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-rw-r--r--paludis/repositories/e/traditional_profile_file.cc217
1 files changed, 217 insertions, 0 deletions
diff --git a/paludis/repositories/e/traditional_profile_file.cc b/paludis/repositories/e/traditional_profile_file.cc
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index 000000000..a0b9ada83
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+++ b/paludis/repositories/e/traditional_profile_file.cc
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+/* vim: set sw=4 sts=4 et foldmethod=syntax : */
+
+/*
+ * Copyright (c) 2006, 2007, 2008, 2009, 2010, 2011 Ciaran McCreesh
+ *
+ * This file is part of the Paludis package manager. Paludis is free software;
+ * you can redistribute it and/or modify it under the terms of the GNU General
+ * Public License version 2, as published by the Free Software Foundation.
+ *
+ * Paludis is distributed in the hope that it will be useful, but WITHOUT ANY
+ * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+ * FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
+ * details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program; if not, write to the Free Software Foundation, Inc., 59 Temple
+ * Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+
+#include <paludis/repositories/e/traditional_profile_file.hh>
+#include <paludis/repositories/e/e_repository_exceptions.hh>
+#include <paludis/repositories/e/eapi.hh>
+#include <paludis/repositories/e/e_repository.hh>
+#include <paludis/repositories/e/traditional_mask_file.hh>
+#include <paludis/util/log.hh>
+#include <paludis/util/stringify.hh>
+#include <paludis/util/config_file.hh>
+#include <paludis/util/wrapped_forward_iterator-impl.hh>
+#include <paludis/util/pimp-impl.hh>
+#include <paludis/util/options.hh>
+#include <paludis/util/fs_stat.hh>
+#include <paludis/mask.hh>
+#include <list>
+#include <set>
+#include <algorithm>
+#include <type_traits>
+
+using namespace paludis;
+using namespace paludis::erepository;
+
+namespace
+{
+ template <typename T_>
+ struct FileEntryTraits;
+
+ template<>
+ struct FileEntryTraits<const std::string>
+ {
+ static const std::string extract_key(const std::string & k)
+ {
+ return k;
+ }
+ };
+
+ template <typename F_, typename S_>
+ struct FileEntryTraits<const std::pair<F_, S_> >
+ {
+ static const std::string extract_key(const std::pair<F_, S_> & p)
+ {
+ return p.first;
+ }
+ };
+
+ template <typename T_>
+ struct MatchesKey
+ {
+ const T_ & _x;
+
+ explicit MatchesKey(const T_ & x) :
+ _x(x)
+ {
+ }
+
+ template <typename U_>
+ bool operator() (const U_ & y)
+ {
+ return FileEntryTraits<typename U_::second_type>::extract_key(y.second) == _x;
+ }
+ };
+}
+
+namespace paludis
+{
+ template <typename F_>
+ struct Imp<TraditionalProfileFile<F_> >
+ {
+ const EAPIForFileFunction eapi_for_file;
+
+ typedef std::list<std::pair<std::shared_ptr<const EAPI>,
+ const typename std::remove_reference<typename F_::ConstIterator::value_type>::type> > Lines;
+ Lines lines;
+
+ std::set<std::string> removed;
+
+ Imp(const EAPIForFileFunction & e) :
+ eapi_for_file(e)
+ {
+ }
+ };
+
+ template <>
+ struct WrappedForwardIteratorTraits<TraditionalProfileFile<LineConfigFile>::ConstIteratorTag>
+ {
+ typedef std::list<std::pair<std::shared_ptr<const EAPI>,
+ const std::remove_reference<LineConfigFile::ConstIterator::value_type>::type> >::const_iterator UnderlyingIterator;
+ };
+
+ template <>
+ struct WrappedForwardIteratorTraits<TraditionalProfileFile<TraditionalMaskFile>::ConstIteratorTag>
+ {
+ typedef std::list<std::pair<std::shared_ptr<const EAPI>,
