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 #include "sha1-array.h"
   8
   9 /*----- some often used options -----*/
  10
  11 int parse_opt_abbrev_cb(const struct option *opt, const char *arg, int unset)
  12 {
  13         int v;
  14
  15         if (!arg) {
  16                 v = unset ? 0 : DEFAULT_ABBREV;
  17         } else {
  18                 v = strtol(arg, (char **)&arg, 10);
  19                 if (*arg)
  20                         return opterror(opt, "expects a numerical value", 0);
  21                 if (v && v < MINIMUM_ABBREV)
  22                         v = MINIMUM_ABBREV;
  23                 else if (v > 40)
  24                         v = 40;
  25         }
  26         *(int *)(opt->value) = v;
  27         return 0;
  28 }
  29
  30 int parse_opt_approxidate_cb(const struct option *opt, const char *arg,
  31                              int unset)
  32 {
  33         *(unsigned long *)(opt->value) = approxidate(arg);
  34         return 0;
  35 }
  36
  37 int parse_opt_expiry_date_cb(const struct option *opt, const char *arg,
  38                              int unset)
  39 {
  40         return parse_expiry_date(arg, (unsigned long *)opt->value);
  41 }
  42
  43 int parse_opt_color_flag_cb(const struct option *opt, const char *arg,
  44                             int unset)
  45 {
  46         int value;
  47
  48         if (!arg)
  49                 arg = unset ? "never" : (const char *)opt->defval;
  50         value = git_config_colorbool(NULL, arg);
  51         if (value < 0)
  52                 return opterror(opt,
  53                         "expects \"always\", \"auto\", or \"never\"", 0);
  54         *(int *)opt->value = value;
  55         return 0;
  56 }
  57
  58 int parse_opt_verbosity_cb(const struct option *opt, const char *arg,
  59                            int unset)
  60 {
  61         int *target = opt->value;
  62
  63         if (unset)
  64                 /* --no-quiet, --no-verbose */
  65                 *target = 0;
  66         else if (opt->short_name == 'v') {
  67                 if (*target >= 0)
  68                         (*target)++;
  69                 else
  70                         *target = 1;
  71         } else {
  72                 if (*target <= 0)
  73                         (*target)--;
  74                 else
  75                         *target = -1;
  76         }
  77         return 0;
  78 }
  79
  80 int parse_opt_commits(const struct option *opt, const char *arg, int unset)
  81 {
  82         unsigned char sha1[20];
  83         struct commit *commit;
  84
  85         if (!arg)
  86                 return -1;
  87         if (get_sha1(arg, sha1))
  88                 return error("malformed object name %s", arg);
  89         commit = lookup_commit_reference(sha1);
  90         if (!commit)
  91                 return error("no such commit %s", arg);
  92         commit_list_insert(commit, opt->value);
  93         return 0;
  94 }
  95
  96 int parse_opt_object_name(const struct option *opt, const char *arg, int unset)
  97 {
  98         unsigned char sha1[20];
  99
 100         if (unset) {
 101                 sha1_array_clear(opt->value);
 102                 return 0;
 103         }
 104         if (!arg)
 105                 return -1;
 106         if (get_sha1(arg, sha1))
 107                 return error(_("malformed object name '%s'"), arg);
 108         sha1_array_append(opt->value, sha1);
 109         return 0;
 110 }
 111
 112 int parse_opt_tertiary(const struct option *opt, const char *arg, int unset)
 113 {
 114         int *target = opt->value;
 115         *target = unset ? 2 : 1;
 116         return 0;
 117 }
 118
 119 int parse_options_concat(struct option *dst, size_t dst_size, struct option *src)
 120 {
 121         int i, j;
 122
 123         for (i = 0; i < dst_size; i++)
 124                 if (dst[i].type == OPTION_END)
 125                         break;
 126         for (j = 0; i < dst_size; i++, j++) {
 127                 dst[i] = src[j];
 128                 if (src[j].type == OPTION_END)
 129                         return 0;
 130         }
 131         return -1;
 132 }
 133
 134 int parse_opt_string_list(const struct option *opt, const char *arg, int unset)
 135 {
 136         struct string_list *v = opt->value;
 137
 138         if (unset) {
 139                 string_list_clear(v, 0);
 140                 return 0;
 141         }
 142
 143         if (!arg)
 144                 return -1;
 145
 146         string_list_append(v, xstrdup(arg));
 147         return 0;
 148 }
 149
 150 int parse_opt_noop_cb(const struct option *opt, const char *arg, int unset)
 151 {
 152         return 0;
 153 }