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1 | // -*- mode: cpp; mode: fold -*- |
2 | // Description /*{{{*/ | |
3 | /* ##################################################################### | |
4 | ||
5 | cover around the internal solver to be able to run it like an external | |
6 | ||
7 | ##################################################################### */ | |
8 | /*}}}*/ | |
9 | // Include Files /*{{{*/ | |
10 | #include <apt-pkg/error.h> | |
11 | #include <apt-pkg/cmndline.h> | |
12 | #include <apt-pkg/init.h> | |
13 | #include <apt-pkg/cachefile.h> | |
14 | #include <apt-pkg/strutl.h> | |
15 | #include <apt-pkg/edsp.h> | |
16 | #include <apt-pkg/algorithms.h> | |
17 | #include <apt-pkg/fileutl.h> | |
18 | ||
19 | #include <config.h> | |
20 | #include <apti18n.h> | |
21 | ||
22 | #include <unistd.h> | |
23 | #include <cstdio> | |
24 | /*}}}*/ | |
25 | ||
26 | // ShowHelp - Show a help screen /*{{{*/ | |
27 | // --------------------------------------------------------------------- | |
28 | /* */ | |
29 | bool ShowHelp(CommandLine &CmdL) { | |
30 | ioprintf(std::cout,_("%s %s for %s compiled on %s %s\n"),PACKAGE,VERSION, | |
31 | COMMON_ARCH,__DATE__,__TIME__); | |
32 | ||
33 | std::cout << | |
34 | _("Usage: apt-internal-resolver\n" | |
35 | "\n" | |
36 | "apt-internal-resolver is an interface to use the current internal\n" | |
37 | "like an external resolver for the APT family for debugging or alike\n" | |
38 | "\n" | |
39 | "Options:\n" | |
40 | " -h This help text.\n" | |
41 | " -q Loggable output - no progress indicator\n" | |
42 | " -c=? Read this configuration file\n" | |
43 | " -o=? Set an arbitrary configuration option, eg -o dir::cache=/tmp\n" | |
44 | "apt.conf(5) manual pages for more information and options.\n" | |
45 | " This APT has Super Cow Powers.\n"); | |
46 | return true; | |
47 | } | |
48 | /*}}}*/ | |
49 | int main(int argc,const char *argv[]) /*{{{*/ | |
50 | { | |
51 | CommandLine::Args Args[] = { | |
52 | {'h',"help","help",0}, | |
53 | {'v',"version","version",0}, | |
54 | {'q',"quiet","quiet",CommandLine::IntLevel}, | |
55 | {'q',"silent","quiet",CommandLine::IntLevel}, | |
56 | {0,0,0,0}}; | |
57 | ||
58 | CommandLine CmdL(Args,_config); | |
59 | if (pkgInitConfig(*_config) == false || | |
60 | CmdL.Parse(argc,argv) == false) { | |
61 | _error->DumpErrors(); | |
62 | return 2; | |
63 | } | |
64 | ||
65 | // See if the help should be shown | |
66 | if (_config->FindB("help") == true || | |
67 | _config->FindB("version") == true) { | |
68 | ShowHelp(CmdL); | |
69 | return 1; | |
70 | } | |
71 | ||
72 | // Deal with stdout not being a tty | |
73 | if (!isatty(STDOUT_FILENO) && _config->FindI("quiet", -1) == -1) | |
74 | _config->Set("quiet","1"); | |
75 | ||
76 | if (_config->FindI("quiet", 0) < 1) | |
77 | _config->Set("Debug::EDSP::WriteSolution", true); | |
78 | ||
79 | _config->Set("APT::Solver::Name", "internal"); | |
80 | _config->Set("edsp::scenario", "stdin"); | |
81 | int input = STDIN_FILENO; | |
82 | FILE* output = stdout; | |
83 | SetNonBlock(input, false); | |
84 | ||
85 | if (pkgInitSystem(*_config,_system) == false) { | |
86 | std::cerr << "System could not be initialized!" << std::endl; | |
87 | return 1; | |
88 | } | |
89 | ||
90 | if (WaitFd(input, false, 5) == false) | |
91 | std::cerr << "WAIT timed out in the resolver" << std::endl; | |
92 | ||
93 | std::list<std::string> install, remove; | |
94 | bool upgrade, distUpgrade, autoRemove; | |
95 | if (EDSP::ReadRequest(input, install, remove, upgrade, distUpgrade, autoRemove) == false) { | |
96 | std::cerr << "Parsing the request failed!" << std::endl; | |
97 | return 2; | |
98 | } | |
99 | ||
100 | pkgCacheFile CacheFile; | |
101 | CacheFile.Open(NULL, false); | |
102 | ||
103 | if (EDSP::ApplyRequest(install, remove, CacheFile) == false) { | |
104 | std::cerr << "Failed to apply request to depcache!" << std::endl; | |
105 | return 3; | |
106 | } | |
d9933172 DK |
107 | |
108 | pkgProblemResolver Fix(CacheFile); | |
109 | for (std::list<std::string>::const_iterator i = remove.begin(); | |
110 | i != remove.end(); ++i) { | |
111 | pkgCache::PkgIterator P = CacheFile->FindPkg(*i); | |
112 | Fix.Clear(P); | |
113 | Fix.Protect(P); | |
114 | Fix.Remove(P); | |
115 | } | |
116 | ||
117 | for (std::list<std::string>::const_iterator i = install.begin(); | |
118 | i != install.end(); ++i) { | |
119 | pkgCache::PkgIterator P = CacheFile->FindPkg(*i); | |
120 | Fix.Clear(P); | |
121 | Fix.Protect(P); | |
122 | } | |
123 | ||
4128c846 DK |
124 | for (std::list<std::string>::const_iterator i = install.begin(); |
125 | i != install.end(); ++i) | |
126 | CacheFile->MarkInstall(CacheFile->FindPkg(*i), true); | |
127 | ||
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4128c846 DK |
129 | if (Fix.Resolve() == false) { |
130 | EDSP::WriteError("An error occured", output); | |
131 | return 0; | |
132 | } | |
133 | ||
134 | if (EDSP::WriteSolution(CacheFile, output) == false) { | |
135 | std::cerr << "Failed to output the solution!" << std::endl; | |
136 | return 4; | |
137 | } | |
138 | ||
139 | bool const Errors = _error->PendingError(); | |
140 | if (_config->FindI("quiet",0) > 0) | |
141 | _error->DumpErrors(); | |
142 | else | |
143 | _error->DumpErrors(GlobalError::DEBUG); | |
144 | return Errors == true ? 100 : 0; | |
145 | } | |
146 | /*}}}*/ |