Clear and verify npm cache

.github/ISSUE_TEMPLATE/bugReportForm.yml

@@ -1,36 +0,0 @@
-name: Bug Report
-description: File a bug report specifying all inputs you provided for the action, we will respond to this thread with any questions.
-title: 'Bug: '
-labels: ['bug', 'triage']
-assignees: '@Azure/aks-atlanta'
-body:
-   - type: textarea
-     id: What-happened
-     attributes:
-        label: What happened?
-        description: Tell us what happened and how is it different from the expected?
-        placeholder: Tell us what you see!
-     validations:
-        required: true
-   - type: checkboxes
-     id: Version
-     attributes:
-        label: Version
-        options:
-           - label: I am using the latest version
-             required: true
-   - type: input
-     id: Runner
-     attributes:
-        label: Runner
-        description: What runner are you using?
-        placeholder: Mention the runner info (self-hosted, operating system)
-     validations:
-        required: true
-   - type: textarea
-     id: Logs
-     attributes:
-        label: Relevant log output
-        description: Run in debug mode for the most verbose logs. Please feel free to attach a screenshot of the logs
-     validations:
-        required: true

.github/ISSUE_TEMPLATE/config.yml

@@ -1,6 +0,0 @@
-blank_issues_enabled: false
-contact_links:
-   - name: GitHub Action "setup-helm" Support
-     url: https://github.com/Azure/setup-helm
-     security: https://github.com/Azure/setup-helm/blob/main/SECURITY.md
-     about: Please ask and answer questions here.

.github/ISSUE_TEMPLATE/featureRequestForm.yml

@@ -1,13 +0,0 @@
-name: Feature Request
-description: File a Feature Request form, we will respond to this thread with any questions.
-title: 'Feature Request: '
-labels: ['Feature']
-assignees: '@Azure/aks-atlanta'
-body:
-   - type: textarea
-     id: Feature_request
-     attributes:
-        label: Feature request
-        description: Provide example functionality and links to relevant docs
-     validations:
-        required: true

.github/workflows/defaultLabels.yml

@@ -13,7 +13,7 @@ jobs:
 
       # Steps represent a sequence of tasks that will be executed as part of the job
       steps:
-         - uses: actions/stale@v9
+         - uses: actions/stale@v3
            name: Setting issue as idle
            with:
               repo-token: ${{ secrets.GITHUB_TOKEN }}
@@ -24,7 +24,7 @@ jobs:
               operations-per-run: 100
               exempt-issue-labels: 'backlog'
 
-         - uses: actions/stale@v9
+         - uses: actions/stale@v3
            name: Setting PR as idle
            with:
               repo-token: ${{ secrets.GITHUB_TOKEN }}

.github/workflows/integration-tests.yml

@@ -15,7 +15,7 @@ jobs:
          PR_BASE_REF: ${{ github.event.pull_request.base.ref }}
       steps:
          - name: Check out repository
-           uses: actions/checkout@v4
+           uses: actions/checkout@v2
          - name: npm install and build
            id: action-npm-build
            run: |
@@ -63,25 +63,3 @@ jobs:
               else
                 echo "HELM VERSION $HELM_3_5_0 INSTALLED SUCCESSFULLY"
               fi
-         - name: Setup helm latest version
-           uses: ./
-           with:
-              version: latest
-              token: ${{ secrets.GITHUB_TOKEN }}
-         - name: Validate latest
-           env:
-              GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
-           run: |
-              HELM_LATEST=$(gh release list \
-                --repo helm/helm \
-                --exclude-drafts \
-                --exclude-pre-releases \
-                --limit 1 | awk '{print $4}')
-
-              if [[ $(helm version) != *$HELM_LATEST* ]]; then
-                echo "HELM VERSION INCORRECT: HELM VERSION DOES NOT CONTAIN $HELM_LATEST"
-                echo "HELM VERSION OUTPUT: $(helm version)"
-                exit 1
-              else
-                echo "HELM VERSION $HELM_LATEST INSTALLED SUCCESSFULLY"
-              fi

.github/workflows/prettify-code.yml

@@ -10,9 +10,9 @@ jobs:
       runs-on: ubuntu-latest
       steps:
          - name: Checkout Repository
-           uses: actions/checkout@v4
+           uses: actions/checkout@v2
 
          - name: Enforce Prettier
-           uses: actionsx/prettier@v3
+           uses: actionsx/prettier@v2
            with:
               args: --check .

