Adding Forgejo support (#23)

Signed-off-by: Janos Bonic <86970079+janosdebugs@users.noreply.github.com>
Co-authored-by: Bence Santha <bence@santha.eu>

README.md

@@ -31,7 +31,7 @@ A specific version of OpenTofu CLI can be installed:
 steps:
 - uses: opentofu/setup-opentofu@v1
   with:
-    tofu_version: 1.6.0-alpha1
+    tofu_version: 1.6.0
 ```
 
 Credentials for Terraform Cloud ([app.terraform.io](https://app.terraform.io/)) can be configured:
@@ -257,6 +257,7 @@ The action supports the following inputs:
 - `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`.
+- `github_token` - (optional) Override the GitHub token read from the environment variable. Defaults to the value of the `GITHUB_TOKEN` environment variable unless running on Forgejo or Gitea.
 
 ## Outputs
 

action.yml

@@ -17,6 +17,10 @@ inputs:
     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'
     required: false
+  github_token:
+    description: 'API token for GitHub to increase the rate limit. Defaults to the GITHUB_TOKEN environment variable unless running on Forgejo/Gitea.'
+    default: ''
+    required: false
 outputs:
   stdout:
     description: 'The STDOUT stream of the call to the `tofu` binary.'

dist/index.js

@@ -33,24 +33,24 @@ class Release {
  *
  * @return {Array<Release>} Releases.
  */
-async function fetchReleases () {
+async function fetchReleases (githubToken) {
   const url = 'https://api.github.com/repos/opentofu/opentofu/releases';
 
   const headers = {
     Accept: 'application/vnd.github+json',
     'X-GitHub-Api-Version': '2022-11-28'
   };
 
-  if (process.env.GITHUB_TOKEN) {
-    headers.Authorization = `Bearer ${process.env.GITHUB_TOKEN}`;
+  if (githubToken) {
+    headers.Authorization = `Bearer ${githubToken}`;
   }
 
   const resp = await fetch(url, {
     headers
   });
 
   if (!resp.ok) {
-    throw new Error('failed fetching releases');
+    throw new Error('failed fetching releases (' + resp.status + ')');
   }
 
   const releasesMeta = await resp.json();
@@ -72,18 +72,19 @@ async function findLatestVersionInRange (versions, range) {
  * Fetches the release given the version.
  *
  * @param {string} version: Release version.
+ * @param {string} githubToken: GitHub token to use for working around rate limits.
  * @param {function} fetchReleasesFn: Optional function to fetch releases.
  * @return {Release} Release.
  */
-async function getRelease (version, fetchReleasesFn = fetchReleases) {
+async function getRelease (version, githubToken, fetchReleasesFn = fetchReleases) {
   const latestVersionLabel = 'latest';
 
   const versionsRange = semver.validRange(version, { prerelease: true, loose: true });
   if (versionsRange === null && version !== latestVersionLabel) {
     throw new Error('Input version cannot be used, see semver: https://semver.org/spec/v2.0.0.html');
   }
 
-  const releases = await fetchReleasesFn();
+  const releases = await fetchReleasesFn(githubToken);
 
   if (releases === null || releases.length === 0) {
     throw new Error('No tofu releases found, please contact OpenTofu');
@@ -251,13 +252,19 @@ async function run () {
     const credentialsHostname = core.getInput('cli_config_credentials_hostname');
     const credentialsToken = core.getInput('cli_config_credentials_token');
     const wrapper = core.getInput('tofu_wrapper') === 'true';
+    let githubToken = core.getInput('github_token');
+    if (githubToken === '' && !(process.env.FORGEJO_ACTIONS || process.env.GITEA_ACTIONS)) {
+      // Only default to the environment variable when running in GitHub Actions. Don't do this for other CI systems
+      // that may set the GITHUB_TOKEN environment variable.
+      githubToken = process.env.GITHUB_TOKEN;
+    }
 
     // Gather OS details
     const osPlatform = os.platform();
     const osArch = os.arch();
 
     core.debug(`Finding releases for OpenTofu version ${version}`);
-    const release = await releases.getRelease(version);
