Annotation of src/usr.bin/tmux/cmd-set-hook.c, Revision 1.7
1.7 ! nicm 1: /* $OpenBSD: cmd-set-hook.c,v 1.6 2016/05/12 13:21:56 nicm Exp $ */
1.1 nicm 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:
1.7 ! nicm 30: static enum cmd_retval cmd_set_hook_exec(struct cmd *, struct cmd_q *);
1.1 nicm 31:
32: const struct cmd_entry cmd_set_hook_entry = {
1.4 nicm 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:
1.6 nicm 39: .tflag = CMD_SESSION_CANFAIL,
1.5 nicm 40:
41: .flags = 0,
1.4 nicm 42: .exec = cmd_set_hook_exec
1.1 nicm 43: };
44:
45: const struct cmd_entry cmd_show_hooks_entry = {
1.4 nicm 46: .name = "show-hooks",
47: .alias = NULL,
48:
49: .args = { "gt:", 0, 1 },
50: .usage = "[-g] " CMD_TARGET_SESSION_USAGE,
51:
1.5 nicm 52: .tflag = CMD_SESSION,
53:
54: .flags = 0,
1.4 nicm 55: .exec = cmd_set_hook_exec
1.1 nicm 56: };
57:
1.7 ! nicm 58: static enum cmd_retval
1.1 nicm 59: cmd_set_hook_exec(struct cmd *self, struct cmd_q *cmdq)
60: {
61: struct args *args = self->args;
62: struct cmd_list *cmdlist;
63: struct hooks *hooks;
64: struct hook *hook;
65: char *cause, *tmp;
1.6 nicm 66: const char *name, *cmd, *target;
1.1 nicm 67:
68: if (args_has(args, 'g'))
69: hooks = global_hooks;
1.6 nicm 70: else {
71: if (cmdq->state.tflag.s == NULL) {
72: target = args_get(args, 't');
73: if (target != NULL)
74: cmdq_error(cmdq, "no such session: %s", target);
75: else
76: cmdq_error(cmdq, "no current session");
77: return (CMD_RETURN_ERROR);
78: }
1.3 nicm 79: hooks = cmdq->state.tflag.s->hooks;
1.6 nicm 80: }
1.1 nicm 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(cmdq, "%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(cmdq, "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(cmdq, "command passed to unset hook: %s",
107: name);
108: return (CMD_RETURN_ERROR);
109: }
1.2 nicm 110: hooks_remove(hooks, name);
1.1 nicm 111: return (CMD_RETURN_NORMAL);
112: }
113:
114: if (cmd == NULL) {
115: cmdq_error(cmdq, "no command to set hook: %s", name);
116: return (CMD_RETURN_ERROR);
117: }
118: if (cmd_string_parse(cmd, &cmdlist, NULL, 0, &cause) != 0) {
119: if (cause != NULL) {
120: cmdq_error(cmdq, "%s", cause);
121: free(cause);
122: }
123: return (CMD_RETURN_ERROR);
124: }
125: hooks_add(hooks, name, cmdlist);
126: cmd_list_free(cmdlist);
127:
128: return (CMD_RETURN_NORMAL);
129: }