Added option to enable corepack (#1)

Co-authored-by: Steven <steven@ceriously.com>
Co-authored-by: Sayak Mukhopadhyay <mukhopadhyaysayak@gmail.com>
Co-authored-by: Jacob Parish <jacob.parish.1@gmail.com>

src/main.ts

@@ -8,7 +8,11 @@ import * as path from 'path';
 import {restoreCache} from './cache-restore';
 import {isCacheFeatureAvailable} from './cache-utils';
 import {getNodejsDistribution} from './distributions/installer-factory';
-import {parseNodeVersionFile, printEnvDetailsAndSetOutput} from './util';
+import {
+  parseNodeVersionFile,
+  printEnvDetailsAndSetOutput,
+  enableCorepack
+} from './util';
 import {State} from './constants';
 
 export async function run() {
@@ -60,6 +64,9 @@ export async function run() {
       auth.configAuthentication(registryUrl, alwaysAuth);
     }
 
+    const corepack = core.getInput('corepack') || 'false';
+    await enableCorepack(corepack);
+
     if (cache && isCacheFeatureAvailable()) {
       core.saveState(State.CachePackageManager, cache);
       const cacheDependencyPath = core.getInput('cache-dependency-path');

src/util.ts

@@ -70,3 +70,16 @@ export const unique = () => {
     return true;
   };
 };
+
+export async function enableCorepack(input: string): Promise<void> {
+  const corepackArgs = ['enable'];
+  if (input.length > 0 && input !== 'false') {
+    if (input !== 'true') {
+      const packageManagers = input.split(' ');
+      corepackArgs.push(...packageManagers);
+    }
+    await exec.getExecOutput('corepack', corepackArgs, {
+      ignoreReturnCode: true
+    });
+  }
+}