Streaming when using tofu_wrapper (#75)

Signed-off-by: Diogenes Fernandes <diofeher@gmail.com>

.github/workflows/continuous-integration.yml

@@ -1,19 +1,19 @@
-name: 'Continuous Integration'
+name: "Continuous Integration"
 
 on:
   push:
     branches:
-    - main
+      - main
   pull_request:
 
 jobs:
   check-dist:
     name: Check dist/ directory
-    uses: actions/reusable-workflows/.github/workflows/check-dist.yml@967035ce963867fb956a309c9b67512314bc7c1f
+    uses: actions/reusable-workflows/.github/workflows/check-dist.yml@2826fb8353263a138210fc017301ce5767a9c0d4
     with:
-      node-version: "20.x"
+      node-version: "20.19.1"
   test:
     name: Test
-    uses: actions/reusable-workflows/.github/workflows/basic-validation.yml@967035ce963867fb956a309c9b67512314bc7c1f
+    uses: actions/reusable-workflows/.github/workflows/basic-validation.yml@2826fb8353263a138210fc017301ce5767a9c0d4
     with:
-      node-version: "20.x"
+      node-version: "20.19.1"

.github/workflows/data/local/.opentofu-version

@@ -0,0 +1 @@
+latest

.github/workflows/setup-tofu.yml

@@ -14,13 +14,32 @@ env:
   GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
 
 jobs:
+  tofu-version-files:
+    name: 'OpenTofu Version Files'
+    runs-on: ${{ matrix.os }}
+    strategy:
+      matrix:
+        os: [ubuntu-latest, windows-latest, macos-latest]
+        tofu-version-files: ['./.github/workflows/data/local/.opentofu-version']
+    steps:
+    - name: Checkout
+      uses: actions/checkout@v4
+
+    - name: Setup OpenTofu - ${{ matrix['tofu-version-files'] }}
+      uses: ./
+      with:
+        tofu_version_file: ${{ matrix['tofu-version-files'] }}
+        tofu_wrapper: false
+
+    - name: Validate that OpenTofu was installed
+      run: tofu version | grep 'OpenTofu v'
   tofu-versions:
     name: 'OpenTofu Versions'
     runs-on: ${{ matrix.os }}
     strategy:
       matrix:
         os: [ubuntu-latest, windows-latest, macos-latest]
-        tofu-versions: [1.6.0-alpha1, latest]
+        tofu-versions: [1.6.0, latest]
         tofu-wrapper: [true, false]
     steps:
     - name: Checkout

CODEOWNERS

@@ -4,4 +4,9 @@
 # We currently do not have any specific code owners
 # In the future, we will have a Github team of global code owners of the entire package
 # Later on, we will start splitting up the responsibilities, and packages will be assigned more specific code owners
-# * @opentofu-code-owners
+* @opentofu/maintainers
+
+# The last matching pattern takes the most precedence for CODEOWNERS. CODEOWNERS does not have fine-grained control so we will
+# just match whole changes for these specific files, but @diofeher is responsible for taking care of the Dependabot updates 
+# in this repository.
+package*.json @diofeher

CODE_OF_CONDUCT.md

@@ -1,10 +0,0 @@
-# Code of Conduct
-
-We follow the [CNCF Code of Conduct](https://github.com/cncf/foundation/blob/main/code-of-conduct.md).
-
-<!-- TODO: Decide who will handle Code of Conduct reports and replace [INSERT EMAIL ADDRESS]
-    with an email address in the paragraph below. We recommend using a mailing list to handle reports.
-    If your project isn't prepared to handle reports, remove the project email address and just have
-    reporters send to conduct@cncf.io.
--->
-Please contact contact@opentf.org in order to report violations of the Code of Conduct.

README.md

@@ -1,18 +1,12 @@
-# setup-opentofu
+# GitHub Action for setting up OpenTofu
 
-The `opentofu/setup-opentofu` action sets up OpenTofu CLI in your GitHub Actions workflow by:
+> [!NOTE]
+> This is a community-maintained repository. The OpenTofu team does not fix non-critical bugs or add features, but is happy to review community pull requests.
 
-- Downloading the latest version of OpenTofu CLI and adding it to the `PATH`.
-- Configuring the [CLI configuration file](https://opentofu.org/docs/cli/config/config-file/) with a Terraform Cloud/Enterprise hostname and API token.
-- Installing a wrapper script to wrap subsequent calls of the `tofu` binary and expose its STDOUT, STDERR, and exit code as outputs named `stdout`, `stderr`, and `exitcode` respectively. (This can be optionally skipped if subsequent steps in the same job do not need to access the results of
-  OpenTofu commands.)
+> [!TIP]
+> Having trouble with exit codes or the output format? Try setting the `tofu_wrapper` setting to `false`.
 
