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-rw-r--r--diff.c36
1 files changed, 35 insertions, 1 deletions
diff --git a/diff.c b/diff.c
index 381cc8d4fd..dfdfa1a813 100644
--- a/diff.c
+++ b/diff.c
@@ -2826,6 +2826,15 @@ int diff_opt_parse(struct diff_options *options, const char **av, int ac)
DIFF_OPT_SET(options, FOLLOW_RENAMES);
else if (!strcmp(arg, "--color"))
DIFF_OPT_SET(options, COLOR_DIFF);
+ else if (!prefixcmp(arg, "--color=")) {
+ int value = git_config_colorbool(NULL, arg+8, -1);
+ if (value == 0)
+ DIFF_OPT_CLR(options, COLOR_DIFF);
+ else if (value > 0)
+ DIFF_OPT_SET(options, COLOR_DIFF);
+ else
+ return error("option `color' expects \"always\", \"auto\", or \"never\"");
+ }
else if (!strcmp(arg, "--no-color"))
DIFF_OPT_CLR(options, COLOR_DIFF);
else if (!strcmp(arg, "--color-words")) {
@@ -2893,6 +2902,8 @@ int diff_opt_parse(struct diff_options *options, const char **av, int ac)
;
else if (!prefixcmp(arg, "--output=")) {
options->file = fopen(arg + strlen("--output="), "w");
+ if (!options->file)
+ die_errno("Could not open '%s'", arg + strlen("--output="));
options->close_file = 1;
} else
return 0;
@@ -3520,6 +3531,29 @@ void diff_flush(struct diff_options *options)
separator++;
}
+ if (output_format & DIFF_FORMAT_NO_OUTPUT &&
+ DIFF_OPT_TST(options, EXIT_WITH_STATUS) &&
+ DIFF_OPT_TST(options, DIFF_FROM_CONTENTS)) {
+ /*
+ * run diff_flush_patch for the exit status. setting
+ * options->file to /dev/null should be safe, becaue we
+ * aren't supposed to produce any output anyway.
+ */
+ if (options->close_file)
+ fclose(options->file);
+ options->file = fopen("/dev/null", "w");
+ if (!options->file)
+ die_errno("Could not open /dev/null");
+ options->close_file = 1;
+ for (i = 0; i < q->nr; i++) {
+ struct diff_filepair *p = q->queue[i];
+ if (check_pair_status(p))
+ diff_flush_patch(p, options);
+ if (options->found_changes)
+ break;
+ }
+ }
+
if (output_format & DIFF_FORMAT_PATCH) {
if (separator) {
putc(options->line_termination, options->file);
@@ -3642,7 +3676,7 @@ static void diffcore_skip_stat_unmatch(struct diff_options *diffopt)
struct diff_filepair *p = q->queue[i];
/*
- * 1. Entries that come from stat info dirtyness
+ * 1. Entries that come from stat info dirtiness
* always have both sides (iow, not create/delete),
* one side of the object name is unknown, with
* the same mode and size. Keep the ones that