diff-parseopt: convert -S|-G

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 6b19c9749970f2c03902953570da2aa7fa85b086..8f01fbc2c167510b4b6c031d43149acb4c7334df 100644 (file)
--- a/diff.c
+++ b/diff.c
@@ -5056,6 +5056,28 @@ static int diff_opt_patience(const struct option *opt,
        return 0;
 }
 
+static int diff_opt_pickaxe_regex(const struct option *opt,
+                                 const char *arg, int unset)
+{
+       struct diff_options *options = opt->value;
+
+       BUG_ON_OPT_NEG(unset);
+       options->pickaxe = arg;
+       options->pickaxe_opts |= DIFF_PICKAXE_KIND_G;
+       return 0;
+}
+
+static int diff_opt_pickaxe_string(const struct option *opt,
+                                  const char *arg, int unset)
+{
+       struct diff_options *options = opt->value;
+
+       BUG_ON_OPT_NEG(unset);
+       options->pickaxe = arg;
+       options->pickaxe_opts |= DIFF_PICKAXE_KIND_S;
+       return 0;
+}
+
 static int diff_opt_relative(const struct option *opt,
                             const char *arg, int unset)
 {
@@ -5363,6 +5385,12 @@ static void prep_parse_options(struct diff_options *options)
                OPT_SET_INT_F(0, "ita-visible-in-index", &options->ita_invisible_in_index,
                              N_("treat 'git add -N' entries as real in the index"),
                              0, PARSE_OPT_NONEG),
+               OPT_CALLBACK_F('S', NULL, options, N_("<string>"),
+                              N_("look for differences that change the number of occurrences of the specified string"),
+                              0, diff_opt_pickaxe_string),
+               OPT_CALLBACK_F('G', NULL, options, N_("<regex>"),
+                              N_("look for differences that change the number of occurrences of the specified regex"),
+                              0, diff_opt_pickaxe_regex),
                { OPTION_CALLBACK, 0, "output", options, N_("<file>"),
                  N_("Output to a specific file"),
                  PARSE_OPT_NONEG, NULL, 0, diff_opt_output },
@@ -5415,15 +5443,6 @@ int diff_opt_parse(struct diff_options *options,
        }
 
        /* misc options */
-       else if ((argcount = short_opt('S', av, &optarg))) {
-               options->pickaxe = optarg;
-               options->pickaxe_opts |= DIFF_PICKAXE_KIND_S;
-               return argcount;
-       } else if ((argcount = short_opt('G', av, &optarg))) {
-               options->pickaxe = optarg;
-               options->pickaxe_opts |= DIFF_PICKAXE_KIND_G;
-               return argcount;
-       }
        else if (!strcmp(arg, "--pickaxe-all"))
                options->pickaxe_opts |= DIFF_PICKAXE_ALL;
        else if (!strcmp(arg, "--pickaxe-regex"))