This commit was generated by cvs2svn to compensate for changes in r120,

[util-vserver.git] / src / vfiles.cc

diff --git a/src/vfiles.cc b/src/vfiles.cc
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+++ b/src/vfiles.cc
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+// $Id: vfiles.cc,v 1.1 2003/09/29 22:01:57 ensc Exp $
+
+// Copyright (C) 2003 Enrico Scholz <enrico.scholz@informatik.tu-chemnitz.de>
+// based on vfiles.cc by Jacques Gelinas
+//  
+// 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; either version 2, or (at your option)
+// any later version.
+//  
+// 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.
+
+/*
+       This utility is used to extract the list of non unified files in
+       a vserver.
+*/
+#include <stdio.h>
+#include <fcntl.h>
+#include <sys/ioctl.h>
+#include <sys/stat.h>
+#include <unistd.h>
+#include <errno.h>
+#include <dirent.h>
+
+#include <string>
+#include <list>
+#include <set>
+#include "vutil.h"
+
+using namespace std;
+
+static bool ignorelink = false;
+
+
+static void usage()
+{
+       cerr <<
+               "vfiles version " << VERSION <<
+               "\n\n"
+               "vfiles [ options ] reference-server vserver\n"
+               "\n"
+               "--debug: Prints some debugging messages.\n"
+               "--ignorelink: Do not print symbolic links (they are never unified)\n"
+               "\n"
+               ;
+}
+
+
+static int vfiles_walk (
+       string absdir,
+       dev_t dev,                      // We stay on the same volume
+       string logical_dir,
+       set<string> &files)
+{
+       int ret = -1;
+       if (debug > 0) printf ("Entering directory %s\n",logical_dir.c_str());
+       DIR *dir = opendir (absdir.c_str());
+       if (dir == NULL){
+               fprintf (stderr,"Can't open directory %s (%s)\n",absdir.c_str()
+                       ,strerror(errno));
+       }else{
+               struct dirent *ent;
+               ret = 0;
+               while (ret == 0 && (ent=readdir(dir))!=NULL){
+                       if (strcmp(ent->d_name,".")==0 || strcmp(ent->d_name,"..")==0){
+                               continue;
+                       }
+                       string file = absdir + "/" + ent->d_name;
+                       struct stat st;
+                       if (vutil_lstat(file,st) == -1){
+                               ret = -1;
+                       }else if (st.st_dev != dev){
+                               if (debug > 0) printf ("Ignore sub-directory %s\n",file.c_str());
+                       }else{
+                               if (S_ISDIR(st.st_mode)){
+                                       ret |= vfiles_walk (file,dev
+                                                       ,logical_dir + "/" + ent->d_name,files);
+                               }else if (S_ISLNK(st.st_mode)){
+                                       if (!ignorelink) printf ("%s\n",file.c_str());  
+                               }else if (S_ISBLK(st.st_mode)
+                                       || S_ISCHR(st.st_mode)
+                                       || S_ISFIFO(st.st_mode)){
+                                       printf ("%s\n",file.c_str());   
+                               }else if (S_ISSOCK(st.st_mode)){
+                                       // Do nothing
+                               }else{
+                                       // Ok, this is a file. We either copy it or do a link
+                                       string logical_file = logical_dir + "/" + ent->d_name;
+                                       if (files.find (logical_file)==files.end()){
+                                               printf ("%s\n",file.c_str());   
+                                       }
+                               }
+                       }
+               }
+               closedir(dir);
+       }
+       return ret;
+}
+
+int main (int argc, char *argv[])
+{
+       int ret = -1;
+       int i;
+       for (i=1; i<argc; i++){
+               const char *arg = argv[i];
+               //const char *opt = argv[i+1];
+               if (strcmp(arg,"--debug")==0){
+                       debug++;
+               }else if (strcmp(arg,"--ignorelink")==0){
+                       ignorelink=true;
+               }else{
+                       break;
+               }
+       }
+       if (i!=argc-2){
+               usage();
+       }else{
+               string refserv = argv[i++];
+               string newserv = argv[i];
+               list<PACKAGE> packages;
+               // Load the files which are not configuration files from
+               // the packages
+               vutil_loadallpkg (refserv,packages);
+               set<string> files;
+               for (list<PACKAGE>::iterator it=packages.begin(); it!=packages.end(); it++){
+                       (*it).loadfiles(refserv,files);
+               }
+               struct stat st;
+               if (vutil_lstat(newserv,st)!=-1){
+                       // Now, we do a recursive walk of newserv and prints
+                       // all files not unifiable
+                       ret = vfiles_walk (newserv,st.st_dev,"",files);
+               }
+       }
+       return ret;
+}
+
+
+