feat(selection): persist validated update preferences atomically

scripts/lib/selection-state.sh

@@ -0,0 +1,22 @@
+#!/usr/bin/env bash
+
+read_update_selection() {
+  local saved key value
+  saved=$(python3 "$root/scripts/lib/selection-state.py" read --home "$home_path" --manifest "$root/adapters/plugins.tsv" --format tsv) || return
+  selected_plugins=()
+  deselected_plugins=()
+  while IFS=$'\t' read -r key value; do
+    value=${value%$'\r'}
+    case "$key" in
+      platform) [ -n "$platform" ] || platform=$value ;;
+      client) [ -n "$client" ] || client=$value ;;
+      selected) selected_plugins+=("$value") ;;
+      deselected) deselected_plugins+=("$value") ;;
+    esac
+  done <<< "$saved"
+}
+
+save_update_selection() {
+  python3 "$root/scripts/lib/selection-state.py" write --home "$home_path" --manifest "$root/adapters/plugins.tsv" \
+    --platform "$platform" --client "$client" --selected "${selected_plugins[@]}" --deselected "${deselected_plugins[@]}"
+}