Annotation of embedaddon/tmux/cmd-set-hook.c, revision 1.1
1.1 ! misho 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: }
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