Upgrade actions/checkout to v5 and actions/setup-go to v6 in README.md

Doing an upgrade for node 24, node 24 is stricter with types so need to add a type for achitecture

.github/workflows/basic-validation.yml

@@ -15,4 +15,4 @@ jobs:
     name: Basic validation
     uses: actions/reusable-workflows/.github/workflows/basic-validation.yml@main
     with:
-      node-version: '20'
+      node-version: '24.x'

.github/workflows/check-dist.yml

@@ -16,4 +16,4 @@ jobs:
     name: Check dist/
     uses: actions/reusable-workflows/.github/workflows/check-dist.yml@main
     with:
-      node-version: '20'
+      node-version: '24.x'

.licenses/npm/@types/node.dep.yml

@@ -1,6 +1,6 @@
 ---
 name: "@types/node"
-version: 20.11.28
+version: 24.1.0
 type: npm
 summary: TypeScript definitions for node
 homepage: https://github.com/DefinitelyTyped/DefinitelyTyped/tree/master/types/node

.licenses/npm/undici-types.dep.yml

@@ -1,15 +1,17 @@
 ---
 name: undici-types
-version: 5.26.5
+version: 7.8.0
 type: npm
 summary: A stand-alone types package for Undici
 homepage: https://undici.nodejs.org
 license: mit
 licenses:
-- sources: Auto-generated MIT license text
+- sources: LICENSE
   text: |
     MIT License
 
+    Copyright (c) Matteo Collina and Undici contributors
+
     Permission is hereby granted, free of charge, to any person obtaining a copy
     of this software and associated documentation files (the "Software"), to deal
     in the Software without restriction, including without limitation the rights

README.md

@@ -50,8 +50,8 @@ Matching by [semver spec](https://github.com/npm/node-semver):
 
 ```yaml
 steps:
-  - uses: actions/checkout@v4
-  - uses: actions/setup-go@v5
+  - uses: actions/checkout@v5
+  - uses: actions/setup-go@v6
     with:
       go-version: '^1.13.1' # The Go version to download (if necessary) and use.
   - run: go version
@@ -59,8 +59,8 @@ steps:
 
 ```yaml
 steps:
-  - uses: actions/checkout@v4
-  - uses: actions/setup-go@v5
+  - uses: actions/checkout@v5
+  - uses: actions/setup-go@v6
     with:
       go-version: '>=1.17.0'
   - run: go version
@@ -78,8 +78,8 @@ Matching an unstable pre-release:
 
 ```yaml
 steps:
-  - uses: actions/checkout@v4
-  - uses: actions/setup-go@v5
+  - uses: actions/checkout@v5
+  - uses: actions/setup-go@v6
     with:
       go-version: '1.18.0-rc.1' # The Go version to download (if necessary) and use.
   - run: go version
@@ -87,8 +87,8 @@ steps:
 
 ```yaml
 steps:
-  - uses: actions/checkout@v4
-  - uses: actions/setup-go@v5
+  - uses: actions/checkout@v5
+  - uses: actions/setup-go@v6
     with:
       go-version: '1.16.0-beta.1' # The Go version to download (if necessary) and use.
   - run: go version
@@ -102,8 +102,8 @@ See [action.yml](action.yml)
 
 ```yaml
 steps:
-  - uses: actions/checkout@v4
-  - uses: actions/setup-go@v5
+  - uses: actions/checkout@v5
+  - uses: actions/setup-go@v6
     with:
       go-version: '1.16.1' # The Go version to download (if necessary) and use.
   - run: go run hello.go
@@ -123,8 +123,8 @@ want the most up-to-date Go version to always be used.
 
