Add 'tools/arvbox/' from commit 'd3d368758db1f4a9fa5b89f77b5ee61d68ef5b72'

[arvados.git] / tools / arvbox / lib / arvbox / docker / application_yml_override.py

diff --git a/tools/arvbox/lib/arvbox/docker/application_yml_override.py b/tools/arvbox/lib/arvbox/docker/application_yml_override.py
new file mode 100755 (executable)
index 0000000..98a8e48
--- /dev/null
+++ b/tools/arvbox/lib/arvbox/docker/application_yml_override.py
@@ -0,0 +1,24 @@
+#!/usr/bin/env python
+
+import yaml
+
+try:
+    with open("application.yml.override") as f:
+        b = yaml.load(f)
+except IOError:
+    exit()
+
+with open("application.yml") as f:
+    a = yaml.load(f)
+
+def recursiveMerge(a, b):
+    if isinstance(a, dict) and isinstance(b, dict):
+        for k in b:
+            print k
+            a[k] = recursiveMerge(a.get(k), b[k])
+        return a
+    else:
+        return b
+
+with open("application.yml", "w") as f:
+    yaml.dump(recursiveMerge(a, b), f)