chore: use 1 worker in CI

Author: jedwards1211

.circleci/config.yml

@@ -19,13 +19,13 @@ jobs:
           command: pnpm install --frozen-lockfile
       - run:
           name: build
-          command: pnpm prepublishOnly
+          command: ASTX_WORKERS=1 pnpm prepublishOnly
       - run:
           name: upload test coverage
           command: pnpm codecov
       - run:
           name: release
-          command: pnpm semantic-release
+          command: ASTX_WORKERS=1 pnpm semantic-release
 workflows:
   version: 2
   build:

src/cli/transform.ts

@@ -157,7 +157,12 @@ const transform: CommandModule<Options> = {
 
     const interactive = isInteractive()
     const config = (await astxCosmiconfig.search())?.config
-    const workers = argv.workers ?? config?.workers
+    const workers =
+      argv.workers ??
+      (process.env.ASTX_WORKERS
+        ? parseInt(process.env.ASTX_WORKERS)
+        : undefined) ??
+      config?.workers
     const pool =
       workers === 0 ? null : new AstxWorkerPool({ capacity: workers })
     try {