cmd-set-option.c

   1 /* $OpenBSD$ */
   2
   3 /*
   4  * Copyright (c) 2007 Nicholas Marriott <nicm@users.sourceforge.net>
   5  *
   6  * Permission to use, copy, modify, and distribute this software for any
   7  * purpose with or without fee is hereby granted, provided that the above
   8  * copyright notice and this permission notice appear in all copies.
   9  *
  10  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
  11  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
  12  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
  13  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
  14  * WHATSOEVER RESULTING FROM LOSS OF MIND, USE, DATA OR PROFITS, WHETHER
  15  * IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
  16  * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  17  */
  18
  19 #include <sys/types.h>
  20
  21 #include <stdlib.h>
  22 #include <string.h>
  23
  24 #include "tmux.h"
  25
  26 /*
  27  * Set an option.
  28  */
  29
  30 enum cmd_retval cmd_set_option_exec(struct cmd *, struct cmd_q *);
  31
  32 enum cmd_retval cmd_set_option_user(struct cmd *, struct cmd_q *,
  33             const char *, const char *);
  34
  35 int     cmd_set_option_unset(struct cmd *, struct cmd_q *,
  36             const struct options_table_entry *, struct options *,
  37             const char *);
  38 int     cmd_set_option_set(struct cmd *, struct cmd_q *,
  39             const struct options_table_entry *, struct options *,
  40             const char *);
  41
  42 struct options_entry *cmd_set_option_string(struct cmd *, struct cmd_q *,
  43             const struct options_table_entry *, struct options *,
  44             const char *);
  45 struct options_entry *cmd_set_option_number(struct cmd *, struct cmd_q *,
  46             const struct options_table_entry *, struct options *,
  47             const char *);
  48 struct options_entry *cmd_set_option_key(struct cmd *, struct cmd_q *,
  49             const struct options_table_entry *, struct options *,
  50             const char *);
  51 struct options_entry *cmd_set_option_colour(struct cmd *, struct cmd_q *,
  52             const struct options_table_entry *, struct options *,
  53             const char *);
  54 struct options_entry *cmd_set_option_attributes(struct cmd *, struct cmd_q *,
  55             const struct options_table_entry *, struct options *,
  56             const char *);
  57 struct options_entry *cmd_set_option_flag(struct cmd *, struct cmd_q *,
  58             const struct options_table_entry *, struct options *,
  59             const char *);
  60 struct options_entry *cmd_set_option_choice(struct cmd *, struct cmd_q *,
  61             const struct options_table_entry *, struct options *,
  62             const char *);
  63
  64 const struct cmd_entry cmd_set_option_entry = {
  65         "set-option", "set",
  66         "agoqst:uw", 1, 2,
  67         "[-agosquw] [-t target-session|target-window] option [value]",
  68         0,
  69         NULL,
  70         NULL,
  71         cmd_set_option_exec
  72 };
  73
  74 const struct cmd_entry cmd_set_window_option_entry = {
  75         "set-window-option", "setw",
  76         "agoqt:u", 1, 2,
  77         "[-agoqu] " CMD_TARGET_WINDOW_USAGE " option [value]",
  78         0,
  79         NULL,
  80         NULL,
  81         cmd_set_option_exec
  82 };
  83
  84 enum cmd_retval
  85 cmd_set_option_exec(struct cmd *self, struct cmd_q *cmdq)
  86 {
  87         struct args                             *args = self->args;
  88         const struct options_table_entry        *table, *oe;
  89         struct session                          *s;
  90         struct winlink                          *wl;
  91         struct client                           *c;
  92         struct options                          *oo;
  93         struct window                           *w;
  94         const char                              *optstr, *valstr;
  95         u_int                                    i;
  96
  97         /* Get the option name and value. */
  98         optstr = args->argv[0];
  99         if (*optstr == '\0') {
 100                 cmdq_error(cmdq, "invalid option");
 101                 return (CMD_RETURN_ERROR);
 102         }
 103         if (args->argc < 2)
 104                 valstr = NULL;
 105         else
 106                 valstr = args->argv[1];
 107
 108         /* Is this a user option? */
 109         if (*optstr == '@')
 110                 return (cmd_set_option_user(self, cmdq, optstr, valstr));
 111
