apt-key del: Ignore case when checking if a keyid exists in a keyring.
[ntk/apt.git] / apt-pkg / clean.cc
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<config.h>
12
13 #include <apt-pkg/clean.h>
14 #include <apt-pkg/strutl.h>
15 #include <apt-pkg/error.h>
16 #include <apt-pkg/configuration.h>
17 #include <apt-pkg/aptconfiguration.h>
18 #include <apt-pkg/fileutl.h>
19 #include <apt-pkg/pkgcache.h>
20 #include <apt-pkg/cacheiterators.h>
21
22 #include <string>
23 #include <string.h>
24 #include <dirent.h>
25 #include <sys/stat.h>
26 #include <unistd.h>
27
28 #include <apti18n.h>
29 /*}}}*/
30 // ArchiveCleaner::Go - Perform smart cleanup of the archive /*{{{*/
31 // ---------------------------------------------------------------------
32 /* Scan the directory for files to erase, we check the version information
33 against our database to see if it is interesting */
34 bool pkgArchiveCleaner::Go(std::string Dir,pkgCache &Cache)
35 {
36 bool CleanInstalled = _config->FindB("APT::Clean-Installed",true);
37
38 if(Dir == "/")
39 return _error->Error(_("Clean of %s is not supported"), Dir.c_str());
40
41 DIR *D = opendir(Dir.c_str());
42 if (D == 0)
43 return _error->Errno("opendir",_("Unable to read %s"),Dir.c_str());
44
45 std::string StartDir = SafeGetCWD();
46 if (chdir(Dir.c_str()) != 0)
47 {
48 closedir(D);
49 return _error->Errno("chdir",_("Unable to change to %s"),Dir.c_str());
50 }
51
52 for (struct dirent *Dir = readdir(D); Dir != 0; Dir = readdir(D))
53 {
54 // Skip some files..
55 if (strcmp(Dir->d_name,"lock") == 0 ||
56 strcmp(Dir->d_name,"partial") == 0 ||
57 strcmp(Dir->d_name,".") == 0 ||
58 strcmp(Dir->d_name,"..") == 0)
59 continue;
60
61 struct stat St;
62 if (stat(Dir->d_name,&St) != 0)
63 {
64 _error->Errno("stat",_("Unable to stat %s."),Dir->d_name);
65 closedir(D);
66 if (chdir(StartDir.c_str()) != 0)
67 return _error->Errno("chdir", _("Unable to change to %s"), StartDir.c_str());
68 return false;
69 }
70
71 // Grab the package name
72 const char *I = Dir->d_name;
73 for (; *I != 0 && *I != '_';I++);
74 if (*I != '_')
75 continue;
76 std::string Pkg = DeQuoteString(std::string(Dir->d_name,I-Dir->d_name));
77
78 // Grab the version
79 const char *Start = I + 1;
80 for (I = Start; *I != 0 && *I != '_';I++);
81 if (*I != '_')
82 continue;
83 std::string Ver = DeQuoteString(std::string(Start,I-Start));
84
85 // Grab the arch
86 Start = I + 1;
87 for (I = Start; *I != 0 && *I != '.' ;I++);
88 if (*I != '.')
89 continue;
90 std::string const Arch = DeQuoteString(std::string(Start,I-Start));
91
92 // ignore packages of unconfigured architectures
93 if (APT::Configuration::checkArchitecture(Arch) == false)
94 continue;
95
96 // Lookup the package
97 pkgCache::PkgIterator P = Cache.FindPkg(Pkg, Arch);
98 if (P.end() != true)
99 {
100 pkgCache::VerIterator V = P.VersionList();
101 for (; V.end() == false; ++V)
102 {
103 // See if we can fetch this version at all
104 bool IsFetchable = false;
105 for (pkgCache::VerFileIterator J = V.FileList();
106 J.end() == false; ++J)
107 {
108 if (CleanInstalled == true &&
109 (J.File()->Flags & pkgCache::Flag::NotSource) != 0)
110 continue;
111 IsFetchable = true;
112 break;
113 }
114
115 // See if this version matches the file
116 if (IsFetchable == true && Ver == V.VerStr())
117 break;
118 }
119
120 // We found a match, keep the file
121 if (V.end() == false)
122 continue;
123 }
124
125 Erase(Dir->d_name,Pkg,Ver,St);
126 };
127
128 closedir(D);
129 if (chdir(StartDir.c_str()) != 0)
130 return _error->Errno("chdir", _("Unable to change to %s"), StartDir.c_str());
131 return true;
132 }
133 /*}}}*/