diff options
Diffstat (limited to 'parse-options-cb.c')
-rw-r--r-- | parse-options-cb.c | 317 |
1 files changed, 317 insertions, 0 deletions
diff --git a/parse-options-cb.c b/parse-options-cb.c new file mode 100644 index 0000000..bdc7fae --- /dev/null +++ b/parse-options-cb.c @@ -0,0 +1,317 @@ +#include "git-compat-util.h" +#include "parse-options.h" +#include "branch.h" +#include "commit.h" +#include "color.h" +#include "date.h" +#include "environment.h" +#include "gettext.h" +#include "object-name.h" +#include "string-list.h" +#include "strvec.h" +#include "oid-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 { + if (!*arg) + return error(_("option `%s' expects a numerical value"), + opt->long_name); + v = strtol(arg, (char **)&arg, 10); + if (*arg) + return error(_("option `%s' expects a numerical value"), + opt->long_name); + if (v && v < MINIMUM_ABBREV) + v = MINIMUM_ABBREV; + else if (v > the_hash_algo->hexsz) + v = the_hash_algo->hexsz; + } + *(int *)(opt->value) = v; + return 0; +} + +int parse_opt_expiry_date_cb(const struct option *opt, const char *arg, + int unset) +{ + 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 error(_("option `%s' expects \"always\", \"auto\", or \"never\""), + opt->long_name); + *(int *)opt->value = value; + return 0; +} + +int parse_opt_verbosity_cb(const struct option *opt, const char *arg, + int unset) +{ + int *target = opt->value; + + BUG_ON_OPT_ARG(arg); + + 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; + + BUG_ON_OPT_NEG(unset); + + if (!arg) + return -1; + if (repo_get_oid(the_repository, arg, &oid)) + return error("malformed object name %s", arg); + commit = lookup_commit_reference(the_repository, &oid); + if (!commit) + return error("no such commit %s", arg); + commit_list_insert(commit, opt->value); + return 0; +} + +int parse_opt_commit(const struct option *opt, const char *arg, int unset) +{ + struct object_id oid; + struct commit *commit; + struct commit **target = opt->value; + + BUG_ON_OPT_NEG(unset); + + if (!arg) + return -1; + if (repo_get_oid(the_repository, arg, &oid)) + return error("malformed object name %s", arg); + commit = lookup_commit_reference(the_repository, &oid); + if (!commit) + return error("no such commit %s", arg); + *target = commit; + 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 (repo_get_oid(the_repository, arg, &oid)) + return error(_("malformed object name '%s'"), arg); + oid_array_append(opt->value, &oid); + return 0; +} + +int parse_opt_object_id(const struct option *opt, const char *arg, int unset) +{ + struct object_id oid; + struct object_id *target = opt->value; + + if (unset) { + oidcpy(target, null_oid()); + return 0; + } + if (!arg) + return -1; + if (repo_get_oid(the_repository, arg, &oid)) + return error(_("malformed object name '%s'"), arg); + *target = oid; + return 0; +} + +int parse_opt_tertiary(const struct option *opt, const char *arg, int unset) +{ + int *target = opt->value; + + BUG_ON_OPT_ARG(arg); + + *target = unset ? 2 : 1; + return 0; +} + +static size_t parse_options_count(const struct option *opt) +{ + size_t n = 0; + + for (; opt && opt->type != OPTION_END; opt++) + n++; + return n; +} + +struct option *parse_options_dup(const struct option *o) +{ + struct option no_options[] = { OPT_END() }; + + return parse_options_concat(o, no_options); +} + +struct option *parse_options_concat(const struct option *a, + const struct option *b) +{ + struct option *ret; + size_t a_len = parse_options_count(a); + size_t b_len = parse_options_count(b); + + ALLOC_ARRAY(ret, st_add3(a_len, b_len, 1)); + COPY_ARRAY(ret, a, a_len); + COPY_ARRAY(ret + a_len, b, b_len + 1); /* + 1 for 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_strvec(const struct option *opt, const char *arg, int unset) +{ + struct strvec *v = opt->value; + + if (unset) { + strvec_clear(v); + return 0; + } + + if (!arg) + return -1; + + strvec_push(v, arg); + return 0; +} + +int parse_opt_noop_cb(const struct option *opt UNUSED, + const char *arg UNUSED, + int unset UNUSED) +{ + return 0; +} + +/** + * 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 strvec. 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 strvec *opt_value = opt->value; + + if (recreate_opt(&sb, opt, arg, unset) < 0) + return -1; + + strvec_push(opt_value, sb.buf); + + return 0; +} + +int parse_opt_tracking_mode(const struct option *opt, const char *arg, int unset) +{ + if (unset) + *(enum branch_track *)opt->value = BRANCH_TRACK_NEVER; + else if (!arg || !strcmp(arg, "direct")) + *(enum branch_track *)opt->value = BRANCH_TRACK_EXPLICIT; + else if (!strcmp(arg, "inherit")) + *(enum branch_track *)opt->value = BRANCH_TRACK_INHERIT; + else + return error(_("option `%s' expects \"%s\" or \"%s\""), + "--track", "direct", "inherit"); + + return 0; +} |