github/update_ansible.py: easier updating of requirements

Using the normal python YAML module breaks formatting and order of entries.

Signed-off-by: Jakub Sokołowski <jakub@status.im>

github/update_ansible.py

@@ -0,0 +1,74 @@
+#!/usr/bin/env python3
+# I could use yaml module, but it fucks ups the order and formatting.
+import re
+from os.path import isdir, expanduser
+from subprocess import check_output
+
+path = 'ansible/requirements.yml'
+
+with open(path, 'r') as f:
+    contents = f.readlines()
+
+# Read file
+lines = iter(contents) 
+entries = []
+for line in lines:
+    matches = re.match('- name: (.*)', line)
+    if not matches:
+        continue
+    name = matches.group(1)
+
+    matches = re.match('  src: (.*)', next(lines))
+    if not matches:
+        continue
+    src = matches.group(1)
+
+    matches = re.match('^git@github.com:[^/]+/(.+).git$', src)
+    if not matches:
+        raise Exception('Unable to find full repo name!')
+    full_name = matches.group(1)
+
+    matches = re.match('  version: (.*)', next(lines))
+    if not matches:
+        continue
+    version = matches.group(1)
+
+    matches = re.match('  scm: (.*)', next(lines))
+    if not matches:
+        continue
+    scm = matches.group(1)
+
+    entries.append({
+        'name': name,
+        'full_name': full_name,
+        'src': src,
+        'version': version,
+        'scm': scm,
+    })
+
+# Read commits from repos
+for entry in entries:
+    cwd = expanduser('~/work/%s' % entry['full_name'])
+    if not isdir(cwd):
+        print('No such repo: %s' % cwd)
+        continue
+    commit = check_output(['git', 'rev-parse', 'HEAD'], cwd=cwd)
+    new_version = commit.decode().strip()
+    if new_version != entry['version']:
+        entry['version'] = new_version
+        print('Updated: %s - %s' % (new_version, entry['full_name']))
+
+lines = ['---\n']
+for entry in entries:
+    lines.extend([
+        ('- name: %s\n'    % entry['name']),
+        ('  src: %s\n'     % entry['src']),
+        ('  version: %s\n' % entry['version']),
+        ('  scm: %s\n'     % entry['scm']),
+        '\n',
+    ])
+
+
+# Write file
+with open(path, 'w') as f:
+    contents = f.writelines(lines[:-1])