Return to names.c CVS log

Up to [local] / src / usr.bin / tmux

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.

/* $OpenBSD: names.c,v 1.39 2017/02/03 11:57:27 nicm Exp $ */

/*
 * Copyright (c) 2009 Nicholas Marriott <nicholas.marriott@gmail.com>
 *
 * 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 <ctype.h>
#include <libgen.h>
#include <stdlib.h>
#include <string.h>

#include "tmux.h"

static void	 name_time_callback(int, short, void *);
static int	 name_time_expired(struct window *, struct timeval *);

static char	*format_window_name(struct window *);

static void
name_time_callback(__unused int fd, __unused short events, void *arg)
{
	struct window	*w = arg;

	/* The event loop will call check_window_name for us on the way out. */
	log_debug("@%u name timer expired", w->id);
}

static int
name_time_expired(struct window *w, struct timeval *tv)
{
	struct timeval	offset;

	timersub(tv, &w->name_time, &offset);
	if (offset.tv_sec != 0 || offset.tv_usec > NAME_INTERVAL)
		return (0);
	return (NAME_INTERVAL - offset.tv_usec);
}

void
check_window_name(struct window *w)
{
	struct timeval	 tv, next;
	char		*name;
	int		 left;

	if (w->active == NULL)
		return;

	if (!options_get_number(w->options, "automatic-rename"))
		return;

	if (~w->active->flags & PANE_CHANGED) {
		log_debug("@%u active pane not changed", w->id);
		return;
	}
	log_debug("@%u active pane changed", w->id);

	gettimeofday(&tv, NULL);
	left = name_time_expired(w, &tv);
	if (left != 0) {
		if (!event_initialized(&w->name_event))
			evtimer_set(&w->name_event, name_time_callback, w);
		if (!evtimer_pending(&w->name_event, NULL)) {
			log_debug("@%u name timer queued (%d left)", w->id,
			    left);
			timerclear(&next);
			next.tv_usec = left;
			event_add(&w->name_event, &next);
		} else {
			log_debug("@%u name timer already queued (%d left)",
			    w->id, left);
		}
		return;
	}
	memcpy(&w->name_time, &tv, sizeof w->name_time);
	if (event_initialized(&w->name_event))
		evtimer_del(&w->name_event);

	w->active->flags &= ~PANE_CHANGED;

	name = format_window_name(w);
	if (strcmp(name, w->name) != 0) {
		log_debug("@%u new name %s (was %s)", w->id, name, w->name);
		window_set_name(w, name);
		server_status_window(w);
	} else
		log_debug("@%u name not changed (still %s)", w->id, w->name);

	free(name);
}

char *
default_window_name(struct window *w)
{
	char    *cmd, *s;

	cmd = cmd_stringify_argv(w->active->argc, w->active->argv);
	if (cmd != NULL && *cmd != '\0')
		s = parse_window_name(cmd);
	else
		s = parse_window_name(w->active->shell);
	free(cmd);
	return (s);
}

static char *
format_window_name(struct window *w)
{
	struct format_tree	*ft;
	const char		*fmt;
	char			*name;

	ft = format_create(NULL, FORMAT_WINDOW|w->id, 0);
	format_defaults_window(ft, w);
	format_defaults_pane(ft, w->active);

	fmt = options_get_string(w->options, "automatic-rename-format");
	name = format_expand(ft, fmt);

	format_free(ft);
	return (name);
}

char *
parse_window_name(const char *in)
{
	char	*copy, *name, *ptr;

	name = copy = xstrdup(in);
	if (strncmp(name, "exec ", (sizeof "exec ") - 1) == 0)
		name = name + (sizeof "exec ") - 1;

	while (*name == ' ' || *name == '-')
		name++;
	if ((ptr = strchr(name, ' ')) != NULL)
		*ptr = '\0';

	if (*name != '\0') {
		ptr = name + strlen(name) - 1;
		while (ptr > name && !isalnum((u_char)*ptr))
			*ptr-- = '\0';
	}

	if (*name == '/')
		name = basename(name);
	name = xstrdup(name);
	free(copy);
	return (name);
}