Add script to parse dependabot commits

parse_dependabot.py

@@ -0,0 +1,30 @@
+#!/usr/bin/env python3
+
+import re
+import sys
+
+import subprocess
+
+if len(sys.argv) <= 1:
+    print("Please supply the ref as the first parameter")
+    sys.exit(1)
+
+proc = subprocess.run(f'git log {sys.argv[1]}..HEAD --author="dependabot\[bot\]" --grep="^Bump" --oneline --no-decorate', shell=True, stdout=subprocess.PIPE, text=True)
+lines = sorted(proc.stdout.splitlines())
+
+warnings = []
+output = []
+
+p = re.compile(r"Bump ([a-zA-Z\/\-\_0-9]+) from ([0-9\.]+) to ([0-9\.]+)")
+for (line, match) in map(lambda line:  (line, p.search(line)), lines):
+    if not match:
+        warnings.append(line)
+
+    name, old, new = match.group(1,2,3)
+    output.append(f"- Update {name} from {old} to {new}.")
+
+print(*sorted(set(output)), sep="\n")
+
+if warnings:
+    print("Could not parse these lines")
+    print(*warnings, sep="\n")