Added a rudimentary beginnings of a backup plugin.

2 files changed, 68 insertions, 0 deletions

diff --git a/obnamlib/plugins/backup_plugin.py b/obnamlib/plugins/backup_plugin.py
new file mode 100644
index 00000000..03becbc8
--- /dev/null
+++ b/obnamlib/plugins/backup_plugin.py
@@ -0,0 +1,67 @@
+# Copyright (C) 2009  Lars Wirzenius
+#
+# 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/>.
+
+
+import logging
+import os
+
+import obnamlib
+
+
+# Implementation plan:
+# 1. Back up everything, every time.
+# 2. Back up only changed files, but completely.
+# 3. Back up changes using rsync + looking up of chunks via checksums.
+
+
+
+class BackupPlugin(obnamlib.ObnamPlugin):
+
+    def enable(self):
+        self.app.register_command('backup', self.backup)
+        self.app.config.new_list(['root'], 'what to backup')
+        
+    def backup(self, args):
+        roots = self.app.config['root'] + args
+        self.app.hooks.call('status', 'roots %s' % roots)
+        fsf = obnamlib.VfsFactory()
+        storefs = fsf.new(self.app.config['store'])
+        self.store = obnamlib.Store(storefs)
+        for root in roots:
+            self.fs = fsf.new(root)
+            self.fs.connect()
+            self.backup_something(root)
+            self.fs.close()
+
+    def backup_something(self, root):
+        if self.fs.isdir(root):
+            self.backup_dir(root)
+        else:
+            self.backup_file(root)
+
+    def backup_file(self, root):
+        self.app.hooks.call('status', 'backing up file %s' % root)
+        stat_result = self.fs.lstat(root)
+        fileobj = obnamlib.File(basename=os.path.basename(root),
+                                metadata=stat_result)
+        self.store.put_object(fileobj)
+        return fileobj
+
+    def backup_dir(self, root):
+        self.app.hooks.call('status', 'backing up dir %s' % root)
+        for basename in self.fs.listdir(root):
+            fullname = os.path.join(root, basename)
+            self.backup_something(fullname)
+
diff --git a/without-tests b/without-tests
index 3228116b..751e8e80 100644
--- a/without-tests
+++ b/without-tests
@@ -7,6 +7,7 @@
 ./obnamlib/objs.py
 ./obnamlib/store.py
 ./obnamlib/plugins/foo_plugin.py
+./obnamlib/plugins/backup_plugin.py
 ./obnamlib/plugins/terminal_status_plugin.py
 ./test-plugins/hello_plugin.py
 ./test-plugins/oldhello_plugin.py