+    const release = await releases.getRelease(version, githubToken);
     const platform = mapOS(osPlatform);
     const arch = mapArch(osArch);
     const build = release.getBuild(platform, arch);

lib/releases.js

@@ -27,24 +27,24 @@ class Release {
  *
  * @return {Array<Release>} Releases.
  */
-async function fetchReleases () {
+async function fetchReleases (githubToken) {
   const url = 'https://api.github.com/repos/opentofu/opentofu/releases';
 
   const headers = {
     Accept: 'application/vnd.github+json',
     'X-GitHub-Api-Version': '2022-11-28'
   };
 
-  if (process.env.GITHUB_TOKEN) {
-    headers.Authorization = `Bearer ${process.env.GITHUB_TOKEN}`;
+  if (githubToken) {
+    headers.Authorization = `Bearer ${githubToken}`;
   }
 
   const resp = await fetch(url, {
     headers
   });
 
   if (!resp.ok) {
-    throw new Error('failed fetching releases');
+    throw new Error('failed fetching releases (' + resp.status + ')');
   }
 
   const releasesMeta = await resp.json();
@@ -66,18 +66,19 @@ async function findLatestVersionInRange (versions, range) {
  * Fetches the release given the version.
  *
  * @param {string} version: Release version.
+ * @param {string} githubToken: GitHub token to use for working around rate limits.
  * @param {function} fetchReleasesFn: Optional function to fetch releases.
  * @return {Release} Release.
  */
-async function getRelease (version, fetchReleasesFn = fetchReleases) {
+async function getRelease (version, githubToken, fetchReleasesFn = fetchReleases) {
   const latestVersionLabel = 'latest';
 
   const versionsRange = semver.validRange(version, { prerelease: true, loose: true });
   if (versionsRange === null && version !== latestVersionLabel) {
     throw new Error('Input version cannot be used, see semver: https://semver.org/spec/v2.0.0.html');
   }
 
-  const releases = await fetchReleasesFn();
+  const releases = await fetchReleasesFn(githubToken);
 
   if (releases === null || releases.length === 0) {
     throw new Error('No tofu releases found, please contact OpenTofu');

lib/setup-tofu.js

@@ -132,13 +132,19 @@ async function run () {
     const credentialsHostname = core.getInput('cli_config_credentials_hostname');
     const credentialsToken = core.getInput('cli_config_credentials_token');
     const wrapper = core.getInput('tofu_wrapper') === 'true';
+    let githubToken = core.getInput('github_token');
+    if (githubToken === '' && !(process.env.FORGEJO_ACTIONS || process.env.GITEA_ACTIONS)) {
+      // Only default to the environment variable when running in GitHub Actions. Don't do this for other CI systems
+      // that may set the GITHUB_TOKEN environment variable.
+      githubToken = process.env.GITHUB_TOKEN;
+    }
 
     // Gather OS details
     const osPlatform = os.platform();
     const osArch = os.arch();
 
     core.debug(`Finding releases for OpenTofu version ${version}`);
-    const release = await releases.getRelease(version);
+    const release = await releases.getRelease(version, githubToken);
     const platform = mapOS(osPlatform);
     const arch = mapArch(osArch);
     const build = release.getBuild(platform, arch);

lib/test/releases.test.js

@@ -197,7 +197,7 @@ describe('getRelease', () => {
     ]
   )('happy path: getRelease(\'%s\') -> \'%s\'', async (input, wantVersion) => {
     const want = mockFetchReleases().find(el => el.version === wantVersion);
-    const gotRelease = await pkg.getRelease(input, mockFetchReleases);
+    const gotRelease = await pkg.getRelease(input, '', mockFetchReleases);
     expect(gotRelease).toEqual(want);
   });
 
@@ -210,7 +210,7 @@ describe('getRelease', () => {
     ]
   )('unhappy path: getRelease(\'%s\') -> throw Error(\'%s\')', async (input, wantErrorMessage, mockFetchReleasesFn) => {
     try {
-      await pkg.getRelease(input, mockFetchReleasesFn);
+      await pkg.getRelease(input, '', mockFetchReleasesFn);
       expect(true).toBe(false);
     } catch (e) {
       expect(e.message).toBe(wantErrorMessage);