git-multimail: update to release 1.2.0
[git.git] / parse-options-cb.c
blob239898d946f06d102030569fd45780f523fdcd5a
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 "argv-array.h"
8 #include "sha1-array.h"
10 /*----- some often used options -----*/
12 int parse_opt_abbrev_cb(const struct option *opt, const char *arg, int unset)
14 int v;
16 if (!arg) {
17 v = unset ? 0 : DEFAULT_ABBREV;
18 } else {
19 v = strtol(arg, (char **)&arg, 10);
20 if (*arg)
21 return opterror(opt, "expects a numerical value", 0);
22 if (v && v < MINIMUM_ABBREV)
23 v = MINIMUM_ABBREV;
24 else if (v > 40)
25 v = 40;
27 *(int *)(opt->value) = v;
28 return 0;
31 int parse_opt_approxidate_cb(const struct option *opt, const char *arg,
32 int unset)
34 *(unsigned long *)(opt->value) = approxidate(arg);
35 return 0;
38 int parse_opt_expiry_date_cb(const struct option *opt, const char *arg,
39 int unset)
41 return parse_expiry_date(arg, (unsigned long *)opt->value);
44 int parse_opt_color_flag_cb(const struct option *opt, const char *arg,
45 int unset)
47 int value;
49 if (!arg)
50 arg = unset ? "never" : (const char *)opt->defval;
51 value = git_config_colorbool(NULL, arg);
52 if (value < 0)
53 return opterror(opt,
54 "expects \"always\", \"auto\", or \"never\"", 0);
55 *(int *)opt->value = value;
56 return 0;
59 int parse_opt_verbosity_cb(const struct option *opt, const char *arg,
60 int unset)
62 int *target = opt->value;
64 if (unset)
65 /* --no-quiet, --no-verbose */
66 *target = 0;
67 else if (opt->short_name == 'v') {
68 if (*target >= 0)
69 (*target)++;
70 else
71 *target = 1;
72 } else {
73 if (*target <= 0)
74 (*target)--;
75 else
76 *target = -1;
78 return 0;
81 int parse_opt_commits(const struct option *opt, const char *arg, int unset)
83 unsigned char sha1[20];
84 struct commit *commit;
86 if (!arg)
87 return -1;
88 if (get_sha1(arg, sha1))
89 return error("malformed object name %s", arg);
90 commit = lookup_commit_reference(sha1);
91 if (!commit)
92 return error("no such commit %s", arg);
93 commit_list_insert(commit, opt->value);
94 return 0;
97 int parse_opt_object_name(const struct option *opt, const char *arg, int unset)
99 unsigned char sha1[20];
101 if (unset) {
102 sha1_array_clear(opt->value);
103 return 0;
105 if (!arg)
106 return -1;
107 if (get_sha1(arg, sha1))
108 return error(_("malformed object name '%s'"), arg);
109 sha1_array_append(opt->value, sha1);
110 return 0;
113 int parse_opt_tertiary(const struct option *opt, const char *arg, int unset)
115 int *target = opt->value;
116 *target = unset ? 2 : 1;
117 return 0;
120 int parse_options_concat(struct option *dst, size_t dst_size, struct option *src)
122 int i, j;
124 for (i = 0; i < dst_size; i++)
125 if (dst[i].type == OPTION_END)
126 break;
127 for (j = 0; i < dst_size; i++, j++) {
128 dst[i] = src[j];
129 if (src[j].type == OPTION_END)
130 return 0;
132 return -1;
135 int parse_opt_string_list(const struct option *opt, const char *arg, int unset)
137 struct string_list *v = opt->value;
139 if (unset) {
140 string_list_clear(v, 0);
141 return 0;
144 if (!arg)
145 return -1;
147 string_list_append(v, xstrdup(arg));
148 return 0;
151 int parse_opt_noop_cb(const struct option *opt, const char *arg, int unset)
153 return 0;
157 * Recreates the command-line option in the strbuf.
159 static int recreate_opt(struct strbuf *sb, const struct option *opt,
160 const char *arg, int unset)
162 strbuf_reset(sb);
164 if (opt->long_name) {
165 strbuf_addstr(sb, unset ? "--no-" : "--");
166 strbuf_addstr(sb, opt->long_name);
167 if (arg) {
168 strbuf_addch(sb, '=');
169 strbuf_addstr(sb, arg);
171 } else if (opt->short_name && !unset) {
172 strbuf_addch(sb, '-');
173 strbuf_addch(sb, opt->short_name);
174 if (arg)
175 strbuf_addstr(sb, arg);
176 } else
177 return -1;
179 return 0;
183 * For an option opt, recreates the command-line option in opt->value which
184 * must be an char* initialized to NULL. This is useful when we need to pass
185 * the command-line option to another command. Since any previous value will be
186 * overwritten, this callback should only be used for options where the last
187 * one wins.
189 int parse_opt_passthru(const struct option *opt, const char *arg, int unset)
191 static struct strbuf sb = STRBUF_INIT;
192 char **opt_value = opt->value;
194 if (recreate_opt(&sb, opt, arg, unset) < 0)
195 return -1;
197 if (*opt_value)
198 free(*opt_value);
200 *opt_value = strbuf_detach(&sb, NULL);
202 return 0;
206 * For an option opt, recreate the command-line option, appending it to
207 * opt->value which must be a argv_array. This is useful when we need to pass
208 * the command-line option, which can be specified multiple times, to another
209 * command.
211 int parse_opt_passthru_argv(const struct option *opt, const char *arg, int unset)
213 static struct strbuf sb = STRBUF_INIT;
214 struct argv_array *opt_value = opt->value;
216 if (recreate_opt(&sb, opt, arg, unset) < 0)
217 return -1;
219 argv_array_push(opt_value, sb.buf);
221 return 0;