.github/workflows/release-pr.yml

@@ -1,18 +1,14 @@
-name: Release Project
+name: Create release PR
 
 on:
-   push:
-      branches:
-         - main
-      paths:
-         - CHANGELOG.md
    workflow_dispatch:
+      inputs:
+         release:
+            description: 'Define release version (ex: v1, v2, v3)'
+            required: true
 
 jobs:
-   release:
-      permissions:
-         actions: read
-         contents: write
-      uses: Azure/action-release-workflows/.github/workflows/release_js_project.yaml@v1
+   release-pr:
+      uses: OliverMKing/javascript-release-workflow/.github/workflows/release-pr.yml@main
       with:
-         changelogPath: ./CHANGELOG.md
+         release: ${{ github.event.inputs.release }}

.github/workflows/unit-tests.yml

@@ -13,7 +13,7 @@ jobs:
    build: # make sure build/ci works properly
       runs-on: ubuntu-latest
       steps:
-         - uses: actions/checkout@v4
+         - uses: actions/checkout@v1
 
          - name: Run L0 tests.
            run: |

CHANGELOG.md

@@ -1,13 +0,0 @@
-# Change Log
-
-## [4.2.0] - 2024-04-15
-
--  #124 Fix OS detection and download OS-native archive extension
-
-## [4.1.0] - 2024-03-01
-
--  #130 switches to use Helm published file to read latest version instead of using GitHub releases
-
-## [4.0.0] - 2024-02-12
-
--  #121 update to node20 as node16 is deprecated

README.md

@@ -4,22 +4,19 @@ Install a specific version of helm binary on the runner.
 
 ## Example
 
-Acceptable values are latest or any semantic version string like v3.5.0 Use this action in workflow to define which version of helm will be used. v2+ of this action only support Helm3.
+Acceptable values are latest or any semantic version string like v3.5.0 Use this action in workflow to define which version of helm will be used. v2 and v3 of this action only supports Helm3.
 
 ```yaml
-- uses: azure/setup-helm@v4.2.0
+- uses: azure/setup-helm@v3
   with:
-     version: '<version>' # default is latest (stable)
+     version: '<version>' # default is latest stable
   id: install
 ```
 
-> [!NOTE]
-> If something goes wrong with fetching the latest version the action will use the hardcoded default stable version (currently v3.13.3). If you rely on a certain version higher than the default, you should explicitly use that version instead of latest.
-
 The cached helm binary path is prepended to the PATH environment variable as well as stored in the helm-path output variable.
 Refer to the action metadata file for details about all the inputs https://github.com/Azure/setup-helm/blob/master/action.yml
 
-## Contributing
+# Contributing
 
 This project welcomes contributions and suggestions. Most contributions require you to agree to a
 Contributor License Agreement (CLA) declaring that you have the right to, and actually do, grant us
@@ -32,7 +29,3 @@ provided by the bot. You will only need to do this once across all repos using o
 This project has adopted the [Microsoft Open Source Code of Conduct](https://opensource.microsoft.com/codeofconduct/).
 For more information see the [Code of Conduct FAQ](https://opensource.microsoft.com/codeofconduct/faq/) or
 contact [opencode@microsoft.com](mailto:opencode@microsoft.com) with any additional questions or comments.
-
-## Support
-
-setup-helm is an open source project that is [**not** covered by the Microsoft Azure support policy](https://support.microsoft.com/en-us/help/2941892/support-for-linux-and-open-source-technology-in-azure). [Please search open issues here](https://github.com/Azure/setup-helm/issues), and if your issue isn't already represented please [open a new one](https://github.com/Azure/setup-helm/issues/new/choose). The project maintainers will respond to the best of their abilities.

action.yml

@@ -5,20 +5,11 @@ inputs:
       description: 'Version of helm'
       required: true
       default: 'latest'
-   token:
-      description: GitHub token. Used to be required to fetch the latest version
-      required: false
-      deprecationMessage: 'GitHub token is no longer required'
-      default: '${{ github.token }}'
-   downloadBaseURL:
-      description: 'Set the download base URL'
-      required: false
-      default: 'https://get.helm.sh'
 outputs:
    helm-path:
       description: 'Path to the cached helm binary'
 branding:
    color: 'blue'
 runs:
-   using: 'node20'
+   using: 'node16'
    main: 'lib/index.js'

