From 611ea3fc503e7d210cc180722271cc8bca15c559 Mon Sep 17 00:00:00 2001
From: Alexander Sulfrian <alexander@sulfrian.net>
Date: Sat, 7 Feb 2015 18:54:28 +0100
Subject: Add Dummy packages backend and client tool to ignore all packages.

---
 schemas/packages.xsd                              |  1 +
 schemas/types.xsd                                 |  1 +
 src/lib/Bcfg2/Client/Tools/Dummy.py               | 16 +++++++++++
 src/lib/Bcfg2/Server/Plugins/Packages/Dummy.py    | 35 +++++++++++++++++++++++
 src/lib/Bcfg2/Server/Plugins/Packages/__init__.py |  3 +-
 5 files changed, 55 insertions(+), 1 deletion(-)
 create mode 100644 src/lib/Bcfg2/Client/Tools/Dummy.py
 create mode 100644 src/lib/Bcfg2/Server/Plugins/Packages/Dummy.py

diff --git a/schemas/packages.xsd b/schemas/packages.xsd
index 08c51a1d1..b61b97dde 100644
--- a/schemas/packages.xsd
+++ b/schemas/packages.xsd
@@ -20,6 +20,7 @@
       <xsd:enumeration value="pkgng"/>
       <xsd:enumeration value="portage"/>
       <xsd:enumeration value="layman"/>
+      <xsd:enumeration value="dummy"/>
     </xsd:restriction>
   </xsd:simpleType>
 
diff --git a/schemas/types.xsd b/schemas/types.xsd
index 0a55f6355..5165d186b 100644
--- a/schemas/types.xsd
+++ b/schemas/types.xsd
@@ -28,6 +28,7 @@
       <xsd:enumeration value='ebuild' />
       <xsd:enumeration value='yum' />
       <xsd:enumeration value='freebsdpkg' />
+      <xsd:enumeration value='dummy' />
     </xsd:restriction>
   </xsd:simpleType>
 
diff --git a/src/lib/Bcfg2/Client/Tools/Dummy.py b/src/lib/Bcfg2/Client/Tools/Dummy.py
new file mode 100644
index 000000000..9a96eb904
--- /dev/null
+++ b/src/lib/Bcfg2/Client/Tools/Dummy.py
@@ -0,0 +1,16 @@
+"""This is the Bcfg2 tool for the Dummy package system."""
+
+import re
+import Bcfg2.Client.Tools
+
+
+class Dummy(Bcfg2.Client.Tools.PkgTool):
+    __handles__ = [('Package', 'dummy')]
+    __req__ = {'Package': []}
+    pkgtype = 'dummy'
+
+    def RefreshPackages(self):
+        pass
+
+    def VerifyPackage(self, _entry, _):
+        return True
diff --git a/src/lib/Bcfg2/Server/Plugins/Packages/Dummy.py b/src/lib/Bcfg2/Server/Plugins/Packages/Dummy.py
new file mode 100644
index 000000000..f47b8f22c
--- /dev/null
+++ b/src/lib/Bcfg2/Server/Plugins/Packages/Dummy.py
@@ -0,0 +1,35 @@
+""" Dummy backend for :mod:`Bcfg2.Server.Plugins.Packages` """
+
+from Bcfg2.Server.Plugins.Packages.Collection import Collection
+from Bcfg2.Server.Plugins.Packages.Source import Source
+
+
+class DummyCollection(Collection):
+    """ Handle collections of Dummy sources.  This is a no-op object
+    that simply inherits from
+    :class:`Bcfg2.Server.Plugins.Packages.Collection.Collection`,
+    overrides nothing, and defers all operations to :class:`PacSource`
+    """
+
+    def __init__(self, metadata, sources, cachepath, basepath, debug=False):
+        # we define an __init__ that just calls the parent __init__,
+        # so that we can set the docstring on __init__ to something
+        # different from the parent __init__ -- namely, the parent
+        # __init__ docstring, minus everything after ``.. -----``,
+        # which we use to delineate the actual docs from the
+        # .. autoattribute hacks we have to do to get private
+        # attributes included in sphinx 1.0 """
+        Collection.__init__(self, metadata, sources, cachepath, basepath,
+                            debug=debug)
+    __init__.__doc__ = Collection.__init__.__doc__.split(".. -----")[0]
+
+
+class DummySource(Source):
+    """ Handle Dummy sources """
+
+    #: DummySource sets the ``type`` on Package entries to "dummy"
+    ptype = 'dummy'
+
+    def __init__(self, basepath, xsource):
+        xsource.set('rawurl', 'http://example.com/')
+        Source.__init__(self, basepath, xsource)
diff --git a/src/lib/Bcfg2/Server/Plugins/Packages/__init__.py b/src/lib/Bcfg2/Server/Plugins/Packages/__init__.py
index 8ddc050f7..a03c9d721 100644
--- a/src/lib/Bcfg2/Server/Plugins/Packages/__init__.py
+++ b/src/lib/Bcfg2/Server/Plugins/Packages/__init__.py
@@ -103,7 +103,8 @@ class Packages(Bcfg2.Server.Plugin.Plugin,
             help="Packages backends to load",
             type=Bcfg2.Options.Types.comma_list,
             action=PackagesBackendAction,
-            default=['Yum', 'Apt', 'Pac', 'Pkgng', 'Portage', 'Layman']),
+            default=['Yum', 'Apt', 'Pac', 'Pkgng', 'Portage', 'Layman',
+                     'Dummy']),
         Bcfg2.Options.PathOption(
             cf=("packages", "cache"), dest="packages_cache",
             help="Path to the Packages cache",
-- 
cgit v1.2.3-1-g7c22