ce564eb1bd
Add a new callback function, parse_opt_unknown_cb(), which returns -2 to indicate that the corresponding option is unknown. This can be used to add "-h" documentation for an option that will be handled externally to parse_options(). Signed-off-by: Michael Haggerty <mhagger@alum.mit.edu> Signed-off-by: Junio C Hamano <gitster@pobox.com>
235 lines
5.1 KiB
C
235 lines
5.1 KiB
C
#include "git-compat-util.h"
|
|
#include "parse-options.h"
|
|
#include "cache.h"
|
|
#include "commit.h"
|
|
#include "color.h"
|
|
#include "string-list.h"
|
|
#include "argv-array.h"
|
|
#include "sha1-array.h"
|
|
|
|
/*----- some often used options -----*/
|
|
|
|
int parse_opt_abbrev_cb(const struct option *opt, const char *arg, int unset)
|
|
{
|
|
int v;
|
|
|
|
if (!arg) {
|
|
v = unset ? 0 : DEFAULT_ABBREV;
|
|
} else {
|
|
v = strtol(arg, (char **)&arg, 10);
|
|
if (*arg)
|
|
return opterror(opt, "expects a numerical value", 0);
|
|
if (v && v < MINIMUM_ABBREV)
|
|
v = MINIMUM_ABBREV;
|
|
else if (v > 40)
|
|
v = 40;
|
|
}
|
|
*(int *)(opt->value) = v;
|
|
return 0;
|
|
}
|
|
|
|
int parse_opt_approxidate_cb(const struct option *opt, const char *arg,
|
|
int unset)
|
|
{
|
|
*(unsigned long *)(opt->value) = approxidate(arg);
|
|
return 0;
|
|
}
|
|
|
|
int parse_opt_expiry_date_cb(const struct option *opt, const char *arg,
|
|
int unset)
|
|
{
|
|
return parse_expiry_date(arg, (unsigned long *)opt->value);
|
|
}
|
|
|
|
int parse_opt_color_flag_cb(const struct option *opt, const char *arg,
|
|
int unset)
|
|
{
|
|
int value;
|
|
|
|
if (!arg)
|
|
arg = unset ? "never" : (const char *)opt->defval;
|
|
value = git_config_colorbool(NULL, arg);
|
|
if (value < 0)
|
|
return opterror(opt,
|
|
"expects \"always\", \"auto\", or \"never\"", 0);
|
|
*(int *)opt->value = value;
|
|
return 0;
|
|
}
|
|
|
|
int parse_opt_verbosity_cb(const struct option *opt, const char *arg,
|
|
int unset)
|
|
{
|
|
int *target = opt->value;
|
|
|
|
if (unset)
|
|
/* --no-quiet, --no-verbose */
|
|
*target = 0;
|
|
else if (opt->short_name == 'v') {
|
|
if (*target >= 0)
|
|
(*target)++;
|
|
else
|
|
*target = 1;
|
|
} else {
|
|
if (*target <= 0)
|
|
(*target)--;
|
|
else
|
|
*target = -1;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
int parse_opt_commits(const struct option *opt, const char *arg, int unset)
|
|
{
|
|
unsigned char sha1[20];
|
|
struct commit *commit;
|
|
|
|
if (!arg)
|
|
return -1;
|
|
if (get_sha1(arg, sha1))
|
|
return error("malformed object name %s", arg);
|
|
commit = lookup_commit_reference(sha1);
|
|
if (!commit)
|
|
return error("no such commit %s", arg);
|
|
commit_list_insert(commit, opt->value);
|
|
return 0;
|
|
}
|
|
|
|
int parse_opt_object_name(const struct option *opt, const char *arg, int unset)
|
|
{
|
|
unsigned char sha1[20];
|
|
|
|
if (unset) {
|
|
sha1_array_clear(opt->value);
|
|
return 0;
|
|
}
|
|
if (!arg)
|
|
return -1;
|
|
if (get_sha1(arg, sha1))
|
|
return error(_("malformed object name '%s'"), arg);
|
|
sha1_array_append(opt->value, sha1);
|
|
return 0;
|
|
}
|
|
|
|
int parse_opt_tertiary(const struct option *opt, const char *arg, int unset)
|
|
{
|
|
int *target = opt->value;
