Return to cmd-set-hook.c CVS log

Up to [ELWIX - Embedded LightWeight unIX -] / embedaddon / tmux

tmux 2.4

    1: /* $OpenBSD$ */
    2: 
    3: /*
    4:  * Copyright (c) 2012 Thomas Adam <thomas@xteddy.org>
    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 or show global or session hooks.
   28:  */
   29: 
   30: static enum cmd_retval cmd_set_hook_exec(struct cmd *, struct cmdq_item *);
   31: 
   32: const struct cmd_entry cmd_set_hook_entry = {
   33: 	.name = "set-hook",
   34: 	.alias = NULL,
   35: 
   36: 	.args = { "gt:u", 1, 2 },
   37: 	.usage = "[-gu] " CMD_TARGET_SESSION_USAGE " hook-name [command]",
   38: 
   39: 	.tflag = CMD_SESSION_CANFAIL,
   40: 
   41: 	.flags = CMD_AFTERHOOK,
   42: 	.exec = cmd_set_hook_exec
   43: };
   44: 
   45: const struct cmd_entry cmd_show_hooks_entry = {
   46: 	.name = "show-hooks",
   47: 	.alias = NULL,
   48: 
   49: 	.args = { "gt:", 0, 1 },
   50: 	.usage = "[-g] " CMD_TARGET_SESSION_USAGE,
   51: 
   52: 	.tflag = CMD_SESSION,
   53: 
   54: 	.flags = CMD_AFTERHOOK,
   55: 	.exec = cmd_set_hook_exec
   56: };
   57: 
   58: static enum cmd_retval
   59: cmd_set_hook_exec(struct cmd *self, struct cmdq_item *item)
   60: {
   61: 	struct args	*args = self->args;
   62: 	struct cmd_list	*cmdlist;
   63: 	struct hooks	*hooks;
   64: 	struct hook	*hook;
   65: 	char		*cause, *tmp;
   66: 	const char	*name, *cmd, *target;
   67: 
   68: 	if (args_has(args, 'g'))
   69: 		hooks = global_hooks;
   70: 	else {
   71: 		if (item->state.tflag.s == NULL) {
   72: 			target = args_get(args, 't');
   73: 			if (target != NULL)
   74: 				cmdq_error(item, "no such session: %s", target);
   75: 			else
   76: 				cmdq_error(item, "no current session");
   77: 			return (CMD_RETURN_ERROR);
   78: 		}
   79: 		hooks = item->state.tflag.s->hooks;
   80: 	}
   81: 
   82: 	if (self->entry == &cmd_show_hooks_entry) {
   83: 		hook = hooks_first(hooks);
   84: 		while (hook != NULL) {
   85: 			tmp = cmd_list_print(hook->cmdlist);
   86: 			cmdq_print(item, "%s -> %s", hook->name, tmp);
   87: 			free(tmp);
   88: 
   89: 			hook = hooks_next(hook);
   90: 		}
   91: 		return (CMD_RETURN_NORMAL);
   92: 	}
   93: 
   94: 	name = args->argv[0];
   95: 	if (*name == '\0') {
   96: 		cmdq_error(item, "invalid hook name");
   97: 		return (CMD_RETURN_ERROR);
   98: 	}
   99: 	if (args->argc < 2)
  100: 		cmd = NULL;
  101: 	else
  102: 		cmd = args->argv[1];
  103: 
  104: 	if (args_has(args, 'u')) {
  105: 		if (cmd != NULL) {
  106: 			cmdq_error(item, "command passed to unset hook: %s",
  107: 			    name);
  108: 			return (CMD_RETURN_ERROR);
  109: 		}
  110: 		hooks_remove(hooks, name);
  111: 		return (CMD_RETURN_NORMAL);
  112: 	}
  113: 
  114: 	if (cmd == NULL) {
  115: 		cmdq_error(item, "no command to set hook: %s", name);
  116: 		return (CMD_RETURN_ERROR);
  117: 	}
  118: 	cmdlist = cmd_string_parse(cmd, NULL, 0, &cause);
  119: 	if (cmdlist == NULL) {
  120: 		if (cause != NULL) {
  121: 			cmdq_error(item, "%s", cause);
  122: 			free(cause);
  123: 		}
  124: 		return (CMD_RETURN_ERROR);
  125: 	}
  126: 	hooks_add(hooks, name, cmdlist);
  127: 	cmd_list_free(cmdlist);
  128: 
  129: 	return (CMD_RETURN_NORMAL);
  130: }