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-rw-r--r--pkg/tuf/apply_updates.py83
1 files changed, 83 insertions, 0 deletions
diff --git a/pkg/tuf/apply_updates.py b/pkg/tuf/apply_updates.py
new file mode 100644
index 00000000..7b52ef11
--- /dev/null
+++ b/pkg/tuf/apply_updates.py
@@ -0,0 +1,83 @@
+#!/usr/local/bin python
+# -*- coding: utf-8 -*-
+# apply_updates.py
+# Copyright (C) 2015 LEAP
+#
+# 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/>.
+"""
+Apply downloaded updates to the bundle
+"""
+
+import os
+import os.path
+import shutil
+import tuf.client.updater
+
+
+REPO_DIR = "repo/"
+UPDATES_DIR = "updates/"
+
+
+def update_if_needed():
+ if not os.path.isdir(UPDATES_DIR):
+ print "No updates found"
+ return
+
+ print "Found updates, merging directories before doing anything..."
+ try:
+ remove_obsolete()
+ merge_directories(UPDATES_DIR, ".")
+ shutil.rmtree(UPDATES_DIR)
+ except Exception as e:
+ print "An error has ocurred while updating: " + e.message
+
+
+def remove_obsolete():
+ tuf.conf.repository_directory = REPO_DIR
+ updater = tuf.client.updater.Updater('leap-updater', {})
+ updater.remove_obsolete_targets(".")
+
+
+def merge_directories(src, dest):
+ for root, dirs, files in os.walk(src):
+ if not os.path.exists(root):
+ # It was moved as the dir din't exist in dest
+ continue
+
+ destroot = os.path.join(dest, root[len(src):])
+
+ for f in files:
+ srcpath = os.path.join(root, f)
+ destpath = os.path.join(destroot, f)
+ if os.path.exists(destpath):
+ # FIXME: On windows we can't remove, but we can rename and
+ # afterwards remove. is that still true with python?
+ # or was just something specific of our implementation
+ # with C++?
+ os.remove(destpath)
+ os.rename(srcpath, destpath)
+
+ for d in dirs:
+ srcpath = os.path.join(root, d)
+ destpath = os.path.join(destroot, d)
+
+ if os.path.exists(destpath) and not os.path.isdir(destpath):
+ os.remove(destpath)
+
+ if not os.path.exists(destpath):
+ os.rename(srcpath, destpath)
+
+
+if __name__ == "__main__":
+ update_if_needed()