-After you've used the action, subsequent steps in the same job can run arbitrary OpenTofu commands using [the GitHub Actions `run` syntax](https://docs.github.com/en/actions/using-workflows/workflow-syntax-for-github-actions#jobsjob_idstepsrun). This allows most OpenTofu commands to work exactly
-like they do on your local command line.
-
-## Experimental Status
-
-By using the software in this repository (the "Software"), you acknowledge that: (1) the Software is still in development, may change, and has not been released as a commercial product by OpenTofu; (2) the Software is provided on an "as-is" basis, and may include bugs, errors, or other issues; (3) the Software is NOT INTENDED FOR PRODUCTION USE, use of the Software may result in unexpected results, loss of data, or other unexpected results, and OpenTofu disclaims any and all liability resulting from use of the Software.
+The `opentofu/setup-opentofu` action sets up OpenTofu CLI in GitHub Actions.
 
 ## Usage
 
@@ -34,6 +28,17 @@ steps:
     tofu_version: 1.6.0
 ```
 
+You can also specify the version in a file (e.g., `.opentofu-version`):
+
+```yaml
+steps:
+  - uses: opentofu/setup-opentofu@v1
+    with:
+      tofu_version_file: .opentofu-version
+```
+
+Supported version syntax is the same as for the `tofu_version` input. If both `tofu_version` and `tofu_version_file` are provided, the version number in the file takes precedence.
+
 Credentials for Terraform Cloud ([app.terraform.io](https://app.terraform.io/)) can be configured:
 
 ```yaml
@@ -254,6 +259,8 @@ The action supports the following inputs:
   for available range specifications). Examples are: `<1.6.0-beta`, `~1.6.0-alpha`, `1.6.0-alpha2` (all three installing
   the latest available `1.6.0-alpha2` version). Prerelease versions can be specified and a range will stay within the
   given tag such as `beta` or `rc`. If no version is given, it will default to `latest`.
+- `tofu_version_file` - (optional) Path to a file containing the OpenTofu version to install. Supported version syntax
+  is the same as for the `tofu_version` input. Takes precedence over `tofu_version` if both are provided.
 - `tofu_wrapper` - (optional) Whether to install a wrapper to wrap subsequent calls of
   the `tofu` binary and expose its STDOUT, STDERR, and exit code as outputs
   named `stdout`, `stderr`, and `exitcode` respectively. Defaults to `true`.
@@ -272,6 +279,3 @@ to `true`, the following outputs are available for subsequent steps that call th
 
 [Mozilla Public License v2.0](LICENSE)
 
-## Code of Conduct
-
-[Code of Conduct](CODE_OF_CONDUCT.md)

action.yml

@@ -13,6 +13,9 @@ inputs:
     description: 'The version of OpenTofu CLI to install. If no version is given, it will default to `latest`.'
     default: 'latest'
     required: false
+  tofu_version_file:
+    description: 'Path to a file containing the OpenTofu version to install. Takes precedence over `tofu_version` if both are provided.'
+    required: false
   tofu_wrapper:
     description: 'Whether or not to install a wrapper to wrap subsequent calls of the `tofu` binary and expose its STDOUT, STDERR, and exit code as outputs named `stdout`, `stderr`, and `exitcode` respectively. Defaults to `true`.'
     default: 'true'

lib/releases.js

@@ -4,16 +4,16 @@
  */
 
 class Build {
-  constructor (name, url) {
+  constructor (version, name) {
     this.name = name;
-    this.url = url;
+    this.url = 'https://github.com/opentofu/opentofu/releases/download/v' + version + '/' + name;
   }
 }
 
 class Release {
   constructor (releaseMeta) {
-    this.version = releaseMeta.tag_name.replace('v', '');
-    this.builds = releaseMeta.assets.map(asset => new Build(asset.name, asset.browser_download_url));
+    this.version = releaseMeta.id.replace('v', '');
+    this.builds = releaseMeta.files.map(asset => new Build(this.version, asset));
   }
 
   getBuild (platform, arch) {
@@ -28,28 +28,32 @@ class Release {
  * @return {Array<Release>} Releases.
  */
 async function fetchReleases (githubToken) {
-  const url = 'https://api.github.com/repos/opentofu/opentofu/releases';
+  const hc = require('@actions/http-client');
+  const userAgent = 'opentofu/setup-opentofu';
+
+  const http = new hc.HttpClient(userAgent);
+
+  const url = 'https://get.opentofu.org/tofu/api.json';
 
   const headers = {
-    Accept: 'application/vnd.github+json',
-    'X-GitHub-Api-Version': '2022-11-28'
+    Accept: 'application/json'
   };
 
