Clear window->flags when clearing winlinks
[tmux-openbsd.git] / cmd-if-shell.c
blobe810b0fc033b06d188b4e94bad1bbab3813d9319
1 /* $OpenBSD$ */
3 /*
4 * Copyright (c) 2009 Tiago Cunha <me@tiagocunha.org>
5 * Copyright (c) 2009 Nicholas Marriott <nicm@openbsd.org>
7 * Permission to use, copy, modify, and distribute this software for any
8 * purpose with or without fee is hereby granted, provided that the above
9 * copyright notice and this permission notice appear in all copies.
11 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
12 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
13 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
14 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
15 * WHATSOEVER RESULTING FROM LOSS OF MIND, USE, DATA OR PROFITS, WHETHER
16 * IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
17 * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
20 #include <sys/types.h>
21 #include <sys/wait.h>
23 #include <stdlib.h>
24 #include <string.h>
26 #include "tmux.h"
29 * Executes a tmux command if a shell command returns true or false.
32 enum cmd_retval cmd_if_shell_exec(struct cmd *, struct cmd_q *);
34 void cmd_if_shell_callback(struct job *);
35 void cmd_if_shell_done(struct cmd_q *);
36 void cmd_if_shell_free(void *);
38 const struct cmd_entry cmd_if_shell_entry = {
39 "if-shell", "if",
40 "bt:", 2, 3,
41 "[-b] " CMD_TARGET_PANE_USAGE " shell-command command [command]",
43 NULL,
44 NULL,
45 cmd_if_shell_exec
48 struct cmd_if_shell_data {
49 char *cmd_if;
50 char *cmd_else;
51 struct cmd_q *cmdq;
52 int bflag;
53 int started;
56 enum cmd_retval
57 cmd_if_shell_exec(struct cmd *self, struct cmd_q *cmdq)
59 struct args *args = self->args;
60 struct cmd_if_shell_data *cdata;
61 char *shellcmd;
62 struct client *c;
63 struct session *s = NULL;
64 struct winlink *wl = NULL;
65 struct window_pane *wp = NULL;
66 struct format_tree *ft;
68 if (args_has(args, 't'))
69 wl = cmd_find_pane(cmdq, args_get(args, 't'), &s, &wp);
70 else {
71 c = cmd_find_client(cmdq, NULL, 1);
72 if (c != NULL && c->session != NULL) {
73 s = c->session;
74 wl = s->curw;
75 wp = wl->window->active;
79 ft = format_create();
80 if (s != NULL)
81 format_session(ft, s);
82 if (s != NULL && wl != NULL)
83 format_winlink(ft, s, wl);
84 if (wp != NULL)
85 format_window_pane(ft, wp);
86 shellcmd = format_expand(ft, args->argv[0]);
87 format_free(ft);
89 cdata = xmalloc(sizeof *cdata);
90 cdata->cmd_if = xstrdup(args->argv[1]);
91 if (args->argc == 3)
92 cdata->cmd_else = xstrdup(args->argv[2]);
93 else
94 cdata->cmd_else = NULL;
95 cdata->bflag = args_has(args, 'b');
97 cdata->started = 0;
98 cdata->cmdq = cmdq;
99 cmdq->references++;
101 job_run(shellcmd, s, cmd_if_shell_callback, cmd_if_shell_free, cdata);
102 free(shellcmd);
104 if (cdata->bflag)
105 return (CMD_RETURN_NORMAL);
106 return (CMD_RETURN_WAIT);
109 void
110 cmd_if_shell_callback(struct job *job)
112 struct cmd_if_shell_data *cdata = job->data;
113 struct cmd_q *cmdq = cdata->cmdq, *cmdq1;
114 struct cmd_list *cmdlist;
115 char *cause, *cmd;
117 if (cmdq->dead)
118 return;
120 if (!WIFEXITED(job->status) || WEXITSTATUS(job->status) != 0)
121 cmd = cdata->cmd_else;
122 else
123 cmd = cdata->cmd_if;
124 if (cmd == NULL)
125 return;
127 if (cmd_string_parse(cmd, &cmdlist, NULL, 0, &cause) != 0) {
128 if (cause != NULL) {
129 cmdq_error(cmdq, "%s", cause);
130 free(cause);
132 return;
135 cdata->started = 1;
137 cmdq1 = cmdq_new(cmdq->client);
138 cmdq1->emptyfn = cmd_if_shell_done;
139 cmdq1->data = cdata;
141 cmdq_run(cmdq1, cmdlist);
142 cmd_list_free(cmdlist);
145 void
146 cmd_if_shell_done(struct cmd_q *cmdq1)
148 struct cmd_if_shell_data *cdata = cmdq1->data;
149 struct cmd_q *cmdq = cdata->cmdq;
151 if (!cmdq_free(cmdq) && !cdata->bflag)
152 cmdq_continue(cmdq);
154 cmdq_free(cmdq1);
156 free(cdata->cmd_else);
157 free(cdata->cmd_if);
158 free(cdata);
161 void
162 cmd_if_shell_free(void *data)
164 struct cmd_if_shell_data *cdata = data;
165 struct cmd_q *cmdq = cdata->cmdq;
167 if (cdata->started)
168 return;
170 if (!cmdq_free(cmdq) && !cdata->bflag)
171 cmdq_continue(cmdq);
173 free(cdata->cmd_else);
174 free(cdata->cmd_if);
175 free(cdata);