Andrew's git - gitweb.git/blob - parse-options-cb.c

   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
   8/*----- some often used options -----*/
   9
  10int parse_opt_abbrev_cb(const struct option *opt, const char *arg, int unset)
  11{
  12        int v;
  13
  14        if (!arg) {
  15                v = unset ? 0 : DEFAULT_ABBREV;
  16        } else {
  17                v = strtol(arg, (char **)&arg, 10);
  18                if (*arg)
  19                        return opterror(opt, "expects a numerical value", 0);
  20                if (v && v < MINIMUM_ABBREV)
  21                        v = MINIMUM_ABBREV;
  22                else if (v > 40)
  23                        v = 40;
  24        }
  25        *(int *)(opt->value) = v;
  26        return 0;
  27}
  28
  29int parse_opt_approxidate_cb(const struct option *opt, const char *arg,
  30                             int unset)
  31{
  32        *(unsigned long *)(opt->value) = approxidate(arg);
  33        return 0;
  34}
  35
  36int parse_opt_color_flag_cb(const struct option *opt, const char *arg,
  37                            int unset)
  38{
  39        int value;
  40
  41        if (!arg)
  42                arg = unset ? "never" : (const char *)opt->defval;
  43        value = git_config_colorbool(NULL, arg);
  44        if (value < 0)
  45                return opterror(opt,
  46                        "expects \"always\", \"auto\", or \"never\"", 0);
  47        *(int *)opt->value = value;
  48        return 0;
  49}
  50
  51int parse_opt_verbosity_cb(const struct option *opt, const char *arg,
  52                           int unset)
  53{
  54        int *target = opt->value;
  55
  56        if (unset)
  57                /* --no-quiet, --no-verbose */
  58                *target = 0;
  59        else if (opt->short_name == 'v') {
  60                if (*target >= 0)
  61                        (*target)++;
  62                else
  63                        *target = 1;
  64        } else {
  65                if (*target <= 0)
  66                        (*target)--;
  67                else
  68                        *target = -1;
  69        }
  70        return 0;
  71}
  72
  73int parse_opt_with_commit(const struct option *opt, const char *arg, int unset)
  74{
  75        unsigned char sha1[20];
  76        struct commit *commit;
  77
  78        if (!arg)
  79                return -1;
  80        if (get_sha1(arg, sha1))
  81                return error("malformed object name %s", arg);
  82        commit = lookup_commit_reference(sha1);
  83        if (!commit)
  84                return error("no such commit %s", arg);
  85        commit_list_insert(commit, opt->value);
  86        return 0;
  87}
  88
  89int parse_opt_tertiary(const struct option *opt, const char *arg, int unset)
  90{
  91        int *target = opt->value;
  92        *target = unset ? 2 : 1;
  93        return 0;
  94}
  95
  96int parse_options_concat(struct option *dst, size_t dst_size, struct option *src)
  97{
  98        int i, j;
  99
 100        for (i = 0; i < dst_size; i++)
 101                if (dst[i].type == OPTION_END)
 102                        break;
 103        for (j = 0; i < dst_size; i++, j++) {
 104                dst[i] = src[j];
 105                if (src[j].type == OPTION_END)
 106                        return 0;
 107        }
 108        return -1;
 109}
 110
 111int parse_opt_string_list(const struct option *opt, const char *arg, int unset)
 112{
 113        struct string_list *v = opt->value;
 114
 115        if (unset) {
 116                string_list_clear(v, 0);
 117                return 0;
 118        }
 119
 120        if (!arg)
 121                return -1;
 122
 123        string_list_append(v, xstrdup(arg));
 124        return 0;
 125}