feat(jest-config): add support for inline snapshots

.syncpackrc.cjs

@@ -1,5 +1,13 @@
-const config = require('@repodog/syncpack-config');
+const { versionGroups, ...rest } = require('@repodog/syncpack-config');
 
 module.exports = {
-  ...config,
+  ...rest,
+  versionGroups: [
+    {
+      dependencies: ['prettier'],
+      isIgnored: true,
+      packages: ['@repodog/jest-config'],
+    },
+    ...versionGroups,
+  ],
 };

configs/jest-config/README.md

@@ -121,6 +121,20 @@ module.exports = {
 }
 ```
 
+### Inline snapshots
+
+The config includes `prettier@^2` as a dependency so you can continue to use Jest inline snapshots without much additional configuration. All that is needed is to add a `.prettierrc` to the root of your project. This file will not conflict with the `prettier.config.mjs` file used by `@repodog/eslint-config` to format the rest of your code.
+
+```jsonc
+// .prettierrc
+{
+  "arrowParens": "avoid",
+  "printWidth": 120,
+  "singleQuote": true,
+  "trailingComa": "all"
+}
+```
+
 ### Environment variables
 
 #### `COMPILER` = `'babel' || 'swc'`

configs/jest-config/index.cjs

@@ -82,6 +82,7 @@ const config = ({ compilerOptions = {} } = {}) => {
     extensionsToTreatAsEsm: isCjs ? [] : ['.jsx', '.ts', '.tsx'],
     moduleFileExtensions: ['ts', 'tsx', 'js', 'mjs', 'cjs', 'jsx', 'json'],
     moduleNameMapper,
+    prettierPath: require.resolve('prettier'),
     rootDir: packageDir,
     testEnvironment: isJsEnvWeb ? 'jsdom' : 'node',
     testMatch,

configs/jest-config/package.json

@@ -16,7 +16,8 @@
     "access": "public"
   },
   "dependencies": {
-    "identity-obj-proxy": "^3.0.0"
+    "identity-obj-proxy": "^3.0.0",
+    "prettier": "^2.8.8"
   },
   "peerDependencies": {
     "@jest/globals": "<30",

package.json

@@ -84,4 +84,4 @@
       "ws": ">=8.17.1"
     }
   }
-}
+}