-  if (githubToken) {
-    headers.Authorization = `Bearer ${githubToken}`;
+  const resp = await http.get(url, headers);
+
+  if (resp.message.statusCode !== hc.HttpCodes.OK) {
+    throw new Error('failed fetching releases (' + resp.message.statusCode + ')');
   }
 
-  const resp = await fetch(url, {
-    headers
-  });
+  const body = await resp.readBody();
+  const releasesMeta = JSON.parse(body);
 
-  if (!resp.ok) {
-    throw new Error('failed fetching releases (' + resp.status + ')');
-  }
+  /**
+     * @type {Array}
+     */
+  const versions = releasesMeta.versions;
 
-  const releasesMeta = await resp.json();
-
-  return releasesMeta.map(releaseMeta => new Release(releaseMeta));
+  return versions.map(releaseMeta => new Release(releaseMeta));
 }
 
 const semver = require('semver');

lib/setup-tofu.js

@@ -48,7 +48,7 @@ async function downloadAndExtractCLI (url) {
   if (os.platform().startsWith('win')) {
     core.debug(`OpenTofu CLI Download Path is ${pathToCLIZip}`);
     const fixedPathToCLIZip = `${pathToCLIZip}.zip`;
-    io.mv(pathToCLIZip, fixedPathToCLIZip);
+    await io.mv(pathToCLIZip, fixedPathToCLIZip);
     core.debug(`Moved download to ${fixedPathToCLIZip}`);
     pathToCLI = await tc.extractZip(fixedPathToCLIZip);
   } else {
@@ -105,7 +105,7 @@ async function addCredentials (credentialsHostname, credentialsToken, osPlat) {
 credentials "${credentialsHostname}" {
   token = "${credentialsToken}"
 }`.trim();
-  // eslint-enable
+    // eslint-enable
 
   // default to OS-specific path
   let credsFile = osPlat === 'win32'
@@ -128,7 +128,8 @@ credentials "${credentialsHostname}" {
 async function run () {
   try {
     // Gather GitHub Actions inputs
-    const version = core.getInput('tofu_version');
+    let version = core.getInput('tofu_version');
+    const versionFile = core.getInput('tofu_version_file');
     const credentialsHostname = core.getInput('cli_config_credentials_hostname');
     const credentialsToken = core.getInput('cli_config_credentials_token');
     const wrapper = core.getInput('tofu_wrapper') === 'true';
@@ -139,6 +140,27 @@ async function run () {
       githubToken = process.env.GITHUB_TOKEN;
     }
 
+    // If tofu_version_file is provided, read the version from the file
+    if (versionFile) {
+      try {
+        core.debug(`Reading OpenTofu version from file: ${versionFile}`);
+        const fileVersion = await fs.readFile(versionFile, 'utf8');
+        const trimmedVersion = fileVersion.trim();
+        if (trimmedVersion) {
+          version = trimmedVersion;
+          core.debug(`Using version from file: ${version}`);
+        } else {
+          core.warning(
+            `Version file ${versionFile} is empty, using tofu_version input: ${version}`
+          );
+        }
+      } catch (error) {
+        core.warning(
+          `Failed to read version from file ${versionFile}: ${error.message}. Using tofu_version input: ${version}`
+        );
+      }
+    }
+
     // Gather OS details
     const osPlatform = os.platform();
     const osArch = os.arch();

