1 files changed, 66 insertions, 0 deletions
diff --git a/gcimagebundle/gcimagebundlelib/centos.py b/gcimagebundle/gcimagebundlelib/centos.py
new file mode 100644
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+++ b/gcimagebundle/gcimagebundlelib/centos.py
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+# Copyright 2013 Google Inc. All Rights Reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+
+"""Centos specific platform info."""
+
+
+
+import os
+import platform
+import re
+
+from gcimagebundlelib import linux
+
+
+class Centos(linux.LinuxPlatform):
+  """Centos specific information."""
+
+  @staticmethod
+  def IsThisPlatform(root='/'):
+    release_file = root + '/etc/redhat-release'
+    if os.path.exists(release_file):
+      (_, _, flavor, _) = Centos.ParseRedhatRelease(release_file)
+      if flavor and flavor.lower() == 'centos':
+        return True
+    return False
+
+  @staticmethod
+  def ParseRedhatRelease(release_file='/etc/redhat-release'):
+    """Parses the /etc/redhat-release file."""
+    f = open(release_file)
+    lines = f.readlines()
+    f.close()
+    if not lines:
+      return (None, None, None, None)
+    line0 = lines[0]
+    # Matches both CentOS 6 and CentOS 7 formats.
+    # CentOS 6: CentOS release 6.5 (Final)
+    # CentOS 7: CentOS Linux release 7.0.1406 (Core)
+    g = re.match(r'(\S+)( Linux)? release (\d+(\.\d+)+) \(([^)]*)\)', line0)
+    if not g:
+      return (None, None, None, None)
+    (osname, version, label) = (g.group(1), g.group(3), g.group(5))
+    return (osname, label, osname, version)
+
+  def __init__(self):
+    super(Centos, self).__init__()
+    (self.distribution_codename, _, self.distribution,
+     self.distribution_version) = Centos.ParseRedhatRelease()
+
+  def GetPreferredFilesystemType(self):
+    (_,version,_) = platform.linux_distribution()
+    if version.startswith('7'):
+      return 'xfs'
+    return 'ext4'