git/parse-options-cb.c

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#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)
{
*(timestamp_t *)(opt->value) = approxidate(arg);
return 0;
}
int parse_opt_expiry_date_cb(const struct option *opt, const char *arg,
int unset)
{
2018-04-21 03:13:13 +00:00
if (unset)
arg = "never";
if (parse_expiry_date(arg, (timestamp_t *)opt->value))
die(_("malformed expiration date '%s'"), arg);
return 0;
}
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)
{
struct object_id oid;
struct commit *commit;
if (!arg)
return -1;
if (get_oid(arg, &oid))
return error("malformed object name %s", arg);
Convert lookup_commit* to struct object_id Convert lookup_commit, lookup_commit_or_die, lookup_commit_reference, and lookup_commit_reference_gently to take struct object_id arguments. Introduce a temporary in parse_object buffer in order to convert this function. This is required since in order to convert parse_object and parse_object_buffer, lookup_commit_reference_gently and lookup_commit_or_die would need to be converted. Not introducing a temporary would therefore require that lookup_commit_or_die take a struct object_id *, but lookup_commit would take unsigned char *, leaving a confusing and hard-to-use interface. parse_object_buffer will lose this temporary in a later patch. This commit was created with manual changes to commit.c, commit.h, and object.c, plus the following semantic patch: @@ expression E1, E2; @@ - lookup_commit_reference_gently(E1.hash, E2) + lookup_commit_reference_gently(&E1, E2) @@ expression E1, E2; @@ - lookup_commit_reference_gently(E1->hash, E2) + lookup_commit_reference_gently(E1, E2) @@ expression E1; @@ - lookup_commit_reference(E1.hash) + lookup_commit_reference(&E1) @@ expression E1; @@ - lookup_commit_reference(E1->hash) + lookup_commit_reference(E1) @@ expression E1; @@ - lookup_commit(E1.hash) + lookup_commit(&E1) @@ expression E1; @@ - lookup_commit(E1->hash) + lookup_commit(E1) @@ expression E1, E2; @@ - lookup_commit_or_die(E1.hash, E2) + lookup_commit_or_die(&E1, E2) @@ expression E1, E2; @@ - lookup_commit_or_die(E1->hash, E2) + lookup_commit_or_die(E1, E2) Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-05-06 22:10:10 +00:00
commit = lookup_commit_reference(&oid);
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)
{
struct object_id oid;
if (unset) {
oid_array_clear(opt->value);
return 0;
}
if (!arg)
return -1;
if (get_oid(arg, &oid))
return error(_("malformed object name '%s'"), arg);
oid_array_append(opt->value, &oid);
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;
}
struct option *parse_options_concat(struct option *a, struct option *b)
{
struct option *ret;
size_t i, a_len = 0, b_len = 0;
for (i = 0; a[i].type != OPTION_END; i++)
a_len++;
for (i = 0; b[i].type != OPTION_END; i++)
b_len++;
ALLOC_ARRAY(ret, st_add3(a_len, b_len, 1));
for (i = 0; i < a_len; i++)
ret[i] = a[i];
for (i = 0; i < b_len; i++)
ret[a_len + i] = b[i];
ret[a_len + b_len] = b[b_len]; /* final OPTION_END */
return ret;
}
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;
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;
}