feat: Handle API URLs for Forgejo, Gitea, GitLab and GitHub

dist/index.js

@@ -405,8 +405,10 @@ function createPullRequest(inputs) {
             core.startGroup('Determining the base and head repositories');
             const baseRemote = gitConfigHelper.getGitRemote();
             // Init the GitHub clients
-            const ghBranch = new github_helper_1.GitHubHelper(baseRemote.hostname, inputs.branchToken);
+            const apiUrl = yield github_helper_1.GitHubHelper.determineApiPath(baseRemote.hostname);
-            const ghPull = new github_helper_1.GitHubHelper(baseRemote.hostname, inputs.token);
+            core.info(`Using API base URL: ${apiUrl}`);
+            const ghBranch = new github_helper_1.GitHubHelper(apiUrl, inputs.branchToken);
+            const ghPull = new github_helper_1.GitHubHelper(apiUrl, inputs.token);
             // Determine the head repository; the target for the pull request branch
             const branchRemoteName = inputs.pushToFork ? 'fork' : 'origin';
             const branchRepository = inputs.pushToFork
@@ -1278,20 +1280,40 @@ const ERROR_PR_REVIEW_TOKEN_SCOPE = 'Validation Failed: "Could not resolve to a
 const ERROR_PR_FORK_COLLAB = `Fork collab can't be granted by someone without permission`;
 const blobCreationLimit = (0, p_limit_1.default)(8);
 class GitHubHelper {
-    constructor(githubServerHostname, token) {
+    constructor(apiUrl, token) {
         const options = {};
         if (token) {
             options.auth = `${token}`;
         }
-        if (githubServerHostname !== 'github.com') {
+        options.baseUrl = apiUrl;
-            options.baseUrl = `https://${githubServerHostname}/api/v1`;
-        }
-        else {
-            options.baseUrl = 'https://api.github.com';
-        }
         options.throttle = octokit_client_1.throttleOptions;
         this.octokit = new octokit_client_1.Octokit(options);
     }
+    static determineApiPath(hostname) {
+        return __awaiter(this, void 0, void 0, function* () {
+            if (hostname === 'github.com') {
+                return "https://api.github.com";
+            }
+            const baseUrl = `https://${hostname}`;
+            const possiblePaths = ['/api/v4/version', '/api/forgejo/v1/version', '/api/v1/version'];
+            for (const path of possiblePaths) {
+                try {
+                    const url = `${baseUrl}${path}`;
+                    const response = yield fetch(url, { method: 'GET', redirect: 'manual' });
+                    const contentType = response.headers.get('Content-Type') || '';
+                    if ((response.ok || [401, 403].includes(response.status)) && // Check for valid API status codes
+                        contentType.includes('application/json') // Ensure it's returning JSON
+                    ) {
+                        return path.includes('/version') ? url.replace('/version', '') : url;
+                    }
+                }
+                catch (error) {
+                    // Ignore errors and try the next path
+                }
+            }
+            throw new Error(`Unable to determine API base URL for hostname: ${hostname}`);
+        });
+    }
     parseRepository(repository) {
         const [owner, repo] = repository.split('/');
         return {

src/create-pull-request.ts

@@ -51,8 +51,10 @@ export async function createPullRequest(inputs: Inputs): Promise<void> {
     core.startGroup('Determining the base and head repositories')
     const baseRemote = gitConfigHelper.getGitRemote()
     // Init the GitHub clients
-    const ghBranch = new GitHubHelper(baseRemote.hostname, inputs.branchToken)
+    const apiUrl = await GitHubHelper.determineApiUrl(baseRemote.hostname);
-    const ghPull = new GitHubHelper(baseRemote.hostname, inputs.token)
+    core.info(`Using API base URL: ${apiUrl}`);
+    const ghBranch = new GitHubHelper(apiUrl, inputs.branchToken)
+    const ghPull = new GitHubHelper(apiUrl, inputs.token)
     // Determine the head repository; the target for the pull request branch
     const branchRemoteName = inputs.pushToFork ? 'fork' : 'origin'
     const branchRepository = inputs.pushToFork

src/github-helper.ts

@@ -41,20 +41,44 @@ type TreeObject = {
 export class GitHubHelper {
   private octokit: InstanceType<typeof Octokit>
 
-  constructor(githubServerHostname: string, token: string) {
+  constructor(apiUrl: string, token: string) {
     const options: OctokitOptions = {}
     if (token) {
       options.auth = `${token}`
     }
-    if (githubServerHostname !== 'github.com') {
+    options.baseUrl = apiUrl;
-      options.baseUrl = `https://${githubServerHostname}/api/v3`
-    } else {
-      options.baseUrl = 'https://api.github.com'
-    }
     options.throttle = throttleOptions
     this.octokit = new Octokit(options)
   }
 
+  static async determineApiUrl(hostname: string): Promise<string> {
+    if (hostname === 'github.com') {
+        return "https://api.github.com";
+    }
+
+    const baseUrl = `https://${hostname}`;
+    const possiblePaths = ['/api/v4/version', '/api/forgejo/v1/version', '/api/v1/version'];
+
+    for (const path of possiblePaths) {
+        try {
+            const url = `${baseUrl}${path}`;
+            const response = await fetch(url, { method: 'GET', redirect: 'manual' });
+
+            const contentType = response.headers.get('Content-Type') || '';
+            if (
+                (response.ok || [401, 403].includes(response.status)) && // Check for valid API status codes
+                contentType.includes('application/json') // Ensure it's returning JSON
+            ) {
+                return path.includes('/version') ? url.replace('/version', '') : url;
+            }
+        } catch (error) {
+            // Ignore errors and try the next path
+        }
+    }
+
+    throw new Error(`Unable to determine API base URL for hostname: ${hostname}`);
+  }
+
   private parseRepository(repository: string): Repository {
     const [owner, repo] = repository.split('/')
     return {
@@ -403,3 +427,4 @@ export class GitHubHelper {
     })
   }
 }
+