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![Patrick Steinhardt](/assets/img/avatar_default.png)
The `OPT__ABBREV()` option allows the user to specify the length that object hashes shall be abbreviated to. This length needs to be in the range of `(MIN_ABBREV, the_hash_algo->hexsz)`, which is why we clamp the value as required. While this makes sense in the case of `MIN_ABBREV`, it is unnecessary for the upper boundary as the value is eventually passed down to `repo_find_unnique_abbrev_r()`, which handles values larger than the current hash length just fine. In the preceding commit, we have changed parsing of the "core.abbrev" config to stop clamping to the upper boundary. Let's do the same here so that the code becomes simpler, we are consistent with how we treat the "core.abbrev" config and so that we stop depending on `the_repository`. Signed-off-by: Patrick Steinhardt <ps@pks.im> Signed-off-by: Junio C Hamano <gitster@pobox.com>
317 lines
6.8 KiB
C
317 lines
6.8 KiB
C
#include "git-compat-util.h"
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#include "parse-options.h"
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#include "branch.h"
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#include "commit.h"
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#include "color.h"
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#include "date.h"
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#include "environment.h"
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#include "gettext.h"
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#include "object-name.h"
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#include "setup.h"
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#include "string-list.h"
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#include "strvec.h"
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#include "oid-array.h"
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/*----- some often used options -----*/
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int parse_opt_abbrev_cb(const struct option *opt, const char *arg, int unset)
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{
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int v;
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if (!arg) {
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v = unset ? 0 : DEFAULT_ABBREV;
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} else {
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if (!*arg)
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return error(_("option `%s' expects a numerical value"),
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opt->long_name);
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v = strtol(arg, (char **)&arg, 10);
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if (*arg)
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return error(_("option `%s' expects a numerical value"),
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opt->long_name);
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if (v && v < MINIMUM_ABBREV)
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v = MINIMUM_ABBREV;
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}
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*(int *)(opt->value) = v;
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return 0;
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}
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int parse_opt_expiry_date_cb(const struct option *opt, const char *arg,
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int unset)
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{
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if (unset)
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arg = "never";
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if (parse_expiry_date(arg, (timestamp_t *)opt->value))
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die(_("malformed expiration date '%s'"), arg);
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return 0;
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}
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int parse_opt_color_flag_cb(const struct option *opt, const char *arg,
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int unset)
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{
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int value;
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if (!arg)
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arg = unset ? "never" : (const char *)opt->defval;
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value = git_config_colorbool(NULL, arg);
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if (value < 0)
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return error(_("option `%s' expects \"always\", \"auto\", or \"never\""),
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opt->long_name);
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*(int *)opt->value = value;
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return 0;
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}
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int parse_opt_verbosity_cb(const struct option *opt, const char *arg,
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int unset)
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{
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int *target = opt->value;
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BUG_ON_OPT_ARG(arg);
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if (unset)
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/* --no-quiet, --no-verbose */
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*target = 0;
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else if (opt->short_name == 'v') {
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if (*target >= 0)
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(*target)++;
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else
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*target = 1;
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} else {
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if (*target <= 0)
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(*target)--;
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else
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*target = -1;
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}
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return 0;
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}
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int parse_opt_commits(const struct option *opt, const char *arg, int unset)
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{
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struct object_id oid;
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struct commit *commit;
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BUG_ON_OPT_NEG(unset);
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if (!arg)
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return -1;
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if (repo_get_oid(the_repository, arg, &oid))
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return error("malformed object name %s", arg);
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commit = lookup_commit_reference(the_repository, &oid);
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if (!commit)
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return error("no such commit %s", arg);
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commit_list_insert(commit, opt->value);
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return 0;
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}
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int parse_opt_commit(const struct option *opt, const char *arg, int unset)
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{
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struct object_id oid;
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struct commit *commit;
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struct commit **target = opt->value;
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BUG_ON_OPT_NEG(unset);
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if (!arg)
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return -1;
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if (repo_get_oid(the_repository, arg, &oid))
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return error("malformed object name %s", arg);
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commit = lookup_commit_reference(the_repository, &oid);
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if (!commit)
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return error("no such commit %s", arg);
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*target = commit;
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return 0;
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}
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int parse_opt_object_name(const struct option *opt, const char *arg, int unset)
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{
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struct object_id oid;
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if (unset) {
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oid_array_clear(opt->value);
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return 0;
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}
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if (!arg)
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return -1;
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if (repo_get_oid(the_repository, arg, &oid))
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return error(_("malformed object name '%s'"), arg);
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oid_array_append(opt->value, &oid);
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return 0;
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}
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int parse_opt_object_id(const struct option *opt, const char *arg, int unset)
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{
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struct object_id oid;
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struct object_id *target = opt->value;
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if (unset) {
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oidcpy(target, null_oid());
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return 0;
