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 "notes.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_color_flag_cb(const struct option *opt, const char *arg,
  38                             int unset)
  39 {
  40         int value;
  41
  42         if (!arg)
  43                 arg = unset ? "never" : (const char *)opt->defval;
  44         value = git_config_colorbool(NULL, arg);
  45         if (value < 0)
  46                 return opterror(opt,
  47                         "expects \"always\", \"auto\", or \"never\"", 0);
  48         *(int *)opt->value = value;
  49         return 0;
  50 }
  51
  52 int parse_opt_verbosity_cb(const struct option *opt, const char *arg,
  53                            int unset)
  54 {
  55         int *target = opt->value;
  56
  57         if (unset)
  58                 /* --no-quiet, --no-verbose */
  59                 *target = 0;
  60         else if (opt->short_name == 'v') {
  61                 if (*target >= 0)
  62                         (*target)++;
  63                 else
  64                         *target = 1;
  65         } else {
  66                 if (*target <= 0)
  67                         (*target)--;
  68                 else
  69                         *target = -1;
  70         }
  71         return 0;
  72 }
  73
  74 int parse_opt_with_commit(const struct option *opt, const char *arg, int unset)
  75 {
  76         unsigned char sha1[20];
  77         struct commit *commit;
  78
  79         if (!arg)
  80                 return -1;
  81         if (get_sha1(arg, sha1))
  82                 return error("malformed object name %s", arg);
  83         commit = lookup_commit_reference(sha1);
  84         if (!commit)
  85                 return error("no such commit %s", arg);
  86         commit_list_insert(commit, opt->value);
  87         return 0;
  88 }
  89
  90 int parse_opt_with_notes(const struct option *opt, const char *arg, int unset)
  91 {
  92         const char *notes_ref;
  93         if (!arg)
  94                 notes_ref = default_notes_ref();
  95         else {
  96                 struct strbuf buf = STRBUF_INIT;
  97                 if (!prefixcmp(arg, "refs/"))
  98                         /* happy */;
  99                 else if (!prefixcmp(arg, "notes/"))
 100                         strbuf_addstr(&buf, "refs/");
 101                 else
 102                         strbuf_addstr(&buf, "refs/notes/");
 103                 strbuf_addstr(&buf, arg);
 104                 notes_ref = strbuf_detach(&buf, NULL);
 105         }
 106         *(const char **)(opt->value) = notes_ref;
 107         return 0;
 108 }
 109
 110 int parse_opt_tertiary(const struct option *opt, const char *arg, int unset)
 111 {
 112         int *target = opt->value;
 113         *target = unset ? 2 : 1;
 114         return 0;
 115 }
 116
 117 int parse_options_concat(struct option *dst, size_t dst_size, struct option *src)
 118 {
 119         int i, j;
 120
 121         for (i = 0; i < dst_size; i++)
 122                 if (dst[i].type == OPTION_END)
 123                         break;
 124         for (j = 0; i < dst_size; i++, j++) {
 125                 dst[i] = src[j];
 126                 if (src[j].type == OPTION_END)
 127                         return 0;
 128         }
 129         return -1;
 130 }
 131
 132 int parse_opt_string_list(const struct option *opt, const char *arg, int unset)
 133 {
 134         struct string_list *v = opt->value;
 135
 136         if (unset) {
 137                 string_list_clear(v, 0);
 138                 return 0;
 139         }
 140
 141         if (!arg)
 142                 return -1;
 143
 144         string_list_append(v, xstrdup(arg));
 145         return 0;
 146 }
 147
 148 int parse_opt_noop_cb(const struct option *opt, const char *arg, int unset)
 149 {
 150         return 0;
 151 }