 ```yaml
 steps:
-  - uses: actions/checkout@v4
-  - uses: actions/setup-go@v5
+  - uses: actions/checkout@v5
+  - uses: actions/setup-go@v6
     with:
       go-version: '1.14'
       check-latest: true
@@ -144,8 +144,8 @@ set to `true`
 
 ```yaml
 steps:
-  - uses: actions/checkout@v4
-  - uses: actions/setup-go@v5
+  - uses: actions/checkout@v5
+  - uses: actions/setup-go@v6
     with:
       go-version: 'stable'
   - run: go run hello.go
@@ -153,8 +153,8 @@ steps:
 
 ```yaml
 steps:
-  - uses: actions/checkout@v4
-  - uses: actions/setup-go@v5
+  - uses: actions/checkout@v5
+  - uses: actions/setup-go@v6
     with:
       go-version: 'oldstable'
   - run: go run hello.go
@@ -176,8 +176,8 @@ If some problem that prevents success caching happens then the action issues the
 
 ```yaml
 steps:
-  - uses: actions/checkout@v4
-  - uses: actions/setup-go@v5
+  - uses: actions/checkout@v5
+  - uses: actions/setup-go@v6
     with:
       go-version: '1.17'
       check-latest: true
@@ -204,8 +204,8 @@ If both the `go-version` and the `go-version-file` inputs are provided then the
 
