File: [local] / src / usr.bin / cvs / update.c (download)
Revision 1.45, Sat Dec 3 01:02:09 2005 UTC (18 years, 6 months ago) by joris
Branch: MAIN
Changes since 1.44: +117 -11 lines
add very basic support for the following stuff:
- checkout in local mode (example: /cvs)
- update in local and server mode (example: /cvs and user@host:/cvs)
- import in local and server mode (example: /cvs and user@host:/cvs)
what remains to be done:
- not all options are supported yet, and update cannot pick up newly
added files yet. these things are pending and will be commited
real soon.
- checkout only works locally right now.
- fix rcs parsing code so that we don't fucking hog 100% cpu
on really BIG BIG BIG ass trees.
mainly tested by pedro@ and myself, thanks a lot pedro!
"go for it" niallo@
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/* $OpenBSD: update.c,v 1.45 2005/12/03 01:02:09 joris Exp $ */
/*
* Copyright (c) 2004 Jean-Francois Brousseau <jfb@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/stat.h>
#include <errno.h>
#include <fcntl.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include "cvs.h"
#include "log.h"
#include "proto.h"
#include "diff.h"
static int cvs_update_init(struct cvs_cmd *, int, char **, int *);
static int cvs_update_pre_exec(struct cvsroot *);
static int cvs_update_remote(CVSFILE *, void *);
static int cvs_update_local(CVSFILE *, void *);
struct cvs_cmd cvs_cmd_update = {
CVS_OP_UPDATE, CVS_REQ_UPDATE, "update",
{ "up", "upd" },
"Bring work tree in sync with repository",
"[-ACdflPpR] [-D date | -r rev] [-I ign] [-j rev] [-k mode] "
"[-t id] ...",
"ACD:dfI:j:k:lPpQqRr:t:",
NULL,
CF_SORT | CF_RECURSE | CF_IGNORE | CF_NOSYMS,
cvs_update_init,
cvs_update_pre_exec,
cvs_update_remote,
cvs_update_local,
NULL,
NULL,
CVS_CMD_ALLOWSPEC | CVS_CMD_SENDARGS2 | CVS_CMD_SENDDIR
};
static char *date, *rev, *koptstr;
static int dflag, Aflag;
static int kflag = RCS_KWEXP_DEFAULT;
static int
cvs_update_init(struct cvs_cmd *cmd, int argc, char **argv, int *arg)
{
int ch;
dflag = Aflag = 0;
date = NULL;
rev = NULL;
while ((ch = getopt(argc, argv, cmd->cmd_opts)) != -1) {
switch (ch) {
case 'A':
Aflag = 1;
break;
case 'C':
case 'D':
date = optarg;
break;
case 'd':
dflag = 1;
break;
case 'f':
break;
case 'I':
break;
case 'j':
break;
case 'k':
koptstr = optarg;
kflag = rcs_kflag_get(koptstr);
if (RCS_KWEXP_INVAL(kflag)) {
cvs_log(LP_ERR,
"invalid RCS keyword expansion mode");
rcs_kflag_usage();
return (CVS_EX_USAGE);
}
break;
case 'l':
cmd->file_flags &= ~CF_RECURSE;
break;
case 'P':
cmd->cmd_flags |= CVS_CMD_PRUNEDIRS;
break;
case 'p':
cvs_noexec = 1; /* no locks will be created */
break;
case 'Q':
case 'q':
break;
case 'R':
cmd->file_flags |= CF_RECURSE;
break;
case 'r':
rev = optarg;
break;
default:
return (CVS_EX_USAGE);
}
}
*arg = optind;
return (0);
}
static int
cvs_update_pre_exec(struct cvsroot *root)
{
if (root->cr_method != CVS_METHOD_LOCAL) {
if ((cvs_cmd_update.cmd_flags & CVS_CMD_PRUNEDIRS) &&
(cvs_sendarg(root, "-P", 0) < 0))
return (CVS_EX_PROTO);
if (Aflag && cvs_sendarg(root, "-A", 0) < 0)
return (CVS_EX_PROTO);
if (dflag && cvs_sendarg(root, "-d", 0) < 0)
return (CVS_EX_PROTO);
if ((rev != NULL) && ((cvs_sendarg(root, "-r", 0) < 0) ||
(cvs_sendarg(root, rev, 0) < 0)))
return (CVS_EX_PROTO);
if ((date != NULL) && ((cvs_sendarg(root, "-D", 0) < 0) ||
(cvs_sendarg(root, date, 0) < 0)))
return (CVS_EX_PROTO);
}
return (0);
}
/*
* cvs_update_remote()
*
* Update a single file. In the case where we act as client, send any
* pertinent information about that file to the server.
