FREE_AND_NULL(options->parseopts);
}
-static int opt_arg(const char *arg, int arg_short, const char *arg_long, int *val)
-{
- char c, *eq;
- int len;
-
- if (*arg != '-')
- return 0;
- c = *++arg;
- if (!c)
- return 0;
- if (c == arg_short) {
- c = *++arg;
- if (!c)
- return 1;
- if (val && isdigit(c)) {
- char *end;
- int n = strtoul(arg, &end, 10);
- if (*end)
- return 0;
- *val = n;
- return 1;
- }
- return 0;
- }
- if (c != '-')
- return 0;
- arg++;
- eq = strchrnul(arg, '=');
- len = eq - arg;
- if (!len || strncmp(arg, arg_long, len))
- return 0;
- if (*eq) {
- int n;
- char *end;
- if (!isdigit(*++eq))
- return 0;
- n = strtoul(eq, &end, 10);
- if (*end)
- return 0;
- *val = n;
- }
- return 1;
-}
-
int parse_long_opt(const char *opt, const char **argv,
const char **optarg)
{
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();
/*
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
return 0;
}
+static int diff_opt_line_prefix(const struct option *opt,
+ const char *optarg, int unset)
+{
+ struct diff_options *options = opt->value;
+
+ BUG_ON_OPT_NEG(unset);
+ options->line_prefix = optarg;
+ options->line_prefix_length = strlen(options->line_prefix);
+ graph_setup_line_prefix(options);
+ return 0;
+}
+
+static int diff_opt_no_prefix(const struct option *opt,
+ const char *optarg, int unset)
+{
+ struct diff_options *options = opt->value;
+
+ BUG_ON_OPT_NEG(unset);
+ BUG_ON_OPT_ARG(optarg);
+ options->a_prefix = "";
+ options->b_prefix = "";
+ return 0;
+}
+
static enum parse_opt_result diff_opt_output(struct parse_opt_ctx_t *ctx,
const struct option *opt,
const char *arg, int unset)
OPT_SET_INT('z', NULL, &options->line_termination,
N_("do not munge pathnames and use NULs as output field terminators in --raw or --numstat"),
0),
+ OPT__ABBREV(&options->abbrev),
+ OPT_STRING_F(0, "src-prefix", &options->a_prefix, N_("<prefix>"),
+ N_("show the given source prefix instead of \"a/\""),
+ PARSE_OPT_NONEG),
+ OPT_STRING_F(0, "dst-prefix", &options->b_prefix, N_("<prefix>"),
+ N_("show the given source prefix instead of \"b/\""),
+ PARSE_OPT_NONEG),
+ OPT_CALLBACK_F(0, "line-prefix", options, N_("<prefix>"),
+ N_("prepend an additional prefix to every line of output"),
+ PARSE_OPT_NONEG, diff_opt_line_prefix),
+ OPT_CALLBACK_F(0, "no-prefix", options, NULL,
+ N_("do not show any source or destination prefix"),
+ PARSE_OPT_NONEG | PARSE_OPT_NOARG, diff_opt_no_prefix),
+ OPT_INTEGER_F(0, "inter-hunk-context", &options->interhunkcontext,
+ N_("show context between diff hunks up to the specified number of lines"),
+ PARSE_OPT_NONEG),
OPT_CALLBACK_F(0, "output-indicator-new",
&options->output_indicators[OUTPUT_INDICATOR_NEW],
N_("<char>"),
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 },
const char **av, int ac, const char *prefix)
{
const char *arg = av[0];
- const char *optarg;
- int argcount;
if (!prefix)
prefix = "";
}
/* 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"))
- options->abbrev = DEFAULT_ABBREV;
- else if (skip_prefix(arg, "--abbrev=", &arg)) {
- options->abbrev = strtoul(arg, NULL, 10);
- if (options->abbrev < MINIMUM_ABBREV)
- options->abbrev = MINIMUM_ABBREV;
- else if (the_hash_algo->hexsz < options->abbrev)
- options->abbrev = the_hash_algo->hexsz;
- }
- else if ((argcount = parse_long_opt("src-prefix", av, &optarg))) {
- options->a_prefix = optarg;
- return argcount;
- }
- else if ((argcount = parse_long_opt("line-prefix", av, &optarg))) {
- options->line_prefix = optarg;
- options->line_prefix_length = strlen(options->line_prefix);
- graph_setup_line_prefix(options);
- return argcount;
- }
- else if ((argcount = parse_long_opt("dst-prefix", av, &optarg))) {
- options->b_prefix = optarg;
- return argcount;
- }
- else if (!strcmp(arg, "--no-prefix"))
- options->a_prefix = options->b_prefix = "";
- else if (opt_arg(arg, '\0', "inter-hunk-context",
- &options->interhunkcontext))
- ;
else
return 0;
return 1;