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/* $OpenBSD: rcsmerge.c,v 1.5 2005/10/23 11:42:43 niallo Exp $ */
/*
* Copyright (c) 2005 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/param.h>
#include <sys/stat.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include "log.h"
#include "rcs.h"
#include "diff.h"
#include "rcsprog.h"
extern diff3_conflicts;
static int kflag = RCS_KWEXP_ERR;
int
rcsmerge_main(int argc, char **argv)
{
int i, ch;
char *fcont, fpath[MAXPATHLEN];
RCSFILE *file;
RCSNUM *baserev, *rev2, *frev;
BUF *bp;
baserev = rev2 = RCS_HEAD_REV;
while ((ch = rcs_getopt(argc, argv, "k:p::qr:TV")) != -1) {
switch (ch) {
case 'k':
kflag = rcs_kflag_get(rcs_optarg);
if (RCS_KWEXP_INVAL(kflag)) {
cvs_log(LP_ERR,
"invalid RCS keyword expansion mode");
(usage)();
exit(1);
}
break;
case 'p':
rcs_set_rev(rcs_optarg, &baserev);
pipeout = 1;
break;
case 'q':
verbose = 0;
break;
case 'r':
if (baserev == RCS_HEAD_REV)
rcs_set_rev(rcs_optarg, &baserev);
else if (rev2 == RCS_HEAD_REV)
rcs_set_rev(rcs_optarg, &rev2);
else
cvs_log(LP_WARN, "ignored excessive -r option");
break;
case 'T':
/*
* kept for compatibility
*/
break;
case 'V':
printf("%s\n", rcs_version);
exit(0);
default:
break;
}
}
argc -= rcs_optind;
argv += rcs_optind;
if (argc < 0) {
cvs_log(LP_ERR, "no input file");
(usage)();
exit(1);
}
if (baserev == RCS_HEAD_REV) {
cvs_log(LP_ERR, "no base revision number given");
(usage)();
exit(1);
}
for (i = 0; i < argc; i++) {
if (rcs_statfile(argv[i], fpath, sizeof(fpath)) < 0)
continue;
if ((file = rcs_open(fpath, RCS_READ)) == NULL)
continue;
if (rev2 == RCS_HEAD_REV)
frev = file->rf_head;
else
frev = rev2;
if ((bp = cvs_diff3(file, argv[i], baserev, frev)) == NULL) {
cvs_log(LP_ERR, "failed to merge");
rcs_close(file);
continue;
}
if (pipeout == 1) {
if (cvs_buf_putc(bp, '\0') < 0) {
rcs_close(file);
continue;
}
fcont = cvs_buf_release(bp);
printf("%s", fcont);
free(fcont);
} else {
/* XXX mode */
if (cvs_buf_write(bp, argv[i], 0644) < 0)
cvs_log(LP_ERR, "failed to write new file");
cvs_buf_free(bp);
}
if (diff3_conflicts > 0) {
cvs_log(LP_WARN, "%d conflict%s found during merge",
diff3_conflicts, (diff3_conflicts > 1) ? "s": "");
}
rcs_close(file);
}
return (0);
}
void
rcsmerge_usage(void)
{
fprintf(stderr,
"usage: rcsmerge [-qTV] [-kmode] [-rrev] file ...\n");
}
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