[eks] Add EKS release automation

src/eks.py

@@ -0,0 +1,38 @@
+import pygit2
+import re
+from datetime import datetime
+import json
+
+PATH = 'doc_source/kubernetes-versions.md'
+TEMP_REPO_PATH = '/tmp/eks-docs'
+REGEX = r"^\+ (?P<major>\d+)\\\.(?P<minor>\d+)\\\.(?P<patch>\d+)$"
+
+versions = {}
+
+def add_versions(c_versions, commit):
+  for v in c_versions:
+    if v not in versions:
+      version_string = "%s.%s.%s" % v
+      date = datetime.fromtimestamp(commit.commit_time).strftime('%Y-%m-%d')
+      versions[version_string] = date
+
+def get_versions(markdown):
+  return re.findall(REGEX, markdown, re.MULTILINE)
+
+repo = pygit2.Repository(TEMP_REPO_PATH)
+prev = None
+tree_list = []
+for cur in repo.walk(repo.head.target):
+  if prev is not None:
+    for d in cur.tree.diff_to_tree(prev.tree).deltas:
+      if(d.new_file.path ==  PATH and PATH in cur.tree):
+        contents = cur.tree[PATH].data.decode('UTF-8')
+        add_versions(get_versions(contents), cur)
+
+  if cur.parents:
+    prev = cur
+    cur = cur.parents[0]
+
+with open('releases/eks.json', 'w') as f:
+  f.write(json.dumps(versions, indent=2))
+