diff options
Diffstat (limited to 'apt-pkg')
| -rw-r--r-- | apt-pkg/aptconfiguration.cc | 56 |
1 files changed, 34 insertions, 22 deletions
diff --git a/apt-pkg/aptconfiguration.cc b/apt-pkg/aptconfiguration.cc index 1a8e8262f..45ae9bed5 100644 --- a/apt-pkg/aptconfiguration.cc +++ b/apt-pkg/aptconfiguration.cc @@ -14,6 +14,7 @@ #include <vector> #include <string> +#include <algorithm> /*}}}*/ namespace APT { // getCompressionTypes - Return Vector of usbale compressiontypes /*{{{*/ @@ -29,41 +30,52 @@ const Configuration::getCompressionTypes(bool const &Cached) { types.clear(); } + // setup the defaults for the compressiontypes => method mapping + _config->CndSet("Acquire::CompressionTypes::bz2","bzip2"); + _config->CndSet("Acquire::CompressionTypes::lzma","lzma"); + _config->CndSet("Acquire::CompressionTypes::gz","gzip"); + // Set default application paths to check for optional compression types _config->CndSet("Dir::Bin::lzma", "/usr/bin/lzma"); _config->CndSet("Dir::Bin::bzip2", "/bin/bzip2"); - ::Configuration::Item const *Opts = _config->Tree("Acquire::CompressionTypes"); - if (Opts != 0) - Opts = Opts->Child; + // accept non-list order as override setting for config settings on commandline + std::string const overrideOrder = _config->Find("Acquire::CompressionTypes::Order",""); + if (overrideOrder.empty() == false) + types.push_back(overrideOrder); - // at first, move over the options to setup at least the default options - bool foundLzma=false, foundBzip2=false, foundGzip=false; - for (; Opts != 0; Opts = Opts->Next) { - if (Opts->Value == "lzma") - foundLzma = true; - else if (Opts->Value == "bz2") - foundBzip2 = true; - else if (Opts->Value == "gz") - foundGzip = true; + // load the order setting into our vector + std::vector<std::string> const order = _config->FindVector("Acquire::CompressionTypes::Order"); + for (std::vector<std::string>::const_iterator o = order.begin(); + o != order.end(); o++) { + if ((*o).empty() == true) + continue; + // ignore types we have no method ready to use + if (_config->Exists(string("Acquire::CompressionTypes::").append(*o)) == false) + continue; + // ignore types we have no app ready to use + string const appsetting = string("Dir::Bin::").append(*o); + if (_config->Exists(appsetting) == true) { + std::string const app = _config->FindFile(appsetting.c_str(), ""); + if (app.empty() == false && FileExists(app) == false) + continue; + } + types.push_back(*o); } - // setup the defaults now - if (!foundBzip2) - _config->Set("Acquire::CompressionTypes::bz2","bzip2"); - if (!foundLzma) - _config->Set("Acquire::CompressionTypes::lzma","lzma"); - if (!foundGzip) - _config->Set("Acquire::CompressionTypes::gz","gzip"); - - // move again over the option tree to finially calculate our result + // move again over the option tree to add all missing compression types ::Configuration::Item const *Types = _config->Tree("Acquire::CompressionTypes"); if (Types != 0) Types = Types->Child; for (; Types != 0; Types = Types->Next) { + if (Types->Tag == "Order" || Types->Tag.empty() == true) + continue; + // ignore types we already have in the vector + if (std::find(types.begin(),types.end(),Types->Tag) != types.end()) + continue; + // ignore types we have no app ready to use string const appsetting = string("Dir::Bin::").append(Types->Value); - // ignore compression types we have no app ready to use if (appsetting.empty() == false && _config->Exists(appsetting) == true) { std::string const app = _config->FindFile(appsetting.c_str(), ""); if (app.empty() == false && FileExists(app) == false) |