 ```yaml
 steps:
-  - uses: actions/checkout@v4
-  - uses: actions/setup-go@v5
+  - uses: actions/checkout@v5
+  - uses: actions/setup-go@v6
     with:
       go-version-file: 'path/to/go.mod'
   - run: go version
@@ -222,9 +222,9 @@ jobs:
         go: [ '1.14', '1.13' ]
     name: Go ${{ matrix.go }} sample
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
       - name: Setup go
-        uses: actions/setup-go@v5
+        uses: actions/setup-go@v6
         with:
           go-version: ${{ matrix.go }}
       - run: go run hello.go
@@ -252,7 +252,7 @@ If that fails as well the action will try to download versions directly from htt
 If that fails as well you can get a higher rate limit with [generating a personal access token on github.com](https://github.com/settings/tokens/new) and passing it as the `token` input to the action:
 
 ```yaml
-uses: actions/setup-go@v5
+uses: actions/setup-go@v6
 with:
   token: ${{ secrets.GH_DOTCOM_TOKEN }}
   go-version: '1.18'

package-lock.json

@@ -1,12 +1,12 @@
 {
   "name": "setup-go",
-  "version": "5.0.0",
+  "version": "6.0.0",
   "lockfileVersion": 3,
   "requires": true,
   "packages": {
     "": {
       "name": "setup-go",
-      "version": "5.0.0",
+      "version": "6.0.0",
       "license": "MIT",
       "dependencies": {
         "@actions/cache": "^4.0.3",
@@ -20,10 +20,10 @@
       },
       "devDependencies": {
         "@types/jest": "^29.5.14",
-        "@types/node": "^20.11.28",
+        "@types/node": "^24.1.0",
         "@types/semver": "^7.5.8",
         "@typescript-eslint/eslint-plugin": "^8.31.1",
-        "@typescript-eslint/parser": "^8.41.0",
+        "@typescript-eslint/parser": "^8.35.1",
         "@vercel/ncc": "^0.38.1",
         "eslint": "^8.57.0",
         "eslint-config-prettier": "^10.0.1",
@@ -35,6 +35,9 @@
         "prettier": "^2.8.4",
         "ts-jest": "^29.3.2",
         "typescript": "^5.8.3"
+      },
+      "engines": {
+        "node": ">=24.0.0"
       }
     },
     "node_modules/@aashutoshrathi/word-wrap": {
@@ -1599,11 +1602,12 @@
       }
     },
     "node_modules/@types/node": {
-      "version": "20.11.28",
-      "resolved": "https://registry.npmjs.org/@types/node/-/node-20.11.28.tgz",
-      "integrity": "sha512-M/GPWVS2wLkSkNHVeLkrF2fD5Lx5UC4PxA0uZcKc6QqbIQUJyW1jVjueJYi1z8n0I5PxYrtpnPnWglE+y9A0KA==",
+      "version": "24.1.0",
+      "resolved": "https://registry.npmjs.org/@types/node/-/node-24.1.0.tgz",
+      "integrity": "sha512-ut5FthK5moxFKH2T1CUOC6ctR67rQRvvHdFLCD2Ql6KXmMuCrjsSsRI9UsLCm9M18BMwClv4pn327UvB7eeO1w==",
+      "license": "MIT",
       "dependencies": {
-        "undici-types": "~5.26.4"
+        "undici-types": "~7.8.0"
       }
     },
     "node_modules/@types/node-fetch": {
@@ -1697,16 +1701,15 @@
       }
     },
     "node_modules/@typescript-eslint/parser": {
-      "version": "8.41.0",
-      "resolved": "https://registry.npmjs.org/@typescript-eslint/parser/-/parser-8.41.0.tgz",
-      "integrity": "sha512-gTtSdWX9xiMPA/7MV9STjJOOYtWwIJIYxkQxnSV1U3xcE+mnJSH3f6zI0RYP+ew66WSlZ5ed+h0VCxsvdC1jJg==",
+      "version": "8.35.1",
+      "resolved": "https://registry.npmjs.org/@typescript-eslint/parser/-/parser-8.35.1.tgz",
+      "integrity": "sha512-3MyiDfrfLeK06bi/g9DqJxP5pV74LNv4rFTyvGDmT3x2p1yp1lOd+qYZfiRPIOf/oON+WRZR5wxxuF85qOar+w==",
       "dev": true,
-      "license": "MIT",
       "dependencies": {
