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4a59fd13 PH |
1 | #ifndef PARSE_OPTIONS_H |
2 | #define PARSE_OPTIONS_H | |
3 | ||
4 | enum parse_opt_type { | |
db7244bd | 5 | /* special types */ |
4a59fd13 | 6 | OPTION_END, |
580d5bff | 7 | OPTION_ARGUMENT, |
d7a38c54 | 8 | OPTION_GROUP, |
e0319ff5 | 9 | OPTION_NUMBER, |
db7244bd PH |
10 | /* options with no arguments */ |
11 | OPTION_BIT, | |
2f4b97f9 | 12 | OPTION_NEGBIT, |
b04ba2bb | 13 | OPTION_COUNTUP, |
db7244bd | 14 | OPTION_SET_INT, |
11588263 | 15 | OPTION_CMDMODE, |
db7244bd | 16 | /* options with arguments (usually) */ |
4a59fd13 PH |
17 | OPTION_STRING, |
18 | OPTION_INTEGER, | |
2a514ed8 | 19 | OPTION_MAGNITUDE, |
ffe659f9 | 20 | OPTION_CALLBACK, |
b0b3a8b6 | 21 | OPTION_LOWLEVEL_CALLBACK, |
df217ed6 | 22 | OPTION_FILENAME |
4a59fd13 PH |
23 | }; |
24 | ||
25 | enum parse_opt_flags { | |
26 | PARSE_OPT_KEEP_DASHDASH = 1, | |
a0ec9d25 | 27 | PARSE_OPT_STOP_AT_NON_OPTION = 2, |
a32a4eaa | 28 | PARSE_OPT_KEEP_ARGV0 = 4, |
b5ce3a54 | 29 | PARSE_OPT_KEEP_UNKNOWN = 8, |
4b05548f | 30 | PARSE_OPT_NO_INTERNAL_HELP = 16 |
4a59fd13 PH |
31 | }; |
32 | ||
ffe659f9 PH |
33 | enum parse_opt_option_flags { |
34 | PARSE_OPT_OPTARG = 1, | |
f481e22a | 35 | PARSE_OPT_NOARG = 2, |
db7244bd | 36 | PARSE_OPT_NONEG = 4, |
dd3bf0f4 | 37 | PARSE_OPT_HIDDEN = 8, |
1cc6985c | 38 | PARSE_OPT_LASTARG_DEFAULT = 16, |
51a9949e | 39 | PARSE_OPT_NODASH = 32, |
29f25d49 | 40 | PARSE_OPT_LITERAL_ARGHELP = 64, |
47e9cd28 | 41 | PARSE_OPT_SHELL_EVAL = 256 |
ffe659f9 PH |
42 | }; |
43 | ||
44 | struct option; | |
45 | typedef int parse_opt_cb(const struct option *, const char *arg, int unset); | |
46 | ||
b0b3a8b6 JN |
47 | struct parse_opt_ctx_t; |
48 | typedef int parse_opt_ll_cb(struct parse_opt_ctx_t *ctx, | |
49 | const struct option *opt, int unset); | |
50 | ||
9b3beb58 PH |
51 | /* |
52 | * `type`:: | |
53 | * holds the type of the option, you must have an OPTION_END last in your | |
54 | * array. | |
55 | * | |
56 | * `short_name`:: | |
57 | * the character to use as a short option name, '\0' if none. | |
58 | * | |
59 | * `long_name`:: | |
60 | * the long option name, without the leading dashes, NULL if none. | |
61 | * | |
62 | * `value`:: | |
63 | * stores pointers to the values to be filled. | |
64 | * | |
65 | * `argh`:: | |
66 | * token to explain the kind of argument this option wants. Keep it | |
54e6dc7d NTND |
67 | * homogeneous across the repository. Should be wrapped by N_() for |
68 | * translation. | |
9b3beb58 PH |
69 | * |
70 | * `help`:: | |
71 | * the short help associated to what the option does. | |
72 | * Must never be NULL (except for OPTION_END). | |
73 | * OPTION_GROUP uses this pointer to store the group header. | |
54e6dc7d | 74 | * Should be wrapped by N_() for translation. |