lib/test/releases.test.js

@@ -3,362 +3,133 @@ const pkg = require('../releases');
 describe('getRelease', () => {
   function mockFetchReleases () {
     const mockReleasesMeta = [{
-      tag_name: 'v1.7.0-alpha2',
-      assets: [{
-        name: 'tofu_1.7.0-alpha2_386.apk',
-        browser_download_url: 'https://github.com/opentofu/opentofu/releases/download/v1.7.0-alpha2/tofu_1.7.0-alpha2_386.apk'
-      }, {
-        name: 'tofu_1.7.0-alpha2_386.deb',
-        browser_download_url: 'https://github.com/opentofu/opentofu/releases/download/v1.7.0-alpha2/tofu_1.7.0-alpha2_386.deb'
-      }, {
-        name: 'tofu_1.7.0-alpha2_386.rpm',
-        browser_download_url: 'https://github.com/opentofu/opentofu/releases/download/v1.7.0-alpha2/tofu_1.7.0-alpha2_386.rpm'
-      }, {
-        name: 'tofu_1.7.0-alpha2_amd64.apk',
-        browser_download_url: 'https://github.com/opentofu/opentofu/releases/download/v1.7.0-alpha2/tofu_1.7.0-alpha2_amd64.apk'
-      }, {
-        name: 'tofu_1.7.0-alpha2_amd64.deb',
-        browser_download_url: 'https://github.com/opentofu/opentofu/releases/download/v1.7.0-alpha2/tofu_1.7.0-alpha2_amd64.deb'
-      }, {
-        name: 'tofu_1.7.0-alpha2_amd64.rpm',
-        browser_download_url: 'https://github.com/opentofu/opentofu/releases/download/v1.7.0-alpha2/tofu_1.7.0-alpha2_amd64.rpm'
-      }, {
-        name: 'tofu_1.7.0-alpha2_arm.apk',
-        browser_download_url: 'https://github.com/opentofu/opentofu/releases/download/v1.7.0-alpha2/tofu_1.7.0-alpha2_arm.apk'
-      }, {
-        name: 'tofu_1.7.0-alpha2_arm.deb',
-        browser_download_url: 'https://github.com/opentofu/opentofu/releases/download/v1.7.0-alpha2/tofu_1.7.0-alpha2_arm.deb'
-      }, {
-        name: 'tofu_1.7.0-alpha2_arm.rpm',
-        browser_download_url: 'https://github.com/opentofu/opentofu/releases/download/v1.7.0-alpha2/tofu_1.7.0-alpha2_arm.rpm'
-      }, {
-        name: 'tofu_1.7.0-alpha2_arm64.apk',
-        browser_download_url: 'https://github.com/opentofu/opentofu/releases/download/v1.7.0-alpha2/tofu_1.7.0-alpha2_arm64.apk'
-      }, {
-        name: 'tofu_1.7.0-alpha2_arm64.deb',
-        browser_download_url: 'https://github.com/opentofu/opentofu/releases/download/v1.7.0-alpha2/tofu_1.7.0-alpha2_arm64.deb'
-      }, {
-        name: 'tofu_1.7.0-alpha2_arm64.rpm',
-        browser_download_url: 'https://github.com/opentofu/opentofu/releases/download/v1.7.0-alpha2/tofu_1.7.0-alpha2_arm64.rpm'
-      }, {
-        browser_download_url: 'https://github.com/opentofu/opentofu/releases/download/v1.7.0-alpha2/tofu_1.7.0-alpha2_darwin_amd64.zip'
-      }, {
-        name: 'tofu_1.7.0-alpha2_darwin_arm64.zip',
-        browser_download_url: 'https://github.com/opentofu/opentofu/releases/download/v1.7.0-alpha2/tofu_1.7.0-alpha2_darwin_arm64.zip'
-      }, {
-        name: 'tofu_1.7.0-alpha2_freebsd_386.zip',
-        browser_download_url: 'https://github.com/opentofu/opentofu/releases/download/v1.7.0-alpha2/tofu_1.7.0-alpha2_freebsd_386.zip'
-      }, {
-        name: 'tofu_1.7.0-alpha2_freebsd_amd64.zip',
-        browser_download_url: 'https://github.com/opentofu/opentofu/releases/download/v1.7.0-alpha2/tofu_1.7.0-alpha2_freebsd_amd64.zip'
-      }, {
-        name: 'tofu_1.7.0-alpha2_freebsd_arm.zip',