-        "@typescript-eslint/scope-manager": "8.41.0",
-        "@typescript-eslint/types": "8.41.0",
-        "@typescript-eslint/typescript-estree": "8.41.0",
-        "@typescript-eslint/visitor-keys": "8.41.0",
+        "@typescript-eslint/scope-manager": "8.35.1",
+        "@typescript-eslint/types": "8.35.1",
+        "@typescript-eslint/typescript-estree": "8.35.1",
+        "@typescript-eslint/visitor-keys": "8.35.1",
         "debug": "^4.3.4"
       },
       "engines": {
@@ -1718,18 +1721,17 @@
       },
       "peerDependencies": {
         "eslint": "^8.57.0 || ^9.0.0",
-        "typescript": ">=4.8.4 <6.0.0"
+        "typescript": ">=4.8.4 <5.9.0"
       }
     },
     "node_modules/@typescript-eslint/parser/node_modules/@typescript-eslint/scope-manager": {
-      "version": "8.41.0",
-      "resolved": "https://registry.npmjs.org/@typescript-eslint/scope-manager/-/scope-manager-8.41.0.tgz",
-      "integrity": "sha512-n6m05bXn/Cd6DZDGyrpXrELCPVaTnLdPToyhBoFkLIMznRUQUEQdSp96s/pcWSQdqOhrgR1mzJ+yItK7T+WPMQ==",
+      "version": "8.35.1",
+      "resolved": "https://registry.npmjs.org/@typescript-eslint/scope-manager/-/scope-manager-8.35.1.tgz",
+      "integrity": "sha512-s/Bpd4i7ht2934nG+UoSPlYXd08KYz3bmjLEb7Ye1UVob0d1ENiT3lY8bsCmik4RqfSbPw9xJJHbugpPpP5JUg==",
       "dev": true,
-      "license": "MIT",
       "dependencies": {
-        "@typescript-eslint/types": "8.41.0",
-        "@typescript-eslint/visitor-keys": "8.41.0"
+        "@typescript-eslint/types": "8.35.1",
+        "@typescript-eslint/visitor-keys": "8.35.1"
       },
       "engines": {
         "node": "^18.18.0 || ^20.9.0 || >=21.1.0"
@@ -1740,11 +1742,10 @@
       }
     },
     "node_modules/@typescript-eslint/parser/node_modules/@typescript-eslint/types": {
-      "version": "8.41.0",
-      "resolved": "https://registry.npmjs.org/@typescript-eslint/types/-/types-8.41.0.tgz",
-      "integrity": "sha512-9EwxsWdVqh42afLbHP90n2VdHaWU/oWgbH2P0CfcNfdKL7CuKpwMQGjwev56vWu9cSKU7FWSu6r9zck6CVfnag==",
+      "version": "8.35.1",
+      "resolved": "https://registry.npmjs.org/@typescript-eslint/types/-/types-8.35.1.tgz",
+      "integrity": "sha512-q/O04vVnKHfrrhNAscndAn1tuQhIkwqnaW+eu5waD5IPts2eX1dgJxgqcPx5BX109/qAz7IG6VrEPTOYKCNfRQ==",
       "dev": true,
-      "license": "MIT",
       "engines": {
         "node": "^18.18.0 || ^20.9.0 || >=21.1.0"
       },
@@ -1754,16 +1755,15 @@
       }
     },
     "node_modules/@typescript-eslint/parser/node_modules/@typescript-eslint/typescript-estree": {
-      "version": "8.41.0",
-      "resolved": "https://registry.npmjs.org/@typescript-eslint/typescript-estree/-/typescript-estree-8.41.0.tgz",
-      "integrity": "sha512-D43UwUYJmGhuwHfY7MtNKRZMmfd8+p/eNSfFe6tH5mbVDto+VQCayeAt35rOx3Cs6wxD16DQtIKw/YXxt5E0UQ==",
+      "version": "8.35.1",
+      "resolved": "https://registry.npmjs.org/@typescript-eslint/typescript-estree/-/typescript-estree-8.35.1.tgz",
+      "integrity": "sha512-Vvpuvj4tBxIka7cPs6Y1uvM7gJgdF5Uu9F+mBJBPY4MhvjrjWGK4H0lVgLJd/8PWZ23FTqsaJaLEkBCFUk8Y9g==",
       "dev": true,
-      "license": "MIT",
       "dependencies": {
-        "@typescript-eslint/project-service": "8.41.0",
-        "@typescript-eslint/tsconfig-utils": "8.41.0",
-        "@typescript-eslint/types": "8.41.0",
-        "@typescript-eslint/visitor-keys": "8.41.0",
+        "@typescript-eslint/project-service": "8.35.1",
+        "@typescript-eslint/tsconfig-utils": "8.35.1",
