1 files changed, 55 insertions, 0 deletions
diff --git a/archived/projt-launcher/scripts/update-subtrees.sh b/archived/projt-launcher/scripts/update-subtrees.sh
new file mode 100755
index 0000000000..c5601b29b7
--- /dev/null
+++ b/archived/projt-launcher/scripts/update-subtrees.sh
@@ -0,0 +1,55 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+ROOT="$(git rev-parse --show-toplevel)"
+cd "$ROOT"
+
+REMOTE="${REMOTE:-origin}"
+BASE_BRANCH="${BASE_BRANCH:-main}"
+UPDATE_BRANCH="${UPDATE_BRANCH:-chore/update-subtrees}"
+SUBTREES_FILE="${SUBTREES_FILE:-.github/subtrees.txt}"
+
+GIT_USER_NAME="${GIT_USER_NAME:-YongDo-Hyun}"
+GIT_USER_EMAIL="${GIT_USER_EMAIL:-froster12@naver.com}"
+
+git config user.name "$GIT_USER_NAME"
+git config user.email "$GIT_USER_EMAIL"
+
+if [ ! -f "$SUBTREES_FILE" ]; then
+  echo "Missing $SUBTREES_FILE"
+  exit 1
+fi
+
+git fetch "$REMOTE" "$BASE_BRANCH"
+git switch -C "$UPDATE_BRANCH" "$REMOTE/$BASE_BRANCH"
+
+while read -r name path repo branch; do
+  [ -z "${name:-}" ] && continue
+  case "$name" in
+    \#*) continue ;;
+  esac
+  if [ -z "${branch:-}" ]; then
+    branch="main"
+  fi
+
+  # LLVM needs --squash due to its massive unrelated history
+  squash_flag=""
+  if [ "$name" = "llvm" ]; then
+    squash_flag="--squash"
+  fi
+
+  echo "Updating $name ($path) from $repo ($branch)${squash_flag:+ [squash]}"
+  if [ -d "$path" ]; then
+    git subtree pull --prefix="$path" "$repo" "$branch" $squash_flag -m "chore(subtrees): update $name"
+  else
+    git subtree add --prefix="$path" "$repo" "$branch" $squash_flag -m "chore(subtrees): add $name"
+  fi
+done < "$SUBTREES_FILE"
+
+if git diff --quiet "$REMOTE/$BASE_BRANCH"..HEAD --; then
+  echo "No subtree changes detected; not pushing."
+  exit 0
+fi
+
+git push "$REMOTE" "$UPDATE_BRANCH"
+echo "Pushed updates to $REMOTE/$UPDATE_BRANCH"