3 // Copyright (C) 2004 Enrico Scholz <enrico.scholz@informatik.tu-chemnitz.de>
5 // This program is free software; you can redistribute it and/or modify
6 // it under the terms of the GNU General Public License as published by
7 // the Free Software Foundation; version 2 of the License.
9 // This program is distributed in the hope that it will be useful,
10 // but WITHOUT ANY WARRANTY; without even the implied warranty of
11 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 // GNU General Public License for more details.
14 // You should have received a copy of the GNU General Public License
15 // along with this program; if not, write to the Free Software
16 // Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
26 #include "lib_internal/matchlist.h"
27 #include "lib_internal/unify.h"
37 #include <sys/param.h>
39 #define ENSC_WRAPPERS_UNISTD 1
40 #define ENSC_WRAPPERS_FCNTL 1
41 #define ENSC_WRAPPERS_DIRENT 1
44 #define CMD_HELP 0x8000
45 #define CMD_VERSION 0x8001
46 #define CMD_MANUALLY 0x8002
47 #define CMD_STRICT 0x8003
52 struct MatchList dst_list;
53 struct MatchList src_list;
57 enum {mdMANUALLY, mdVSERVER} mode;
59 unsigned int verbosity;
64 static struct WalkdownInfo global_info;
65 static struct Arguments const * global_args;
67 int wrapper_exit_code = 1;
71 { "help", no_argument, 0, CMD_HELP },
72 { "version", no_argument, 0, CMD_VERSION },
73 { "manually", no_argument, 0, CMD_MANUALLY },
74 { "strict", no_argument, 0, CMD_STRICT },
78 typedef enum { opUNIFY, opCOPY, opDIR, opSKIP } Operation;
81 showHelp(int fd, char const *cmd, int res)
83 VSERVER_DECLARE_CMD(cmd);
85 WRITE_MSG(fd, "Usage:\n ");
88 " [-nv] [--strict] <dst-vserver> <src-vserver>\n or\n ");
91 " --manually [-nvx] [--] <dst-path> <dst-excludelist> <src-path> <src-excludelist>\n\n"
92 " --manually ... unify generic paths; excludelists must be generated\n"
94 " --strict ... require an existing vserver configuration for dst-vserver;\n"
95 " by default, a base skeleton will be created but manual\n"
96 " configuration wil be still needed to make the new vserver work\n"
97 " -n ... do not modify anything; just show what there will be\n"
98 " done (in combination with '-v')\n"
99 " -v ... verbose mode\n"
100 " -x ... do not cross filesystems; this is valid in manual\n"
101 " mode only and will be ignored for vserver unification\n\n"
102 "Please report bugs to " PACKAGE_BUGREPORT "\n");
110 "vcopy " VERSION " -- copies directories and vserver files\n"
111 "This program is part of " PACKAGE_STRING "\n\n"
112 "Copyright (C) 2003,2004 Enrico Scholz\n"
113 VERSION_COPYRIGHT_DISCLAIMER);
117 int Global_getVerbosity() {
118 return global_args->verbosity;
121 bool Global_doRenew() {
125 #include "vserver-visitdir.hc"
128 checkDirEntry(PathInfo const *path, struct stat const *st)
130 struct WalkdownInfo const * const info = &global_info;
133 // when marked as 'skip' in the first excludelist already, we do not need to
134 // visit the second one since it could not change that.
135 res=MatchList_compare(&info->dst_list, path->d);
137 MatchType tmp = MatchList_compare(&info->src_list, path->d);
139 // stINCLUDE gets overridden by stEXCLUDE+stSKIP, and stEXCLUDE by stSKIP.
