From 53c2aa8e382dd50d09b385285bc3fa0b645ace0a Mon Sep 17 00:00:00 2001
From: Karen Arutyunov <karen@codesynthesis.com>
Date: Fri, 19 Aug 2016 17:37:29 +0300
Subject: Support system packages

---
 bpkg/system-repository | 55 ++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 55 insertions(+)
 create mode 100644 bpkg/system-repository

(limited to 'bpkg/system-repository')

diff --git a/bpkg/system-repository b/bpkg/system-repository
new file mode 100644
index 0000000..9e2f3e4
--- /dev/null
+++ b/bpkg/system-repository
@@ -0,0 +1,55 @@
+// file      : bpkg/system-repository -*- C++ -*-
+// copyright : Copyright (c) 2014-2016 Code Synthesis Ltd
+// license   : MIT; see accompanying LICENSE file
+
+#ifndef BPKG_SYSTEM_REPOSITORY
+#define BPKG_SYSTEM_REPOSITORY
+
+#include <map>
+
+#include <bpkg/manifest>
+
+#include <bpkg/types>
+#include <bpkg/utility>
+
+namespace bpkg
+{
+  // A map of discovered system package versions. The information can be
+  // authoritative (i.e., it was provided by the user or auto-discovered
+  // on this run) or non-authoritative (i.e., comes from selected_packages
+  // that are present in the database; in a sence it was authoritative but
+  // on some previous run.
+  //
+  // Note that in our model we assume that once an authoritative version has
+  // been discovered, it does not change (on this run; see caching logic in
+  // available package).
+  //
+  struct system_package
+  {
+    using version_type = bpkg::version;
+
+    version_type version;
+    bool authoritative;
+  };
+
+  class system_repository_type
+  {
+  public:
+    const version&
+    insert (const string& name, const version&, bool authoritative);
+
+    const system_package*
+    find (const string& name)
+    {
+      auto i (map_.find (name));
+      return i != map_.end () ? &i->second : nullptr;
+    }
+
+  private:
+    std::map<string, system_package> map_;
+  };
+
+  extern system_repository_type system_repository;
+}
+
+#endif // BPKG_SYSTEM_REPOSITORY
-- 
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