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1 | // -*- mode: cpp; mode: fold -*- | |
2 | // Description /*{{{*/ | |
3 | /* ###################################################################### | |
4 | ||
5 | This system provides the abstraction to use the scenario file as the | |
6 | only source of package information to be able to feed the created file | |
7 | back to APT for its own consumption (eat your own dogfood). | |
8 | ||
9 | ##################################################################### */ | |
10 | /*}}}*/ | |
11 | // Include Files /*{{{*/ | |
12 | #include <apt-pkg/edspsystem.h> | |
13 | #include <apt-pkg/debversion.h> | |
14 | #include <apt-pkg/edspindexfile.h> | |
15 | #include <apt-pkg/configuration.h> | |
16 | #include <apt-pkg/error.h> | |
17 | #include <apt-pkg/fileutl.h> | |
18 | #include <apti18n.h> | |
19 | #include <sys/types.h> | |
20 | #include <unistd.h> | |
21 | #include <dirent.h> | |
22 | #include <errno.h> | |
23 | /*}}}*/ | |
24 | ||
25 | edspSystem edspSys; | |
26 | ||
27 | // System::debSystem - Constructor /*{{{*/ | |
28 | edspSystem::edspSystem() | |
29 | { | |
30 | StatusFile = 0; | |
31 | ||
32 | Label = "Debian APT solver interface"; | |
33 | VS = &debVS; | |
34 | } | |
35 | /*}}}*/ | |
36 | // System::~debSystem - Destructor /*{{{*/ | |
37 | edspSystem::~edspSystem() | |
38 | { | |
39 | delete StatusFile; | |
40 | } | |
41 | /*}}}*/ | |
42 | // System::Lock - Get the lock /*{{{*/ | |
43 | bool edspSystem::Lock() | |
44 | { | |
45 | return true; | |
46 | } | |
47 | /*}}}*/ | |
48 | // System::UnLock - Drop a lock /*{{{*/ | |
49 | bool edspSystem::UnLock(bool NoErrors) | |
50 | { | |
51 | return true; | |
52 | } | |
53 | /*}}}*/ | |
54 | // System::CreatePM - Create the underlying package manager /*{{{*/ | |
55 | // --------------------------------------------------------------------- | |
56 | /* we can't use edsp input as input for real installations - just a | |
57 | simulation can work, but everything else will fail bigtime */ | |
58 | pkgPackageManager *edspSystem::CreatePM(pkgDepCache *Cache) const | |
59 | { | |
60 | return NULL; | |
61 | } | |
62 | /*}}}*/ | |
63 | // System::Initialize - Setup the configuration space.. /*{{{*/ | |
64 | bool edspSystem::Initialize(Configuration &Cnf) | |
65 | { | |
66 | Cnf.Set("Dir::State::extended_states", "/dev/null"); | |
67 | Cnf.Set("Dir::State::status","/dev/null"); | |
68 | Cnf.Set("Dir::State::lists","/dev/null"); | |
69 | ||
70 | Cnf.Set("Debug::NoLocking", "true"); | |
71 | Cnf.Set("APT::Get::Simulate", "true"); | |
72 | ||
73 | if (StatusFile) { | |
74 | delete StatusFile; | |
75 | StatusFile = 0; | |
76 | } | |
77 | return true; | |
78 | } | |
79 | /*}}}*/ | |
80 | // System::ArchiveSupported - Is a file format supported /*{{{*/ | |
81 | bool edspSystem::ArchiveSupported(const char *Type) | |
82 | { | |
83 | return false; | |
84 | } | |
85 | /*}}}*/ | |
86 | // System::Score - Determine if we should use the edsp system /*{{{*/ | |
87 | signed edspSystem::Score(Configuration const &Cnf) | |
88 | { | |
89 | if (Cnf.Find("edsp::scenario", "") == "stdin") | |
90 | return 1000; | |
91 | if (FileExists(Cnf.FindFile("edsp::scenario","")) == true) | |
92 | return 1000; | |
93 | return -1000; | |
94 | } | |
95 | /*}}}*/ | |
96 | // System::AddStatusFiles - Register the status files /*{{{*/ | |
97 | bool edspSystem::AddStatusFiles(vector<pkgIndexFile *> &List) | |
98 | { | |
99 | if (StatusFile == 0) | |
100 | { | |
101 | if (_config->Find("edsp::scenario", "") == "stdin") | |
102 | StatusFile = new edspIndex("stdin"); | |
103 | else | |
104 | StatusFile = new edspIndex(_config->FindFile("edsp::scenario")); | |
105 | } | |
106 | List.push_back(StatusFile); | |
107 | return true; | |
108 | } | |
109 | /*}}}*/ | |
110 | // System::FindIndex - Get an index file for status files /*{{{*/ | |
111 | bool edspSystem::FindIndex(pkgCache::PkgFileIterator File, | |
112 | pkgIndexFile *&Found) const | |
113 | { | |
114 | if (StatusFile == 0) | |
115 | return false; | |
116 | if (StatusFile->FindInCache(*File.Cache()) == File) | |
117 | { | |
118 | Found = StatusFile; | |
119 | return true; | |
120 | } | |
121 | ||
122 | return false; | |
123 | } | |
124 | /*}}}*/ |