9b3beb58 PH |
75 | * |
76 | * `flags`:: | |
77 | * mask of parse_opt_option_flags. | |
3ea3c215 | 78 | * PARSE_OPT_OPTARG: says that the argument is optional (not for BOOLEANs) |
ef45e4da | 79 | * PARSE_OPT_NOARG: says that this option does not take an argument |
db7244bd | 80 | * PARSE_OPT_NONEG: says that this option cannot be negated |
51a9949e RS |
81 | * PARSE_OPT_HIDDEN: this option is skipped in the default usage, and |
82 | * shown only in the full usage. | |
e169b974 SB |
83 | * PARSE_OPT_LASTARG_DEFAULT: says that this option will take the default |
84 | * value if no argument is given when the option | |
85 | * is last on the command line. If the option is | |
86 | * not last it will require an argument. | |
87 | * Should not be used with PARSE_OPT_OPTARG. | |
51a9949e | 88 | * PARSE_OPT_NODASH: this option doesn't start with a dash. |
29f25d49 SB |
89 | * PARSE_OPT_LITERAL_ARGHELP: says that argh shouldn't be enclosed in brackets |
90 | * (i.e. '<argh>') in the help message. | |
91 | * Useful for options with multiple parameters. | |
9b3beb58 PH |
92 | * |
93 | * `callback`:: | |
b0b3a8b6 JN |
94 | * pointer to the callback to use for OPTION_CALLBACK or |
95 | * OPTION_LOWLEVEL_CALLBACK. | |
9b3beb58 PH |
96 | * |
97 | * `defval`:: | |
98 | * default value to fill (*->value) with for PARSE_OPT_OPTARG. | |
d3c08114 | 99 | * OPTION_{BIT,SET_INT} store the {mask,integer} to put in the value when met. |
9b3beb58 PH |
100 | * CALLBACKS can use it like they want. |
101 | */ | |
4a59fd13 PH |
102 | struct option { |
103 | enum parse_opt_type type; | |
104 | int short_name; | |
105 | const char *long_name; | |
106 | void *value; | |
d7a38c54 PH |
107 | const char *argh; |
108 | const char *help; | |
ffe659f9 PH |
109 | |
110 | int flags; | |
111 | parse_opt_cb *callback; | |
ffe659f9 | 112 | intptr_t defval; |
4a59fd13 PH |
113 | }; |
114 | ||
115 | #define OPT_END() { OPTION_END } | |
34aec9f5 SB |
116 | #define OPT_ARGUMENT(l, h) { OPTION_ARGUMENT, 0, (l), NULL, NULL, \ |
117 | (h), PARSE_OPT_NOARG} | |
d7a38c54 | 118 | #define OPT_GROUP(h) { OPTION_GROUP, 0, NULL, NULL, NULL, (h) } |
34aec9f5 SB |
119 | #define OPT_BIT(s, l, v, h, b) { OPTION_BIT, (s), (l), (v), NULL, (h), \ |
120 | PARSE_OPT_NOARG, NULL, (b) } | |
121 | #define OPT_NEGBIT(s, l, v, h, b) { OPTION_NEGBIT, (s), (l), (v), NULL, \ | |
122 | (h), PARSE_OPT_NOARG, NULL, (b) } | |
b04ba2bb | 123 | #define OPT_COUNTUP(s, l, v, h) { OPTION_COUNTUP, (s), (l), (v), NULL, \ |
34aec9f5 SB |
124 | (h), PARSE_OPT_NOARG } |
125 | #define OPT_SET_INT(s, l, v, h, i) { OPTION_SET_INT, (s), (l), (v), NULL, \ | |
126 | (h), PARSE_OPT_NOARG, NULL, (i) } | |
b04ba2bb | 127 | #define OPT_BOOL(s, l, v, h) OPT_SET_INT(s, l, v, h, 1) |