+        "@typescript-eslint/types": "8.35.1",
+        "@typescript-eslint/visitor-keys": "8.35.1",
         "debug": "^4.3.4",
         "fast-glob": "^3.3.2",
         "is-glob": "^4.0.3",
@@ -1779,17 +1779,16 @@
         "url": "https://opencollective.com/typescript-eslint"
       },
       "peerDependencies": {
-        "typescript": ">=4.8.4 <6.0.0"
+        "typescript": ">=4.8.4 <5.9.0"
       }
     },
     "node_modules/@typescript-eslint/parser/node_modules/@typescript-eslint/visitor-keys": {
-      "version": "8.41.0",
-      "resolved": "https://registry.npmjs.org/@typescript-eslint/visitor-keys/-/visitor-keys-8.41.0.tgz",
-      "integrity": "sha512-+GeGMebMCy0elMNg67LRNoVnUFPIm37iu5CmHESVx56/9Jsfdpsvbv605DQ81Pi/x11IdKUsS5nzgTYbCQU9fg==",
+      "version": "8.35.1",
+      "resolved": "https://registry.npmjs.org/@typescript-eslint/visitor-keys/-/visitor-keys-8.35.1.tgz",
+      "integrity": "sha512-VRwixir4zBWCSTP/ljEo091lbpypz57PoeAQ9imjG+vbeof9LplljsL1mos4ccG6H9IjfrVGM359RozUnuFhpw==",
       "dev": true,
-      "license": "MIT",
       "dependencies": {
-        "@typescript-eslint/types": "8.41.0",
+        "@typescript-eslint/types": "8.35.1",
         "eslint-visitor-keys": "^4.2.1"
       },
       "engines": {
@@ -1805,7 +1804,6 @@
       "resolved": "https://registry.npmjs.org/brace-expansion/-/brace-expansion-2.0.2.tgz",
       "integrity": "sha512-Jt0vHyM+jmUBqojB7E1NIYadt0vI0Qxjxd2TErW94wDz+E2LAm5vKMXXwg6ZZBTHPuUlDgQHKXvjGBdfcF1ZDQ==",
       "dev": true,
-      "license": "MIT",
       "dependencies": {
         "balanced-match": "^1.0.0"
       }
@@ -1815,7 +1813,6 @@
       "resolved": "https://registry.npmjs.org/eslint-visitor-keys/-/eslint-visitor-keys-4.2.1.tgz",
       "integrity": "sha512-Uhdk5sfqcee/9H/rCOJikYz67o0a2Tw2hGRPOG2Y1R2dg7brRe1uG0yaNQDHu+TO/uQPF/5eCapvYSmHUjt7JQ==",
       "dev": true,
-      "license": "Apache-2.0",
       "engines": {
         "node": "^18.18.0 || ^20.9.0 || >=21.1.0"
       },
@@ -1828,7 +1825,6 @@
       "resolved": "https://registry.npmjs.org/minimatch/-/minimatch-9.0.5.tgz",
       "integrity": "sha512-G6T0ZX48xgozx7587koeX9Ys2NYy6Gmv//P89sEte9V9whIapMNF4idKxnW2QtCcLiTWlb/wfCabAtAFWhhBow==",
       "dev": true,
-      "license": "ISC",
       "dependencies": {
         "brace-expansion": "^2.0.1"
       },
@@ -1840,14 +1836,13 @@
       }
     },
     "node_modules/@typescript-eslint/project-service": {
-      "version": "8.41.0",
-      "resolved": "https://registry.npmjs.org/@typescript-eslint/project-service/-/project-service-8.41.0.tgz",
-      "integrity": "sha512-b8V9SdGBQzQdjJ/IO3eDifGpDBJfvrNTp2QD9P2BeqWTGrRibgfgIlBSw6z3b6R7dPzg752tOs4u/7yCLxksSQ==",
+      "version": "8.35.1",
+      "resolved": "https://registry.npmjs.org/@typescript-eslint/project-service/-/project-service-8.35.1.tgz",
+      "integrity": "sha512-VYxn/5LOpVxADAuP3NrnxxHYfzVtQzLKeldIhDhzC8UHaiQvYlXvKuVho1qLduFbJjjy5U5bkGwa3rUGUb1Q6Q==",
       "dev": true,
-      "license": "MIT",
       "dependencies": {
-        "@typescript-eslint/tsconfig-utils": "^8.41.0",
-        "@typescript-eslint/types": "^8.41.0",
+        "@typescript-eslint/tsconfig-utils": "^8.35.1",
+        "@typescript-eslint/types": "^8.35.1",
         "debug": "^4.3.4"
       },
       "engines": {
@@ -1858,15 +1853,14 @@
         "url": "https://opencollective.com/typescript-eslint"
       },
       "peerDependencies": {
