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cat-file: make the options mutually exclusive

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We only parse the options if 2 or 3 arguments are specified.
Update 'struct option options[]' to use OPT_CMDMODE rather than
OPT_SET_INT to allow only one mutually exclusive option and avoid the
need for checking number of arguments. This was written by Junio C Hamano,
tested by me.

Helped-by: Junio C Hamano <gitster@pobox.com>
Signed-off-by: Karthik Nayak <karthik.188@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Karthik Nayak 2015-05-03 20:00:00 +05:30 committed by Junio C Hamano
parent 46f034483e
commit b48158ac94
1 changed files with 5 additions and 8 deletions
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13
builtin/cat-file.c
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@ -362,12 +362,12 @@ int cmd_cat_file(int argc, const char **argv, const char *prefix)
const struct option options[] = {
OPT_GROUP(N_("<type> can be one of: blob, tree, commit, tag")),
OPT_SET_INT('t', NULL, &opt, N_("show object type"), 't'),
OPT_SET_INT('s', NULL, &opt, N_("show object size"), 's'),
OPT_SET_INT('e', NULL, &opt,
OPT_CMDMODE('t', NULL, &opt, N_("show object type"), 't'),
OPT_CMDMODE('s', NULL, &opt, N_("show object size"), 's'),
OPT_CMDMODE('e', NULL, &opt,
N_("exit with zero when there's no error"), 'e'),
OPT_SET_INT('p', NULL, &opt, N_("pretty-print object's content"), 'p'),
OPT_SET_INT(0, "textconv", &opt,
OPT_CMDMODE('p', NULL, &opt, N_("pretty-print object's content"), 'p'),
OPT_CMDMODE(0, "textconv", &opt,
N_("for blob objects, run textconv on object's content"), 'c'),
{ OPTION_CALLBACK, 0, "batch", &batch, "format",
N_("show info and content of objects fed from the standard input"),
@ -380,9 +380,6 @@ int cmd_cat_file(int argc, const char **argv, const char *prefix)
git_config(git_cat_file_config, NULL);
if (argc != 3 && argc != 2)
usage_with_options(cat_file_usage, options);
argc = parse_options(argc, argv, prefix, options, cat_file_usage, 0);
if (opt) {