Packages: Support different compression methods

The new Reader classes implement different compression methods for the files
parsed by the Packages backends. Each source can specify a default compression
format. The user can configure a compression format per Source and the filename
and extension for the metadata files are generated automatically.

1 files changed, 14 insertions, 1 deletions

diff --git a/src/lib/Bcfg2/Server/Plugins/Packages/__init__.py b/src/lib/Bcfg2/Server/Plugins/Packages/__init__.py
index 23ccd7b8e..1b53b1bb4 100644
--- a/src/lib/Bcfg2/Server/Plugins/Packages/__init__.py
+++ b/src/lib/Bcfg2/Server/Plugins/Packages/__init__.py
@@ -14,6 +14,7 @@ from Bcfg2.Compat import urlopen, HTTPError, URLError
 from Bcfg2.Server.Plugins.Packages.Collection import Collection, \
     get_collection_class
 from Bcfg2.Server.Plugins.Packages.PackagesSources import PackagesSources
+from Bcfg2.Server.Plugins.Packages.Readers import get_readers
 from Bcfg2.Server.Statistics import track_statistics
 
 
@@ -36,6 +37,12 @@ class PackagesBackendAction(Bcfg2.Options.ComponentAction):
     fail_silently = True
 
 
+class PackagesReadersAction(Bcfg2.Options.ComponentAction):
+    """ ComponentAction to load Packages readers """
+    bases = ['Bcfg2.Server.Plugins.Packages.Readers']
+    module = True
+
+
 class Packages(Bcfg2.Server.Plugin.Plugin,
                Bcfg2.Server.Plugin.StructureValidator,
                Bcfg2.Server.Plugin.Generator,
@@ -82,7 +89,13 @@ class Packages(Bcfg2.Server.Plugin.Plugin,
             cf=("packages", "apt_config"),
             help="The default path for generated apt configs",
             default="/etc/apt/sources.list.d/"
-            "bcfg2-packages-generated-sources.list")]
+            "bcfg2-packages-generated-sources.list"),
+        Bcfg2.Options.Option(
+            cf=("packages", "readers"), dest="packages_readers",
+            help="Packages readers to load",
+            type=Bcfg2.Options.Types.comma_list,
+            action=PackagesReadersAction,
+            default=get_readers())]
 
     #: Packages is an alternative to
     #: :mod:`Bcfg2.Server.Plugins.Pkgmgr` and conflicts with it.