-        "typescript": ">=4.8.4 <6.0.0"
+        "typescript": ">=4.8.4 <5.9.0"
       }
     },
     "node_modules/@typescript-eslint/project-service/node_modules/@typescript-eslint/types": {
-      "version": "8.41.0",
-      "resolved": "https://registry.npmjs.org/@typescript-eslint/types/-/types-8.41.0.tgz",
-      "integrity": "sha512-9EwxsWdVqh42afLbHP90n2VdHaWU/oWgbH2P0CfcNfdKL7CuKpwMQGjwev56vWu9cSKU7FWSu6r9zck6CVfnag==",
+      "version": "8.35.1",
+      "resolved": "https://registry.npmjs.org/@typescript-eslint/types/-/types-8.35.1.tgz",
+      "integrity": "sha512-q/O04vVnKHfrrhNAscndAn1tuQhIkwqnaW+eu5waD5IPts2eX1dgJxgqcPx5BX109/qAz7IG6VrEPTOYKCNfRQ==",
       "dev": true,
-      "license": "MIT",
       "engines": {
         "node": "^18.18.0 || ^20.9.0 || >=21.1.0"
       },
@@ -1894,11 +1888,10 @@
       }
     },
     "node_modules/@typescript-eslint/tsconfig-utils": {
-      "version": "8.41.0",
-      "resolved": "https://registry.npmjs.org/@typescript-eslint/tsconfig-utils/-/tsconfig-utils-8.41.0.tgz",
-      "integrity": "sha512-TDhxYFPUYRFxFhuU5hTIJk+auzM/wKvWgoNYOPcOf6i4ReYlOoYN8q1dV5kOTjNQNJgzWN3TUUQMtlLOcUgdUw==",
+      "version": "8.35.1",
+      "resolved": "https://registry.npmjs.org/@typescript-eslint/tsconfig-utils/-/tsconfig-utils-8.35.1.tgz",
+      "integrity": "sha512-K5/U9VmT9dTHoNowWZpz+/TObS3xqC5h0xAIjXPw+MNcKV9qg6eSatEnmeAwkjHijhACH0/N7bkhKvbt1+DXWQ==",
       "dev": true,
-      "license": "MIT",
       "engines": {
         "node": "^18.18.0 || ^20.9.0 || >=21.1.0"
       },
@@ -1907,7 +1900,7 @@
         "url": "https://opencollective.com/typescript-eslint"
       },
       "peerDependencies": {
-        "typescript": ">=4.8.4 <6.0.0"
+        "typescript": ">=4.8.4 <5.9.0"
       }
     },
     "node_modules/@typescript-eslint/type-utils": {
@@ -5984,9 +5977,10 @@
       }
     },
     "node_modules/undici-types": {
-      "version": "5.26.5",
-      "resolved": "https://registry.npmjs.org/undici-types/-/undici-types-5.26.5.tgz",
-      "integrity": "sha512-JlCMO+ehdEIKqlFxk6IfVoAUVmgz7cU7zD/h9XZ0qzeosSHmUJVOzSQvvYSYWXkFXC+IfLKSIffhv0sVZup6pA=="
+      "version": "7.8.0",
+      "resolved": "https://registry.npmjs.org/undici-types/-/undici-types-7.8.0.tgz",
+      "integrity": "sha512-9UJ2xGDvQ43tYyVMpuHlsgApydB8ZKfVYTsLDhXkFL/6gfkp+U8xTGdh8pMJv1SpZna0zxG1DwsKZsreLbXBxw==",
+      "license": "MIT"
     },
     "node_modules/update-browserslist-db": {
       "version": "1.0.13",

package.json

@@ -1,9 +1,12 @@
 {
   "name": "setup-go",
-  "version": "5.0.0",
+  "version": "6.0.0",
   "private": true,
   "description": "setup go action",
   "main": "lib/setup-go.js",
+  "engines": {
+    "node": ">=24.0.0"
+  },
   "scripts": {
     "build": "tsc && ncc build -o dist/setup src/setup-go.ts && ncc build -o dist/cache-save src/cache-save.ts",
     "format": "prettier --no-error-on-unmatched-pattern --config ./.prettierrc.js --write \"**/*.{ts,yml,yaml}\"",
@@ -36,10 +39,10 @@
   },
   "devDependencies": {
     "@types/jest": "^29.5.14",
-    "@types/node": "^20.11.28",
+    "@types/node": "^24.1.0",
     "@types/semver": "^7.5.8",
     "@typescript-eslint/eslint-plugin": "^8.31.1",
-    "@typescript-eslint/parser": "^8.41.0",
+    "@typescript-eslint/parser": "^8.35.1",
     "@vercel/ncc": "^0.38.1",
     "eslint": "^8.57.0",
     "eslint-config-prettier": "^10.0.1",

src/installer.ts

@@ -7,6 +7,7 @@ import * as sys from './system';