package.json

@@ -1,21 +1,20 @@
 {
    "name": "setuphelm",
-   "version": "4.2.0",
+   "version": "0.0.0",
    "private": true,
    "description": "Setup helm",
    "author": "Anumita Shenoy",
    "license": "MIT",
    "dependencies": {
-      "@actions/core": "^1.10.0",
-      "@actions/exec": "^1.1.1",
-      "@actions/io": "^1.1.2",
-      "@actions/tool-cache": "2.0.1",
-      "@octokit/action": "^6.0.7",
-      "semver": "^7.5.4"
+      "@actions/core": "^1.2.6",
+      "@actions/exec": "^1.0.0",
+      "@actions/io": "^1.0.0",
+      "@actions/tool-cache": "1.1.2",
+      "@octokit/graphql": "^4.6.1",
+      "semver": "^6.1.0"
    },
    "main": "lib/index.js",
    "scripts": {
-      "prebuild": "npm i ncc",
       "build": "ncc build src/run.ts -o lib",
       "test": "jest",
       "test-coverage": "jest --coverage",
@@ -23,12 +22,11 @@
       "format-check": "prettier --check ."
    },
    "devDependencies": {
-      "@types/jest": "^29.5.11",
-      "@types/node": "^20.11.8",
-      "@vercel/ncc": "^0.38.1",
-      "jest": "^29.7.0",
-      "prettier": "^3.2.5",
-      "ts-jest": "^29.1.2",
-      "typescript": "^5.3.3"
+      "@types/jest": "^26.0.0",
+      "@types/node": "^12.0.10",
+      "@vercel/ncc": "^0.34.0",
+      "jest": "^26.0.1",
+      "ts-jest": "^26.0.0",
+      "typescript": "^3.5.2"
    }
 }

src/run.test.ts

@@ -6,95 +6,82 @@ import * as path from 'path'
 import * as core from '@actions/core'
 
 describe('run.ts', () => {
-   const downloadBaseURL = 'https://test.tld'
-
-   // Cleanup mocks after each test to ensure that subsequent tests are not affected by the mocks.
-   afterEach(() => {
-      jest.restoreAllMocks()
-   })
-
    test('getExecutableExtension() - return .exe when os is Windows', () => {
-      jest.spyOn(os, 'platform').mockReturnValue('win32')
+      jest.spyOn(os, 'type').mockReturnValue('Windows_NT')
 
       expect(run.getExecutableExtension()).toBe('.exe')
-      expect(os.platform).toHaveBeenCalled()
+      expect(os.type).toBeCalled()
    })
 
    test('getExecutableExtension() - return empty string for non-windows OS', () => {
-      jest.spyOn(os, 'platform').mockReturnValue('darwin')
+      jest.spyOn(os, 'type').mockReturnValue('Darwin')
 
       expect(run.getExecutableExtension()).toBe('')
-      expect(os.platform).toHaveBeenCalled()
+      expect(os.type).toBeCalled()
    })
 
-   test('getHelmDownloadURL() - return the URL to download helm for Linux amd64', () => {
-      jest.spyOn(os, 'platform').mockReturnValue('linux')
-      jest.spyOn(os, 'arch').mockReturnValue('x64')
-      const expected = 'https://test.tld/helm-v3.8.0-linux-amd64.tar.gz'
+   test('getHelmDownloadURL() - return the URL to download helm for Linux', () => {
+      jest.spyOn(os, 'type').mockReturnValue('Linux')
+      jest.spyOn(os, 'arch').mockReturnValueOnce('unknown')
+      const kubectlLinuxUrl = 'https://get.helm.sh/helm-v3.8.0-linux-amd64.zip'
 
-      expect(run.getHelmDownloadURL(downloadBaseURL, 'v3.8.0')).toBe(expected)
-      expect(os.platform).toHaveBeenCalled()
-      expect(os.arch).toHaveBeenCalled()
+      expect(run.getHelmDownloadURL('v3.8.0')).toBe(kubectlLinuxUrl)
+      expect(os.type).toBeCalled()
+      expect(os.arch).toBeCalled()
+
+      // arm64
+      jest.spyOn(os, 'type').mockReturnValue('Linux')
+      jest.spyOn(os, 'arch').mockReturnValueOnce('arm64')
+      const kubectlLinuxArm64Url =
+         'https://get.helm.sh/helm-v3.8.0-linux-arm64.zip'
+
+      expect(run.getHelmDownloadURL('v3.8.0')).toBe(kubectlLinuxArm64Url)
+      expect(os.type).toBeCalled()
+      expect(os.arch).toBeCalled()
    })
 
