From 1a9eb3b9d50367bee8fe85022684d812816fe531 Mon Sep 17 00:00:00 2001 From: Junio C Hamano Date: Fri, 22 Sep 2006 16:17:58 -0700 Subject: [PATCH] git-diff/git-apply: make diff output a bit friendlier to GNU patch (part 2) Somebody was wondering on #git channel why a git generated diff does not apply with GNU patch when the filename contains a SP. It is because GNU patch expects to find TAB (and trailing timestamp) on ---/+++ (old_name and new_name) lines after the filenames. The "diff --git" output format was carefully designed to be compatible with GNU patch where it can, but whitespace characters were always a pain. This adds an extra TAB (but not trailing timestamp) to old_name and new_name lines of git-diff output when the filename has a SP in it. An earlier patch updated git-apply to prepare for this. Signed-off-by: Junio C Hamano --- diff.c | 20 +++++++++++++++++--- 1 file changed, 17 insertions(+), 3 deletions(-) diff --git a/diff.c b/diff.c index 33153787b..b026c737b 100644 --- a/diff.c +++ b/diff.c @@ -204,11 +204,18 @@ static void emit_rewrite_diff(const char *name_a, struct diff_filespec *two) { int lc_a, lc_b; + const char *name_a_tab, *name_b_tab; + + name_a_tab = strchr(name_a, ' ') ? "\t" : ""; + name_b_tab = strchr(name_b, ' ') ? "\t" : ""; + diff_populate_filespec(one, 0); diff_populate_filespec(two, 0); lc_a = count_lines(one->data, one->size); lc_b = count_lines(two->data, two->size); - printf("--- a/%s\n+++ b/%s\n@@ -", name_a, name_b); + printf("--- a/%s%s\n+++ b/%s%s\n@@ -", + name_a, name_a_tab, + name_b, name_b_tab); print_line_count(lc_a); printf(" +"); print_line_count(lc_b); @@ -474,8 +481,15 @@ static void fn_out_consume(void *priv, char *line, unsigned long len) const char *reset = diff_get_color(ecbdata->color_diff, DIFF_RESET); if (ecbdata->label_path[0]) { - printf("%s--- %s%s\n", set, ecbdata->label_path[0], reset); - printf("%s+++ %s%s\n", set, ecbdata->label_path[1], reset); + const char *name_a_tab, *name_b_tab; + + name_a_tab = strchr(ecbdata->label_path[0], ' ') ? "\t" : ""; + name_b_tab = strchr(ecbdata->label_path[1], ' ') ? "\t" : ""; + + printf("%s--- %s%s%s\n", + set, ecbdata->label_path[0], reset, name_a_tab); + printf("%s+++ %s%s%s\n", + set, ecbdata->label_path[1], reset, name_b_tab); ecbdata->label_path[0] = ecbdata->label_path[1] = NULL; } -- 2.30.2