[PATCH 42/76] diff.c: convert --binary

[Nguyễn Thái Ngọc Duy]

Signed-off-by: Nguyễn Thái Ngọc Duy <pclo...@gmail.com>
---
 Documentation/diff-options.txt |  2 +-
 diff.c                         | 21 ++++++++++++++++-----
 2 files changed, 17 insertions(+), 6 deletions(-)

diff --git a/Documentation/diff-options.txt b/Documentation/diff-options.txt
index 4c0d40881b..08edbff503 100644
--- a/Documentation/diff-options.txt
+++ b/Documentation/diff-options.txt
@@ -425,7 +425,7 @@ endif::git-format-patch[]
 
 --binary::
        In addition to `--full-index`, output a binary diff that
-       can be applied with `git-apply`.
+       can be applied with `git-apply`. Implies `--patch`.
 
 --abbrev[=<n>]::
        Instead of showing the full 40-byte hexadecimal object
diff --git a/diff.c b/diff.c
index bee36fb276..0e93025af4 100644
--- a/diff.c
+++ b/diff.c
@@ -4855,6 +4855,18 @@ static int diff_opt_anchored(const struct option *opt,
        return 0;
 }
 
+static int diff_opt_binary(const struct option *opt,
+                          const char *arg, int unset)
+{
+       struct diff_options *options = opt->value;
+
+       BUG_ON_OPT_NEG(unset);
+       BUG_ON_OPT_ARG(arg);
+       enable_patch_output(&options->output_format);
+       options->flags.binary = 1;
+       return 0;
+}
+
 static int diff_opt_break_rewrites(const struct option *opt,
                                   const char *arg, int unset)
 {
@@ -5120,6 +5132,9 @@ static void prep_parse_options(struct diff_options 
*options)
                OPT_CALLBACK_F(0, "compact-summary", options, NULL,
                               N_("generate compact summary in diffstat"),
                               PARSE_OPT_NOARG, diff_opt_compact_summary),
+               OPT_CALLBACK_F(0, "binary", options, NULL,
+                              N_("output a binary diff that can be applied"),
+                              PARSE_OPT_NONEG | PARSE_OPT_NOARG, 
diff_opt_binary),
                OPT_CALLBACK_F(0, "output-indicator-new",
                               
&options->output_indicators[OUTPUT_INDICATOR_NEW],
                               N_("<char>"),
@@ -5233,11 +5248,7 @@ int diff_opt_parse(struct diff_options *options,
                return ac;
 
        /* flags options */
-       if (!strcmp(arg, "--binary")) {
-               enable_patch_output(&options->output_format);
-               options->flags.binary = 1;
-       }
-       else if (!strcmp(arg, "--full-index"))
+       if (!strcmp(arg, "--full-index"))
                options->flags.full_index = 1;
        else if (!strcmp(arg, "-a") || !strcmp(arg, "--text"))
                options->flags.text = 1;
-- 
2.20.0.482.g66447595a7