Remove submodule, just put Dependencies in ./libs

libs/migrate/versioning/script/base.py

@@ -0,0 +1,57 @@
+#!/usr/bin/env python
+# -*- coding: utf-8 -*-
+import logging
+
+from migrate import exceptions
+from migrate.versioning.config import operations
+from migrate.versioning import pathed
+
+
+log = logging.getLogger(__name__)
+
+class BaseScript(pathed.Pathed):
+    """Base class for other types of scripts.
+    All scripts have the following properties:
+
+    source (script.source())
+      The source code of the script
+    version (script.version())
+      The version number of the script
+    operations (script.operations())
+      The operations defined by the script: upgrade(), downgrade() or both.
+      Returns a tuple of operations.
+      Can also check for an operation with ex. script.operation(Script.ops.up)
+    """ # TODO: sphinxfy this and implement it correctly
+
+    def __init__(self, path):
+        log.debug('Loading script %s...' % path)
+        self.verify(path)
+        super(BaseScript, self).__init__(path)
+        log.debug('Script %s loaded successfully' % path)
+    
+    @classmethod
+    def verify(cls, path):
+        """Ensure this is a valid script
+        This version simply ensures the script file's existence
+
+        :raises: :exc:`InvalidScriptError <migrate.exceptions.InvalidScriptError>`
+        """
+        try:
+            cls.require_found(path)
+        except:
+            raise exceptions.InvalidScriptError(path)
+
+    def source(self):
+        """:returns: source code of the script.
+        :rtype: string
+        """
+        fd = open(self.path)
+        ret = fd.read()
+        fd.close()
+        return ret
+
+    def run(self, engine):
+        """Core of each BaseScript subclass.
+        This method executes the script.
+        """
+        raise NotImplementedError()