-        browser_download_url: 'https://github.com/opentofu/opentofu/releases/download/v1.7.0-alpha2/tofu_1.7.0-alpha2_freebsd_arm.zip'
-      }, {
-        name: 'tofu_1.7.0-alpha2_linux_386.zip',
-        browser_download_url: 'https://github.com/opentofu/opentofu/releases/download/v1.7.0-alpha2/tofu_1.7.0-alpha2_linux_386.zip'
-      }, {
-        name: 'tofu_1.7.0-alpha2_linux_amd64.zip',
-        browser_download_url: 'https://github.com/opentofu/opentofu/releases/download/v1.7.0-alpha2/tofu_1.7.0-alpha2_linux_amd64.zip'
-      }, {
-        name: 'tofu_1.7.0-alpha2_linux_arm.zip',
-        browser_download_url: 'https://github.com/opentofu/opentofu/releases/download/v1.7.0-alpha2/tofu_1.7.0-alpha2_linux_arm.zip'
-      }, {
-        name: 'tofu_1.7.0-alpha2_linux_arm64.zip',
-        browser_download_url: 'https://github.com/opentofu/opentofu/releases/download/v1.7.0-alpha2/tofu_1.7.0-alpha2_linux_arm64.zip'
-      }, {
-        name: 'tofu_1.7.0-alpha2_openbsd_386.zip',
-        browser_download_url: 'https://github.com/opentofu/opentofu/releases/download/v1.7.0-alpha2/tofu_1.7.0-alpha2_openbsd_386.zip'
-      }, {
-        name: 'tofu_1.7.0-alpha2_openbsd_amd64.zip',
-        browser_download_url: 'https://github.com/opentofu/opentofu/releases/download/v1.7.0-alpha2/tofu_1.7.0-alpha2_openbsd_amd64.zip'
-      }, {
-        name: 'tofu_1.7.0-alpha2_SHA256SUMS',
-        browser_download_url: 'https://github.com/opentofu/opentofu/releases/download/v1.7.0-alpha2/tofu_1.7.0-alpha2_SHA256SUMS'
-      }, {
-        name: 'tofu_1.7.0-alpha2_SHA256SUMS.pem',
-        browser_download_url: 'https://github.com/opentofu/opentofu/releases/download/v1.7.0-alpha2/tofu_1.7.0-alpha2_SHA256SUMS.pem'
-      }, {
-        name: 'tofu_1.7.0-alpha2_SHA256SUMS.sig',
-        browser_download_url: 'https://github.com/opentofu/opentofu/releases/download/v1.7.0-alpha2/tofu_1.7.0-alpha2_SHA256SUMS.sig'
-      }, {
-        name: 'tofu_1.7.0-alpha2_solaris_amd64.zip',
-        browser_download_url: 'https://github.com/opentofu/opentofu/releases/download/v1.7.0-alpha2/tofu_1.7.0-alpha2_solaris_amd64.zip'
-      }, {
-        name: 'tofu_1.7.0-alpha2_windows_386.zip',
-        browser_download_url: 'https://github.com/opentofu/opentofu/releases/download/v1.7.0-alpha2/tofu_1.7.0-alpha2_windows_386.zip'
-      }, {
-        name: 'tofu_1.7.0-alpha2_windows_amd64.zip',
-        browser_download_url: 'https://github.com/opentofu/opentofu/releases/download/v1.7.0-alpha2/tofu_1.7.0-alpha2_windows_amd64.zip'
-      }]
+      id: 'v1.7.0-alpha2',
+      files: [
+        'tofu_1.7.0-alpha2_386.apk',
+        'tofu_1.7.0-alpha2_386.deb',
+        'tofu_1.7.0-alpha2_386.rpm',
+        'tofu_1.7.0-alpha2_amd64.apk',
+        'tofu_1.7.0-alpha2_amd64.deb',
+        'tofu_1.7.0-alpha2_amd64.rpm',
+        'tofu_1.7.0-alpha2_arm.apk',
+        'tofu_1.7.0-alpha2_arm.deb',
+        'tofu_1.7.0-alpha2_arm.rpm',
+        'tofu_1.7.0-alpha2_arm64.apk',
+        'tofu_1.7.0-alpha2_arm64.deb',
+        'tofu_1.7.0-alpha2_arm64.rpm',
+        'tofu_1.7.0-alpha2_darwin_arm64.zip',
+        'tofu_1.7.0-alpha2_freebsd_386.zip',
+        'tofu_1.7.0-alpha2_freebsd_amd64.zip',
+        'tofu_1.7.0-alpha2_freebsd_arm.zip',
+        'tofu_1.7.0-alpha2_linux_386.zip',
+        'tofu_1.7.0-alpha2_linux_amd64.zip',
+        'tofu_1.7.0-alpha2_linux_arm.zip',
