added ability to override jinja enviornment from first line of template Signed-off-by: Brian Coca <briancoca+ansible@gmail.com>

Signed-off-by: Brian Coca <briancoca+dev@gmail.com>

lib/ansible/utils/template.py

@@ -275,6 +275,16 @@ def template_from_file(basedir, path, vars):
         raise errors.AnsibleError("unable to process as utf-8: %s" % realpath)
     except:
         raise errors.AnsibleError("unable to read %s" % realpath)
+
+    # Get jinja env overrides from template
+    if data.startswith('#env:'):
+        eol = data.find('\n')
+        line = data[5:eol]
+        data = data[eol+1:]
+        for pair in line.split(','):
+            (key,val) = pair.split(':')
+            setattr(environment,key.strip(),val.strip())
+
     t = environment.from_string(data)
     vars = vars.copy()
     try: