[No QA] Create wrapper script to retry prettier without cache

package.json

@@ -51,7 +51,7 @@
     "shellcheck": "./scripts/shellCheck.sh",
     "spell": "cspell --color **/*",
     "spell-changed": "cspell --color --no-must-find-files",
-    "prettier": "prettier --experimental-cli --write .",
+    "prettier": "./scripts/runPrettier.sh",
     "prettier-changed": "prettier --experimental-cli --write --ignore-unknown $(git diff --diff-filter=AMR --name-only origin/main HEAD)",
     "prettier-watch": "onchange \"**/*.{js,mjs,ts,tsx}\" -- prettier --experimental-cli --write --ignore-unknown {{changed}}",
     "print-version": "echo $npm_package_version",

scripts/runPrettier.sh

@@ -0,0 +1,42 @@
+#!/bin/bash
+#
+# Prettier can intermittently fail due to a stale cache. This wrapper runs
+# prettier once, and if it fails, clears the cache and retries.
+
+set -eu
+
+TOP="$(realpath "$(cd -- "$(dirname -- "${BASH_SOURCE[0]}")" &>/dev/null && pwd)/..")"
+readonly TOP
+source "${TOP}/scripts/shellUtils.sh"
+
+declare -r PRETTIER_CACHE_DIR="${TOP}/node_modules/.cache/prettier"
+
+function run_prettier() {
+    npx prettier --experimental-cli --write . "$@"
+}
+
+function clear_cache() {
+    if [[ -d "${PRETTIER_CACHE_DIR}" ]]; then
+        info "Clearing prettier cache at ${PRETTIER_CACHE_DIR}"
+        rm -rf "${PRETTIER_CACHE_DIR}"
+    fi
+}
+
+function main() {
+    if run_prettier "$@"; then
+        success "Prettier finished successfully"
+        return
+    fi
+
+    error "Prettier failed — clearing cache and retrying"
+    clear_cache
+
+    if run_prettier "$@"; then
+        success "Prettier finished successfully after clearing cache"
+    else
+        error "Prettier failed again after clearing cache"
+        exit 1
+    fi
+}
+
+main "$@"