refactor: restore root layout and split mysql config

tools/init_runtime_data.sh

@@ -0,0 +1,67 @@
+#!/bin/sh
+set -eu
+
+APP_ROOT="${APP_ROOT:-/app}"
+DATA_ROOT="${MOBILEMODELS_DATA_ROOT:-/data}"
+
+mkdir -p "$DATA_ROOT" "$DATA_ROOT/state"
+
+sync_missing_dir_entries() {
+  src_dir="$1"
+  dst_dir="$2"
+
+  mkdir -p "$dst_dir"
+
+  for src_entry in "$src_dir"/*; do
+    [ -e "$src_entry" ] || continue
+    name="$(basename "$src_entry")"
+    dst_entry="$dst_dir/$name"
+
+    if [ -d "$src_entry" ]; then
+      sync_missing_dir_entries "$src_entry" "$dst_entry"
+      continue
+    fi
+
+    if [ ! -e "$dst_entry" ] && [ ! -L "$dst_entry" ]; then
+      mkdir -p "$(dirname "$dst_entry")"
+      cp -a "$src_entry" "$dst_entry"
+    fi
+  done
+}
+
+init_path() {
+  rel_path="$1"
+  src_path="$APP_ROOT/$rel_path"
+  dst_path="$DATA_ROOT/$rel_path"
+
+  if [ -d "$src_path" ]; then
+    if [ ! -e "$dst_path" ] && [ ! -L "$dst_path" ]; then
+      mkdir -p "$(dirname "$dst_path")"
+      cp -a "$src_path" "$dst_path"
+    else
+      sync_missing_dir_entries "$src_path" "$dst_path"
+    fi
+  elif [ ! -e "$dst_path" ] && [ ! -L "$dst_path" ]; then
+    mkdir -p "$(dirname "$dst_path")"
+    cp -a "$src_path" "$dst_path"
+  fi
+
+  if [ -L "$src_path" ]; then
+    current_target="$(readlink "$src_path" || true)"
+    if [ "$current_target" = "$dst_path" ]; then
+      return
+    fi
+    rm -f "$src_path"
+  else
+    rm -rf "$src_path"
+  fi
+
+  ln -s "$dst_path" "$src_path"
+}
+
+for rel_path in \
+  workspace \
+  dist
+do
+  init_path "$rel_path"
+done