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#include "sha1-array.h"
   8
   9/*----- some often used options -----*/
  10
  11int 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
  30int 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
  37int 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
  43int 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
  58int 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
  80int parse_opt_with_commit(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
  96int 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
 112int 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
 119int 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
 134int 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
 150int parse_opt_noop_cb(const struct option *opt, const char *arg, int unset)
 151{
 152        return 0;
 153}