From 9fbbbcb76a141658c156b3fd4ffe01ca622fa44c Mon Sep 17 00:00:00 2001
From: Justin Santa Barbara <justin@fathomdb.com>
Date: Wed, 27 Dec 2017 11:53:05 -0500
Subject: [PATCH] Add hack/dep.py to check dep status against k8s Godeps.json

---
 hack/dep.py | 73 +++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 73 insertions(+)
 create mode 100755 hack/dep.py

diff --git a/hack/dep.py b/hack/dep.py
new file mode 100755
index 0000000000..362977ddf2
--- /dev/null
+++ b/hack/dep.py
@@ -0,0 +1,73 @@
+#!/usr/bin/env python
+
+# Copyright 2017 The Kubernetes Authors.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+# This python script helps sync godeps from the k8s repos into our git submodules
+# It generates bash commands where changes are needed
+# We can probably also use it for deps when the time comes!
+
+import json
+import os
+import subprocess
+from os.path import join
+
+if not os.environ['GOPATH']:
+  raise Exception("Must set GOPATH")
+
+kops_dir = join(os.environ['GOPATH'], 'src', 'k8s.io', 'kops')
+k8s_dir = join(os.environ['GOPATH'], 'src', 'k8s.io', 'kubernetes')
+
+with open(join(k8s_dir, 'Godeps', 'Godeps.json')) as data_file:
+  godeps = json.load(data_file)
+
+# For debugging, because dep status is unbearably slow
+# dep status -json | jq .> dep-status.json
+# with open(join(kops_dir, 'dep-status.json')) as data_file:
+#   dep_status = json.load(data_file)
+
+process = subprocess.Popen(['dep', 'status', '-json'], stdout=subprocess.PIPE, cwd=kops_dir)
+dep_status_stdout, err = process.communicate()
+dep_status = json.loads(dep_status_stdout)
+
+#pprint(godeps)
+
+godep_map = {}
+for godep in godeps['Deps']:
+  #print("%s %s" % (godep['ImportPath'], godep['Rev']))
+  godep_map[godep['ImportPath']] = godep['Rev']
+
+dep_status_map = {}
+for dep in dep_status:
+  #print("%s %s" % (godep['ImportPath'], godep['Rev']))
+  dep_status_map[dep['ProjectRoot']] = dep['Revision']
+
+
+for dep in dep_status_map:
+  sha = dep_status_map.get(dep)
+  godep_sha = godep_map.get(dep)
+  if not godep_sha:
+    for k in godep_map:
+      if k.startswith(dep):
+        godep_sha = godep_map[k]
+        break
+  if godep_sha:
+    if godep_sha != sha:
+      print("# update needed: %s %s vs %s" % (dep, godep_sha, sha))
+      print("[[override]]")
+      print('  name = "%s"' % (dep))
+      print('  revision = "%s"' % (godep_sha))
+      #print("pushd _vendor/{dep}; git fetch; git checkout {sha}; popd".format(dep=dep, sha=godep_sha))
+  else:
+    print("# UNKNOWN dep %s" % dep)