 112         /* Find the option entry, try each table. */
 113         table = oe = NULL;
 114         if (options_table_find(optstr, &table, &oe) != 0) {
 115                 cmdq_error(cmdq, "ambiguous option: %s", optstr);
 116                 return (CMD_RETURN_ERROR);
 117         }
 118         if (oe == NULL) {
 119                 cmdq_error(cmdq, "unknown option: %s", optstr);
 120                 return (CMD_RETURN_ERROR);
 121         }
 122
 123         /* Work out the tree from the table. */
 124         if (table == server_options_table)
 125                 oo = &global_options;
 126         else if (table == window_options_table) {
 127                 if (args_has(self->args, 'g'))
 128                         oo = &global_w_options;
 129                 else {
 130                         wl = cmd_find_window(cmdq, args_get(args, 't'), NULL);
 131                         if (wl == NULL)
 132                                 return (CMD_RETURN_ERROR);
 133                         oo = &wl->window->options;
 134                 }
 135         } else if (table == session_options_table) {
 136                 if (args_has(self->args, 'g'))
 137                         oo = &global_s_options;
 138                 else {
 139                         s = cmd_find_session(cmdq, args_get(args, 't'), 0);
 140                         if (s == NULL)
 141                                 return (CMD_RETURN_ERROR);
 142                         oo = &s->options;
 143                 }
 144         } else {
 145                 cmdq_error(cmdq, "unknown table");
 146                 return (CMD_RETURN_ERROR);
 147         }
 148
 149         /* Unset or set the option. */
 150         if (args_has(args, 'u')) {
 151                 if (cmd_set_option_unset(self, cmdq, oe, oo, valstr) != 0)
 152                         return (CMD_RETURN_ERROR);
 153         } else {
 154                 if (args_has(args, 'o') && options_find1(oo, optstr) != NULL) {
 155                         if (!args_has(args, 'q'))
 156                                 cmdq_print(cmdq, "already set: %s", optstr);
 157                         return (CMD_RETURN_NORMAL);
 158                 }
 159                 if (cmd_set_option_set(self, cmdq, oe, oo, valstr) != 0)
 160                         return (CMD_RETURN_ERROR);
 161         }
 162
 163         /* Start or stop timers when automatic-rename changed. */
 164         if (strcmp (oe->name, "automatic-rename") == 0) {
 165                 for (i = 0; i < ARRAY_LENGTH(&windows); i++) {
 166                         if ((w = ARRAY_ITEM(&windows, i)) == NULL)
 167                                 continue;
 168                         if (options_get_number(&w->options, "automatic-rename"))
 169                                 queue_window_name(w);
 170                         else if (event_initialized(&w->name_timer))
 171                                 evtimer_del(&w->name_timer);
 172                 }
 173         }
 174
 175         /* Update sizes and redraw. May not need it but meh. */
 176         recalculate_sizes();
 177         for (i = 0; i < ARRAY_LENGTH(&clients); i++) {
 178                 c = ARRAY_ITEM(&clients, i);
 179                 if (c != NULL && c->session != NULL)
 180                         server_redraw_client(c);
 181         }
 182
 183         return (CMD_RETURN_NORMAL);
 184 }
 185
 186 /* Set user option. */
 187 enum cmd_retval
 188 cmd_set_option_user(struct cmd *self, struct cmd_q *cmdq, const char* optstr,
 189     const char *valstr)
 190 {
 191         struct args     *args = self->args;
 192         struct session  *s;
 193         struct winlink  *wl;
 194         struct options  *oo;
 195
 196         if (args_has(args, 's'))
 197                 oo = &global_options;
 198         else if (args_has(self->args, 'w') ||
 199             self->entry == &cmd_set_window_option_entry) {
 200                 if (args_has(self->args, 'g'))
 201                         oo = &global_w_options;
 202                 else {
 203                         wl = cmd_find_window(cmdq, args_get(args, 't'), NULL);
 204                         if (wl == NULL)
 205                                 return (CMD_RETURN_ERROR);
 206                         oo = &wl->window->options;
 207                 }
 208         } else {
 209                 if (args_has(self->args, 'g'))
 210                         oo = &global_s_options;
 211                 else {
 212                         s = cmd_find_session(cmdq, args_get(args, 't'), 0);
 213                         if (s == NULL)