+        'tofu_1.7.0-alpha2_linux_arm64.zip',
+        'tofu_1.7.0-alpha2_openbsd_386.zip',
+        'tofu_1.7.0-alpha2_openbsd_amd64.zip',
+        'tofu_1.7.0-alpha2_SHA256SUMS',
+        'tofu_1.7.0-alpha2_SHA256SUMS.pem',
+        'tofu_1.7.0-alpha2_SHA256SUMS.sig',
+        'tofu_1.7.0-alpha2_solaris_amd64.zip',
+        'tofu_1.7.0-alpha2_windows_386.zip',
+        'tofu_1.7.0-alpha2_windows_amd64.zip'
+      ]
     }, {
-      tag_name: 'v1.6.0',
-      assets: [{
-        name: 'tofu_1.6.0_386.apk',
-        browser_download_url: 'https://github.com/opentofu/opentofu/releases/download/v1.6.0/tofu_1.6.0_386.apk'
-      }, {
-        name: 'tofu_1.6.0_386.deb',
-        browser_download_url: 'https://github.com/opentofu/opentofu/releases/download/v1.6.0/tofu_1.6.0_386.deb'
-      }, {
-        name: 'tofu_1.6.0_386.rpm',
-        browser_download_url: 'https://github.com/opentofu/opentofu/releases/download/v1.6.0/tofu_1.6.0_386.rpm'
-      }, {
-        name: 'tofu_1.6.0_amd64.apk',
-        browser_download_url: 'https://github.com/opentofu/opentofu/releases/download/v1.6.0/tofu_1.6.0_amd64.apk'
-      }, {
-        name: 'tofu_1.6.0_amd64.deb',
-        browser_download_url: 'https://github.com/opentofu/opentofu/releases/download/v1.6.0/tofu_1.6.0_amd64.deb'
-      }, {
-        name: 'tofu_1.6.0_amd64.rpm',
-        browser_download_url: 'https://github.com/opentofu/opentofu/releases/download/v1.6.0/tofu_1.6.0_amd64.rpm'
-      }, {
-        name: 'tofu_1.6.0_arm.apk',
-        browser_download_url: 'https://github.com/opentofu/opentofu/releases/download/v1.6.0/tofu_1.6.0_arm.apk'
-      }, {
-        name: 'tofu_1.6.0_arm.deb',
-        browser_download_url: 'https://github.com/opentofu/opentofu/releases/download/v1.6.0/tofu_1.6.0_arm.deb'
-      }, {
-        name: 'tofu_1.6.0_arm.rpm',
-        browser_download_url: 'https://github.com/opentofu/opentofu/releases/download/v1.6.0/tofu_1.6.0_arm.rpm'
-      }, {
-        name: 'tofu_1.6.0_arm64.apk',
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+      files: [
+        'tofu_1.6.0-alpha1_386.apk',
+        'tofu_1.6.0-alpha1_386.deb',
+        'tofu_1.6.0-alpha1_386.rpm',
+        'tofu_1.6.0-alpha1_amd64.apk',
+        'tofu_1.6.0-alpha1_amd64.deb',
+        'tofu_1.6.0-alpha1_amd64.rpm',
+        'tofu_1.6.0-alpha1_arm.apk',
+        'tofu_1.6.0-alpha1_arm.deb',
+        'tofu_1.6.0-alpha1_arm.rpm',
+        'tofu_1.6.0-alpha1_arm64.apk',
+        'tofu_1.6.0-alpha1_arm64.deb',
+        'tofu_1.6.0-alpha1_arm64.rpm',
+        'tofu_1.6.0-alpha1_darwin_amd64.zip',
+        'tofu_1.6.0-alpha1_darwin_arm64.zip',
+        'tofu_1.6.0-alpha1_freebsd_386.zip',
+        'tofu_1.6.0-alpha1_freebsd_amd64.zip',
+        'tofu_1.6.0-alpha1_freebsd_arm.zip',
+        'tofu_1.6.0-alpha1_linux_386.zip',
+        'tofu_1.6.0-alpha1_linux_amd64.zip',
+        'tofu_1.6.0-alpha1_linux_arm.zip',
+        'tofu_1.6.0-alpha1_linux_arm64.zip',
+        'tofu_1.6.0-alpha1_openbsd_386.zip',
+        'tofu_1.6.0-alpha1_openbsd_amd64.zip',
+        'tofu_1.6.0-alpha1_SHA256SUMS',
+        'tofu_1.6.0-alpha1_SHA256SUMS.pem',
+        'tofu_1.6.0-alpha1_SHA256SUMS.sig',
+        'tofu_1.6.0-alpha1_solaris_amd64.zip',
+        'tofu_1.6.0-alpha1_windows_386.zip',
+        'tofu_1.6.0-alpha1_windows_amd64.zip'
+      ]
     }];
 
