1 files changed, 79 insertions, 0 deletions
diff --git a/src/virtBootstrap/sources/file_source.py b/src/virtBootstrap/sources/file_source.py
new file mode 100644
index 0000000..c02f735
--- /dev/null
+++ b/src/virtBootstrap/sources/file_source.py
@@ -0,0 +1,79 @@
+# Authors: Cedric Bosdonnat <cbosdonnat@suse.com>
+#
+# Copyright (C) 2017 SUSE, Inc.
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+"""
+FileSource aim is to extract root filesystem from tar archive to destination
+directory or qcow2 image.
+"""
+
+import os
+import logging
+
+from virtBootstrap import utils
+
+
+# pylint: disable=invalid-name
+# Create logger
+logger = logging.getLogger(__name__)
+
+
+class FileSource(object):
+    """
+    Extract root filesystem from file.
+    """
+    def __init__(self, **kwargs):
+        """
+        Bootstrap root filesystem from tarball
+
+        @param uri: Path to tar archive file.
+        @param fmt: Format used to store image [dir, qcow2]
+        @param progress: Instance of the progress module
+        """
+        self.path = kwargs['uri'].path
+        self.output_format = kwargs.get('fmt', utils.DEFAULT_OUTPUT_FORMAT)
+        self.progress = kwargs['progress'].update_progress
+
+    def unpack(self, dest):
+        """
+        Safely extract root filesystem from tarball
+
+        @param dest: Directory path where the files to be extraced
+        """
+
+        if not os.path.isfile(self.path):
+            raise Exception('Invalid file source "%s"' % self.path)
+
+        if self.output_format == 'dir':
+            self.progress("Extracting files into destination directory",
+                          value=0, logger=logger)
+            utils.safe_untar(self.path, dest)
+
+        elif self.output_format == 'qcow2':
+            # Remove the old path
+            file_name = os.path.basename(self.path)
+            qcow2_file = os.path.realpath('{}/{}.qcow2'.format(dest,
+                                                               file_name))
+
+            self.progress("Extracting files into qcow2 image", value=0,
+                          logger=logger)
+            utils.create_qcow2(self.path, qcow2_file)
+        else:
+            raise Exception("Unknown format:" + self.output_format)
+
+        self.progress("Extraction completed successfully!", value=100,
+                      logger=logger)
+        logger.info("Files are stored in: " + dest)