[PATCH] NUL terminate diff-tree header lines under -z.

Thomas Glanzmann noticed that diff-tree -z HEAD piped to
diff-helper -z did not work.  Since diff-helper -z expects NUL
terminated lines, we should generate such.

The output side of the diff-helper should always be using '\n'
termination; earlier it used the same line_termination used for
the input side, which was a mistake.

Signed-off-by: Junio C Hamano <junkio@cox.net>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

diff --git a/diff-helper.c b/diff-helper.c
index 2385575..c977a1b 100644 (file)
--- a/diff-helper.c
+++ b/diff-helper.c
@@ -121,7 +121,7 @@ int main(int ac, const char **av) {
                if (status) {
                unrecognized:
                        diff_flush(diff_output_style);
-                       printf("%s%c", sb1.buf, line_termination);
+                       printf("%s\n", sb1.buf);
                }
        }
        if (detect_rename)

diff --git a/diff-tree.c b/diff-tree.c
index 0fd28f1..2ec0d6f 100644 (file)
--- a/diff-tree.c
+++ b/diff-tree.c
@@ -277,7 +277,18 @@ static int call_diff_flush(void)
        if (nr_paths)
                diffcore_pathspec(paths);
        if (header) {
-               printf("%s", header);
+               if (diff_output_format == DIFF_FORMAT_MACHINE) {
+                       const char *ep, *cp;
+                       for (cp = header; *cp; cp = ep) {
+                               ep = strchr(cp, '\n');
+                               if (ep == 0) ep = cp + strlen(cp);
+                               printf("%.*s%c", ep-cp, cp, 0);
+                               if (*ep) ep++;
+                       }
+               }
+               else {
+                       printf("%s", header);
+               }
                header = NULL;
        }
        diff_flush(diff_output_format);