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Modify the CVSFILE structure using a union to keep information about
both files and directories.  We can now keep the revision number for
regular files, and don't need to fetch the appropriate entry in the
command callbacks.  This saves a huge amount of parsing on Entries
files.

ok joris@

/*	$OpenBSD: remove.c,v 1.8 2005/04/18 21:02:50 jfb Exp $	*/
/*
 * Copyright (c) 2004 Jean-Francois Brousseau <jfb@openbsd.org>
 * Copyright (c) 2004 Xavier Santolaria <xsa@openbsd.org>
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. The name of the author may not be used to endorse or promote products
 *    derived from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
 * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
 * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
 * THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
 * EXEMPLARY, OR CONSEQUENTIAL  DAMAGES (INCLUDING, BUT NOT LIMITED TO,
 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

#include <sys/types.h>

#include <errno.h>
#include <fcntl.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <libgen.h>
#include <unistd.h>

#include "cvs.h"
#include "log.h"
#include "proto.h"


extern char *__progname;


int cvs_remove_file(CVSFILE *, void *);
int cvs_remove_options(char *, int, char **, int *);

static int	force_remove = 0;	/* -f option */

struct cvs_cmd_info cvs_remove = {
	cvs_remove_options,
	NULL,
	cvs_remove_file,
	NULL, NULL,
	0,
	CVS_REQ_REMOVE,
	CVS_CMD_SENDDIR | CVS_CMD_SENDARGS2 | CVS_CMD_ALLOWSPEC
};

int
cvs_remove_options(char *opt, int argc, char **argv, int *arg)
{
	int ch;

	while ((ch = getopt(argc, argv, opt)) != -1) {
		switch (ch) {
		case 'f':
			force_remove = 1;
			break;
		case 'l':
			break;
		case 'R':
			break;
		default:
			return (CVS_EX_USAGE);
		}
	}

	argc -= optind;
	argv += optind;

	if (argc == 0)
		return (CVS_EX_USAGE);

	*arg = optind;
	return (0);
}


int
cvs_remove_file(CVSFILE *cf, void *arg)
{
	int ret;
	char fpath[MAXPATHLEN];
	struct cvsroot *root;

	ret = 0;
	root = CVS_DIR_ROOT(cf);

	if (cf->cf_type == DT_DIR) {
		if (root->cr_method != CVS_METHOD_LOCAL) {
			if (cf->cf_cvstat == CVS_FST_UNKNOWN)
				ret = cvs_sendreq(root, CVS_REQ_QUESTIONABLE,
				    CVS_FILE_NAME(cf));
			else
				ret = cvs_senddir(root, cf);
		}

		return (ret);
	}

	cvs_file_getpath(cf, fpath, sizeof(fpath));

	if (root->cr_method != CVS_METHOD_LOCAL) {
		ret = cvs_sendentry(root, cf);
	} else {
		/* if -f option is used, physically remove the file */
		if (force_remove == 1) {
			if((unlink(fpath) == -1) && (errno != ENOENT)) {
				cvs_log(LP_ERRNO, "failed to unlink `%s'",
				    fpath);
				return (CVS_EX_FILE);
			}
		}

		cvs_log(LP_INFO, "scheduling file `%s' for removal",
		    CVS_FILE_NAME(cf));
		cvs_log(LP_INFO,
		    "use `%s commit' to remove this file permanently",
		    __progname);
	}

	return (ret);
}