4741edd5 SB |
128 | #define OPT_HIDDEN_BOOL(s, l, v, h) { OPTION_SET_INT, (s), (l), (v), NULL, \ |
129 | (h), PARSE_OPT_NOARG | PARSE_OPT_HIDDEN, NULL, 1} | |
14691e38 | 130 | #define OPT_CMDMODE(s, l, v, h, i) { OPTION_CMDMODE, (s), (l), (v), NULL, \ |
11588263 | 131 | (h), PARSE_OPT_NOARG|PARSE_OPT_NONEG, NULL, (i) } |
54e6dc7d | 132 | #define OPT_INTEGER(s, l, v, h) { OPTION_INTEGER, (s), (l), (v), N_("n"), (h) } |
2a514ed8 CB |
133 | #define OPT_MAGNITUDE(s, l, v, h) { OPTION_MAGNITUDE, (s), (l), (v), \ |
134 | N_("n"), (h), PARSE_OPT_NONEG } | |
d7a38c54 | 135 | #define OPT_STRING(s, l, v, a, h) { OPTION_STRING, (s), (l), (v), (a), (h) } |
c8ba1639 JK |
136 | #define OPT_STRING_LIST(s, l, v, a, h) \ |
137 | { OPTION_CALLBACK, (s), (l), (v), (a), \ | |
138 | (h), 0, &parse_opt_string_list } | |
cb6020bb JH |
139 | #define OPT_UYN(s, l, v, h) { OPTION_CALLBACK, (s), (l), (v), NULL, \ |
140 | (h), PARSE_OPT_NOARG, &parse_opt_tertiary } | |
1f4a711a | 141 | #define OPT_DATE(s, l, v, h) \ |
54e6dc7d | 142 | { OPTION_CALLBACK, (s), (l), (v), N_("time"),(h), 0, \ |
1f4a711a | 143 | parse_opt_approxidate_cb } |
27ec394a | 144 | #define OPT_EXPIRY_DATE(s, l, v, h) \ |
e703d711 | 145 | { OPTION_CALLBACK, (s), (l), (v), N_("expiry-date"),(h), 0, \ |
27ec394a | 146 | parse_opt_expiry_date_cb } |
ffe659f9 PH |
147 | #define OPT_CALLBACK(s, l, v, a, h, f) \ |
148 | { OPTION_CALLBACK, (s), (l), (v), (a), (h), 0, (f) } | |
e0319ff5 RS |
149 | #define OPT_NUMBER_CALLBACK(v, h, f) \ |
150 | { OPTION_NUMBER, 0, NULL, (v), NULL, (h), \ | |
151 | PARSE_OPT_NOARG | PARSE_OPT_NONEG, (f) } | |
df217ed6 | 152 | #define OPT_FILENAME(s, l, v, h) { OPTION_FILENAME, (s), (l), (v), \ |
54e6dc7d | 153 | N_("file"), (h) } |
73e9da01 | 154 | #define OPT_COLOR_FLAG(s, l, v, h) \ |
54e6dc7d | 155 | { OPTION_CALLBACK, (s), (l), (v), N_("when"), (h), PARSE_OPT_OPTARG, \ |
73e9da01 ML |
156 | parse_opt_color_flag_cb, (intptr_t)"always" } |
157 | ||
6acec038 RS |
158 | #define OPT_NOOP_NOARG(s, l) \ |
159 | { OPTION_CALLBACK, (s), (l), NULL, NULL, \ | |
54e6dc7d | 160 | N_("no-op (backward compatibility)"), \ |
6acec038 RS |
161 | PARSE_OPT_HIDDEN | PARSE_OPT_NOARG, parse_opt_noop_cb } |
162 | ||
4a59fd13 | 163 | /* parse_options() will filter out the processed options and leave the |
54e6dc7d NTND |
164 | * non-option arguments in argv[]. usagestr strings should be marked |
165 | * for translation with N_(). | |
4a59fd13 PH |
166 | * Returns the number of arguments left in argv[]. |
167 | */ | |
37782920 | 168 | extern int parse_options(int argc, const char **argv, const char *prefix, |
4a59fd13 | 169 | const struct option *options, |
d7a38c54 PH |
170 | const char * const usagestr[], int flags); |
171 | ||
172 | extern NORETURN void usage_with_options(const char * const *usagestr, | |
