perf: add cache-build option and upgrade to v6.2.0

Add `cache-build` input (default: false) to control whether GOCACHE is
included in the cache. This dramatically reduces cache size from ~1.2GB
to ~200-400MB by excluding build artifacts that have low reuse across
code changes.

Also upgrades dependencies (@actions/cache v5, semver v7.7) and runtime
to node24 to align with upstream actions/setup-go.

https://claude.ai/code/session_01CqrWSjzGgd7Zi6LyJkd9XW

__tests__/cache-restore.test.ts

@@ -4,6 +4,7 @@ import * as glob from '@actions/glob';
 
 import * as cacheRestore from '../src/cache-restore';
 import * as cacheUtils from '../src/cache-utils';
+import * as hashdir from '../src/hashdir';
 import {PackageManagerInfo} from '../src/package-managers';
 
 describe('restoreCache', () => {
@@ -21,7 +22,11 @@ describe('restoreCache', () => {
   const packageManager = 'default';
   const cacheDependencyPath = 'path';
 
+  const computeMetaHashSpy = jest.spyOn(hashdir, 'computeMetaHash');
+
   beforeEach(() => {
+    process.env['INPUT_CACHE-BUILD'] = 'false';
+    computeMetaHashSpy.mockReturnValue('mock_build_hash');
     getCacheDirectoryPathSpy.mockImplementation(
       (PackageManager: PackageManagerInfo) => {
         return new Promise<string[]>(resolve => {

action.yml

@@ -15,6 +15,9 @@ inputs:
   cache:
     description: Used to specify whether caching is needed. Set to true, if you'd like to enable caching.
     default: true
+  cache-build:
+    description: 'Whether to cache the Go build cache (GOCACHE) in addition to the module cache (GOMODCACHE). Set to true to include build cache.'
+    default: false
   cache-dependency-path:
     description: 'Used to specify the path to a dependency file - go.sum'
   cache-key-prefix:
@@ -28,7 +31,7 @@ outputs:
   cache-hit:
     description: 'A boolean value to indicate if a cache was hit'
 runs:
-  using: 'node20'
+  using: 'node24'
   main: 'dist/setup/index.js'
   post: 'dist/cache-save/index.js'
   post-if: success()

package.json

@@ -1,6 +1,6 @@
 {
   "name": "setup-go",
-  "version": "5.0.0",
+  "version": "6.2.0",
   "private": true,
   "description": "setup go action",
   "main": "lib/setup-go.js",
@@ -25,18 +25,18 @@
   "author": "GitHub",
   "license": "MIT",
   "dependencies": {
-    "@actions/cache": "^4.0.3",
+    "@actions/cache": "^5.0.1",
     "@actions/core": "^1.11.1",
     "@actions/exec": "^1.1.1",
     "@actions/glob": "^0.5.0",
     "@actions/http-client": "^2.2.1",
     "@actions/io": "^1.0.2",
-    "@actions/tool-cache": "^2.0.1",
+    "@actions/tool-cache": "^2.0.2",
-    "semver": "^7.6.3"
+    "semver": "^7.7.3"
   },
   "devDependencies": {
     "@types/jest": "^29.5.12",
-    "@types/node": "^20.11.28",
+    "@types/node": "^22.15.3",
     "@types/semver": "^7.5.8",
     "@typescript-eslint/eslint-plugin": "^8.31.1",
     "@typescript-eslint/parser": "^8.31.1",

src/cache-restore.ts

@@ -17,8 +17,12 @@ export const restoreCache = async (
   const packageManagerInfo = await getPackageManagerInfo(packageManager);
   const platform = process.env.RUNNER_OS;
   const arch = process.arch;
+  const cacheBuild = core.getBooleanInput('cache-build');
 
-  const cachePaths = await getCacheDirectoryPath(packageManagerInfo);
+  const cachePaths = await getCacheDirectoryPath(
+    packageManagerInfo,
+    cacheBuild
+  );
 
   const dependencyFilePath = cacheDependencyPath
     ? cacheDependencyPath

src/cache-save.ts

@@ -46,8 +46,12 @@ const cachePackages = async () => {
   const prevBuildHash = core.getState(State.CacheBuildHash);
 
   const packageManagerInfo = await getPackageManagerInfo(packageManager);
+  const cacheBuild = core.getBooleanInput('cache-build');
 
-  const cachePaths = await getCacheDirectoryPath(packageManagerInfo);
+  const cachePaths = await getCacheDirectoryPath(
+    packageManagerInfo,
+    cacheBuild
+  );
 
   const nonExistingPaths = cachePaths.filter(
     cachePath => !fs.existsSync(cachePath)
@@ -73,7 +77,8 @@ const cachePackages = async () => {
     return;
   }
 
-  const buildHash = computeMetaHash([cachePaths[1]]);
+  const buildHash =
+    cachePaths.length > 1 ? computeMetaHash([cachePaths[1]]) : '';
 
   if (primaryKey === state && buildHash === prevBuildHash) {
     core.info(

src/cache-utils.ts

@@ -32,12 +32,15 @@ export const getPackageManagerInfo = async (packageManager: string) => {
 };
 
 export const getCacheDirectoryPath = async (
-  packageManagerInfo: PackageManagerInfo
+  packageManagerInfo: PackageManagerInfo,
+  includeBuildCache = true
 ) => {
+  const commands = includeBuildCache
+    ? packageManagerInfo.cacheFolderCommandList
+    : packageManagerInfo.cacheFolderCommandList.slice(0, 1);
+
   const pathOutputs = await Promise.allSettled(
-    packageManagerInfo.cacheFolderCommandList.map(async command =>
+    commands.map(async command => getCommandOutput(command))
-      getCommandOutput(command)
-    )
   );
 
   const results = pathOutputs.map(item => {