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Diffstat (limited to 'cmdline/apt-config.cc')
| -rw-r--r-- | cmdline/apt-config.cc | 144 |
1 files changed, 144 insertions, 0 deletions
diff --git a/cmdline/apt-config.cc b/cmdline/apt-config.cc new file mode 100644 index 0000000..6b1e385 --- /dev/null +++ b/cmdline/apt-config.cc @@ -0,0 +1,144 @@ +// -*- mode: cpp; mode: fold -*- +// Description /*{{{*/ +/* ###################################################################### + + APT Config - Program to manipulate APT configuration files + + This program will parse a config file and then do something with it. + + Commands: + shell - Shell mode. After this a series of word pairs should occur. + The first is the environment var to set and the second is + the key to set it from. Use like: + eval `apt-config shell QMode apt::QMode` + + ##################################################################### */ + /*}}}*/ +// Include Files /*{{{*/ +#include <config.h> + +#include <apt-pkg/aptconfiguration.h> +#include <apt-pkg/cmndline.h> +#include <apt-pkg/configuration.h> +#include <apt-pkg/error.h> +#include <apt-pkg/init.h> +#include <apt-pkg/pkgsystem.h> +#include <apt-pkg/strutl.h> + +#include <cstring> +#include <iostream> +#include <map> +#include <string> +#include <vector> + +#include <apt-private/private-cmndline.h> +#include <apt-private/private-main.h> + +#include <apti18n.h> + /*}}}*/ +using namespace std; + +// DoShell - Handle the shell command /*{{{*/ +// --------------------------------------------------------------------- +/* */ +static bool DoShell(CommandLine &CmdL) +{ + for (const char **I = CmdL.FileList + 1; *I != 0; I += 2) + { + if (I[1] == 0 || strlen(I[1]) == 0) + return _error->Error(_("Arguments not in pairs")); + + string key = I[1]; + if (key.end()[-1] == '/') // old directory format + key.append("d"); + + if (_config->ExistsAny(key.c_str())) + cout << *I << "='" << + SubstVar(_config->FindAny(key.c_str()),"'","'\\''") << '\'' << endl; + + } + + return true; +} + /*}}}*/ +// DoDump - Dump the configuration space /*{{{*/ +// --------------------------------------------------------------------- +/* */ +static bool DoDump(CommandLine &CmdL) +{ + bool const empty = _config->FindB("APT::Config::Dump::EmptyValue", true); + std::string const format = _config->Find("APT::Config::Dump::Format", "%F \"%v\";\n"); + if (CmdL.FileSize() == 1) + _config->Dump(cout, NULL, format.c_str(), empty); + else + for (const char **I = CmdL.FileList + 1; *I != 0; ++I) + _config->Dump(cout, *I, format.c_str(), empty); + return true; +} + /*}}}*/ +static bool ShowHelp(CommandLine &) /*{{{*/ +{ + std::cout << + _("Usage: apt-config [options] command\n" + "\n" + "apt-config is an interface to the configuration settings used by\n" + "all APT tools, mainly intended for debugging and shell scripting.\n"); + return true; +} + /*}}}*/ +static std::vector<aptDispatchWithHelp> GetCommands() /*{{{*/ +{ + return { + {"shell", &DoShell, _("get configuration values via shell evaluation")}, + {"dump", &DoDump, _("show the active configuration setting")}, + {nullptr, nullptr, nullptr} + }; +} + /*}}}*/ +int main(int argc,const char *argv[]) /*{{{*/ +{ + // Parse the command line and initialize the package library + CommandLine CmdL; + auto const Cmds = ParseCommandLine(CmdL, APT_CMD::APT_CONFIG, &_config, &_system, argc, argv, &ShowHelp, &GetCommands); + + std::vector<std::string> const langs = APT::Configuration::getLanguages(true); + _config->Clear("Acquire::Languages"); + for (std::vector<std::string>::const_iterator l = langs.begin(); l != langs.end(); ++l) + _config->Set("Acquire::Languages::", *l); + + std::vector<std::string> const archs = APT::Configuration::getArchitectures(); + _config->Clear("APT::Architectures"); + for (std::vector<std::string>::const_iterator a = archs.begin(); a != archs.end(); ++a) + _config->Set("APT::Architectures::", *a); + + string const conf = "APT::Compressor::"; + std::map<std::string,std::string> CompressorNames; + for (auto && key : _config->FindVector("APT::Compressor", "", true)) + { + auto const comp = conf + key + "::Name"; + CompressorNames.emplace(_config->Find(comp, key), key); + } + std::vector<APT::Configuration::Compressor> const compressors = APT::Configuration::getCompressors(); + _config->Clear("APT::Compressor"); + for (std::vector<APT::Configuration::Compressor>::const_iterator c = compressors.begin(); c != compressors.end(); ++c) + { + auto const n = CompressorNames.find(c->Name); + string comp = conf + (n == CompressorNames.end() ? c->Name : n->second) + "::"; + _config->Set(comp + "Name", c->Name); + _config->Set(comp + "Extension", c->Extension); + _config->Set(comp + "Binary", c->Binary); + _config->Set((comp + "Cost").c_str(), c->Cost); + for (std::vector<std::string>::const_iterator a = c->CompressArgs.begin(); a != c->CompressArgs.end(); ++a) + _config->Set(comp + "CompressArg::", *a); + for (std::vector<std::string>::const_iterator a = c->UncompressArgs.begin(); a != c->UncompressArgs.end(); ++a) + _config->Set(comp + "UncompressArg::", *a); + } + + std::vector<std::string> const profiles = APT::Configuration::getBuildProfiles(); + _config->Clear("APT::Build-Profiles"); + for (std::vector<std::string>::const_iterator p = profiles.begin(); p != profiles.end(); ++p) + _config->Set("APT::Build-Profiles::", *p); + + return DispatchCommandLine(CmdL, Cmds); +} + /*}}}*/ |