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Add hooks infrastructure, basic commands (set-hook, show-hooks) and a

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couple of not very useful client hooks. This will eventually let
commands be run at various points and on notifications. Joint work with
Thomas Adam.
This commit is contained in:
nicm
2015-12-08 01:10:31 +00:00
parent dbfce2a4d8
commit d2fb0efcd1
11 changed files with 364 additions and 13 deletions
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116
cmd-set-hook.c Normal file
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/* $OpenBSD$ */
/*
* Copyright (c) 2012 Thomas Adam <thomas@xteddy.org>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF MIND, USE, DATA OR PROFITS, WHETHER
* IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
* OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#include <sys/types.h>
#include <stdlib.h>
#include <string.h>
#include "tmux.h"
/*
* Set or show global or session hooks.
*/
enum cmd_retval cmd_set_hook_exec(struct cmd *, struct cmd_q *);
const struct cmd_entry cmd_set_hook_entry = {
"set-hook", NULL,
"gt:u", 1, 2,
"[-gu] " CMD_TARGET_SESSION_USAGE " hook-name [command]",
0,
cmd_set_hook_exec
};
const struct cmd_entry cmd_show_hooks_entry = {
"show-hooks", NULL,
"gt:", 0, 1,
"[-g] " CMD_TARGET_SESSION_USAGE,
0,
cmd_set_hook_exec
};
enum cmd_retval
cmd_set_hook_exec(struct cmd *self, struct cmd_q *cmdq)
{
struct args *args = self->args;
struct session *s;
struct cmd_list *cmdlist;
struct hooks *hooks;
struct hook *hook;
char *cause, *tmp;
const char *name, *cmd;
if (args_has(args, 'g'))
hooks = global_hooks;
else {
s = cmd_find_session(cmdq, args_get(args, 't'), 0);
if (s == NULL)
return (CMD_RETURN_ERROR);
hooks = s->hooks;
}
if (self->entry == &cmd_show_hooks_entry) {
hook = hooks_first(hooks);
while (hook != NULL) {
tmp = cmd_list_print(hook->cmdlist);
cmdq_print(cmdq, "%s -> %s", hook->name, tmp);
free(tmp);
hook = hooks_next(hook);
}
return (CMD_RETURN_NORMAL);
}
name = args->argv[0];
if (*name == '\0') {
cmdq_error(cmdq, "invalid hook name");
return (CMD_RETURN_ERROR);
}
if (args->argc < 2)
cmd = NULL;
else
cmd = args->argv[1];
if (args_has(args, 'u')) {
if (cmd != NULL) {
cmdq_error(cmdq, "command passed to unset hook: %s",
name);
return (CMD_RETURN_ERROR);
}
if ((hook = hooks_find(hooks, name)) != NULL)
hooks_remove(hooks, hook);
return (CMD_RETURN_NORMAL);
}
if (cmd == NULL) {
cmdq_error(cmdq, "no command to set hook: %s", name);
return (CMD_RETURN_ERROR);
}
if (cmd_string_parse(cmd, &cmdlist, NULL, 0, &cause) != 0) {
if (cause != NULL) {
cmdq_error(cmdq, "%s", cause);
free(cause);
}
return (CMD_RETURN_ERROR);
}
hooks_add(hooks, name, cmdlist);
cmd_list_free(cmdlist);
return (CMD_RETURN_NORMAL);
}