[PATCH 65/76] diff.c: convert --diff-filter

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Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@xxxxxxxxx>
---
 diff.c | 18 +++++++++---------
 1 file changed, 9 insertions(+), 9 deletions(-)

diff --git a/diff.c b/diff.c
index 2a943d47fd..fee45c5066 100644
--- a/diff.c
+++ b/diff.c
@@ -4756,10 +4756,13 @@ static unsigned filter_bit_tst(char status, const struct diff_options *opt)
 	return opt->filter & filter_bit[(int) status];
 }
 
-static int parse_diff_filter_opt(const char *optarg, struct diff_options *opt)
+static int diff_opt_diff_filter(const struct option *option,
+				const char *optarg, int unset)
 {
+	struct diff_options *opt = option->value;
 	int i, optch;
 
+	BUG_ON_OPT_NEG(unset);
 	prepare_filter_bits();
 
 	/*
@@ -4790,7 +4793,8 @@ static int parse_diff_filter_opt(const char *optarg, struct diff_options *opt)
 
 		bit = (0 <= optch && optch <= 'Z') ? filter_bit[optch] : 0;
 		if (!bit)
-			return optarg[i];
+			return error(_("unknown change class '%c' in --diff-filter=%s"),
+				     optarg[i], optarg);
 		if (negate)
 			opt->filter &= ~bit;
 		else
@@ -5409,6 +5413,9 @@ static void prep_parse_options(struct diff_options *options)
 		OPT_CALLBACK_F(0, "find-object", options, N_("<object-id>"),
 			       N_("look for differences that change the number of occurrences of the specified object"),
 			       PARSE_OPT_NONEG, diff_opt_find_object),
+		OPT_CALLBACK_F(0, "diff-filter", options, N_("[(A|C|D|M|R|T|U|X|B)...[*]]"),
+			       N_("select files by diff type"),
+			       PARSE_OPT_NONEG, diff_opt_diff_filter),
 		{ OPTION_CALLBACK, 0, "output", options, N_("<file>"),
 		  N_("Output to a specific file"),
 		  PARSE_OPT_NONEG, NULL, 0, diff_opt_output },
@@ -5461,13 +5468,6 @@ int diff_opt_parse(struct diff_options *options,
 	}
 
 	/* misc options */
-	else if ((argcount = parse_long_opt("diff-filter", av, &optarg))) {
-		int offending = parse_diff_filter_opt(optarg, options);
-		if (offending)
-			die("unknown change class '%c' in --diff-filter=%s",
-			    offending, optarg);
-		return argcount;
-	}
 	else if (!strcmp(arg, "--no-abbrev"))
 		options->abbrev = 0;
 	else if (!strcmp(arg, "--abbrev"))
-- 
2.20.0.482.g66447595a7




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