From de95eb255b0fbf5b4ec0e60d95967e7cac13637c Mon Sep 17 00:00:00 2001
From: Daniel Hartwig <mandyke@gmail.com>
Date: Fri, 2 Mar 2012 19:57:34 +0800
Subject: Move code for reading Top Sections to apt.cc

---
 src/generic/apt/apt.cc | 24 ++++++++++++++++++++++++
 src/generic/apt/apt.h  |  8 ++++++++
 src/pkg_grouppolicy.cc | 10 ++--------
 3 files changed, 34 insertions(+), 8 deletions(-)

diff --git a/src/generic/apt/apt.cc b/src/generic/apt/apt.cc
index c535dcfe..e1167e93 100644
--- a/src/generic/apt/apt.cc
+++ b/src/generic/apt/apt.cc
@@ -1309,5 +1309,29 @@ namespace aptitude
 
       return true;
     }
+
+    const std::vector<std::string> get_top_sections(const bool cached)
+    {
+      static std::vector<std::string> top_sections;
+
+      if(top_sections.empty() == false)
+        {
+          if(cached == true)
+            return top_sections;
+          else
+            top_sections.clear();
+        }
+
+      top_sections = aptcfg->FindVector(PACKAGE "::Sections::Top-Sections");
+      if(top_sections.empty() == true)
+        {
+          top_sections.push_back("main");
+          top_sections.push_back("contrib");
+          top_sections.push_back("non-free");
+          top_sections.push_back("non-US");
+        }
+
+      return top_sections;
+    }
   }
 }
diff --git a/src/generic/apt/apt.h b/src/generic/apt/apt.h
index fc6fb64a..a052fb7e 100644
--- a/src/generic/apt/apt.h
+++ b/src/generic/apt/apt.h
@@ -29,6 +29,7 @@
 #include <boost/shared_ptr.hpp>
 
 #include <utility>
+#include <vector>
 
 /** \brief Central repository for apt structures
  *
@@ -436,6 +437,13 @@ namespace aptitude
      *  version aren't considered; should they be?
      */
     bool is_full_replacement(const pkgCache::DepIterator &dep);
+
+    /** \return an ordered vector of the Top Sections
+     *
+     *  From the configuration item Aptitude::Sections::Top-Sections
+     *  or a builtin list of defaults.
+     */
+    const std::vector<std::string> get_top_sections(const bool cached=true);
   }
 }
 
diff --git a/src/pkg_grouppolicy.cc b/src/pkg_grouppolicy.cc
index 50343a4d..fa69c9ae 100644
--- a/src/pkg_grouppolicy.cc
+++ b/src/pkg_grouppolicy.cc
@@ -360,14 +360,8 @@ void pkg_grouppolicy_section::add_package(const pkgCache::PkgIterator &pkg,
 	      int order = -1;
 	      {
 		      // get an ordered list of top-sections
-		      vector<string> topSections = aptcfg->FindVector(PACKAGE "::Sections::Top-Sections");
-		      if (topSections.empty()) {
-			      // provide some sensible defaults
-			      topSections.push_back("main");
-			      topSections.push_back("contrib");
-			      topSections.push_back("non-free");
-			      topSections.push_back("non-US");
-		      }
+		      const vector<string> topSections = aptitude::apt::get_top_sections();
+
 		      // get the order of the top-section (the lower the number,
 		      // the higher the priority)
 		      for (size_t i = 0; i < topSections.size(); ++i) {
-- 
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