|
|
*target = unset ? 2 : 1;
|
|
return 0;
|
|
}
|
|
|
|
int parse_options_concat(struct option *dst, size_t dst_size, struct option *src)
|
|
{
|
|
int i, j;
|
|
|
|
for (i = 0; i < dst_size; i++)
|
|
if (dst[i].type == OPTION_END)
|
|
break;
|
|
for (j = 0; i < dst_size; i++, j++) {
|
|
dst[i] = src[j];
|
|
if (src[j].type == OPTION_END)
|
|
return 0;
|
|
}
|
|
return -1;
|
|
}
|
|
|
|
int parse_opt_string_list(const struct option *opt, const char *arg, int unset)
|
|
{
|
|
struct string_list *v = opt->value;
|
|
|
|
if (unset) {
|
|
string_list_clear(v, 0);
|
|
return 0;
|
|
}
|
|
|
|
if (!arg)
|
|
return -1;
|
|
|
|
string_list_append(v, arg);
|
|
return 0;
|
|
}
|
|
|
|
int parse_opt_noop_cb(const struct option *opt, const char *arg, int unset)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* Report that the option is unknown, so that other code can handle
|
|
* it. This can be used as a callback together with
|
|
* OPTION_LOWLEVEL_CALLBACK to allow an option to be documented in the
|
|
* "-h" output even if it's not being handled directly by
|
|
* parse_options().
|
|
*/
|
|
int parse_opt_unknown_cb(const struct option *opt, const char *arg, int unset)
|
|
{
|
|
return -2;
|
|
}
|
|
|
|
/**
|
|
* Recreates the command-line option in the strbuf.
|
|
*/
|
|
static int recreate_opt(struct strbuf *sb, const struct option *opt,
|
|
const char *arg, int unset)
|
|
{
|
|
strbuf_reset(sb);
|
|
|
|
if (opt->long_name) {
|
|
strbuf_addstr(sb, unset ? "--no-" : "--");
|
|
strbuf_addstr(sb, opt->long_name);
|
|
if (arg) {
|
|
strbuf_addch(sb, '=');
|
|
strbuf_addstr(sb, arg);
|
|
}
|
|
} else if (opt->short_name && !unset) {
|
|
strbuf_addch(sb, '-');
|
|
strbuf_addch(sb, opt->short_name);
|
|
if (arg)
|
|
strbuf_addstr(sb, arg);
|
|
} else
|
|
return -1;
|
|
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* For an option opt, recreates the command-line option in opt->value which
|
|
* must be an char* initialized to NULL. This is useful when we need to pass
|
|
* the command-line option to another command. Since any previous value will be
|
|
* overwritten, this callback should only be used for options where the last
|
|
* one wins.
|
|
*/
|
|
int parse_opt_passthru(const struct option *opt, const char *arg, int unset)
|
|
{
|
|
static struct strbuf sb = STRBUF_INIT;
|
|
char **opt_value = opt->value;
|
|
|
|
if (recreate_opt(&sb, opt, arg, unset) < 0)
|
|
return -1;
|
|
|
|
if (*opt_value)
|
|
free(*opt_value);
|
|
|
|
*opt_value = strbuf_detach(&sb, NULL);
|
|
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* For an option opt, recreate the command-line option, appending it to
|
|
* opt->value which must be a argv_array. This is useful when we need to pass
|
|
* the command-line option, which can be specified multiple times, to another
|
|
* command.
|
|
*/
|
|
int parse_opt_passthru_argv(const struct option *opt, const char *arg, int unset)
|
|
{
|
|
static struct strbuf sb = STRBUF_INIT;
|
|
struct argv_array *opt_value = opt->value;
|
|
|
|
if (recreate_opt(&sb, opt, arg, unset) < 0)
|
|
return -1;
|
|
|
|
argv_array_push(opt_value, sb.buf);
|
|
|
|
return 0;
|
|
}
|