Reorganization

scripts/update_changelog.sh

@@ -0,0 +1,80 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+# scripts/update_changelog.sh
+#
+# Purpose:
+# - Apply the MokoWaaS-Brand CHANGELOG template entry for a given version.
+# - Insert a new header at the top of CHANGELOG.md, immediately after "# Changelog".
+# - Avoid duplicates if an entry for the version already exists.
+# - Preserve the rest of the file verbatim.
+#
+# Usage:
+#   ./scripts/update_changelog.sh <VERSION>
+#
+# Example:
+#   ./scripts/update_changelog.sh 01.05.00
+
+VERSION="${1:-}"
+
+if [[ -z "${VERSION}" ]]; then
+  echo "ERROR: Version argument is required. Usage: scripts/update_changelog.sh <VERSION>" >&2
+  exit 1
+fi
+
+CHANGELOG_FILE="CHANGELOG.md"
+
+DATE_UTC="$(date -u +"%Y-%m-%d")"
+HEADER="## ${VERSION} - ${DATE_UTC}"
+
+if [[ ! -f "${CHANGELOG_FILE}" ]]; then
+  {
+    echo "# Changelog"
+    echo
+  } > "${CHANGELOG_FILE}"
+fi
+
+# Do not duplicate existing entries
+if grep -qE "^##[[:space:]]+${VERSION}[[:space:]]+-[[:space:]]+" "${CHANGELOG_FILE}"; then
+  echo "CHANGELOG.md already contains an entry for ${VERSION}. No changes made."
+  exit 0
+fi
+
+TMP_FILE="${CHANGELOG_FILE}.tmp"
+
+# Insert after the first '# Changelog' line.
+# If '# Changelog' is missing, prepend it.
+if grep -qE "^# Changelog$" "${CHANGELOG_FILE}"; then
+  awk -v header="${HEADER}" '
+    BEGIN { inserted=0 }
+    {
+      print
+      if (!inserted && $0 ~ /^# Changelog$/) {
+        print ""
+        print header
+        print ""
+        inserted=1
+      }
+    }
+    END {
+      if (!inserted) {
+        # fallback: append at end
+        print ""
+        print header
+        print ""
+      }
+    }
+  ' "${CHANGELOG_FILE}" > "${TMP_FILE}"
+else
+  {
+    echo "# Changelog"
+    echo
+    echo "${HEADER}"
+    echo
+    cat "${CHANGELOG_FILE}"
+  } > "${TMP_FILE}"
+fi
+
+mv "${TMP_FILE}" "${CHANGELOG_FILE}"
+
+echo "Applied changelog header: ${HEADER}"