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}
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if (!arg)
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return -1;
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if (repo_get_oid(the_repository, arg, &oid))
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return error(_("malformed object name '%s'"), arg);
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*target = oid;
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return 0;
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}
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int parse_opt_tertiary(const struct option *opt, const char *arg, int unset)
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{
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int *target = opt->value;
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BUG_ON_OPT_ARG(arg);
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*target = unset ? 2 : 1;
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return 0;
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}
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static size_t parse_options_count(const struct option *opt)
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{
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size_t n = 0;
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for (; opt && opt->type != OPTION_END; opt++)
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n++;
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return n;
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}
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struct option *parse_options_dup(const struct option *o)
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{
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struct option no_options[] = { OPT_END() };
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return parse_options_concat(o, no_options);
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}
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struct option *parse_options_concat(const struct option *a,
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const struct option *b)
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{
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struct option *ret;
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size_t a_len = parse_options_count(a);
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size_t b_len = parse_options_count(b);
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ALLOC_ARRAY(ret, st_add3(a_len, b_len, 1));
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COPY_ARRAY(ret, a, a_len);
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COPY_ARRAY(ret + a_len, b, b_len + 1); /* + 1 for final OPTION_END */
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return ret;
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}
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int parse_opt_string_list(const struct option *opt, const char *arg, int unset)
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{
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struct string_list *v = opt->value;
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if (unset) {
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string_list_clear(v, 0);
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return 0;
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}
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if (!arg)
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return -1;
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string_list_append(v, arg);
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return 0;
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}
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int parse_opt_strvec(const struct option *opt, const char *arg, int unset)
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{
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struct strvec *v = opt->value;
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if (unset) {
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strvec_clear(v);
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return 0;
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}
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if (!arg)
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return -1;
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strvec_push(v, arg);
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return 0;
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}
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int parse_opt_noop_cb(const struct option *opt UNUSED,
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const char *arg UNUSED,
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int unset UNUSED)
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{
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return 0;
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}
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/**
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* Recreates the command-line option in the strbuf.
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*/
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static int recreate_opt(struct strbuf *sb, const struct option *opt,
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const char *arg, int unset)
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{
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strbuf_reset(sb);
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if (opt->long_name) {
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strbuf_addstr(sb, unset ? "--no-" : "--");
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strbuf_addstr(sb, opt->long_name);
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if (arg) {
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strbuf_addch(sb, '=');
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strbuf_addstr(sb, arg);
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}
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} else if (opt->short_name && !unset) {
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strbuf_addch(sb, '-');
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strbuf_addch(sb, opt->short_name);
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if (arg)
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strbuf_addstr(sb, arg);
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} else
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return -1;
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return 0;
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}
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/**
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* For an option opt, recreates the command-line option in opt->value which
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* must be an char* initialized to NULL. This is useful when we need to pass
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* the command-line option to another command. Since any previous value will be
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* overwritten, this callback should only be used for options where the last
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* one wins.
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*/
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int parse_opt_passthru(const struct option *opt, const char *arg, int unset)
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{
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static struct strbuf sb = STRBUF_INIT;
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char **opt_value = opt->value;
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if (recreate_opt(&sb, opt, arg, unset) < 0)
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return -1;
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free(*opt_value);
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*opt_value = strbuf_detach(&sb, NULL);
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return 0;
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}
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/**
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* For an option opt, recreate the command-line option, appending it to
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* opt->value which must be a strvec. This is useful when we need to pass
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* the command-line option, which can be specified multiple times, to another
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* command.
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*/
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int parse_opt_passthru_argv(const struct option *opt, const char *arg, int unset)
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{
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static struct strbuf sb = STRBUF_INIT;
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struct strvec *opt_value = opt->value;
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if (recreate_opt(&sb, opt, arg, unset) < 0)
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return -1;
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strvec_push(opt_value, sb.buf);
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return 0;
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}
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int parse_opt_tracking_mode(const struct option *opt, const char *arg, int unset)
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{
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if (unset)
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*(enum branch_track *)opt->value = BRANCH_TRACK_NEVER;
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else if (!arg || !strcmp(arg, "direct"))
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*(enum branch_track *)opt->value = BRANCH_TRACK_EXPLICIT;
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else if (!strcmp(arg, "inherit"))
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*(enum branch_track *)opt->value = BRANCH_TRACK_INHERIT;
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else
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return error(_("option `%s' expects \"%s\" or \"%s\""),
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"--track", "direct", "inherit");
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return 0;
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}
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