-   test('getHelmDownloadURL() - return the URL to download helm for Linux arm64', () => {
-      jest.spyOn(os, 'platform').mockReturnValue('linux')
-      jest.spyOn(os, 'arch').mockReturnValue('arm64')
-      const expected = 'https://test.tld/helm-v3.8.0-linux-arm64.tar.gz'
+   test('getHelmDownloadURL() - return the URL to download helm for Darwin', () => {
+      jest.spyOn(os, 'type').mockReturnValue('Darwin')
+      jest.spyOn(os, 'arch').mockReturnValueOnce('unknown')
+      const kubectlDarwinUrl =
+         'https://get.helm.sh/helm-v3.8.0-darwin-amd64.zip'
 
-      expect(run.getHelmDownloadURL(downloadBaseURL, 'v3.8.0')).toBe(expected)
-      expect(os.platform).toHaveBeenCalled()
-      expect(os.arch).toHaveBeenCalled()
-   })
+      expect(run.getHelmDownloadURL('v3.8.0')).toBe(kubectlDarwinUrl)
+      expect(os.type).toBeCalled()
+      expect(os.arch).toBeCalled()
 
-   test('getHelmDownloadURL() - return the URL to download helm for Darwin x64', () => {
-      jest.spyOn(os, 'platform').mockReturnValue('darwin')
-      jest.spyOn(os, 'arch').mockReturnValue('x64')
-      const expected = 'https://test.tld/helm-v3.8.0-darwin-amd64.tar.gz'
+      // arm64
+      jest.spyOn(os, 'type').mockReturnValue('Darwin')
+      jest.spyOn(os, 'arch').mockReturnValueOnce('arm64')
+      const kubectlDarwinArm64Url =
+         'https://get.helm.sh/helm-v3.8.0-darwin-arm64.zip'
 
-      expect(run.getHelmDownloadURL(downloadBaseURL, 'v3.8.0')).toBe(expected)
-      expect(os.platform).toHaveBeenCalled()
-      expect(os.arch).toHaveBeenCalled()
-   })
-
-   test('getHelmDownloadURL() - return the URL to download helm for Darwin arm64', () => {
-      jest.spyOn(os, 'platform').mockReturnValue('darwin')
-      jest.spyOn(os, 'arch').mockReturnValue('arm64')
-      const expected = 'https://test.tld/helm-v3.8.0-darwin-arm64.tar.gz'
-
-      expect(run.getHelmDownloadURL(downloadBaseURL, 'v3.8.0')).toBe(expected)
-      expect(os.platform).toHaveBeenCalled()
-      expect(os.arch).toHaveBeenCalled()
-   })
-
-   test('getHelmDownloadURL() - return the URL to download helm for Windows', () => {
-      jest.spyOn(os, 'platform').mockReturnValue('win32')
-      jest.spyOn(os, 'arch').mockReturnValue('x64')
-
-      const expected = 'https://test.tld/helm-v3.8.0-windows-amd64.zip'
-      expect(run.getHelmDownloadURL(downloadBaseURL, 'v3.8.0')).toBe(expected)
-      expect(os.platform).toHaveBeenCalled()
-   })
-
-   test('getLatestHelmVersion() - return the latest version of HELM', async () => {
-      const res = {
-         status: 200,
-         text: async () => 'v9.99.999'
-      } as Response
-      global.fetch = jest.fn().mockReturnValue(res)
-      expect(await run.getLatestHelmVersion()).toBe('v9.99.999')
-   })
-
-   test('getLatestHelmVersion() - return the stable version of HELM when simulating a network error', async () => {
-      const errorMessage: string = 'Network Error'
-      global.fetch = jest.fn().mockRejectedValueOnce(new Error(errorMessage))
-      expect(await run.getLatestHelmVersion()).toBe('v3.13.3')
+      expect(run.getHelmDownloadURL('v3.8.0')).toBe(kubectlDarwinArm64Url)
+      expect(os.type).toBeCalled()
+      expect(os.arch).toBeCalled()
    })
 
    test('getValidVersion() - return version with v prepended', () => {
       expect(run.getValidVersion('3.8.0')).toBe('v3.8.0')
    })
 
