Return to cmd-source-file.c CVS log

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When adding a list with multiple commands to the queue, the next item to
insert after needs to be the last one added, not the first. Reported by
Jason Kim in GitHub issue 2023.

/* $OpenBSD: cmd-source-file.c,v 1.44 2019/12/19 09:22:33 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 <errno.h>
#include <glob.h>
#include <stdlib.h>
#include <string.h>
#include <vis.h>

#include "tmux.h"

/*
 * Sources a configuration file.
 */

static enum cmd_retval	cmd_source_file_exec(struct cmd *, struct cmdq_item *);

const struct cmd_entry cmd_source_file_entry = {
	.name = "source-file",
	.alias = "source",

	.args = { "nqv", 1, -1 },
	.usage = "[-nqv] path ...",

	.flags = 0,
	.exec = cmd_source_file_exec
};

struct cmd_source_file_data {
	struct cmdq_item	 *item;
	int			  flags;

	struct cmdq_item	 *after;
	enum cmd_retval		  retval;

	u_int			  current;
	char			**files;
	u_int			  nfiles;
};

static enum cmd_retval
cmd_source_file_complete_cb(struct cmdq_item *item, __unused void *data)
{
	cfg_print_causes(item);
	return (CMD_RETURN_NORMAL);
}

static void
cmd_source_file_complete(struct client *c, struct cmd_source_file_data *cdata)
{
	struct cmdq_item	*new_item;

	if (cfg_finished) {
		if (cdata->retval == CMD_RETURN_ERROR && c->session == NULL)
			c->retval = 1;
		new_item = cmdq_get_callback(cmd_source_file_complete_cb, NULL);
		cmdq_insert_after(cdata->after, new_item);
	}

	free(cdata->files);
	free(cdata);
}

static void
cmd_source_file_done(struct client *c, const char *path, int error,
    int closed, struct evbuffer *buffer, void *data)
{
	struct cmd_source_file_data	*cdata = data;
	struct cmdq_item		*item = cdata->item;
	void				*bdata = EVBUFFER_DATA(buffer);
	size_t				 bsize = EVBUFFER_LENGTH(buffer);
	u_int				 n;
	struct cmdq_item		*new_item;

	if (!closed)
		return;

	if (error != 0)
		cmdq_error(item, "%s: %s", path, strerror(error));
	else if (bsize != 0) {
		if (load_cfg_from_buffer(bdata, bsize, path, c, cdata->after,
		    cdata->flags, &new_item) < 0)
			cdata->retval = CMD_RETURN_ERROR;
		else if (new_item != NULL)
			cdata->after = new_item;
	}

	n = ++cdata->current;
	if (n < cdata->nfiles)
		file_read(c, cdata->files[n], cmd_source_file_done, cdata);
	else {
		cmd_source_file_complete(c, cdata);
		cmdq_continue(item);
	}
}

static void
cmd_source_file_add(struct cmd_source_file_data *cdata, const char *path)
{
	log_debug("%s: %s", __func__, path);
	cdata->files = xreallocarray(cdata->files, cdata->nfiles + 1,
	    sizeof *cdata->files);
	cdata->files[cdata->nfiles++] = xstrdup(path);
}

static enum cmd_retval
cmd_source_file_exec(struct cmd *self, struct cmdq_item *item)
{
	struct args			*args = self->args;
	struct cmd_source_file_data	*cdata;
	int				 flags = 0;
	struct client			*c = item->client;
	enum cmd_retval			 retval = CMD_RETURN_NORMAL;
	char				*pattern, *cwd;
	const char			*path, *error;
	glob_t				 g;
	int				 i, result;
	u_int				 j;

	cdata = xcalloc(1, sizeof *cdata);
	cdata->item = item;

	if (args_has(args, 'q'))
		cdata->flags |= CMD_PARSE_QUIET;
	if (args_has(args, 'n'))
		cdata->flags |= CMD_PARSE_PARSEONLY;
	if (args_has(args, 'v'))
		cdata->flags |= CMD_PARSE_VERBOSE;

	utf8_stravis(&cwd, server_client_get_cwd(c, NULL), VIS_GLOB);

	for (i = 0; i < args->argc; i++) {
		path = args->argv[i];
		if (strcmp(path, "-") == 0) {
			cmd_source_file_add(cdata, "-");
			continue;
		}

		if (*path == '/')
			pattern = xstrdup(path);
		else
			xasprintf(&pattern, "%s/%s", cwd, path);
		log_debug("%s: %s", __func__, pattern);

		if ((result = glob(pattern, 0, NULL, &g)) != 0) {
			if (result != GLOB_NOMATCH ||
			    (~flags & CMD_PARSE_QUIET)) {
				if (result == GLOB_NOMATCH)
					error = strerror(ENOENT);
				else if (result == GLOB_NOSPACE)
					error = strerror(ENOMEM);
				else
					error = strerror(EINVAL);
				cmdq_error(item, "%s: %s", path, error);
				retval = CMD_RETURN_ERROR;
			}
			free(pattern);
			continue;
		}
		free(pattern);

		for (j = 0; j < g.gl_pathc; j++)
			cmd_source_file_add(cdata, g.gl_pathv[j]);
	}

	cdata->after = item;
	cdata->retval = retval;

	if (cdata->nfiles != 0) {
		file_read(c, cdata->files[0], cmd_source_file_done, cdata);
		retval = CMD_RETURN_WAIT;
	} else
		cmd_source_file_complete(c, cdata);

	free(cwd);
	return (retval);
}