| 1 | // -*- mode: cpp; mode: fold -*- |
| 2 | // Description /*{{{*/ |
| 3 | // $Id: clean.cc,v 1.4 2001/02/20 07:03:17 jgg Exp $ |
| 4 | /* ###################################################################### |
| 5 | |
| 6 | Clean - Clean out downloaded directories |
| 7 | |
| 8 | ##################################################################### */ |
| 9 | /*}}}*/ |
| 10 | // Includes /*{{{*/ |
| 11 | #include <apt-pkg/clean.h> |
| 12 | #include <apt-pkg/strutl.h> |
| 13 | #include <apt-pkg/error.h> |
| 14 | #include <apt-pkg/configuration.h> |
| 15 | #include <apt-pkg/aptconfiguration.h> |
| 16 | |
| 17 | #include <apti18n.h> |
| 18 | |
| 19 | #include <dirent.h> |
| 20 | #include <sys/stat.h> |
| 21 | #include <unistd.h> |
| 22 | /*}}}*/ |
| 23 | // ArchiveCleaner::Go - Perform smart cleanup of the archive /*{{{*/ |
| 24 | // --------------------------------------------------------------------- |
| 25 | /* Scan the directory for files to erase, we check the version information |
| 26 | against our database to see if it is interesting */ |
| 27 | bool pkgArchiveCleaner::Go(string Dir,pkgCache &Cache) |
| 28 | { |
| 29 | bool CleanInstalled = _config->FindB("APT::Clean-Installed",true); |
| 30 | |
| 31 | DIR *D = opendir(Dir.c_str()); |
| 32 | if (D == 0) |
| 33 | return _error->Errno("opendir",_("Unable to read %s"),Dir.c_str()); |
| 34 | |
| 35 | string StartDir = SafeGetCWD(); |
| 36 | if (chdir(Dir.c_str()) != 0) |
| 37 | { |
| 38 | closedir(D); |
| 39 | return _error->Errno("chdir",_("Unable to change to %s"),Dir.c_str()); |
| 40 | } |
| 41 | |
| 42 | for (struct dirent *Dir = readdir(D); Dir != 0; Dir = readdir(D)) |
| 43 | { |
| 44 | // Skip some files.. |
| 45 | if (strcmp(Dir->d_name,"lock") == 0 || |
| 46 | strcmp(Dir->d_name,"partial") == 0 || |
| 47 | strcmp(Dir->d_name,".") == 0 || |
| 48 | strcmp(Dir->d_name,"..") == 0) |
| 49 | continue; |
| 50 | |
| 51 | struct stat St; |
| 52 | if (stat(Dir->d_name,&St) != 0) |
| 53 | { |
| 54 | chdir(StartDir.c_str()); |
| 55 | closedir(D); |
| 56 | return _error->Errno("stat",_("Unable to stat %s."),Dir->d_name); |
| 57 | } |
| 58 | |
| 59 | // Grab the package name |
| 60 | const char *I = Dir->d_name; |
| 61 | for (; *I != 0 && *I != '_';I++); |
| 62 | if (*I != '_') |
| 63 | continue; |
| 64 | string Pkg = DeQuoteString(string(Dir->d_name,I-Dir->d_name)); |
| 65 | |
| 66 | // Grab the version |
| 67 | const char *Start = I + 1; |
| 68 | for (I = Start; *I != 0 && *I != '_';I++); |
| 69 | if (*I != '_') |
| 70 | continue; |
| 71 | string Ver = DeQuoteString(string(Start,I-Start)); |
| 72 | |
| 73 | // Grab the arch |
| 74 | Start = I + 1; |
| 75 | for (I = Start; *I != 0 && *I != '.' ;I++); |
| 76 | if (*I != '.') |
| 77 | continue; |
| 78 | string const Arch = DeQuoteString(string(Start,I-Start)); |
| 79 | |
| 80 | if (APT::Configuration::checkArchitecture(Arch) == false) |
| 81 | continue; |
| 82 | |
| 83 | // Lookup the package |
| 84 | pkgCache::PkgIterator P = Cache.FindPkg(Pkg); |
| 85 | if (P.end() != true) |
| 86 | { |
| 87 | pkgCache::VerIterator V = P.VersionList(); |
| 88 | for (; V.end() == false; V++) |
| 89 | { |
| 90 | // See if we can fetch this version at all |
| 91 | bool IsFetchable = false; |
| 92 | for (pkgCache::VerFileIterator J = V.FileList(); |
| 93 | J.end() == false; J++) |
| 94 | { |
| 95 | if (CleanInstalled == true && |
| 96 | (J.File()->Flags & pkgCache::Flag::NotSource) != 0) |
| 97 | continue; |
| 98 | IsFetchable = true; |
| 99 | break; |
| 100 | } |
| 101 | |
| 102 | // See if this verison matches the file |
| 103 | if (IsFetchable == true && Ver == V.VerStr()) |
| 104 | break; |
| 105 | } |
| 106 | |
| 107 | // We found a match, keep the file |
| 108 | if (V.end() == false) |
| 109 | continue; |
| 110 | } |
| 111 | |
| 112 | Erase(Dir->d_name,Pkg,Ver,St); |
| 113 | }; |
| 114 | |
| 115 | chdir(StartDir.c_str()); |
| 116 | closedir(D); |
| 117 | return true; |
| 118 | } |
| 119 | /*}}}*/ |