parse-options-cb.con commit Merge branch 'ab/ref-filter-no-contains' into maint (1eb539a)
   1#include "git-compat-util.h"
   2#include "parse-options.h"
   3#include "cache.h"
   4#include "commit.h"
   5#include "color.h"
   6#include "string-list.h"
   7#include "argv-array.h"
   8#include "sha1-array.h"
   9
  10/*----- some often used options -----*/
  11
  12int parse_opt_abbrev_cb(const struct option *opt, const char *arg, int unset)
  13{
  14        int v;
  15
  16        if (!arg) {
  17                v = unset ? 0 : DEFAULT_ABBREV;
  18        } else {
  19                v = strtol(arg, (char **)&arg, 10);
  20                if (*arg)
  21                        return opterror(opt, "expects a numerical value", 0);
  22                if (v && v < MINIMUM_ABBREV)
  23                        v = MINIMUM_ABBREV;
  24                else if (v > 40)
  25                        v = 40;
  26        }
  27        *(int *)(opt->value) = v;
  28        return 0;
  29}
  30
  31int parse_opt_approxidate_cb(const struct option *opt, const char *arg,
  32                             int unset)
  33{
  34        *(timestamp_t *)(opt->value) = approxidate(arg);
  35        return 0;
  36}
  37
  38int parse_opt_expiry_date_cb(const struct option *opt, const char *arg,
  39                             int unset)
  40{
  41        return parse_expiry_date(arg, (timestamp_t *)opt->value);
  42}
  43
  44int parse_opt_color_flag_cb(const struct option *opt, const char *arg,
  45                            int unset)
  46{
  47        int value;
  48
  49        if (!arg)
  50                arg = unset ? "never" : (const char *)opt->defval;
  51        value = git_config_colorbool(NULL, arg);
  52        if (value < 0)
  53                return opterror(opt,
  54                        "expects \"always\", \"auto\", or \"never\"", 0);
  55        *(int *)opt->value = value;
  56        return 0;
  57}
  58
  59int parse_opt_verbosity_cb(const struct option *opt, const char *arg,
  60                           int unset)
  61{
  62        int *target = opt->value;
  63
  64        if (unset)
  65                /* --no-quiet, --no-verbose */
  66                *target = 0;
  67        else if (opt->short_name == 'v') {
  68                if (*target >= 0)
  69                        (*target)++;
  70                else
  71                        *target = 1;
  72        } else {
  73                if (*target <= 0)
  74                        (*target)--;
  75                else
  76                        *target = -1;
  77        }
  78        return 0;
  79}
  80
  81int parse_opt_commits(const struct option *opt, const char *arg, int unset)
  82{
  83        struct object_id oid;
  84        struct commit *commit;
  85
  86        if (!arg)
  87                return -1;
  88        if (get_oid(arg, &oid))
  89                return error("malformed object name %s", arg);
  90        commit = lookup_commit_reference(&oid);
  91        if (!commit)
  92                return error("no such commit %s", arg);
  93        commit_list_insert(commit, opt->value);
  94        return 0;
  95}
  96
  97int parse_opt_object_name(const struct option *opt, const char *arg, int unset)
  98{
  99        struct object_id oid;
 100
 101        if (unset) {
 102                oid_array_clear(opt->value);
 103                return 0;
 104        }
 105        if (!arg)
 106                return -1;
 107        if (get_oid(arg, &oid))
 108                return error(_("malformed object name '%s'"), arg);
 109        oid_array_append(opt->value, &oid);
 110        return 0;
 111}
 112
 113int parse_opt_tertiary(const struct option *opt, const char *arg, int unset)
 114{
 115        int *target = opt->value;
 116        *target = unset ? 2 : 1;
 117        return 0;
 118}
 119
 120struct option *parse_options_concat(struct option *a, struct option *b)
 121{
 122        struct option *ret;
 123        size_t i, a_len = 0, b_len = 0;
 124
 125        for (i = 0; a[i].type != OPTION_END; i++)
 126                a_len++;
 127        for (i = 0; b[i].type != OPTION_END; i++)
 128                b_len++;
 129
 130        ALLOC_ARRAY(ret, st_add3(a_len, b_len, 1));
 131        for (i = 0; i < a_len; i++)
 132                ret[i] = a[i];
 133        for (i = 0; i < b_len; i++)
 134                ret[a_len + i] = b[i];
 135        ret[a_len + b_len] = b[b_len]; /* final OPTION_END */
 136
 137        return ret;
 138}
 139
 140int parse_opt_string_list(const struct option *opt, const char *arg, int unset)
 141{
 142        struct string_list *v = opt->value;
 143
 144        if (unset) {
 145                string_list_clear(v, 0);
 146                return 0;
 147        }
 148
 149        if (!arg)
 150                return -1;
 151
 152        string_list_append(v, arg);
 153        return 0;
 154}
 155
 156int parse_opt_noop_cb(const struct option *opt, const char *arg, int unset)
 157{
 158        return 0;
 159}
 160
 161/**
 162 * Report that the option is unknown, so that other code can handle
 163 * it. This can be used as a callback together with
 164 * OPTION_LOWLEVEL_CALLBACK to allow an option to be documented in the
 165 * "-h" output even if it's not being handled directly by
 166 * parse_options().
 167 */
 168int parse_opt_unknown_cb(const struct option *opt, const char *arg, int unset)
 169{
 170        return -2;
 171}
 172
 173/**
 174 * Recreates the command-line option in the strbuf.
 175 */
 176static int recreate_opt(struct strbuf *sb, const struct option *opt,
 177                const char *arg, int unset)
 178{
 179        strbuf_reset(sb);
 180
 181        if (opt->long_name) {
 182                strbuf_addstr(sb, unset ? "--no-" : "--");
 183                strbuf_addstr(sb, opt->long_name);
 184                if (arg) {
 185                        strbuf_addch(sb, '=');
 186                        strbuf_addstr(sb, arg);
 187                }
 188        } else if (opt->short_name && !unset) {
 189                strbuf_addch(sb, '-');
 190                strbuf_addch(sb, opt->short_name);
 191                if (arg)
 192                        strbuf_addstr(sb, arg);
 193        } else
 194                return -1;
 195
 196        return 0;
 197}
 198
 199/**
 200 * For an option opt, recreates the command-line option in opt->value which
 201 * must be an char* initialized to NULL. This is useful when we need to pass
 202 * the command-line option to another command. Since any previous value will be
 203 * overwritten, this callback should only be used for options where the last
 204 * one wins.
 205 */
 206int parse_opt_passthru(const struct option *opt, const char *arg, int unset)
 207{
 208        static struct strbuf sb = STRBUF_INIT;
 209        char **opt_value = opt->value;
 210
 211        if (recreate_opt(&sb, opt, arg, unset) < 0)
 212                return -1;
 213
 214        free(*opt_value);
 215
 216        *opt_value = strbuf_detach(&sb, NULL);
 217
 218        return 0;
 219}
 220
 221/**
 222 * For an option opt, recreate the command-line option, appending it to
 223 * opt->value which must be a argv_array. This is useful when we need to pass
 224 * the command-line option, which can be specified multiple times, to another
 225 * command.
 226 */
 227int parse_opt_passthru_argv(const struct option *opt, const char *arg, int unset)
 228{
 229        static struct strbuf sb = STRBUF_INIT;
 230        struct argv_array *opt_value = opt->value;
 231
 232        if (recreate_opt(&sb, opt, arg, unset) < 0)
 233                return -1;
 234
 235        argv_array_push(opt_value, sb.buf);
 236
 237        return 0;
 238}