173 | const struct option *options); | |
4a59fd13 | 174 | |
451bb210 CC |
175 | extern NORETURN void usage_msg_opt(const char *msg, |
176 | const char * const *usagestr, | |
177 | const struct option *options); | |
178 | ||
1f275b7c DI |
179 | extern int optbug(const struct option *opt, const char *reason); |
180 | extern int opterror(const struct option *opt, const char *reason, int flags); | |
ff0a80af | 181 | #if defined(__GNUC__) |
87fe5df3 | 182 | #define opterror(o,r,f) (opterror((o),(r),(f)), const_error()) |
a469a101 JK |
183 | #endif |
184 | ||
3ea3c215 | 185 | /*----- incremental advanced APIs -----*/ |
7e7bbcb4 | 186 | |
ee68b87a PH |
187 | enum { |
188 | PARSE_OPT_HELP = -1, | |
189 | PARSE_OPT_DONE, | |
979240fe | 190 | PARSE_OPT_NON_OPTION, |
4b05548f | 191 | PARSE_OPT_UNKNOWN |
ee68b87a PH |
192 | }; |
193 | ||
26141b5b PH |
194 | /* |
195 | * It's okay for the caller to consume argv/argc in the usual way. | |
196 | * Other fields of that structure are private to parse-options and should not | |
197 | * be modified in any way. | |
198 | */ | |
7e7bbcb4 PH |
199 | struct parse_opt_ctx_t { |
200 | const char **argv; | |
201 | const char **out; | |
5ad0d3d5 | 202 | int argc, cpidx, total; |
7e7bbcb4 PH |
203 | const char *opt; |
204 | int flags; | |
37782920 | 205 | const char *prefix; |
7e7bbcb4 PH |
206 | }; |
207 | ||
208 | extern void parse_options_start(struct parse_opt_ctx_t *ctx, | |
37782920 | 209 | int argc, const char **argv, const char *prefix, |
9ca1169f | 210 | const struct option *options, int flags); |
7e7bbcb4 | 211 | |
ff43ec3e PH |
212 | extern int parse_options_step(struct parse_opt_ctx_t *ctx, |
213 | const struct option *options, | |
214 | const char * const usagestr[]); | |
215 | ||
7e7bbcb4 PH |
216 | extern int parse_options_end(struct parse_opt_ctx_t *ctx); |
217 | ||
023ff39b | 218 | extern struct option *parse_options_concat(struct option *a, struct option *b); |
7e7bbcb4 | 219 | |
0ce865b1 PH |
220 | /*----- some often used options -----*/ |
221 | extern int parse_opt_abbrev_cb(const struct option *, const char *, int); | |
1f4a711a | 222 | extern int parse_opt_approxidate_cb(const struct option *, const char *, int); |
27ec394a | 223 | extern int parse_opt_expiry_date_cb(const struct option *, const char *, int); |
73e9da01 | 224 | extern int parse_opt_color_flag_cb(const struct option *, const char *, int); |
7f87aff2 | 225 | extern int parse_opt_verbosity_cb(const struct option *, const char *, int); |
b2172fdf | 226 | extern int parse_opt_object_name(const struct option *, const char *, int); |
9d306b5a | 227 | extern int parse_opt_commits(const struct option *, const char *, int); |
cb6020bb | 228 | extern int parse_opt_tertiary(const struct option *, const char *, int); |
