ci(pipeline): more meta changes to the pipeline

pre-commit install --install-hooks

scripts/hooks/require-commit-body.sh

@@ -0,0 +1,58 @@
+#!/usr/bin/env bash
+
+COMMIT_MSG_FILE="$1"
+
+if [ -z "$COMMIT_MSG_FILE" ]; then
+  echo "require-commit-body: no commit message file supplied" >&2
+  exit 1
+fi
+
+stripped=$(grep -v '^\s*#' "$COMMIT_MSG_FILE" | sed 's/[[:space:]]*$//')
+
+subject=$(echo "$stripped" | sed -n '1p')
+separator=$(echo "$stripped" | sed -n '2p')
+body=$(echo "$stripped" | tail -n +3 | grep -v '^\s*$')
+
+if [ -z "$subject" ]; then
+  echo ""
+  echo "  COMMIT REJECTED: subject line is empty." >&2
+  echo ""
+  exit 1
+fi
+
+if [ -z "$separator" ] && [ -z "$body" ]; then
+  echo ""
+  echo "  COMMIT REJECTED: commit has no body." >&2
+  echo ""
+  echo "  Every commit must explain *why*, not just *what*." >&2
+  echo "  Format:" >&2
+  echo ""
+  echo "    type(scope): short subject" >&2
+  echo ""
+  echo "    Explain the motivation for this change. What problem does" >&2
+  echo "    it solve? Why is this the right approach? Reference any" >&2
+  echo "    relevant issues, prior art, or context." >&2
+  echo ""
+  exit 1
+fi
+
+if [ -n "$separator" ]; then
+  echo ""
+  echo "  COMMIT REJECTED: no blank line between subject and body." >&2
+  echo ""
+  echo "  The second line of a commit message must be blank." >&2
+  echo ""
+  exit 1
+fi
+
+if [ -z "$body" ]; then
+  echo ""
+  echo "  COMMIT REJECTED: commit body is empty." >&2
+  echo ""
+  echo "  Add at least one line after the blank separator explaining" >&2
+  echo "  why this change was made." >&2
+  echo ""
+  exit 1
+fi
+
+exit 0