Add scripts to log and process git commit messages

Author: mbridak

parse_gitlog.sh

@@ -0,0 +1,4 @@
+# call git log, requesting just the commit date and commit message and direct the output to a temporary file.
+
+git log --since=$1 --pretty=format:"%ad %s" --date=short > scratch.txt
+python process-scratch.py

process-scratch.py

@@ -0,0 +1,11 @@
+with open("scratch.txt", "r", encoding="utf-8") as fh:
+    prevdate = ""
+    for raw in fh:
+        line = raw.strip()
+        if not line:
+            continue
+        if prevdate != line[0:10]:
+            print(f"- [{line[0:10]}] {line[11:]}")
+        else:
+            print(f"  - {line[11:]}")
+        prevdate = line[0:10]