     return mockReleasesMeta.map(el => new pkg.Release(el));
@@ -386,8 +157,12 @@ describe('getRelease', () => {
     [
       ['foo', 'Input version cannot be used, see semver: https://semver.org/spec/v2.0.0.html', mockFetchReleases],
       ['2.0', 'No matching version found', mockFetchReleases],
-      ['latest', 'No tofu releases found, please contact OpenTofu', async () => { return null; }],
-      ['latest', 'No tofu releases found, please contact OpenTofu', async () => { return []; }]
+      ['latest', 'No tofu releases found, please contact OpenTofu', async () => {
+        return null;
+      }],
+      ['latest', 'No tofu releases found, please contact OpenTofu', async () => {
+        return [];
+      }]
     ]
   )('unhappy path: getRelease(\'%s\') -> throw Error(\'%s\')', async (input, wantErrorMessage, mockFetchReleasesFn) => {
     try {

lib/test/setup-tofu.test.js

@@ -0,0 +1,176 @@
+// Node.js core
+const fs = require('fs').promises;
+const os = require('os');
+const path = require('path');
+
+// External
+const core = require('@actions/core');
+
+// First party
+const releases = require('../releases');
+const setup = require('../setup-tofu');
+
+// Mock dependencies
+jest.mock('@actions/core');
+jest.mock('@actions/io', () => ({
+  mv: jest.fn(),
+  cp: jest.fn(),
+  mkdirP: jest.fn()
+}));
+jest.mock('@actions/tool-cache', () => ({
+  downloadTool: jest.fn(),
+  extractZip: jest.fn()
+}));
+
+// Mock releases.js so setup-tofu.js can be tested in isolation
+jest.mock('../releases');
+
+// Set up global test fixtures
+const fallbackVersion = 'latest';
+let tempDir;
+let tempDirPath;
+let version = '1.10.5';
+let versionFile;
+let versionFileName = '.opentofu-version';
+
+describe('setup-tofu', () => {
+  beforeAll(async () => {
+    // Mock dependencies
+    const tc = require('@actions/tool-cache');
+    tc.downloadTool.mockResolvedValue('/mock/download/path');
+    tc.extractZip.mockResolvedValue('/mock/extract/path');
+
+    const io = require('@actions/io');
+    io.mv.mockResolvedValue();
+    io.cp.mockResolvedValue();
+    io.mkdirP.mockResolvedValue();
+
+    const mockRelease = {
+      getBuild: jest.fn().mockReturnValue({ url: 'mock-url' })
+    };
+    releases.getRelease.mockResolvedValue(mockRelease);
+
+    // Write version file to temporary directory
+    tempDirPath = path.join(os.tmpdir(), 'setup-tofu-');
+    tempDir = await fs.mkdtemp(tempDirPath);
+    versionFile = path.join(tempDir, versionFileName);
+    await fs.writeFile(versionFile, `${version}\n`);
+
+    // Mock action inputs to return default values
+    core.getInput.mockImplementation((name) => {
+      const defaults = {
+        tofu_version: fallbackVersion,
+        tofu_version_file: versionFile,
+        cli_config_credentials_hostname: '',
+        cli_config_credentials_token: '',
+        tofu_wrapper: 'true',
+        github_token: ''
+      };
+      return defaults[name] || '';
+    });
+
+    // Mock environment variables
+    process.env.GITHUB_TOKEN = 'mock-github-token';
+  });
+
+  beforeEach(() => {
+    jest.clearAllMocks();
+  });
+
+  afterAll(async () => {
+    delete process.env.GITHUB_TOKEN;
+  });
+
+  describe('tofu_version_file functionality', () => {
+    it('should read version from file when tofu_version_file is provided', async () => {
+      jest.spyOn(fs, 'readFile');
+
+      await setup();
+
+      expect(releases.getRelease).toHaveBeenCalledWith(
+        version, process.env.GITHUB_TOKEN
+      );
+
+      expect(fs.readFile).toHaveBeenCalled();
+    });
+
+    it('should handle empty version file gracefully', async () => {
+      jest.spyOn(fs, 'readFile');
+
+      version = ' ';
+      versionFileName = '.opentofu-version-empty';
+      versionFile = path.join(tempDir, versionFileName);
+      await fs.writeFile(versionFile, `${version}\n`);
+
+      core.getInput.mockImplementation((name) => {
+        if (name === 'tofu_version_file') {
+          return versionFile;
+        }
+        if (name === 'tofu_version') {
+          return fallbackVersion;
+        }
+        return '';
+      });
+
+      await setup();
+
+      expect(releases.getRelease).toHaveBeenCalledWith(
+        fallbackVersion, process.env.GITHUB_TOKEN
+      );
+
+      expect(core.warning).toHaveBeenCalledWith(
+        expect.stringContaining(`Version file ${versionFile} is empty`)
+      );
+
+      expect(fs.readFile).toHaveBeenCalled();
+    });
+
+    it('should handle file read errors gracefully', async () => {
+      jest.spyOn(fs, 'readFile');
+
+      versionFileName = '.opentofu-version-file-does-not-exist';
+      versionFile = path.join(tempDir, versionFileName);
+
+      core.getInput.mockImplementation((name) => {
+        if (name === 'tofu_version_file') {
+          return versionFile;
+        }
+        if (name === 'tofu_version') {
+          return fallbackVersion;
+        }
+        return '';
+      });
+
+      await setup();
+
+      expect(releases.getRelease).toHaveBeenCalledWith(
+        fallbackVersion, process.env.GITHUB_TOKEN
+      );
+
+      expect(core.warning).toHaveBeenCalledWith(
+        expect.stringContaining(`Failed to read version from file ${versionFile}`)
+      );
+
+      expect(fs.readFile).toHaveBeenCalled();
+    });
+
+    it('should not read file when tofu_version_file is not provided', async () => {
+      jest.spyOn(fs, 'readFile');
+
+      core.getInput.mockImplementation((name) => {
+        if (name === 'tofu_version') {
+          return fallbackVersion;
+        }
+        return '';
+      });
+
+      await setup();
+
+      expect(releases.getRelease).toHaveBeenCalledWith(
+        fallbackVersion, process.env.GITHUB_TOKEN
+      );
+
+      expect(fs.readFile).not.toHaveBeenCalled();
+    });
+  });
+});

