diff.c: convert -u|-p|--patch

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

diff --git a/diff.c b/diff.c
index 80b4af23d71808988b5602d79be1fc9a2694caa9..a4a40e4aa8b38e9850fdf7cd3b3801c4bbb01f64 100644 (file)
--- a/diff.c
+++ b/diff.c
@@ -4870,6 +4870,13 @@ static int parse_objfind_opt(struct diff_options *opt, const char *arg)
 static void prep_parse_options(struct diff_options *options)
 {
        struct option parseopts[] = {
+               OPT_GROUP(N_("Diff output format options")),
+               OPT_BITOP('p', "patch", &options->output_format,
+                         N_("generate patch"),
+                         DIFF_FORMAT_PATCH, DIFF_FORMAT_NO_OUTPUT),
+               OPT_BITOP('u', NULL, &options->output_format,
+                         N_("generate patch"),
+                         DIFF_FORMAT_PATCH, DIFF_FORMAT_NO_OUTPUT),
                OPT_END()
        };
 
@@ -4898,8 +4905,7 @@ int diff_opt_parse(struct diff_options *options,
                return ac;
 
        /* Output format options */
-       if (!strcmp(arg, "-p") || !strcmp(arg, "-u") || !strcmp(arg, "--patch")
-           || opt_arg(arg, 'U', "unified", &options->context))
+       if (opt_arg(arg, 'U', "unified", &options->context))
                enable_patch_output(&options->output_format);
        else if (!strcmp(arg, "--raw"))
                options->output_format |= DIFF_FORMAT_RAW;