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+/* vim: set sw=4 sts=4 et foldmethod=syntax : */
+
+/*
+ * Copyright (c) 2006 Ciaran McCreesh <ciaranm@ciaranm.org>
+ *
+ * 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
+ */
+
+#ifndef PALUDIS_GUARD_PALUDIS_TASKS_UNINSTALL_TASK_HH
+#define PALUDIS_GUARD_PALUDIS_TASKS_UNINSTALL_TASK_HH 1
+
+#include <paludis/dep_atom.hh>
+#include <paludis/package_database_entry.hh>
+#include <paludis/util/instantiation_policy.hh>
+#include <paludis/util/private_implementation_pattern.hh>
+
+namespace paludis
+{
+ class Environment;
+
+ class PALUDIS_VISIBLE AmbiguousUnmergeTargetError :
+ public Exception
+ {
+ private:
+ const std::string _t;
+ const PackageDatabaseEntryCollection::ConstPointer _p;
+
+ public:
+ AmbiguousUnmergeTargetError(const std::string & our_target,
+ const PackageDatabaseEntryCollection::ConstPointer matches) throw () :
+ Exception("Ambiguous unmerge target '" + our_target + "'"),
+ _t(our_target),
+ _p(matches)
+ {
+ }
+
+ ~AmbiguousUnmergeTargetError() throw ();
+
+ typedef PackageDatabaseEntryCollection::Iterator Iterator;
+
+ Iterator begin() const
+ {
+ return _p->begin();
+ }
+
+ Iterator end() const
+ {
+ return _p->end();
+ }
+
+ const std::string & target() const
+ {
+ return _t;
+ }
+ };
+
+ class PALUDIS_VISIBLE UninstallTask :
+ PrivateImplementationPattern<UninstallTask>,
+ InstantiationPolicy<UninstallTask, instantiation_method::NonCopyableTag>
+ {
+ protected:
+ ///\name Basic operations
+ ///\{
+
+ UninstallTask(Environment * const env);
+
+ ///\}
+
+ public:
+ ///\name Basic operations
+ ///\{
+
+ virtual ~UninstallTask();
+
+ ///\}
+
+ ///\name Behaviour options
+ ///\{
+
+ void set_no_config_protect(const bool value);
+ void set_pretend(const bool value);
+ void set_preserve_world(const bool value);
+
+ ///\}
+
+ ///\name Add targets
+ ///\{
+
+ void add_target(const std::string &);
+
+ ///\}
+
+ ///\name Event callbacks
+ ///\{
+
+ virtual void on_build_unmergelist_pre() = 0;
+ virtual void on_build_unmergelist_post() = 0;
+
+ virtual void on_display_unmerge_list_pre() = 0;
+ virtual void on_display_unmerge_list_post() = 0;
+ virtual void on_display_unmerge_list_entry(const PackageDatabaseEntry &) = 0;
+
+ virtual void on_uninstall_all_pre() = 0;
+ virtual void on_uninstall_pre(const PackageDatabaseEntry &) = 0;
+ virtual void on_uninstall_post(const PackageDatabaseEntry &) = 0;
+ virtual void on_uninstall_all_post() = 0;
+
+ virtual void on_update_world_pre() = 0;
+ virtual void on_update_world(const PackageDepAtom &) = 0;
+ virtual void on_update_world_post() = 0;
+ virtual void on_preserve_world() = 0;
+
+ ///\}
+
+ /**
+ * Run the task.
+ */
+ void execute();
+ };
+}
+
+#endif