140 // Using the MAX() macro is a hack but it works
144 // non-skipped directories are marked as opDIR
145 if (res!=stSKIP && S_ISDIR(st->st_mode))
148 // non-skipped symlinks will be copied always
149 if (res!=stSKIP && S_ISLNK(st->st_mode))
152 // skipped files or non regular files (character/block devices) will be skipped
154 if (res==stSKIP || !S_ISREG(st->st_mode))
158 case stINCLUDE : return opUNIFY;
159 case stEXCLUDE : return opCOPY;
160 case stSKIP : assert(false); // already handled above
161 default : assert(false); abort();
167 PathInfo const *dst_path,
168 PathInfo const *src_path, struct stat const *exp_stat,
169 PathInfo const *show_path)
174 if (lstat(dst_path->d, &st)!=-1) {
175 if (global_args->do_keep &&
176 (!S_ISDIR(exp_stat->st_mode) || S_ISDIR(st.st_mode))) {
177 // when keep-mode is enable and, do nothing
178 if (global_args->do_dry_run || global_args->verbosity>1) {
179 WRITE_MSG(1, "keeping '");
180 write(1, show_path->d, show_path->l);
189 if (global_args->do_dry_run || global_args->verbosity>1) {
190 if (op==opUNIFY) WRITE_MSG(1, "linking '");
191 else if (op==opCOPY) WRITE_MSG(1, "copying '");
192 else if (op==opDIR) WRITE_MSG(1, "creating '");
193 else if (op==opSKIP) WRITE_MSG(1, "skipping '");
194 else { assert(false); abort(); }
196 Vwrite(1, show_path->d, show_path->l);
200 return (global_args->do_dry_run ||
202 ( op==opUNIFY && Unify_unify(src_path->d, exp_stat, dst_path->d, false)) ||
204 op==opDIR) && Unify_copy (src_path->d, exp_stat, dst_path->d)));
208 visitDirEntry(struct dirent const *ent)
210 char const * dirname = ent->d_name;
211 if (isDotfile(dirname)) return 0;
214 PathInfo src_path = global_info.state;
215 PathInfo src_d_path = {
219 char path_buf[ENSC_PI_APPSZ(src_path, src_d_path)];
220 struct stat f_stat = { .st_dev = 0 };
222 PathInfo_append(&src_path, &src_d_path, path_buf);
225 if (lstat(dirname, &f_stat)==-1)
228 Operation op = checkDirEntry(&src_path, &f_stat);
229 PathInfo dst_path = global_info.dst_list.root;
230 char dst_path_buf[ENSC_PI_APPSZ(dst_path, src_path)];
232 PathInfo_append(&dst_path, &src_path, dst_path_buf);
233 if (!doit(op, &dst_path, &src_d_path, &f_stat, &src_path))
235 else if (op==opDIR) {
236 res = visitDir(dirname, &f_stat);
237 if (!global_args->do_dry_run &&
238 !Unify_setTime(dst_path.d, &f_stat))
248 #include "vcopy-init.hc"
250 int main(int argc, char *argv[])
252 struct Arguments args = {
262 int c = getopt_long(argc, argv, "nvcx",
267 case CMD_HELP : showHelp(1, argv[0], 0);
268 case CMD_VERSION : showVersion();
269 case CMD_MANUALLY : args.mode = mdMANUALLY; break;
270 case CMD_STRICT : args.is_strict = true; break;
271 case 'n' : args.do_dry_run = true; break;
272 case 'x' : args.local_fs = true; break;
273 case 'v' : ++args.verbosity; break;
275 WRITE_MSG(2, "Try '");
276 WRITE_STR(2, argv[0]);
277 WRITE_MSG(2, " --help' for more information.\n");
284 WRITE_MSG(2, "No directory/vserver given\n");
289 case mdMANUALLY : initModeManually(argc-optind, argv+optind); break;
290 case mdVSERVER : initModeVserver (argc-optind, argv+optind); break;
291 default : assert(false); return EXIT_FAILURE;
294 if (global_args->verbosity>3)
295 WRITE_MSG(1, "Starting to traverse directories...\n");
297 Echdir(global_info.src_list.root.d);
298 res = visitDir("/", 0);
302 MatchList_destroy(&global_info.dst_list);
303 MatchList_destroy(&global_info.src_list);
307 return res>0 ? 1 : 0;