test: wip: add yarnrc

Author: jbedard

tests/legacy-cli/e2e/setup/002-npm-sandbox.ts

@@ -1,6 +1,7 @@
 import { mkdir, writeFile } from 'fs/promises';
 import { join } from 'path';
 import { getGlobalVariable, setGlobalVariable } from '../utils/env';
+import { globalYarn } from '../utils/process';
 
 /**
  * Configure npm to use a unique sandboxed environment.
@@ -11,6 +12,7 @@ export default async function () {
   const yarnModulesPrefix = join(tempRoot, 'yarn-global');
   const npmRegistry: string = getGlobalVariable('package-registry');
   const npmrc = join(tempRoot, '.npmrc');
+  const yarnrc = join(tempRoot, '.yarnrc');
 
   // Configure npm to use the sandboxed npm globals and rc file
   // From this point onward all npm transactions use the "global" npm cache
@@ -28,11 +30,16 @@ export default async function () {
 
   // Configure the registry and create the prefix directories
   await writeFile(npmrc, `registry=${npmRegistry}\nprefix=${npmModulesPrefix}`);
+  await writeFile(yarnrc, `registry ${npmRegistry}\nprefix ${yarnModulesPrefix}`);
   await mkdir(npmModulesPrefix);
   await mkdir(yarnModulesPrefix);
 
   setGlobalVariable('npm-global', npmModulesPrefix);
   setGlobalVariable('yarn-global', yarnModulesPrefix);
 
+  console.log('YARN INFO: ');
+  await globalYarn(['config', 'set', 'prefix', '/tmp/foobar']);
+  await globalYarn(['global', 'bin']);
+
   console.log(`  Using "${npmModulesPrefix}" as e2e test global npm cache.`);
 }

tests/legacy-cli/e2e/utils/process.ts

@@ -330,7 +330,7 @@ export function globalYarn(args: string[], env?: NodeJS.ProcessEnv) {
   try {
     process.env.NPM_CONFIG_PREFIX = getGlobalVariable('yarn-global');
 
-    return _exec({ silent: true, env }, 'node', [YARN, ...args]);
+    return _exec({ silent: false, env }, 'node', [YARN, ...args]);
   } finally {
     process.env.NPM_CONFIG_PREFIX = npmPrefix;
   }