Sync root metadata

sync_dualsim.sh

@@ -1,37 +1,56 @@
 #!/usr/bin/env bash
 #
-# Sync this local `dualsim` folder to the Hugging Face dataset repo.
+# MIRROR-sync this local `dualsim` folder to the Hugging Face dataset repo.
 #
 #   Repo: https://huggingface.co/datasets/chen-gao/dualsim
 #
-# `hf upload` hashes every file and ONLY uploads files that are new or changed —
-# unchanged files are skipped, so re-running this after edits pushes just the deltas.
-# Each run is a versioned commit on the Hub.
+# Uses `hf upload --delete "*"` per subtree so the Hub becomes an EXACT MIRROR of
+# local: new/changed files are uploaded, and files deleted locally are ALSO deleted
+# on the Hub. `hf upload` hashes files, so unchanged files are skipped (only deltas
+# transfer). Each run is a versioned commit on the Hub.
+#
+# --delete is scoped to each subtree's path_in_repo (verified against
+# huggingface_hub._prepare_folder_deletions: patterns are matched RELATIVE to
+# path_in_repo), so the `eval` sync can never touch `train/` and vice-versa.
 #
 # Usage:
-#   ./sync_dualsim.sh              # sync eval + metadata AND train (110 GB)
-#   ./sync_dualsim.sh eval         # sync only eval + repo metadata (fast)
-#   ./sync_dualsim.sh train        # sync only train/AgiBotWorld2026
+#   ./sync_dualsim.sh              # mirror meta + eval + train
+#   ./sync_dualsim.sh eval         # mirror eval subtree only (fast)
+#   ./sync_dualsim.sh train        # mirror train/AgiBotWorld2026 only
+#   ./sync_dualsim.sh meta         # push root files (README/.gitattributes/this script)
+#   DRY=1 ./sync_dualsim.sh eval   # print what would upload/delete, do nothing
 #
-# Prereq: `hf auth login` (token with write access) done once.
+# Prereq: `hf auth login` (write token) done once.
 
 set -euo pipefail
 
 REPO="chen-gao/dualsim"
 HERE="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
 WHAT="${1:-all}"
-
+DRY="${DRY:-0}"
 hf_bin="$(command -v hf || echo "$HOME/.local/bin/hf")"
 
+run() {
+  if [[ "$DRY" == "1" ]]; then echo "[DRY-RUN] $*"; else "$@"; fi
+}
+
+# Root-level files only (README, .gitattributes, sync script). No --delete here to
+# avoid ever matching the eval/ or train/ subtrees at repo root.
+sync_meta() {
+  echo ">> Uploading root metadata files ..."
+  run "$hf_bin" upload "$REPO" "$HERE" . \
+    --repo-type dataset \
+    --exclude "eval/**" --exclude "train/**" \
+    --exclude ".git/**" --exclude "**/__pycache__/**" --exclude "*.pyc" \
+    --commit-message "Sync root metadata"
+}
+
 sync_eval() {
-  echo ">> Uploading eval + repo metadata (train/** excluded) ..."
-  "$hf_bin" upload "$REPO" "$HERE" . \
+  echo ">> Mirroring eval/ subtree (uploads changes, deletes stale) ..."
+  run "$hf_bin" upload "$REPO" "$HERE/eval" eval \
     --repo-type dataset \
-    --exclude "train/**" \
-    --exclude ".git/**" \
-    --exclude "**/__pycache__/**" \
-    --exclude "*.pyc" \
-    --commit-message "Sync eval + metadata"
+    --delete "*" \
+    --commit-message "Mirror eval"
 }
 
 sync_train() {
@@ -41,17 +60,19 @@ sync_train() {
     echo "!! train/AgiBotWorld2026 does not resolve to a directory ($src) — skipping train." >&2
     return 0
   fi
-  echo ">> Uploading train content from $src -> train/AgiBotWorld2026/ ..."
-  "$hf_bin" upload "$REPO" "$src" train/AgiBotWorld2026 \
+  echo ">> Mirroring train/AgiBotWorld2026 subtree from $src ..."
+  run "$hf_bin" upload "$REPO" "$src" train/AgiBotWorld2026 \
     --repo-type dataset \
-    --commit-message "Sync train/AgiBotWorld2026"
+    --delete "*" \
+    --commit-message "Mirror train/AgiBotWorld2026"
 }
 
 case "$WHAT" in
+  meta)  sync_meta ;;
   eval)  sync_eval ;;
   train) sync_train ;;
-  all)   sync_eval; sync_train ;;
-  *) echo "Usage: $0 [all|eval|train]" >&2; exit 2 ;;
+  all)   sync_meta; sync_eval; sync_train ;;
+  *) echo "Usage: $0 [all|meta|eval|train]  (DRY=1 for dry-run)" >&2; exit 2 ;;
 esac
 
 echo ">> Done. https://huggingface.co/datasets/$REPO"