RIFT OSM R1 Initial Submission

[osm/SO.git] / rwlaunchpad / plugins / rwlaunchpadtasklet / rift / package / script.py

diff --git a/rwlaunchpad/plugins/rwlaunchpadtasklet/rift/package/script.py b/rwlaunchpad/plugins/rwlaunchpadtasklet/rift/package/script.py
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+++ b/rwlaunchpad/plugins/rwlaunchpadtasklet/rift/package/script.py
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+
+# 
+#   Copyright 2016 RIFT.IO Inc
+#
+#   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.
+#
+
+
+import re
+import os.path
+
+from . import package
+
+
+class ScriptExtractionError(Exception):
+    pass
+
+
+class PackageScriptExtractor(object):
+    """ This class is reponsible for extracting scripts to the correct directory
+
+    In order to remain compatible with the existing config manager, we extract the scripts
+    to a known location (RIFT-13282)
+    """
+    DEFAULT_INSTALL_DIR = os.path.join(
+            os.environ["RIFT_INSTALL"],
+            "usr/bin"
+            )
+
+    SCRIPT_REGEX = "{prefix}/?scripts/(?P<script_name>[^/]+)$"
+
+    def __init__(self, log, install_dir=DEFAULT_INSTALL_DIR):
+        self._log = log
+        self._install_dir = install_dir
+
+    def _get_rel_dest_path(self, descriptor_id, script_name):
+        dest_path = os.path.join(self._install_dir, script_name)
+        return dest_path
+
+    @classmethod
+    def package_script_files(cls, package):
+        script_file_map = {}
+
+        for file_name in package.files:
+            match = re.match(
+                    cls.SCRIPT_REGEX.format(prefix=package.prefix),
+                    file_name,
+                    )
+            if match is None:
+                continue
+
+            script_name = match.group("script_name")
+
+            script_file_map[script_name] = file_name
+
+        return script_file_map
+
+    def get_extracted_script_path(self, package_id, script_name):
+        return os.path.join(
+                self._get_rel_dest_path(package_id, script_name),
+                )
+
+    def extract_scripts(self, pkg):
+        descriptor_id = pkg.descriptor_id
+        script_files = PackageScriptExtractor.package_script_files(pkg)
+
+        for script_name, script_file in script_files.items():
+            dest_path = self._get_rel_dest_path(descriptor_id, script_name)
+
+            self._log.debug("Extracting %s script to %s", script_name, dest_path)
+            try:
+                pkg.extract_file(script_file, dest_path)
+            except package.ExtractError as e:
+                raise ScriptExtractionError("Failed to extract script %s" % script_name) from e