scripts: add sync-aur-packaging.sh for AUR publishing

Sync PKGBUILD and .SRCINFO from packaging/aur/ into local AUR clones
and optionally push to aur.archlinux.org. No rsync required.

scripts/sync-aur-packaging.sh

@@ -0,0 +1,94 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+ROOT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")/.." && pwd)"
+SRC_BASE="${ROOT_DIR}/packaging/aur"
+
+AUR_BASE_DEFAULT="${HOME}/Projekte/development/current/aur"
+AUR_BASE="${AUR_BASE_DEFAULT}"
+DO_PUSH=0
+
+usage() {
+  cat <<USAGE
+Usage: $(basename "$0") [--aur-base <path>] [--push]
+
+Synchronizes PKGBUILD and .SRCINFO from:
+  ${SRC_BASE}/{bearhub,bearhub-git}
+to local AUR clones:
+  <aur-base>/{bearhub,bearhub-git}
+
+Options:
+  --aur-base <path>  Local directory containing AUR git clones
+                     (default: ${AUR_BASE_DEFAULT})
+  --push             Also run git commit + git push in each AUR repo
+  -h, --help         Show this help
+USAGE
+}
+
+while [[ $# -gt 0 ]]; do
+  case "$1" in
+    --aur-base)
+      AUR_BASE="$2"
+      shift 2
+      ;;
+    --push)
+      DO_PUSH=1
+      shift
+      ;;
+    -h|--help)
+      usage
+      exit 0
+      ;;
+    *)
+      echo "Unknown argument: $1" >&2
+      usage
+      exit 1
+      ;;
+  esac
+done
+
+sync_one() {
+  local pkg="$1"
+  local src_dir="${SRC_BASE}/${pkg}"
+  local dst_dir="${AUR_BASE}/${pkg}"
+
+  if [[ ! -d "${src_dir}" ]]; then
+    echo "[ERROR] Missing source directory: ${src_dir}" >&2
+    exit 1
+  fi
+
+  if [[ ! -d "${dst_dir}/.git" ]]; then
+    echo "[ERROR] Missing AUR git clone: ${dst_dir}" >&2
+    echo "        Clone first: git clone ssh://aur@aur.archlinux.org/${pkg}.git ${dst_dir}" >&2
+    exit 1
+  fi
+
+  for f in PKGBUILD .SRCINFO; do
+    if [[ ! -f "${src_dir}/${f}" ]]; then
+      echo "[ERROR] Missing ${src_dir}/${f}" >&2
+      exit 1
+    fi
+    cp -f "${src_dir}/${f}" "${dst_dir}/${f}"
+  done
+  rm -rf "${dst_dir}/src" "${dst_dir}/pkg"
+
+  if [[ "${DO_PUSH}" -eq 1 ]]; then
+    (
+      cd "${dst_dir}"
+      git add PKGBUILD .SRCINFO
+      if git diff --cached --quiet; then
+        echo "[${pkg}] No changes to commit."
+      else
+        git commit -m "Sync packaging from bearhub main repo"
+        git push
+      fi
+    )
+  else
+    echo "[${pkg}] Synced. Review and push manually in: ${dst_dir}"
+  fi
+}
+
+sync_one "bearhub"
+sync_one "bearhub-git"
+
+echo "Done."