c8ba1639 | 229 | extern int parse_opt_string_list(const struct option *, const char *, int); |
6acec038 | 230 | extern int parse_opt_noop_cb(const struct option *, const char *, int); |
ce564eb1 | 231 | extern int parse_opt_unknown_cb(const struct option *, const char *, int); |
6b3ee18d | 232 | extern int parse_opt_passthru(const struct option *, const char *, int); |
ffad85c5 | 233 | extern int parse_opt_passthru_argv(const struct option *, const char *, int); |
0ce865b1 | 234 | |
212c0a6f NTND |
235 | #define OPT__VERBOSE(var, h) OPT_COUNTUP('v', "verbose", (var), (h)) |
236 | #define OPT__QUIET(var, h) OPT_COUNTUP('q', "quiet", (var), (h)) | |
7f87aff2 | 237 | #define OPT__VERBOSITY(var) \ |
54e6dc7d | 238 | { OPTION_CALLBACK, 'v', "verbose", (var), NULL, N_("be more verbose"), \ |
7f87aff2 | 239 | PARSE_OPT_NOARG, &parse_opt_verbosity_cb, 0 }, \ |
54e6dc7d | 240 | { OPTION_CALLBACK, 'q', "quiet", (var), NULL, N_("be more quiet"), \ |
7f87aff2 | 241 | PARSE_OPT_NOARG, &parse_opt_verbosity_cb, 0 } |
212c0a6f NTND |
242 | #define OPT__DRY_RUN(var, h) OPT_BOOL('n', "dry-run", (var), (h)) |
243 | #define OPT__FORCE(var, h) OPT_COUNTUP('f', "force", (var), (h)) | |
0ce865b1 | 244 | #define OPT__ABBREV(var) \ |
54e6dc7d NTND |
245 | { OPTION_CALLBACK, 0, "abbrev", (var), N_("n"), \ |
246 | N_("use <n> digits to display SHA-1s"), \ | |
0ce865b1 | 247 | PARSE_OPT_OPTARG, &parse_opt_abbrev_cb, 0 } |
73e9da01 ML |
248 | #define OPT__COLOR(var, h) \ |
249 | OPT_COLOR_FLAG(0, "color", (var), (h)) | |
7e29b825 | 250 | #define OPT_COLUMN(s, l, v, h) \ |
a054e049 | 251 | { OPTION_CALLBACK, (s), (l), (v), N_("style"), (h), PARSE_OPT_OPTARG, parseopt_column_callback } |
6b3ee18d PT |
252 | #define OPT_PASSTHRU(s, l, v, a, h, f) \ |
253 | { OPTION_CALLBACK, (s), (l), (v), (a), (h), (f), parse_opt_passthru } | |
ffad85c5 PT |
254 | #define OPT_PASSTHRU_ARGV(s, l, v, a, h, f) \ |
255 | { OPTION_CALLBACK, (s), (l), (v), (a), (h), (f), parse_opt_passthru_argv } | |
f266c916 KN |
256 | #define _OPT_CONTAINS_OR_WITH(name, variable, help, flag) \ |
257 | { OPTION_CALLBACK, 0, name, (variable), N_("commit"), (help), \ | |
258 | PARSE_OPT_LASTARG_DEFAULT | flag, \ | |
259 | parse_opt_commits, (intptr_t) "HEAD" \ | |
260 | } | |
eab98ee5 | 261 | #define OPT_CONTAINS(v, h) _OPT_CONTAINS_OR_WITH("contains", v, h, PARSE_OPT_NONEG) |
ac3f5a34 | 262 | #define OPT_NO_CONTAINS(v, h) _OPT_CONTAINS_OR_WITH("no-contains", v, h, PARSE_OPT_NONEG) |
eab98ee5 | 263 | #define OPT_WITH(v, h) _OPT_CONTAINS_OR_WITH("with", v, h, PARSE_OPT_HIDDEN | PARSE_OPT_NONEG) |
ac3f5a34 | 264 | #define OPT_WITHOUT(v, h) _OPT_CONTAINS_OR_WITH("without", v, h, PARSE_OPT_HIDDEN | PARSE_OPT_NONEG) |
0ce865b1 | 265 | |
4a59fd13 | 266 | #endif |