Annotation of embedaddon/tmux/cmd-set-hook.c, revision 1.1.1.1
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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