chore: add Cloudron PackageTemplate, helper script; add .gitattributes/.editorconfig; refine .gitignore; improve workspace scripts

PackagingForCloudronWorkspace/UpstreamVendor-Update.sh

@@ -27,18 +27,21 @@ set -o nounset
 set -o pipefail
 set -o functrace
 
+WORKDIR="$(cd "$(dirname "$0")" && pwd)"
+TARGET_DIR="${WORKDIR}/Docker"
 
-cd Docker
+cd "$TARGET_DIR"
 
-GIT_REPO_LIST="$(ls -d */)"
-
-IFS=$'\n\t'
-
-for GIT_REPO in ${GIT_REPO_LIST[@]};
-do
-  CURRENT_DIR=$(realpath $PWD)
-  echo "Updating from $GIT_REPO..."
-  cd $GIT_REPO 
-  git pull
-  cd $CURRENT_DIR
-done
+# Iterate only over directories that are git repos
+while IFS= read -r -d '' repo_dir; do
+  echo "Updating: ${repo_dir}"
+  pushd "$repo_dir" >/dev/null
+  if [[ -d .git ]]; then
+    git -c advice.detachedHead=false fetch --all --prune || true
+    # Fast-forward only to avoid unintended merges
+    git -c advice.detachedHead=false pull --ff-only || true
+  else
+    echo "Skipping (not a git repo): ${repo_dir}"
+  fi
+  popd >/dev/null
+done < <(find . -mindepth 1 -maxdepth 1 -type d -print0)