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Move cfg_causes local into cfg.c and remove struct causelist.

/* $OpenBSD: cmd-source-file.c,v 1.21 2014/10/27 22:23:47 nicm Exp $ */

/*
 * Copyright (c) 2008 Tiago Cunha <me@tiagocunha.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 "tmux.h"

/*
 * Sources a configuration file.
 */

enum cmd_retval	cmd_source_file_exec(struct cmd *, struct cmd_q *);

void		cmd_source_file_done(struct cmd_q *);

const struct cmd_entry cmd_source_file_entry = {
	"source-file", "source",
	"", 1, 1,
	"path",
	0,
	cmd_source_file_exec
};

enum cmd_retval
cmd_source_file_exec(struct cmd *self, struct cmd_q *cmdq)
{
	struct args	*args = self->args;
	struct cmd_q	*cmdq1;
	char		*cause;

	cmdq1 = cmdq_new(NULL);
	cmdq1->client = cmdq->client;
	cmdq1->emptyfn = cmd_source_file_done;
	cmdq1->data = cmdq;

	switch (load_cfg(args->argv[0], cmdq1, &cause)) {
	case -1:
		if (cfg_references == 0) {
			cmdq_free(cmdq1);
			cmdq_error(cmdq, "%s", cause);
			free(cause);
			return (CMD_RETURN_ERROR);
		}
		cfg_add_cause("%s", cause);
		free(cause);
		/* FALLTHROUGH */
	case 0:
		if (cfg_references == 0)
			cfg_print_causes(cmdq);
		cmdq_free(cmdq1);
		return (CMD_RETURN_NORMAL);
	}

	cmdq->references++;
	cfg_references++;

	cmdq_continue(cmdq1);
	return (CMD_RETURN_WAIT);
}

void
cmd_source_file_done(struct cmd_q *cmdq1)
{
	struct cmd_q	*cmdq = cmdq1->data;

	if (cmdq1->client_exit >= 0)
		cmdq->client_exit = cmdq1->client_exit;

	cmdq_free(cmdq1);

	cfg_references--;

	if (cmdq_free(cmdq))
		return;

	if (cfg_references == 0)
		cfg_print_causes(cmdq);
	cmdq_continue(cmdq);
}