 214                                 return (CMD_RETURN_ERROR);
 215                         oo = &s->options;
 216                 }
 217         }
 218
 219         if (args_has(args, 'u')) {
 220                 if (options_find1(oo, optstr) == NULL) {
 221                         cmdq_error(cmdq, "unknown option: %s", optstr);
 222                         return (CMD_RETURN_ERROR);
 223                 }
 224                 if (valstr != NULL) {
 225                         cmdq_error(cmdq, "value passed to unset option: %s",
 226                             optstr);
 227                         return (CMD_RETURN_ERROR);
 228                 }
 229                 options_remove(oo, optstr);
 230         } else {
 231                 if (valstr == NULL) {
 232                         cmdq_error(cmdq, "empty value");
 233                         return (CMD_RETURN_ERROR);
 234                 }
 235                 if (args_has(args, 'o') && options_find1(oo, optstr) != NULL) {
 236                         if (!args_has(args, 'q'))
 237                                 cmdq_print(cmdq, "already set: %s", optstr);
 238                         return (CMD_RETURN_NORMAL);
 239                 }
 240                 options_set_string(oo, optstr, "%s", valstr);
 241                 if (!args_has(args, 'q')) {
 242                         cmdq_info(cmdq, "set option: %s -> %s", optstr,
 243                             valstr);
 244                 }
 245         }
 246         return (CMD_RETURN_NORMAL);
 247 }
 248
 249
 250 /* Unset an option. */
 251 int
 252 cmd_set_option_unset(struct cmd *self, struct cmd_q *cmdq,
 253     const struct options_table_entry *oe, struct options *oo, const char *value)
 254 {
 255         struct args     *args = self->args;
 256
 257         if (args_has(args, 'g')) {
 258                 cmdq_error(cmdq, "can't unset global option: %s", oe->name);
 259                 return (-1);
 260         }
 261         if (value != NULL) {
 262                 cmdq_error(cmdq, "value passed to unset option: %s", oe->name);
 263                 return (-1);
 264         }
 265
 266         options_remove(oo, oe->name);
 267         if (!args_has(args, 'q'))
 268                 cmdq_info(cmdq, "unset option: %s", oe->name);
 269         return (0);
 270 }
 271
 272 /* Set an option. */
 273 int
 274 cmd_set_option_set(struct cmd *self, struct cmd_q *cmdq,
 275     const struct options_table_entry *oe, struct options *oo, const char *value)
 276 {
 277         struct args             *args = self->args;
 278         struct options_entry    *o;
 279         const char              *s;
 280
 281         if (oe->type != OPTIONS_TABLE_FLAG && value == NULL) {
 282                 cmdq_error(cmdq, "empty value");
 283                 return (-1);
 284         }
 285
 286         o = NULL;
 287         switch (oe->type) {
 288         case OPTIONS_TABLE_STRING:
 289                 o = cmd_set_option_string(self, cmdq, oe, oo, value);
 290                 break;
 291         case OPTIONS_TABLE_NUMBER:
 292                 o = cmd_set_option_number(self, cmdq, oe, oo, value);
 293                 break;
 294         case OPTIONS_TABLE_KEY:
 295                 o = cmd_set_option_key(self, cmdq, oe, oo, value);
 296                 break;
 297         case OPTIONS_TABLE_COLOUR:
 298                 o = cmd_set_option_colour(self, cmdq, oe, oo, value);
 299                 break;
 300         case OPTIONS_TABLE_ATTRIBUTES:
 301                 o = cmd_set_option_attributes(self, cmdq, oe, oo, value);
 302                 break;
 303         case OPTIONS_TABLE_FLAG:
 304                 o = cmd_set_option_flag(self, cmdq, oe, oo, value);
 305                 break;
 306         case OPTIONS_TABLE_CHOICE:
 307                 o = cmd_set_option_choice(self, cmdq, oe, oo, value);
 308                 break;
 309         }
 310         if (o == NULL)
 311                 return (-1);
 312
 313         s = options_table_print_entry(oe, o, 0);
 314         if (!args_has(args, 'q'))
 315                 cmdq_info(cmdq, "set option: %s -> %s", oe->name, s);
 316         return (0);
 317 }
 318
 319 /* Set a string option. */
 320 struct options_entry *
 321 cmd_set_option_string(struct cmd *self, unused struct cmd_q *cmdq,
 322     const struct options_table_entry *oe, struct options *oo, const char *value)
 323 {
 324         struct args             *args = self->args;
 325         struct options_entry    *o;
 326         char                    *oldval, *newval;
 327
 328         if (args_has(args, 'a')) {
