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
  10 int 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
  29 int 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
  36 int 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
  51 int 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
  73 int 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
  89 int 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
  96 int 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
 111 int 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 }