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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 <config.h> | |
13 | ||
14 | #include <apt-pkg/configuration.h> | |
15 | #include <apt-pkg/debversion.h> | |
16 | #include <apt-pkg/edspindexfile.h> | |
17 | #include <apt-pkg/edspsystem.h> | |
18 | #include <apt-pkg/fileutl.h> | |
19 | #include <apt-pkg/pkgcache.h> | |
20 | #include <apt-pkg/cacheiterators.h> | |
21 | ||
22 | #include <stddef.h> | |
23 | #include <string> | |
24 | #include <vector> | |
25 | ||
26 | #include <apti18n.h> | |
27 | /*}}}*/ | |
28 | ||
29 | // System::edspSystem - Constructor /*{{{*/ | |
30 | edspSystem::edspSystem() : pkgSystem("Debian APT solver interface", &debVS), d(NULL), StatusFile(NULL) | |
31 | { | |
32 | } | |
33 | /*}}}*/ | |
34 | // System::~debSystem - Destructor /*{{{*/ | |
35 | edspSystem::~edspSystem() | |
36 | { | |
37 | delete StatusFile; | |
38 | } | |
39 | /*}}}*/ | |
40 | // System::Lock - Get the lock /*{{{*/ | |
41 | bool edspSystem::Lock() | |
42 | { | |
43 | return true; | |
44 | } | |
45 | /*}}}*/ | |
46 | // System::UnLock - Drop a lock /*{{{*/ | |
47 | bool edspSystem::UnLock(bool /*NoErrors*/) | |
48 | { | |
49 | return true; | |
50 | } | |
51 | /*}}}*/ | |
52 | // System::CreatePM - Create the underlying package manager /*{{{*/ | |
53 | // --------------------------------------------------------------------- | |
54 | /* we can't use edsp input as input for real installations - just a | |
55 | simulation can work, but everything else will fail bigtime */ | |
56 | pkgPackageManager *edspSystem::CreatePM(pkgDepCache * /*Cache*/) const | |
57 | { | |
58 | return NULL; | |
59 | } | |
60 | /*}}}*/ | |
61 | // System::Initialize - Setup the configuration space.. /*{{{*/ | |
62 | bool edspSystem::Initialize(Configuration &Cnf) | |
63 | { | |
64 | Cnf.Set("Dir::State::extended_states", "/dev/null"); | |
65 | Cnf.Set("Dir::State::status","/dev/null"); | |
66 | Cnf.Set("Dir::State::lists","/dev/null"); | |
67 | ||
68 | Cnf.Set("Debug::NoLocking", "true"); | |
69 | Cnf.Set("APT::Get::Simulate", "true"); | |
70 | ||
71 | if (StatusFile) { | |
72 | delete StatusFile; | |
73 | StatusFile = 0; | |
74 | } | |
75 | return true; | |
76 | } | |
77 | /*}}}*/ | |
78 | // System::ArchiveSupported - Is a file format supported /*{{{*/ | |
79 | bool edspSystem::ArchiveSupported(const char * /*Type*/) | |
80 | { | |
81 | return false; | |
82 | } | |
83 | /*}}}*/ | |
84 | // System::Score - Never use the EDSP system automatically /*{{{*/ | |
85 | signed edspSystem::Score(Configuration const &) | |
86 | { | |
87 | return -1000; | |
88 | } | |
89 | /*}}}*/ | |
90 | bool edspSystem::AddStatusFiles(std::vector<pkgIndexFile *> &List) /*{{{*/ | |
91 | { | |
92 | if (StatusFile == 0) | |
93 | { | |
94 | if (_config->Find("edsp::scenario", "") == "stdin") | |
95 | StatusFile = new edspIndex("stdin"); | |
96 | else | |
97 | StatusFile = new edspIndex(_config->FindFile("edsp::scenario")); | |
98 | } | |
99 | List.push_back(StatusFile); | |
100 | return true; | |
101 | } | |
102 | /*}}}*/ | |
103 | // System::FindIndex - Get an index file for status files /*{{{*/ | |
104 | bool edspSystem::FindIndex(pkgCache::PkgFileIterator File, | |
105 | pkgIndexFile *&Found) const | |
106 | { | |
107 | if (StatusFile == 0) | |
108 | return false; | |
109 | if (StatusFile->FindInCache(*File.Cache()) == File) | |
110 | { | |
111 | Found = StatusFile; | |
112 | return true; | |
113 | } | |
114 | ||
115 | return false; | |
116 | } | |
117 | /*}}}*/ | |
118 | ||
119 | APT_HIDDEN edspSystem edspSys; |