--- /dev/null
+// $Id: vcopy.c,v 1.5 2005/03/24 12:44:17 ensc Exp $ --*- c -*--
+
+// Copyright (C) 2004 Enrico Scholz <enrico.scholz@informatik.tu-chemnitz.de>
+//
+// This program is free software; you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation; version 2 of the License.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program; if not, write to the Free Software
+// Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+
+
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+#endif
+
+#include "util.h"
+#include "vserver.h"
+
+#include "lib_internal/matchlist.h"
+#include "lib_internal/unify.h"
+
+#include <unistd.h>
+#include <getopt.h>
+#include <fcntl.h>
+#include <dirent.h>
+#include <errno.h>
+#include <assert.h>
+#include <utime.h>
+#include <libgen.h>
+#include <sys/param.h>
+
+#define ENSC_WRAPPERS_UNISTD 1
+#define ENSC_WRAPPERS_FCNTL 1
+#define ENSC_WRAPPERS_DIRENT 1
+#include <wrappers.h>
+
+#define CMD_HELP 0x8000
+#define CMD_VERSION 0x8001
+#define CMD_MANUALLY 0x8002
+#define CMD_STRICT 0x8003
+
+struct WalkdownInfo
+{
+ PathInfo state;
+ struct MatchList dst_list;
+ struct MatchList src_list;
+};
+
+struct Arguments {
+ enum {mdMANUALLY, mdVSERVER} mode;
+ bool do_dry_run;
+ unsigned int verbosity;
+ bool local_fs;
+ bool is_strict;
+};
+
+static struct WalkdownInfo global_info;
+static struct Arguments const * global_args;
+
+int wrapper_exit_code = 1;
+
+struct option const
+CMDLINE_OPTIONS[] = {
+ { "help", no_argument, 0, CMD_HELP },
+ { "version", no_argument, 0, CMD_VERSION },
+ { "manually", no_argument, 0, CMD_MANUALLY },
+ { "strict", no_argument, 0, CMD_STRICT },
+ { 0,0,0,0 }
+};
+
+typedef enum { opUNIFY, opCOPY, opDIR, opSKIP } Operation;
+
+static void
+showHelp(int fd, char const *cmd, int res)
+{
+ VSERVER_DECLARE_CMD(cmd);
+
+ WRITE_MSG(fd, "Usage:\n ");
+ WRITE_STR(fd, cmd);
+ WRITE_MSG(fd,
+ " [-nv] [--strict] <dst-vserver> <src-vserver>\n or\n ");
+ WRITE_STR(fd, cmd);
+ WRITE_MSG(fd,
+ " --manually [-nvx] [--] <dst-path> <dst-excludelist> <src-path> <src-excludelist>\n\n"
+ " --manually ... unify generic paths; excludelists must be generated\n"
+ " manually\n"
+ " --strict ... require an existing vserver configuration for dst-vserver;\n"
+ " by default, a base skeleton will be created but manual\n"
+ " configuration wil be still needed to make the new vserver work\n"
+ " -n ... do not modify anything; just show what there will be\n"
+ " done (in combination with '-v')\n"
+ " -v ... verbose mode\n"
+ " -x ... do not cross filesystems; this is valid in manual\n"
+ " mode only and will be ignored for vserver unification\n\n"
+ "Please report bugs to " PACKAGE_BUGREPORT "\n");
+ exit(res);
+}
+
+static void
+showVersion()
+{
+ WRITE_MSG(1,
+ "vcopy " VERSION " -- copies directories and vserver files\n"
+ "This program is part of " PACKAGE_STRING "\n\n"
+ "Copyright (C) 2003,2004 Enrico Scholz\n"
+ VERSION_COPYRIGHT_DISCLAIMER);
+ exit(0);
+}
+
+int Global_getVerbosity() {
+ return global_args->verbosity;
+}
+
+bool Global_doRenew() {
+ return true;
+}
+
+#include "vserver-visitdir.hc"
+
+static Operation
+checkDirEntry(PathInfo const *path, struct stat const *st)
+{
+ struct WalkdownInfo const * const info = &global_info;
+ MatchType res;
+
+ // when marked as 'skip' in the first excludelist already, we do not need to
+ // visit the second one since it could not change that.
+ res=MatchList_compare(&info->dst_list, path->d);
+ if (res!=stSKIP) {
+ MatchType tmp = MatchList_compare(&info->src_list, path->d);
+
+ // stINCLUDE gets overridden by stEXCLUDE+stSKIP, and stEXCLUDE by stSKIP.