 import fs from 'fs';
 import os from 'os';
 import {StableReleaseAlias, isSelfHosted} from './utils';
+import {Architecture} from './types';
 
 const MANIFEST_REPO_OWNER = 'actions';
 const MANIFEST_REPO_NAME = 'go-versions';
@@ -39,7 +40,7 @@ export async function getGo(
   versionSpec: string,
   checkLatest: boolean,
   auth: string | undefined,
-  arch = os.arch()
+  arch: Architecture = os.arch() as Architecture
 ) {
   let manifest: tc.IToolRelease[] | undefined;
   const osPlat: string = os.platform();
@@ -151,7 +152,7 @@ async function resolveVersionFromManifest(
   versionSpec: string,
   stable: boolean,
   auth: string | undefined,
-  arch: string,
+  arch: Architecture,
   manifest: tc.IToolRelease[] | undefined
 ): Promise<string | undefined> {
   try {
@@ -353,7 +354,7 @@ export async function getInfoFromManifest(
   versionSpec: string,
   stable: boolean,
   auth: string | undefined,
-  arch = os.arch(),
+  arch: Architecture = os.arch() as Architecture,
   manifest?: tc.IToolRelease[] | undefined
 ): Promise<IGoVersionInfo | null> {
   let info: IGoVersionInfo | null = null;
@@ -379,7 +380,7 @@ export async function getInfoFromManifest(
 
 async function getInfoFromDist(
   versionSpec: string,
-  arch: string
+  arch: Architecture
 ): Promise<IGoVersionInfo | null> {
   const version: IGoVersion | undefined = await findMatch(versionSpec, arch);
   if (!version) {
@@ -398,7 +399,7 @@ async function getInfoFromDist(
 
 export async function findMatch(
   versionSpec: string,
-  arch = os.arch()
+  arch: Architecture = os.arch() as Architecture
 ): Promise<IGoVersion | undefined> {
   const archFilter = sys.getArch(arch);
   const platFilter = sys.getPlatform();
@@ -502,7 +503,10 @@ export function parseGoVersionFile(versionFilePath: string): string {
   return contents.trim();
 }
 
-async function resolveStableVersionDist(versionSpec: string, arch: string) {
+async function resolveStableVersionDist(
+  versionSpec: string,
+  arch: Architecture
+) {
   const archFilter = sys.getArch(arch);
   const platFilter = sys.getPlatform();
   const dlUrl = 'https://golang.org/dl/?mode=json&include=all';

src/main.ts

@@ -8,6 +8,7 @@ import {isCacheFeatureAvailable} from './cache-utils';
 import cp from 'child_process';
 import fs from 'fs';
 import os from 'os';
+import {Architecture} from './types';
 
 export async function run() {
   try {
@@ -20,10 +21,10 @@ export async function run() {
     const cache = core.getBooleanInput('cache');
     core.info(`Setup go version spec ${versionSpec}`);
 
-    let arch = core.getInput('architecture');
+    let arch = core.getInput('architecture') as Architecture;
 
     if (!arch) {
-      arch = os.arch();
+      arch = os.arch() as Architecture;
     }
 
     if (versionSpec) {

src/system.ts

@@ -1,4 +1,5 @@
 import os from 'os';
+import {Architecture} from './types';
 
 export function getPlatform(): string {
   // darwin and linux match already
@@ -15,7 +16,7 @@ export function getPlatform(): string {
   return plat;
 }
 
-export function getArch(arch: string): string {
+export function getArch(arch: Architecture): string {
   // 'arm', 'arm64', 'ia32', 'mips', 'mipsel', 'ppc', 'ppc64', 's390', 's390x', 'x32', and 'x64'.
 
   // wants amd64, 386, arm64, armv61, ppc641e, s390x

src/types.ts

@@ -0,0 +1,2 @@
+// match what @actions/tool-cache expects
+export type Architecture = string;