mirror of
https://github.com/tmux/tmux.git
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210 lines
4.8 KiB
C
210 lines
4.8 KiB
C
/* $OpenBSD$ */
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/*
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* Copyright (c) 2009 Tiago Cunha <me@tiagocunha.org>
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* Copyright (c) 2009 Nicholas Marriott <nicm@openbsd.org>
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*
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* Permission to use, copy, modify, and distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF MIND, USE, DATA OR PROFITS, WHETHER
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* IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
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* OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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#include <sys/types.h>
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#include <sys/wait.h>
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#include <stdlib.h>
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#include <string.h>
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#include "tmux.h"
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/*
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* Executes a tmux command if a shell command returns true or false.
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*/
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enum cmd_retval cmd_if_shell_exec(struct cmd *, struct cmd_q *);
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void cmd_if_shell_callback(struct job *);
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void cmd_if_shell_done(struct cmd_q *);
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void cmd_if_shell_free(void *);
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const struct cmd_entry cmd_if_shell_entry = {
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"if-shell", "if",
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"bFt:", 2, 3,
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"[-bF] " CMD_TARGET_PANE_USAGE " shell-command command [command]",
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0,
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cmd_if_shell_exec
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};
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struct cmd_if_shell_data {
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char *cmd_if;
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char *cmd_else;
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struct cmd_q *cmdq;
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struct mouse_event mouse;
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int bflag;
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int references;
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};
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enum cmd_retval
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cmd_if_shell_exec(struct cmd *self, struct cmd_q *cmdq)
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{
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struct args *args = self->args;
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struct cmd_if_shell_data *cdata;
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char *shellcmd, *cmd, *cause;
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struct cmd_list *cmdlist;
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struct client *c;
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struct session *s = NULL;
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struct winlink *wl = NULL;
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struct window_pane *wp = NULL;
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struct format_tree *ft;
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int cwd;
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if (args_has(args, 't')) {
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wl = cmd_find_pane(cmdq, args_get(args, 't'), &s, &wp);
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cwd = wp->cwd;
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} else {
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c = cmd_find_client(cmdq, NULL, 1);
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if (c != NULL && c->session != NULL) {
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s = c->session;
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wl = s->curw;
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wp = wl->window->active;
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}
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if (cmdq->client != NULL && cmdq->client->session == NULL)
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cwd = cmdq->client->cwd;
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else if (s != NULL)
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cwd = s->cwd;
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else
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cwd = -1;
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}
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ft = format_create();
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format_defaults(ft, NULL, s, wl, wp);
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shellcmd = format_expand(ft, args->argv[0]);
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format_free(ft);
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if (args_has(args, 'F')) {
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cmd = NULL;
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if (*shellcmd != '0' && *shellcmd != '\0')
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cmd = args->argv[1];
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else if (args->argc == 3)
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cmd = args->argv[2];
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if (cmd == NULL)
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return (CMD_RETURN_NORMAL);
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if (cmd_string_parse(cmd, &cmdlist, NULL, 0, &cause) != 0) {
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if (cause != NULL) {
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cmdq_error(cmdq, "%s", cause);
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free(cause);
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}
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return (CMD_RETURN_ERROR);
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}
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cmdq_run(cmdq, cmdlist, &cmdq->item->mouse);
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cmd_list_free(cmdlist);
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return (CMD_RETURN_NORMAL);
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}
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cdata = xmalloc(sizeof *cdata);
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cdata->cmd_if = xstrdup(args->argv[1]);
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if (args->argc == 3)
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cdata->cmd_else = xstrdup(args->argv[2]);
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else
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cdata->cmd_else = NULL;
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cdata->bflag = args_has(args, 'b');
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cdata->cmdq = cmdq;
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memcpy(&cdata->mouse, &cmdq->item->mouse, sizeof cdata->mouse);
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cmdq->references++;
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cdata->references = 1;
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job_run(shellcmd, s, cwd, cmd_if_shell_callback, cmd_if_shell_free,
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cdata);
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free(shellcmd);
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if (cdata->bflag)
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return (CMD_RETURN_NORMAL);
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return (CMD_RETURN_WAIT);
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}
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void
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cmd_if_shell_callback(struct job *job)
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{
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struct cmd_if_shell_data *cdata = job->data;
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struct cmd_q *cmdq = cdata->cmdq, *cmdq1;
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struct cmd_list *cmdlist;
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char *cause, *cmd;
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if (cmdq->dead)
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return;
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if (!WIFEXITED(job->status) || WEXITSTATUS(job->status) != 0)
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cmd = cdata->cmd_else;
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else
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cmd = cdata->cmd_if;
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if (cmd == NULL)
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return;
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if (cmd_string_parse(cmd, &cmdlist, NULL, 0, &cause) != 0) {
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if (cause != NULL) {
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cmdq_error(cmdq, "%s", cause);
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free(cause);
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}
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return;
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}
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cmdq1 = cmdq_new(cmdq->client);
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cmdq1->emptyfn = cmd_if_shell_done;
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cmdq1->data = cdata;
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cdata->references++;
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cmdq_run(cmdq1, cmdlist, &cdata->mouse);
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cmd_list_free(cmdlist);
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}
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void
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cmd_if_shell_done(struct cmd_q *cmdq1)
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{
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struct cmd_if_shell_data *cdata = cmdq1->data;
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struct cmd_q *cmdq = cdata->cmdq;
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if (cmdq1->client_exit >= 0)
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cmdq->client_exit = cmdq1->client_exit;
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cmdq_free(cmdq1);
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if (--cdata->references != 0)
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return;
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if (!cmdq_free(cmdq) && !cdata->bflag)
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cmdq_continue(cmdq);
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free(cdata->cmd_else);
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free(cdata->cmd_if);
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free(cdata);
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}
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void
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cmd_if_shell_free(void *data)
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{
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struct cmd_if_shell_data *cdata = data;
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struct cmd_q *cmdq = cdata->cmdq;
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if (--cdata->references != 0)
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return;
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if (!cmdq_free(cmdq) && !cdata->bflag)
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cmdq_continue(cmdq);
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free(cdata->cmd_else);
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free(cdata->cmd_if);
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free(cdata);
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}
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