#".
+ * Enable skip_comments to skip every line starting with comment
+ * character.
  */
 void stripspace(struct strbuf *sb, int skip_comments)
 {
@@ -45,7 +46,7 @@ void stripspace(struct strbuf *sb, int skip_comments)
                eol = memchr(sb->buf + i, '\n', sb->len - i);
                len = eol ? eol - (sb->buf + i) + 1 : sb->len - i;
 
-               if (skip_comments && len && sb->buf[i] == '#') {
+               if (skip_comments && len && sb->buf[i] == comment_line_char) {
                        newlen = 0;
                        continue;
                }
@@ -66,21 +67,53 @@ void stripspace(struct strbuf *sb, int skip_comments)
        strbuf_setlen(sb, j);
 }
 
+static void comment_lines(struct strbuf *buf)
+{
+       char *msg;
+       size_t len;
+
+       msg = strbuf_detach(buf, &len);
+       strbuf_add_commented_lines(buf, msg, len);
+       free(msg);
+}
+
+static const char *usage_msg = "\n"
+"  git stripspace [-s | --strip-comments] < input\n"
+"  git stripspace [-c | --comment-lines] < input";
+
 int cmd_stripspace(int argc, const char **argv, const char *prefix)
 {
        struct strbuf buf = STRBUF_INIT;
        int strip_comments = 0;
+       enum { INVAL = 0, STRIP_SPACE = 1, COMMENT_LINES = 2 } mode = STRIP_SPACE;
+
+       if (argc == 2) {
+               if (!strcmp(argv[1], "-s") ||
+                       !strcmp(argv[1], "--strip-comments")) {
+                        strip_comments = 1;
+               } else if (!strcmp(argv[1], "-c") ||
+                                        !strcmp(argv[1], "--comment-lines")) {
+                        mode = COMMENT_LINES;
+               } else {
+                       mode = INVAL;
+               }
+       } else if (argc > 1) {
+               mode = INVAL;
+       }
+
+       if (mode == INVAL)
+               usage(usage_msg);
 
-       if (argc == 2 && (!strcmp(argv[1], "-s") ||
-                               !strcmp(argv[1], "--strip-comments")))
-               strip_comments = 1;
-       else if (argc > 1)
-               usage("git stripspace [-s | --strip-comments] < input");
+       if (strip_comments || mode == COMMENT_LINES)
+               git_config(git_default_config, NULL);
 
        if (strbuf_read(&buf, 0, 1024) < 0)
                die_errno("could not read the input");
 
-       stripspace(&buf, strip_comments);
+       if (mode == STRIP_SPACE)
+               stripspace(&buf, strip_comments);
+       else
+               comment_lines(&buf);
 
        write_or_die(1, buf.buf, buf.len);
        strbuf_release(&buf);