+   test('getHelmDownloadURL() - return the URL to download helm for Windows', () => {
+      jest.spyOn(os, 'type').mockReturnValue('Windows_NT')
+
+      const kubectlWindowsUrl =
+         'https://get.helm.sh/helm-v3.8.0-windows-amd64.zip'
+      expect(run.getHelmDownloadURL('v3.8.0')).toBe(kubectlWindowsUrl)
+      expect(os.type).toBeCalled()
+   })
+
+   test('getLatestHelmVersion() - return the latest version of HELM', async () => {
+      try {
+         expect(await run.getLatestHelmVersion()).toBe('v3.8.0')
+      } catch (e) {
+         return e
+      }
+   })
+
    test('walkSync() - return path to the all files matching fileToFind in dir', () => {
       jest.spyOn(fs, 'readdirSync').mockImplementation((file, _) => {
          if (file == 'mainFolder')
@@ -114,7 +101,6 @@ describe('run.ts', () => {
                'file21' as unknown as fs.Dirent,
                'file22' as unknown as fs.Dirent
             ]
-         return []
       })
       jest.spyOn(core, 'debug').mockImplementation()
       jest.spyOn(fs, 'statSync').mockImplementation((file) => {
@@ -126,8 +112,8 @@ describe('run.ts', () => {
       expect(run.walkSync('mainFolder', null, 'file21')).toEqual([
          path.join('mainFolder', 'folder2', 'file21')
       ])
-      expect(fs.readdirSync).toHaveBeenCalledTimes(3)
-      expect(fs.statSync).toHaveBeenCalledTimes(8)
+      expect(fs.readdirSync).toBeCalledTimes(3)
+      expect(fs.statSync).toBeCalledTimes(8)
    })
 
    test('walkSync() - return empty array if no file with name fileToFind exists', () => {
@@ -149,7 +135,6 @@ describe('run.ts', () => {
                'file21' as unknown as fs.Dirent,
                'file22' as unknown as fs.Dirent
             ]
-         return []
       })
       jest.spyOn(core, 'debug').mockImplementation()
       jest.spyOn(fs, 'statSync').mockImplementation((file) => {
@@ -159,22 +144,21 @@ describe('run.ts', () => {
       })
 
       expect(run.walkSync('mainFolder', null, 'helm.exe')).toEqual([])
-      expect(fs.readdirSync).toHaveBeenCalledTimes(3)
-      expect(fs.statSync).toHaveBeenCalledTimes(8)
+      expect(fs.readdirSync).toBeCalledTimes(3)
+      expect(fs.statSync).toBeCalledTimes(8)
    })
 
    test('findHelm() - change access permissions and find the helm in given directory', () => {
       jest.spyOn(fs, 'chmodSync').mockImplementation(() => {})
       jest.spyOn(fs, 'readdirSync').mockImplementation((file, _) => {
          if (file == 'mainFolder') return ['helm.exe' as unknown as fs.Dirent]
-         return []
       })
       jest.spyOn(fs, 'statSync').mockImplementation((file) => {
          const isDirectory =
             (file as string).indexOf('folder') == -1 ? false : true
          return {isDirectory: () => isDirectory} as fs.Stats
       })
-      jest.spyOn(os, 'platform').mockReturnValue('win32')
+      jest.spyOn(os, 'type').mockReturnValue('Windows_NT')
 
       expect(run.findHelm('mainFolder')).toBe(
          path.join('mainFolder', 'helm.exe')
@@ -185,13 +169,11 @@ describe('run.ts', () => {
       jest.spyOn(fs, 'chmodSync').mockImplementation(() => {})
       jest.spyOn(fs, 'readdirSync').mockImplementation((file, _) => {
          if (file == 'mainFolder') return []
-         return []
       })
       jest.spyOn(fs, 'statSync').mockImplementation((file) => {
          return {isDirectory: () => true} as fs.Stats
       })
-      jest.spyOn(os, 'platform').mockReturnValue('win32')
-
+      jest.spyOn(os, 'type').mockReturnValue('Windows_NT')
       expect(() => run.findHelm('mainFolder')).toThrow(
          'Helm executable not found in path mainFolder'
       )
@@ -202,9 +184,11 @@ describe('run.ts', () => {
       jest.spyOn(toolCache, 'downloadTool').mockResolvedValue('pathToTool')
       const response = JSON.stringify([{tag_name: 'v4.0.0'}])
       jest.spyOn(fs, 'readFileSync').mockReturnValue(response)
-      jest.spyOn(os, 'platform').mockReturnValue('win32')
+      jest.spyOn(os, 'type').mockReturnValue('Windows_NT')
       jest.spyOn(fs, 'chmodSync').mockImplementation(() => {})
-      jest.spyOn(toolCache, 'extractZip').mockResolvedValue('extractedPath')
+      jest
+         .spyOn(toolCache, 'extractZip')
+         .mockResolvedValue('pathToUnzippedHelm')
       jest.spyOn(toolCache, 'cacheDir').mockResolvedValue('pathToCachedDir')
       jest
          .spyOn(fs, 'readdirSync')
@@ -215,16 +199,16 @@ describe('run.ts', () => {
          return {isDirectory: () => isDirectory} as fs.Stats
       })
 