+ const std::remove_reference<TraditionalMaskFile::ConstIterator::value_type>::type> >::const_iterator UnderlyingIterator;
+ };
+
+ template <typename T_>
+ struct MakeFile
+ {
+ static std::shared_ptr<T_> make(const FSPath & p, const LineConfigFileOptions & o, const EAPI & e)
+ {
+ return std::make_shared<T_>(p, o, e);
+ }
+ };
+
+ template <>
+ struct MakeFile<LineConfigFile>
+ {
+ static std::shared_ptr<LineConfigFile> make(const FSPath & p, const LineConfigFileOptions & o, const EAPI &)
+ {
+ return std::make_shared<LineConfigFile>(p, o);
+ }
+ };
+}
+
+template <typename F_>
+void
+TraditionalProfileFile<F_>::add_file(const FSPath & f)
+{
+ Context context("When adding profile configuration file '" + stringify(f) + "':");
+
+ if (! f.stat().exists())
+ return;
+
+ const std::shared_ptr<const EAPI> eapi(EAPIData::get_instance()->eapi_from_string(_imp->eapi_for_file(f)));
+ if (! eapi->supported())
+ throw ERepositoryConfigurationError("Can't use profile file '" + stringify(f) +
+ "' because it uses an unsupported EAPI");
+
+ std::shared_ptr<F_> file(MakeFile<F_>::make(f, { lcfo_disallow_continuations }, *eapi));
+ for (typename F_::ConstIterator line(file->begin()), line_end(file->end()) ; line != line_end ; ++line)
+ {
+ const std::string key(FileEntryTraits<const typename std::remove_reference<typename F_::ConstIterator::value_type>::type>::extract_key(*line));
+ if (0 == key.compare(0, 1, "-", 0, 1))
+ {
+ typename Imp<TraditionalProfileFile>::Lines::iterator i(
+ std::find_if(this->_imp->lines.begin(), this->_imp->lines.end(),
+ MatchesKey<std::string>(key.substr(1))));
+ if (this->_imp->lines.end() == i)
+ {
+ /* annoying: Gentoo profiles like to remove the same mask entry
+ * more than once, especially when a particular subprofile
+ * section is inherited more than once. Don't warn when this
+ * happens. */
+ if (this->_imp->removed.end() == this->_imp->removed.find(key.substr(1)))
+ Log::get_instance()->message("e.profile.no_match", ll_qa, lc_context)
+ << "No match for '" << key << "'. This usually indicates a bug in your profile.";
+ }
+ else
+ {
+ this->_imp->removed.insert(key.substr(1));
+ while (this->_imp->lines.end() != i)
+ {
+ this->_imp->lines.erase(i++);
+ i = std::find_if(i, this->_imp->lines.end(),
+ MatchesKey<std::string>(key.substr(1)));
+ }
+ }
+ }
+ else
+ this->_imp->lines.push_back(std::make_pair(eapi, *line));
+ }
+}
+
+template <typename F_>
+TraditionalProfileFile<F_>::TraditionalProfileFile(const EAPIForFileFunction & f) :
+ _imp(f)
+{
+}
+
+template <typename F_>
+TraditionalProfileFile<F_>::~TraditionalProfileFile()
+{
+}
+
+template <typename F_>
+typename TraditionalProfileFile<F_>::ConstIterator
+TraditionalProfileFile<F_>::begin() const
+{
+ return ConstIterator(this->_imp->lines.begin());
+}
+
+template <typename F_>
+typename TraditionalProfileFile<F_>::ConstIterator
+TraditionalProfileFile<F_>::end() const
+{
+ return ConstIterator(this->_imp->lines.end());
+}
+
+template class TraditionalProfileFile<LineConfigFile>;
+template class WrappedForwardIterator<TraditionalProfileFile<LineConfigFile>::ConstIteratorTag, const std::pair<
+ std::shared_ptr<const EAPI>,
+ const std::remove_reference<LineConfigFile::ConstIterator::value_type>::type> >;
+
+template class TraditionalProfileFile<TraditionalMaskFile>;
+template class WrappedForwardIterator<TraditionalProfileFile<TraditionalMaskFile>::ConstIteratorTag, const std::pair<
+ std::shared_ptr<const EAPI>,
+ const std::remove_reference<TraditionalMaskFile::ConstIterator::value_type>::type> >;
+