tmux/cmd-run-shell.c
nicm 7d23d019c0 Add a window or pane id "tag" to each format tree and use it to separate
jobs, this means that if the same job is used for different windows or
panes (for example in pane-border-format), it will be run separately for
each pane.
2017-02-03 11:57:27 +00:00

181 lines
4.3 KiB
C

/* $OpenBSD$ */
/*
* Copyright (c) 2009 Tiago Cunha <me@tiagocunha.org>
* Copyright (c) 2009 Nicholas Marriott <nicm@openbsd.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 <sys/wait.h>
#include <stdlib.h>
#include <string.h>
#include "tmux.h"
/*
* Runs a command without a window.
*/
static enum cmd_retval cmd_run_shell_exec(struct cmd *, struct cmdq_item *);
static void cmd_run_shell_callback(struct job *);
static void cmd_run_shell_free(void *);
static void cmd_run_shell_print(struct job *, const char *);
const struct cmd_entry cmd_run_shell_entry = {
.name = "run-shell",
.alias = "run",
.args = { "bt:", 1, 1 },
.usage = "[-b] " CMD_TARGET_PANE_USAGE " shell-command",
.tflag = CMD_PANE_CANFAIL,
.flags = 0,
.exec = cmd_run_shell_exec
};
struct cmd_run_shell_data {
char *cmd;
struct cmdq_item *item;
int wp_id;
};
static void
cmd_run_shell_print(struct job *job, const char *msg)
{
struct cmd_run_shell_data *cdata = job->data;
struct window_pane *wp = NULL;
struct cmd_find_state fs;
if (cdata->wp_id != -1)
wp = window_pane_find_by_id(cdata->wp_id);
if (wp == NULL) {
if (cdata->item != NULL) {
cmdq_print(cdata->item, "%s", msg);
return;
}
if (cmd_find_current (&fs, NULL, CMD_FIND_QUIET) != 0)
return;
wp = fs.wp;
if (wp == NULL)
return;
}
if (window_pane_set_mode(wp, &window_copy_mode) == 0)
window_copy_init_for_output(wp);
if (wp->mode == &window_copy_mode)
window_copy_add(wp, "%s", msg);
}
static enum cmd_retval
cmd_run_shell_exec(struct cmd *self, struct cmdq_item *item)
{
struct args *args = self->args;
struct cmd_run_shell_data *cdata;
char *shellcmd;
struct session *s = item->state.tflag.s;
struct winlink *wl = item->state.tflag.wl;
struct window_pane *wp = item->state.tflag.wp;
struct format_tree *ft;
const char *cwd;
if (item->client != NULL && item->client->session == NULL)
cwd = item->client->cwd;
else if (s != NULL)
cwd = s->cwd;
else
cwd = NULL;
ft = format_create(item, FORMAT_NONE, 0);
format_defaults(ft, item->state.c, s, wl, wp);
shellcmd = format_expand(ft, args->argv[0]);
format_free(ft);
cdata = xcalloc(1, sizeof *cdata);
cdata->cmd = shellcmd;
if (args_has(args, 't') && wp != NULL)
cdata->wp_id = wp->id;
else
cdata->wp_id = -1;
if (!args_has(args, 'b'))
cdata->item = item;
job_run(shellcmd, s, cwd, cmd_run_shell_callback, cmd_run_shell_free,
cdata);
if (args_has(args, 'b'))
return (CMD_RETURN_NORMAL);
return (CMD_RETURN_WAIT);
}
static void
cmd_run_shell_callback(struct job *job)
{
struct cmd_run_shell_data *cdata = job->data;
char *cmd = cdata->cmd, *msg, *line;
size_t size;
int retcode;
u_int lines;
lines = 0;
do {
if ((line = evbuffer_readline(job->event->input)) != NULL) {
cmd_run_shell_print(job, line);
free(line);
lines++;
}
} while (line != NULL);
size = EVBUFFER_LENGTH(job->event->input);
if (size != 0) {
line = xmalloc(size + 1);
memcpy(line, EVBUFFER_DATA(job->event->input), size);
line[size] = '\0';
cmd_run_shell_print(job, line);
lines++;
free(line);
}
msg = NULL;
if (WIFEXITED(job->status)) {
if ((retcode = WEXITSTATUS(job->status)) != 0)
xasprintf(&msg, "'%s' returned %d", cmd, retcode);
} else if (WIFSIGNALED(job->status)) {
retcode = WTERMSIG(job->status);
xasprintf(&msg, "'%s' terminated by signal %d", cmd, retcode);
}
if (msg != NULL)
cmd_run_shell_print(job, msg);
free(msg);
if (cdata->item != NULL)
cdata->item->flags &= ~CMDQ_WAITING;
}
static void
cmd_run_shell_free(void *data)
{
struct cmd_run_shell_data *cdata = data;
free(cdata->cmd);
free(cdata);
}