refactor(dev): rewrite replace-remix-magic-exports as a babel codemod

Compared to the previous jscodeshift-based migration:
- codemod no longer depends on a network connection
- babel's visitor API for traversing the AST is simpler
- not spinning up workers for applying code transforms

This ends up speeding up the codemod by ~10x and (hopefully 🤞) fixes
some of the issues we were seeing in CI on Windows (since we think
problems are mostly timeouts caused by slow tests or overhead for
workers).

packages/remix-dev/__tests__/cli-test.ts

@@ -99,7 +99,7 @@ describe("remix CLI", () => {
             $ remix routes [projectDir]
             $ remix watch [projectDir]
             $ remix setup [remixPlatform]
-            $ remix migrate [-m migration] [projectDir]
+            $ remix codemod <codemod> [projectDir]
 
           Options:
             --help, -h          Print this help message and exit
@@ -119,17 +119,14 @@ describe("remix CLI", () => {
             --no-delete         Skip deleting the \`remix.init\` script
           \`routes\` Options:
             --json              Print the routes as JSON
-          \`migrate\` Options:
-            --debug             Show debugging logs
+          \`codemod\` Options:
             --dry               Dry run (no changes are made to files)
-            --force             Bypass Git safety checks and forcibly run migration
-            --migration, -m     Name of the migration to run
+            --force             Bypass Git safety checks
 
           Values:
             - projectDir        The Remix project directory
             - template          The project template to use
             - remixPlatform     \`node\` or \`cloudflare\`
-            - migration         One of the choices from https://github.com/remix-run/remix/blob/main/packages/remix-dev/cli/migrate/migrations/index.ts
 
           Creating a new project:
 

packages/remix-dev/cli/commands.ts

@@ -22,8 +22,9 @@ import { log } from "../logging";
 import { createApp } from "./create";
 import { getPreferredPackageManager } from "./getPreferredPackageManager";
 import { setupRemix, isSetupPlatform, SetupPlatform } from "./setup";
-
-export * as migrate from "./migrate";
+import runCodemod from "../codemod";
+import { CodemodError } from "../codemod/utils/error";
+import { TaskError } from "../codemod/utils/task";
 
 export async function create({
   appTemplate,
@@ -340,6 +341,41 @@ export async function dev(
   }
 }
 
+export async function codemod(
+  codemodName?: string,
+  projectDir?: string,
+  { dry = false, force = false } = {}
+) {
+  if (!codemodName) {
+    console.error(colors.red("Error: Missing codemod name"));
+    console.log(
+      "Usage: " +
+        colors.gray(
+          `remix codemod <${colors.arg("codemod")}> [${colors.arg(
+            "projectDir"
+          )}]`
+        )
+    );
+    process.exit(1);
+  }
+  try {
+    await runCodemod(projectDir ?? process.cwd(), codemodName, {
+      dry,
+      force,
+    });
+  } catch (error) {
+    if (error instanceof CodemodError) {
+      console.error(`${colors.red("Error:")} ${error.message}`);
+      if (error.additionalInfo) console.info(colors.gray(error.additionalInfo));
+      process.exit(1);
+    }
+    if (error instanceof TaskError) {
+      process.exit(1);
+    }
+    throw error;
+  }
+}
+
 function purgeAppRequireCache(buildPath: string) {
   for (let key in require.cache) {
     if (key.startsWith(buildPath)) {