transformations first steps

dotdrop/action.py

@@ -24,6 +24,18 @@ class Action:
         except KeyboardInterrupt:
             self.log.warn('action interrupted')
 
+    def transform(self, arg0, arg1):
+        '''execute transformation with {0} and {1}
+        where {0} is the file to transform and
+        {1} is the result file'''
+        cmd = self.action.format(arg0, arg1)
+        self.log.sub('transforming with \"%s\"' % (cmd))
+        try:
+            subprocess.call(cmd, shell=True)
+        except KeyboardInterrupt:
+            self.log.warn('action interrupted')
+        return arg1
+
     def __str__(self):
         return 'key:%s -> \"%s\"' % (self.key, self.action)