Fix runPrettier script

src/bin/postinstall/uiModuleMeta.ts

@@ -8,7 +8,7 @@ import { is } from "tsafe/is";
 import { existsAsync } from "../tools/fs.existsAsync";
 import { listInstalledModules } from "../tools/listInstalledModules";
 import { crawlAsync } from "../tools/crawlAsync";
-import { getIsPrettierAvailable, getPrettierAndConfig } from "../tools/runPrettier";
+import { getIsPrettierAvailable, getPrettier } from "../tools/runPrettier";
 import { readThisNpmPackageVersion } from "../tools/readThisNpmPackageVersion";
 import {
     getUiModuleFileSourceCodeReadyToBeCopied,
@@ -100,9 +100,9 @@ export async function getUiModuleMetas(params: {
             return null;
         }
 
-        const { config } = await getPrettierAndConfig();
+        const { configHash } = await getPrettier();
 
-        return crypto.createHash("sha256").update(JSON.stringify(config)).digest("hex");
+        return configHash;
     })();
 
     const installedUiModules = await (async () => {

src/bin/tools/runPrettier.ts

@@ -4,6 +4,7 @@ import * as fsPr from "fs/promises";
 import { id } from "tsafe/id";
 import { assert } from "tsafe/assert";
 import chalk from "chalk";
+import * as crypto from "crypto";
 
 getIsPrettierAvailable.cache = id<boolean | undefined>(undefined);
 
@@ -25,28 +26,42 @@ export async function getIsPrettierAvailable(): Promise<boolean> {
     return isPrettierAvailable;
 }
 
-type PrettierAndConfig = {
+type PrettierAndConfigHash = {
     prettier: typeof import("prettier");
-    config: import("prettier").Options | null;
+    configHash: string;
 };
 
-getPrettierAndConfig.cache = id<PrettierAndConfig | undefined>(undefined);
+getPrettier.cache = id<PrettierAndConfigHash | undefined>(undefined);
 
-export async function getPrettierAndConfig(): Promise<PrettierAndConfig> {
+export async function getPrettier(): Promise<PrettierAndConfigHash> {
     assert(getIsPrettierAvailable());
 
-    if (getPrettierAndConfig.cache !== undefined) {
+    if (getPrettier.cache !== undefined) {
-        return getPrettierAndConfig.cache;
+        return getPrettier.cache;
     }
 
     const prettier = await import("prettier");
 
-    const prettierAndConfig: PrettierAndConfig = {
+    const configHash = await (async () => {
+        const configFilePath = await prettier.resolveConfigFile(
+            pathJoin(getNodeModulesBinDirPath(), "..")
+        );
+
+        if (configFilePath === null) {
+            return "";
+        }
+
+        const data = await fsPr.readFile(configFilePath);
+
+        return crypto.createHash("sha256").update(data).digest("hex");
+    })();
+
+    const prettierAndConfig: PrettierAndConfigHash = {
         prettier,
-        config: await prettier.resolveConfig(pathJoin(getNodeModulesBinDirPath(), ".."))
+        configHash
     };
 
-    getPrettierAndConfig.cache = prettierAndConfig;
+    getPrettier.cache = prettierAndConfig;
 
     return prettierAndConfig;
 }
@@ -60,7 +75,7 @@ export async function runPrettier(params: {
     let formattedSourceCode: string;
 
     try {
-        const { prettier, config } = await getPrettierAndConfig();
+        const { prettier } = await getPrettier();
 
         const { ignored, inferredParser } = await prettier.getFileInfo(filePath, {
             resolveConfig: true
@@ -70,6 +85,8 @@ export async function runPrettier(params: {
             return sourceCode;
         }
 
+        const config = await prettier.resolveConfig(filePath);
+
         formattedSourceCode = await prettier.format(sourceCode, {
             ...config,
             filePath,