-      expect(await run.downloadHelm(downloadBaseURL, 'v4.0.0')).toBe(
+      expect(await run.downloadHelm('v4.0.0')).toBe(
          path.join('pathToCachedDir', 'helm.exe')
       )
-      expect(toolCache.find).toHaveBeenCalledWith('helm', 'v4.0.0')
-      expect(toolCache.downloadTool).toHaveBeenCalledWith(
-         'https://test.tld/helm-v4.0.0-windows-amd64.zip'
+      expect(toolCache.find).toBeCalledWith('helm', 'v4.0.0')
+      expect(toolCache.downloadTool).toBeCalledWith(
+         'https://get.helm.sh/helm-v4.0.0-windows-amd64.zip'
       )
-      expect(fs.chmodSync).toHaveBeenCalledWith('pathToTool', '777')
-      expect(toolCache.extractZip).toHaveBeenCalledWith('pathToTool')
-      expect(fs.chmodSync).toHaveBeenCalledWith(
+      expect(fs.chmodSync).toBeCalledWith('pathToTool', '777')
+      expect(toolCache.extractZip).toBeCalledWith('pathToTool')
+      expect(fs.chmodSync).toBeCalledWith(
          path.join('pathToCachedDir', 'helm.exe'),
          '777'
       )
@@ -235,37 +219,26 @@ describe('run.ts', () => {
       jest.spyOn(toolCache, 'downloadTool').mockImplementation(async () => {
          throw 'Unable to download'
       })
-      jest.spyOn(os, 'platform').mockReturnValue('win32')
+      jest.spyOn(os, 'type').mockReturnValue('Windows_NT')
 
-      const downloadUrl = 'https://test.tld/helm-v3.2.1-windows-amd64.zip'
-      await expect(run.downloadHelm(downloadBaseURL, 'v3.2.1')).rejects.toThrow(
-         `Failed to download Helm from location ${downloadUrl}`
+      await expect(run.downloadHelm('v3.2.1')).rejects.toThrow(
+         'Failed to download Helm from location https://get.helm.sh/helm-v3.2.1-windows-amd64.zip'
+      )
+      expect(toolCache.find).toBeCalledWith('helm', 'v3.2.1')
+      expect(toolCache.downloadTool).toBeCalledWith(
+         'https://get.helm.sh/helm-v3.2.1-windows-amd64.zip'
       )
-      expect(toolCache.find).toHaveBeenCalledWith('helm', 'v3.2.1')
-      expect(toolCache.downloadTool).toHaveBeenCalledWith(`${downloadUrl}`)
    })
 
    test('downloadHelm() - return path to helm tool with same version from toolCache', async () => {
       jest.spyOn(toolCache, 'find').mockReturnValue('pathToCachedDir')
-      jest.spyOn(toolCache, 'cacheDir').mockResolvedValue('pathToCachedDir')
-      jest.spyOn(toolCache, 'downloadTool').mockResolvedValue('pathToTool')
-      jest.spyOn(toolCache, 'extractZip').mockResolvedValue('extractedPath')
-      jest.spyOn(os, 'platform').mockReturnValue('win32')
       jest.spyOn(fs, 'chmodSync').mockImplementation(() => {})
-      jest
-         .spyOn(fs, 'readdirSync')
-         .mockReturnValue(['helm.exe' as unknown as fs.Dirent])
-      jest.spyOn(fs, 'statSync').mockImplementation((file) => {
-         const isDirectory =
-            (file as string).indexOf('folder') == -1 ? false : true
-         return {isDirectory: () => isDirectory} as fs.Stats
-      })
 
