// -*- mode: cpp; mode: fold -*- // Description /*{{{*/ // $Id: clean.cc,v 1.2 1999/06/24 04:06:30 jgg Exp $ /* ###################################################################### Clean - Clean out downloaded directories ##################################################################### */ /*}}}*/ // Includes /*{{{*/ #ifdef __GNUG__ #pragma implementation "apt-pkg/clean.h" #endif #include <apt-pkg/clean.h> #include <apt-pkg/strutl.h> #include <apt-pkg/error.h> #include <dirent.h> #include <sys/stat.h> #include <unistd.h> /*}}}*/ // ArchiveCleaner::Go - Perform smart cleanup of the archive /*{{{*/ // --------------------------------------------------------------------- /* Scan the directory for files to erase, we check the version information against our database to see if it is interesting */ bool pkgArchiveCleaner::Go(string Dir,pkgCache &Cache) { DIR *D = opendir(Dir.c_str()); if (D == 0) return _error->Errno("opendir","Unable to read %s",Dir.c_str()); string StartDir = SafeGetCWD(); if (chdir(Dir.c_str()) != 0) { closedir(D); return _error->Errno("chdir","Unable to change to ",Dir.c_str()); } for (struct dirent *Dir = readdir(D); Dir != 0; Dir = readdir(D)) { // Skip some files.. if (strcmp(Dir->d_name,"lock") == 0 || strcmp(Dir->d_name,"partial") == 0 || strcmp(Dir->d_name,".") == 0 || strcmp(Dir->d_name,"..") == 0) continue; struct stat St; if (stat(Dir->d_name,&St) != 0) return _error->Errno("stat","Unable to stat %s.",Dir->d_name); // Grab the package name const char *I = Dir->d_name; for (; *I != 0 && *I != '_';I++); if (*I != '_') continue; string Pkg = DeQuoteString(string(Dir->d_name,I-Dir->d_name)); // Grab the version const char *Start = I + 1; for (I = Start; *I != 0 && *I != '_';I++); if (*I != '_') continue; string Ver = DeQuoteString(string(Start,I-Start)); // Grab the arch Start = I + 1; for (I = Start; *I != 0 && *I != '.' ;I++); if (*I != '.') continue; string Arch = DeQuoteString(string(Start,I-Start)); // Lookup the package pkgCache::PkgIterator P = Cache.FindPkg(Pkg); if (P.end() != true) { pkgCache::VerIterator V = P.VersionList(); for (; V.end() == false; V++) { // See if we can fetch this version at all bool IsFetchable = false; for (pkgCache::VerFileIterator J = V.FileList(); J.end() == false; J++) { if ((J.File()->Flags & pkgCache::Flag::NotSource) != 0) continue; IsFetchable = true; break; } // See if this verison matches the file if (IsFetchable == true && Ver == V.VerStr()) break; } // We found a match, keep the file if (V.end() == false) continue; } Erase(Dir->d_name,Pkg,Ver,St); }; chdir(StartDir.c_str()); closedir(D); return true; } /*}}}*/