Added fallback to previous release and validation

Author: fluxxBot

jfrog-tasks-utils/utils.js

@@ -57,26 +57,57 @@ function syncRequestWithRetry(method, url, options = {}, maxRetries = 3, retryDe
 }
 
 /**
- * Fetches the latest JFrog CLI version from GitHub releases with retry mechanism.
+ * Checks if the CLI binary exists on releases.jfrog.io for the given version.
+ * @param {string} version - The CLI version to check
+ * @returns {boolean} True if binary exists, false otherwise
+ */
+function isCliBinaryAvailable(version) {
+    const binaryUrl = `https://releases.jfrog.io/artifactory/jfrog-cli/v2-jf/${version}/${cliPackage}/${fileName}`;
+    try {
+        console.log('Verifying CLI binary availability at: ' + binaryUrl);
+        const res = syncRequestWithRetry('HEAD', binaryUrl, { timeout: 5000 });
+        return res.statusCode === 200;
+    } catch (ex) {
+        console.warn('Failed to verify CLI binary availability: ' + ex.message);
+        return false;
+    }
+}
+
+/**
+ * Fetches the latest available JFrog CLI version from GitHub releases with retry mechanism.
+ * Validates that the binary is available on releases.jfrog.io before returning.
+ * If the latest release binary isn't available, falls back to the previous release.
  * Called once during module initialization. Result is cached in defaultJfrogCliVersion.
- * @returns {string} The CLI version (e.g., '2.89.0') or fallback if fetch fails
+ * @returns {string} The CLI version (e.g., '2.89.0') or fallback if fetch fails or no binary available
  */
 function fetchLatestCliVersion() {
     try {
-        console.log('Fetching latest JFrog CLI version from https://api.github.com/repos/jfrog/jfrog-cli/releases/latest');
-        const res = syncRequestWithRetry('GET', 'https://api.github.com/repos/jfrog/jfrog-cli/releases/latest', {
+        console.log('Fetching JFrog CLI releases from https://api.github.com/repos/jfrog/jfrog-cli/releases');
+        const res = syncRequestWithRetry('GET', 'https://api.github.com/repos/jfrog/jfrog-cli/releases?per_page=3', {
             headers: { 'User-Agent': 'jfrog-azure-devops-extension' },
             timeout: 5000,
         });
         if (res.statusCode === 200) {
-            const release = JSON.parse(res.getBody('utf8'));
-            const version = release.name;
-            console.log('Fetched latest JFrog CLI version: ' + version);
-            return version;
+            const releases = JSON.parse(res.getBody('utf8'));
+            console.log('Fetched ' + releases?.length ?? 0 + ' JFrog CLI releases');
+
+            // Try each release until we find one with an available binary
+            for (const release of releases) {
+                const version = release?.name;
+                console.log('Checking CLI version: ' + version);
+
+                if (isCliBinaryAvailable(version)) {
+                    console.log('CLI binary verified available for version: ' + version);
+                    return version;
+                }
+                console.warn('CLI binary not yet available for version: ' + version);
+            }
+            console.warn('No CLI binaries available for last 3 releases, using fallback: ' + fallbackCliVersion);
+            return fallbackCliVersion;
         }
         console.warn('Unexpected status code: ' + res.statusCode + ', using fallback version: ' + fallbackCliVersion);
     } catch (ex) {
-        console.warn('Failed to fetch latest JFrog CLI version, using fallback: ' + fallbackCliVersion);
+        console.warn('Failed to fetch JFrog CLI releases, using fallback: ' + fallbackCliVersion);
     }
     return fallbackCliVersion;
 }