-      expect(await run.downloadHelm(downloadBaseURL, 'v3.2.1')).toBe(
+      expect(await run.downloadHelm('v3.2.1')).toBe(
          path.join('pathToCachedDir', 'helm.exe')
       )
-      expect(toolCache.find).toHaveBeenCalledWith('helm', 'v3.2.1')
-      expect(fs.chmodSync).toHaveBeenCalledWith(
+      expect(toolCache.find).toBeCalledWith('helm', 'v3.2.1')
+      expect(fs.chmodSync).toBeCalledWith(
          path.join('pathToCachedDir', 'helm.exe'),
          '777'
       )
@@ -274,11 +247,12 @@ describe('run.ts', () => {
    test('downloadHelm() - throw error is helm is not found in path', async () => {
       jest.spyOn(toolCache, 'find').mockReturnValue('')
       jest.spyOn(toolCache, 'downloadTool').mockResolvedValue('pathToTool')
-      jest.spyOn(toolCache, 'cacheDir').mockResolvedValue('pathToCachedDir')
-      jest.spyOn(toolCache, 'downloadTool').mockResolvedValue('pathToTool')
-      jest.spyOn(toolCache, 'extractZip').mockResolvedValue('extractedPath')
-      jest.spyOn(os, 'platform').mockReturnValue('win32')
+      jest.spyOn(os, 'type').mockReturnValue('Windows_NT')
       jest.spyOn(fs, 'chmodSync').mockImplementation()
+      jest
+         .spyOn(toolCache, 'extractZip')
+         .mockResolvedValue('pathToUnzippedHelm')
+      jest.spyOn(toolCache, 'cacheDir').mockResolvedValue('pathToCachedDir')
       jest.spyOn(fs, 'readdirSync').mockImplementation((file, _) => [])
       jest.spyOn(fs, 'statSync').mockImplementation((file) => {
          const isDirectory =
@@ -286,14 +260,14 @@ describe('run.ts', () => {
          return {isDirectory: () => isDirectory} as fs.Stats
       })
 
-      await expect(run.downloadHelm(downloadBaseURL, 'v3.2.1')).rejects.toThrow(
+      await expect(run.downloadHelm('v3.2.1')).rejects.toThrow(
          'Helm executable not found in path pathToCachedDir'
       )
-      expect(toolCache.find).toHaveBeenCalledWith('helm', 'v3.2.1')
-      expect(toolCache.downloadTool).toHaveBeenCalledWith(
-         'https://test.tld/helm-v3.2.1-windows-amd64.zip'
+      expect(toolCache.find).toBeCalledWith('helm', 'v3.2.1')
+      expect(toolCache.downloadTool).toBeCalledWith(
+         'https://get.helm.sh/helm-v3.2.1-windows-amd64.zip'
       )
-      expect(fs.chmodSync).toHaveBeenCalledWith('pathToTool', '777')
-      expect(toolCache.extractZip).toHaveBeenCalledWith('pathToTool')
+      expect(fs.chmodSync).toBeCalledWith('pathToTool', '777')
+      expect(toolCache.extractZip).toBeCalledWith('pathToTool')
    })
 })

src/run.ts

@@ -11,24 +11,21 @@ import * as toolCache from '@actions/tool-cache'
 import * as core from '@actions/core'
 
 const helmToolName = 'helm'
-const stableHelmVersion = 'v3.13.3'
+const stableHelmVersion = 'v3.8.0'
+const helmAllReleasesUrl = 'https://api.github.com/repos/helm/helm/releases'
 
 export async function run() {
    let version = core.getInput('version', {required: true})
 
    if (version !== 'latest' && version[0] !== 'v') {
-      core.info('Getting latest Helm version')
       version = getValidVersion(version)
    }
    if (version.toLocaleLowerCase() === 'latest') {
       version = await getLatestHelmVersion()
    }
 
-   const downloadBaseURL = core.getInput('downloadBaseURL', {required: false})
-
-   core.startGroup(`Downloading ${version}`)
-   const cachedPath = await downloadHelm(downloadBaseURL, version)
-   core.endGroup()
+   core.debug(util.format('Downloading %s', version))
+   let cachedPath = await downloadHelm(version)
 
    try {
       if (!process.env['PATH'].startsWith(path.dirname(cachedPath))) {
@@ -38,79 +35,117 @@ export async function run() {
       //do nothing, set as output variable
    }
 
-   core.info(`Helm tool version '${version}' has been cached at ${cachedPath}`)
+   console.log(
+      `Helm tool version: '${version}' has been cached at ${cachedPath}`
+   )
    core.setOutput('helm-path', cachedPath)
 }
 
-// Prefixes version with v
+//Returns version with proper v before it
 export function getValidVersion(version: string): string {
    return 'v' + version
 }
 