+ // Using the MAX() macro is a hack but it works
+ res=MAX(res,tmp);
+ }
+
+ // non-skipped directories are marked as opDIR
+ if (res!=stSKIP && S_ISDIR(st->st_mode))
+ return opDIR;
+
+ // non-skipped symlinks will be copied always
+ if (res!=stSKIP && S_ISLNK(st->st_mode))
+ return opCOPY;
+
+ // skipped files or non regular files (character/block devices) will be skipped
+ // always
+ if (res==stSKIP || !S_ISREG(st->st_mode))
+ return opSKIP;
+
+ switch (res) {
+ case stINCLUDE : return opUNIFY;
+ case stEXCLUDE : return opCOPY;
+ case stSKIP : assert(false); // already handled above
+ default : assert(false); abort();
+ }
+}
+
+static bool
+doit(Operation op,
+ PathInfo const *dst_path,
+ PathInfo const *src_path, struct stat const *exp_stat,
+ PathInfo const *show_path)
+{
+#if 0
+ struct stat st;
+
+ if (lstat(dst_path->d, &st)!=-1) {
+ if (global_args->do_keep &&
+ (!S_ISDIR(exp_stat->st_mode) || S_ISDIR(st.st_mode))) {
+ // when keep-mode is enable and, do nothing
+ if (global_args->do_dry_run || global_args->verbosity>1) {
+ WRITE_MSG(1, "keeping '");
+ write(1, show_path->d, show_path->l);
+ WRITE_MSG(1, "'\n");
+ }
+ return true;
+ }
+
+ }
+#endif
+
+ if (global_args->do_dry_run || global_args->verbosity>1) {
+ if (op==opUNIFY) WRITE_MSG(1, "linking '");
+ else if (op==opCOPY) WRITE_MSG(1, "copying '");
+ else if (op==opDIR) WRITE_MSG(1, "creating '");
+ else if (op==opSKIP) WRITE_MSG(1, "skipping '");
+ else { assert(false); abort(); }
+
+ Vwrite(1, show_path->d, show_path->l);
+ WRITE_MSG(1, "'\n");
+ }
+
+ return (global_args->do_dry_run ||
+ ( op==opSKIP) ||
+ ( op==opUNIFY && Unify_unify(src_path->d, exp_stat, dst_path->d, false)) ||
+ ((op==opCOPY ||
+ op==opDIR) && Unify_copy (src_path->d, exp_stat, dst_path->d)));
+}
+
+static uint64_t
+visitDirEntry(struct dirent const *ent)
+{
+ char const * dirname = ent->d_name;
+ if (isDotfile(dirname)) return 0;
+
+ uint64_t res = 1;
+ PathInfo src_path = global_info.state;
+ PathInfo src_d_path = {
+ .d = dirname,
+ .l = strlen(dirname)
+ };
+ char path_buf[ENSC_PI_APPSZ(src_path, src_d_path)];
+ struct stat f_stat = { .st_dev = 0 };
+
+ PathInfo_append(&src_path, &src_d_path, path_buf);
+
+
+ if (lstat(dirname, &f_stat)==-1)
+ perror("lstat()");
+ else {
+ Operation op = checkDirEntry(&src_path, &f_stat);
+ PathInfo dst_path = global_info.dst_list.root;
+ char dst_path_buf[ENSC_PI_APPSZ(dst_path, src_path)];
+
+ PathInfo_append(&dst_path, &src_path, dst_path_buf);
+ if (!doit(op, &dst_path, &src_d_path, &f_stat, &src_path))
+ perror(src_path.d);
+ else if (op==opDIR) {
+ res = visitDir(dirname, &f_stat);
+ if (!global_args->do_dry_run &&
+ !Unify_setTime(dst_path.d, &f_stat))
+ perror("utime()");
+ }
+ else
+ res = 0;
+ }
+
+ return res;
+}
+
+#include "vcopy-init.hc"
+
+int main(int argc, char *argv[])
+{
+ struct Arguments args = {
+ .mode = mdVSERVER,
+ .do_dry_run = false,
+ .verbosity = 0,
+ .local_fs = false,
+ };
+ uint64_t res;
+
+ global_args = &args;
+ while (1) {
+ int c = getopt_long(argc, argv, "nvcx",
+ CMDLINE_OPTIONS, 0);
+ if (c==-1) break;
+
+ switch (c) {
+ case CMD_HELP : showHelp(1, argv[0], 0);
+ case CMD_VERSION : showVersion();
+ case CMD_MANUALLY : args.mode = mdMANUALLY; break;
+ case CMD_STRICT : args.is_strict = true; break;
+ case 'n' : args.do_dry_run = true; break;
+ case 'x' : args.local_fs = true; break;
+ case 'v' : ++args.verbosity; break;
+ default :
+ WRITE_MSG(2, "Try '");
+ WRITE_STR(2, argv[0]);
+ WRITE_MSG(2, " --help\" for more information.\n");
+ return EXIT_FAILURE;
+ break;
+ }
+ }
+
+ if (argc==optind) {
+ WRITE_MSG(2, "No directory/vserver given\n");
+ return EXIT_FAILURE;
+ }
+
+ switch (args.mode) {
+ case mdMANUALLY : initModeManually(argc-optind, argv+optind); break;
+ case mdVSERVER : initModeVserver (argc-optind, argv+optind); break;
+ default : assert(false); return EXIT_FAILURE;
+ }
+
+ if (global_args->verbosity>3)
+ WRITE_MSG(1, "Starting to traverse directories...\n");
+
+ Echdir(global_info.src_list.root.d);
+ res = visitDir("/", 0);
+
+#ifndef NDEBUG
+ {
+ MatchList_destroy(&global_info.dst_list);
+ MatchList_destroy(&global_info.src_list);
+ }
+#endif
+
+ return res>0 ? 1 : 0;
+}
git://git.onelab.eu / util-vserver.git / blobdiff