*/
static int
cvs_update_remote(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 (cf->cf_cvstat == CVS_FST_UNKNOWN)
ret = cvs_sendreq(root, CVS_REQ_QUESTIONABLE,
cf->cf_name);
else
ret = cvs_senddir(root, cf);
if (ret == -1)
ret = CVS_EX_PROTO;
return (ret);
}
cvs_file_getpath(cf, fpath, sizeof(fpath));
if (cvs_sendentry(root, cf) < 0)
return (CVS_EX_PROTO);
if (!(cf->cf_flags & CVS_FILE_ONDISK))
return (0);
switch (cf->cf_cvstat) {
case CVS_FST_UNKNOWN:
ret = cvs_sendreq(root, CVS_REQ_QUESTIONABLE, cf->cf_name);
break;
case CVS_FST_UPTODATE:
ret = cvs_sendreq(root, CVS_REQ_UNCHANGED, cf->cf_name);
break;
case CVS_FST_ADDED:
case CVS_FST_MODIFIED:
ret = cvs_sendreq(root, CVS_REQ_MODIFIED, cf->cf_name);
if (ret == 0)
ret = cvs_sendfile(root, fpath);
break;
default:
break;
}
if (ret == -1)
ret = CVS_EX_PROTO;
return (ret);
}
/*
* cvs_update_local()
*/
static int
cvs_update_local(CVSFILE *cf, void *arg)
{
int ret, islocal, revdiff;
char fpath[MAXPATHLEN], rcspath[MAXPATHLEN];
char *repo;
RCSFILE *rf;
RCSNUM *frev;
BUF *fbuf;
struct cvsroot *root;
revdiff = ret = 0;
rf = NULL;
islocal = (cvs_cmdop != CVS_OP_SERVER);
root = CVS_DIR_ROOT(cf);
repo = CVS_DIR_REPO(cf);
cvs_file_getpath(cf, fpath, sizeof(fpath));
if (cf->cf_cvstat == CVS_FST_UNKNOWN) {
cvs_printf("? %s\n", fpath);
return (CVS_EX_OK);
}
if (cf->cf_type == DT_DIR) {
if (verbosity > 1)
cvs_log(LP_NOTICE, "Updating %s", fpath);
return (CVS_EX_OK);
}
if (cvs_rcs_getpath(cf, rcspath, sizeof(rcspath)) == NULL)
return (CVS_EX_DATA);
/*
* Only open the RCS file for files that have not been added.
*/
if (cf->cf_cvstat != CVS_FST_ADDED) {
rf = rcs_open(rcspath, RCS_READ);
/*
* If there is no RCS file available in the repository
* directory that matches this file, it's gone.
* XXX: so what about the Attic?
*/
if (rf == NULL) {
cvs_log(LP_WARN, "%s is no longer in the repository",
fpath);
if (cvs_checkout_rev(NULL, NULL, cf, fpath,
islocal, CHECKOUT_REV_REMOVED) < 0)
return (CVS_EX_FILE);
return (CVS_EX_OK);
}
}
/* set keyword expansion */
/* XXX look at cf->cf_opts as well for this */
if (rcs_kwexp_set(rf, kflag) < 0) {
if (rf != NULL)
rcs_close(rf);
return (CVS_EX_DATA);
}
/* fill in the correct revision */
if (rev != NULL) {
if ((frev = rcsnum_parse(rev)) == NULL) {
if (rf != NULL)
rcs_close(rf);
return (CVS_EX_DATA);
}
} else {
frev = rf->rf_head;
}
/*
* Compare the headrevision with the revision we currently have.
*/
if (rf != NULL && cf->cf_lrev != NULL)
revdiff = rcsnum_cmp(cf->cf_lrev, frev, 0);
switch (cf->cf_cvstat) {
case CVS_FST_MODIFIED:
/*
* If the file has been modified but there is a newer version
* available, we try to merge it into the existing changes.
*/
if (revdiff == 1) {
fbuf = cvs_diff3(rf, fpath, cf->cf_lrev, frev);
if (fbuf == NULL) {
cvs_log(LP_ERR, "merge failed");
break;
}
/*
* Please note fbuf will be free'd in cvs_checkout_rev
*/
if (cvs_checkout_rev(rf, frev, cf, fpath, islocal,
CHECKOUT_REV_MERGED, fbuf) != -1) {
cvs_printf("%c %s\n",
(diff3_conflicts > 0) ? 'C' : 'M',
fpath);
if (diff3_conflicts > 0)
cf->cf_cvstat = CVS_FST_CONFLICT;
}
} else {
cvs_printf("M %s\n", fpath);
}
break;
case CVS_FST_ADDED:
cvs_printf("A %s\n", fpath);
break;
case CVS_FST_REMOVED:
cvs_printf("R %s\n", fpath);
break;
case CVS_FST_CONFLICT:
cvs_printf("C %s\n", fpath);
break;
case CVS_FST_LOST:
if (cvs_checkout_rev(rf, frev, cf, fpath, islocal,
CHECKOUT_REV_CREATED) != -1) {
cf->cf_cvstat = CVS_FST_UPTODATE;
cvs_printf("U %s\n", fpath);
}
break;
case CVS_FST_UPTODATE:
if (revdiff == 1) {
if (cvs_checkout_rev(rf, frev, cf, fpath, islocal,
CHECKOUT_REV_CREATED) != -1)
cvs_printf("P %s\n", fpath);
}
break;
default:
break;
}
if ((frev != NULL) && (frev != rf->rf_head))
rcsnum_free(frev);
if (rf != NULL)
rcs_close(rf);
return (CVS_EX_OK);
}