-// Gets the latest helm version or returns a default stable if getting latest fails
+// Downloads the helm releases JSON and parses all the recent versions of helm from it.
+// Defaults to sending stable helm version if none are valid or if it fails
+
 export async function getLatestHelmVersion(): Promise<string> {
+   const helmJSONPath: string = await toolCache.downloadTool(helmAllReleasesUrl)
+
    try {
-      const response = await fetch('https://get.helm.sh/helm-latest-version')
-      const release = (await response.text()).trim()
-      return release
+      const helmJSON = JSON.parse(fs.readFileSync(helmJSONPath, 'utf-8'))
+      for (let i in helmJSON) {
+         if (isValidVersion(helmJSON[i].tag_name)) {
+            return helmJSON[i].tag_name
+         }
+      }
    } catch (err) {
       core.warning(
-         `Error while fetching latest Helm release: ${err.toString()}. Using default version ${stableHelmVersion}`
+         util.format(
+            'Error while fetching the latest Helm release. Error: %s. Using default Helm version %s',
+            err.toString(),
+            stableHelmVersion
+         )
       )
       return stableHelmVersion
    }
+
+   return stableHelmVersion
 }
 
-export function getArch(): string {
-   return os.arch() === 'x64' ? 'amd64' : os.arch()
-}
-
-export function getPlatform(): string {
-   return os.platform() === 'win32' ? 'windows' : os.platform()
-}
-
-export function getArchiveExtension(): string {
-   return os.platform() === 'win32' ? 'zip' : 'tar.gz'
+// isValidVersion checks if verison is a stable release
+function isValidVersion(version: string): boolean {
+   return version.indexOf('rc') == -1
 }
 
 export function getExecutableExtension(): string {
-   return os.platform() === 'win32' ? '.exe' : ''
+   if (os.type().match(/^Win/)) {
+      return '.exe'
+   }
+   return ''
 }
 
-export function getHelmDownloadURL(baseURL: string, version: string): string {
-   const urlPath = `helm-${version}-${getPlatform()}-${getArch()}.${getArchiveExtension()}`
-   const url = new URL(urlPath, baseURL)
-   return url.toString()
+const LINUX = 'Linux'
+const MAC_OS = 'Darwin'
+const WINDOWS = 'Windows_NT'
+const ARM64 = 'arm64'
+export function getHelmDownloadURL(version: string): string {
+   const arch = os.arch()
+   const operatingSystem = os.type()
+
+   switch (true) {
+      case operatingSystem == LINUX && arch == ARM64:
+         return util.format(
+            'https://get.helm.sh/helm-%s-linux-arm64.zip',
+            version
+         )
+      case operatingSystem == LINUX:
+         return util.format(
+            'https://get.helm.sh/helm-%s-linux-amd64.zip',
+            version
+         )
+
+      case operatingSystem == MAC_OS && arch == ARM64:
+         return util.format(
+            'https://get.helm.sh/helm-%s-darwin-arm64.zip',
+            version
+         )
+      case operatingSystem == MAC_OS:
+         return util.format(
+            'https://get.helm.sh/helm-%s-darwin-amd64.zip',
+            version
+         )
+
+      case operatingSystem == WINDOWS:
+      default:
+         return util.format(
+            'https://get.helm.sh/helm-%s-windows-amd64.zip',
+            version
+         )
+   }
 }
 
-export async function downloadHelm(
-   baseURL: string,
-   version: string
-): Promise<string> {
+export async function downloadHelm(version: string): Promise<string> {
    let cachedToolpath = toolCache.find(helmToolName, version)
    if (!cachedToolpath) {
       let helmDownloadPath
       try {
          helmDownloadPath = await toolCache.downloadTool(
-            getHelmDownloadURL(baseURL, version)
+            getHelmDownloadURL(version)
          )
       } catch (exception) {
          throw new Error(
-            `Failed to download Helm from location ${getHelmDownloadURL(
-               baseURL,
-               version
-            )}`
+            util.format(
+               'Failed to download Helm from location',
+               getHelmDownloadURL(version)
+            )
          )
       }
 
       fs.chmodSync(helmDownloadPath, '777')
-      const extractedPath =
-         getPlatform() === 'windows'
-            ? await toolCache.extractZip(helmDownloadPath)
-            : await toolCache.extractTar(helmDownloadPath)
-
+      const unzipedHelmPath = await toolCache.extractZip(helmDownloadPath)
       cachedToolpath = await toolCache.cacheDir(
-         extractedPath,
+         unzipedHelmPath,
          helmToolName,
          version
       )