package.json

@@ -19,16 +19,16 @@
   "keywords": [],
   "author": "",
   "dependencies": {
-    "@actions/core": "1.10.1",
-    "@actions/exec": "1.1.1",
-    "@actions/io": "1.1.3",
-    "@actions/tool-cache": "2.0.1",
-    "semver": "7.5.4"
+    "@actions/core": "2.0.1",
+    "@actions/exec": "2.0.0",
+    "@actions/io": "2.0.0",
+    "@actions/tool-cache": "2.0.2",
+    "semver": "7.7.3"
   },
   "devDependencies": {
-    "@vercel/ncc": "0.38.1",
-    "husky": "9.0.11",
-    "jest": "29.7.0",
+    "@vercel/ncc": "0.38.4",
+    "husky": "9.1.7",
+    "jest": "30.2.0",
     "semistandard": "17.0.0"
   },
   "semistandard": {

wrapper/lib/output-listener.js

@@ -9,7 +9,8 @@
  *
  * @example
  * // Instantiate a new listener
- * const listener = new OutputListener();
+ * // stream is used to write the data before waiting for the listener to complete
+ * const listener = new OutputListener(stream);
  * // Register listener against STDOUT stream
  * await exec.exec('ls', ['-ltr'], {
  *  listeners: {
@@ -20,12 +21,14 @@
  * console.log(listener.contents);
  */
 class OutputListener {
-  constructor () {
+  constructor (stream) {
     this._buff = [];
+    this._stream = stream;
   }
 
   get listener () {
     const listen = function listen (data) {
+      this._stream.write(data);
       this._buff.push(data);
     };
     return listen.bind(this);

wrapper/test/output-listener.test.js

@@ -4,14 +4,18 @@
  */
 
 const OutputListener = require('../lib/output-listener');
-
+const { PassThrough } = require('stream');
 describe('output-listener', () => {
   it('receives and exposes data', () => {
-    const listener = new OutputListener();
+    const stream = new PassThrough();
+    const listener = new OutputListener(stream);
     const listen = listener.listener;
     listen(Buffer.from('foo'));
+    expect(stream.read()).toEqual(Buffer.from('foo'));
     listen(Buffer.from('bar'));
+    expect(stream.read()).toEqual(Buffer.from('bar'));
     listen(Buffer.from('baz'));
+    expect(stream.read()).toEqual(Buffer.from('baz'));
     expect(listener.contents).toEqual('foobarbaz');
   });
 });

wrapper/tofu.js

@@ -22,8 +22,8 @@ async function checkTofu () {
   await checkTofu();
 
   // Create listeners to receive output (in memory) as well
-  const stdout = new OutputListener();
-  const stderr = new OutputListener();
+  const stdout = new OutputListener(process.stdout);
+  const stderr = new OutputListener(process.stderr);
   const listeners = {
     stdout: stdout.listener,
     stderr: stderr.listener
@@ -33,13 +33,10 @@ async function checkTofu () {
   const args = process.argv.slice(2);
   const options = {
     listeners,
-    ignoreReturnCode: true
+    ignoreReturnCode: true,
+    silent: true // don't print "[command...]" into stdout: https://github.com/actions/toolkit/issues/649
   };
   const exitCode = await exec(pathToCLI, args, options);
-  core.debug(`OpenTofu exited with code ${exitCode}.`);
-  core.debug(`stdout: ${stdout.contents}`);
-  core.debug(`stderr: ${stderr.contents}`);
-  core.debug(`exitcode: ${exitCode}`);
 
   // Set outputs, result, exitcode, and stderr
   core.setOutput('stdout', stdout.contents);