 329                 oldval = options_get_string(oo, oe->name);
 330                 xasprintf(&newval, "%s%s", oldval, value);
 331         } else
 332                 newval = xstrdup(value);
 333
 334         o = options_set_string(oo, oe->name, "%s", newval);
 335
 336         free(newval);
 337         return (o);
 338 }
 339
 340 /* Set a number option. */
 341 struct options_entry *
 342 cmd_set_option_number(unused struct cmd *self, struct cmd_q *cmdq,
 343     const struct options_table_entry *oe, struct options *oo, const char *value)
 344 {
 345         long long        ll;
 346         const char      *errstr;
 347
 348         ll = strtonum(value, oe->minimum, oe->maximum, &errstr);
 349         if (errstr != NULL) {
 350                 cmdq_error(cmdq, "value is %s: %s", errstr, value);
 351                 return (NULL);
 352         }
 353
 354         return (options_set_number(oo, oe->name, ll));
 355 }
 356
 357 /* Set a key option. */
 358 struct options_entry *
 359 cmd_set_option_key(unused struct cmd *self, struct cmd_q *cmdq,
 360     const struct options_table_entry *oe, struct options *oo, const char *value)
 361 {
 362         int     key;
 363
 364         if ((key = key_string_lookup_string(value)) == KEYC_NONE) {
 365                 cmdq_error(cmdq, "bad key: %s", value);
 366                 return (NULL);
 367         }
 368
 369         return (options_set_number(oo, oe->name, key));
 370 }
 371
 372 /* Set a colour option. */
 373 struct options_entry *
 374 cmd_set_option_colour(unused struct cmd *self, struct cmd_q *cmdq,
 375     const struct options_table_entry *oe, struct options *oo, const char *value)
 376 {
 377         int     colour;
 378
 379         if ((colour = colour_fromstring(value)) == -1) {
 380                 cmdq_error(cmdq, "bad colour: %s", value);
 381                 return (NULL);
 382         }
 383
 384         return (options_set_number(oo, oe->name, colour));
 385 }
 386
 387 /* Set an attributes option. */
 388 struct options_entry *
 389 cmd_set_option_attributes(unused struct cmd *self, struct cmd_q *cmdq,
 390     const struct options_table_entry *oe, struct options *oo, const char *value)
 391 {
 392         int     attr;
 393
 394         if ((attr = attributes_fromstring(value)) == -1) {
 395                 cmdq_error(cmdq, "bad attributes: %s", value);
 396                 return (NULL);
 397         }
 398
 399         return (options_set_number(oo, oe->name, attr));
 400 }
 401
 402 /* Set a flag option. */
 403 struct options_entry *
 404 cmd_set_option_flag(unused struct cmd *self, struct cmd_q *cmdq,
 405     const struct options_table_entry *oe, struct options *oo, const char *value)
 406 {
 407         int     flag;
 408
 409         if (value == NULL || *value == '\0')
 410                 flag = !options_get_number(oo, oe->name);
 411         else {
 412                 if ((value[0] == '1' && value[1] == '\0') ||
 413                     strcasecmp(value, "on") == 0 ||
 414                     strcasecmp(value, "yes") == 0)
 415                         flag = 1;
 416                 else if ((value[0] == '0' && value[1] == '\0') ||
 417                     strcasecmp(value, "off") == 0 ||
 418                     strcasecmp(value, "no") == 0)
 419                         flag = 0;
 420                 else {
 421                         cmdq_error(cmdq, "bad value: %s", value);
 422                         return (NULL);
 423                 }
 424         }
 425
 426         return (options_set_number(oo, oe->name, flag));
 427 }
 428
 429 /* Set a choice option. */
 430 struct options_entry *
 431 cmd_set_option_choice(unused struct cmd *self, struct cmd_q *cmdq,
 432     const struct options_table_entry *oe, struct options *oo,
 433     const char *value)
 434 {
 435         const char      **choicep;
 436         int               n, choice = -1;
 437
 438         n = 0;
 439         for (choicep = oe->choices; *choicep != NULL; choicep++) {
 440                 n++;
 441                 if (strncmp(*choicep, value, strlen(value)) != 0)
 442                         continue;
 443
 444                 if (choice != -1) {
 445                         cmdq_error(cmdq, "ambiguous value: %s", value);
 446                         return (NULL);
 447                 }
 448                 choice = n - 1;
 449         }
 450         if (choice == -1) {
 451                 cmdq_error(cmdq, "unknown value: %s", value);
 452                 return (NULL);
 453         }
 454
 455         return (options_set_number(oo, oe->name, choice));
 456 }