Remove cached lockfile

To go along with #11474, we no longer need the cached lockfile after unpinning all the dependencies.

This PR should removes all references to it in the creation of new projects and the tests.

CONTRIBUTING.md

@@ -145,7 +145,7 @@ By default git would use `CRLF` line endings which would cause the scripts to fa
 2. Close the milestone and create a new one for the next release.
 3. In most releases, only `react-scripts` needs to be released. If you don’t have any changes to the `packages/create-react-app` folder, you don’t need to bump its version or publish it (the publish script will publish only changed packages).
 4. Note that files in `packages/create-react-app` should be modified with extreme caution. Since it’s a global CLI, any version of `create-react-app` (global CLI) including very old ones should work with the latest version of `react-scripts`.
-5. Pull the latest changes from GitHub, run `npm ci` and then `npm run compile:lockfile`. The command will generate an updated lockfile in `packages/create-react-app` that should be committed.
+5. Pull the latest changes from GitHub, run `npm ci`.
 6. Create a change log entry for the release:
 
 - You'll need an [access token for the GitHub API](https://help.github.com/articles/creating-an-access-token-for-command-line-use/). Save it to this environment variable: `export GITHUB_AUTH="..."`

package.json

@@ -17,8 +17,7 @@
     "alex": "alex .",
     "test:integration": "jest test/integration",
     "test": "cd packages/react-scripts && node bin/react-scripts.js test",
-    "format": "prettier --write 'packages/*/*.js' 'packages/*/!(node_modules)/**/*.js'",
-    "compile:lockfile": "node tasks/compile-lockfile.js"
+    "format": "prettier --write 'packages/*/*.js' 'packages/*/!(node_modules)/**/*.js'"
   },
   "devDependencies": {
     "@testing-library/jest-dom": "^5.11.4",

packages/create-react-app/createReactApp.js

@@ -325,23 +325,6 @@ function createApp(name, verbose, version, template, useYarn, usePnp) {
     }
   }
 
-  if (useYarn) {
-    let yarnUsesDefaultRegistry = true;
-    try {
-      yarnUsesDefaultRegistry =
-        execSync('yarnpkg config get registry').toString().trim() ===
-        'https://registry.yarnpkg.com';
-    } catch (e) {
-      // ignore
-    }
-    if (yarnUsesDefaultRegistry) {
-      fs.copySync(
-        require.resolve('./yarn.lock.cached'),
-        path.join(root, 'yarn.lock')
-      );
-    }
-  }
-
   run(
     root,
     appName,
@@ -540,11 +523,7 @@ function run(
         console.log();
 
         // On 'exit' we will delete these files from target directory.
-        const knownGeneratedFiles = [
-          'package.json',
-          'yarn.lock',
-          'node_modules',
-        ];
+        const knownGeneratedFiles = ['package.json', 'node_modules'];
         const currentFiles = fs.readdirSync(path.join(root));
         currentFiles.forEach(file => {
           knownGeneratedFiles.forEach(fileToMatch => {

packages/create-react-app/package.json

@@ -19,8 +19,7 @@
   },
   "files": [
     "index.js",
-    "createReactApp.js",
-    "yarn.lock.cached"
+    "createReactApp.js"
   ],
   "bin": {
     "create-react-app": "./index.js"

tasks/publish.sh

@@ -26,10 +26,6 @@ set -x
 cd ..
 root_path=$PWD
 
-if [ -z $CI ]; then
-  npm run compile:lockfile
-fi
-
 if [ -n "$(git status --porcelain)" ]; then
   echo "Your git status is not clean. Aborting.";
   exit 1;