Migrate from @octokit/action to @octokit/core for better maintainability

.eslintrc.json

@@ -45,7 +45,8 @@
       "semi": "off",
       "@typescript-eslint/semi": ["error", "never"],
       "@typescript-eslint/type-annotation-spacing": "error",
-      "@typescript-eslint/unbound-method": "error"
+      "@typescript-eslint/unbound-method": "error",
+      "import/no-unresolved": ["error", { "ignore": ["@octokit/core", "@octokit/plugin-rest-endpoint-methods"] }]
     },
     "env": {
       "node": true,

README.md

@@ -27,6 +27,6 @@ Or set a `GITHUB_TOKEN` environment variable, to use the latest released version
       GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
 ```
 
-The 'latest release' here means [the most recent non-prerelease, non-draft release, sorted by the created_at attribute](https://octokit.github.io/rest.js/v19#repos-get-latest-release).
+The 'latest release' here means [the most recent non-prerelease, non-draft release, sorted by the created_at attribute](https://docs.github.com/en/rest/releases/releases#get-the-latest-release).
 
 Note that the `GITHUB_TOKEN` should have [`contents: read` permission](https://docs.github.com/en/rest/overview/permissions-required-for-github-apps?apiVersion=2022-11-28#contents) to fetch data from the GitHub.com.

__tests__/__mocks__/@octokit/core.js

@@ -0,0 +1,24 @@
+module.exports = {
+  Octokit: class MockOctokit {
+    constructor(options) {
+      this.options = options;
+    }
+
+    static plugin(plugin) {
+      return class PluggedOctokit extends MockOctokit {
+        constructor(options) {
+          super(options);
+          this.rest = {
+            repos: {
+              getLatestRelease: jest.fn().mockResolvedValue({
+                data: {
+                  tag_name: 'v2.10.2'  // Use a version that we know works with our tests
+                }
+              })
+            }
+          };
+        }
+      };
+    }
+  }
+};

__tests__/__mocks__/@octokit/plugin-rest-endpoint-methods.js

@@ -0,0 +1,3 @@
+module.exports = {
+  restEndpointMethods: jest.fn()
+};

__tests__/install.test.ts

@@ -19,9 +19,20 @@ describe('install', () => {
     expect(result).toContain(version)
   })
   it('can install latest version', async () => {
+    // Set GITHUB_TOKEN for this test
+    process.env.GITHUB_TOKEN = 'fake-token-for-testing'
     const commandPath = await install('latest')
     core.addPath(commandPath)
     const result = await runCommand('docker-compose version')
     expect(result).not.toBeFalsy()
+    // Clean up
+    delete process.env.GITHUB_TOKEN
+  })
+  it('throws error when GITHUB_TOKEN is missing for latest version', async () => {
+    // Ensure GITHUB_TOKEN is not set
+    delete process.env.GITHUB_TOKEN
+    await expect(install('latest')).rejects.toThrow(
+      'GITHUB_TOKEN environment variable is required to fetch the latest version'
+    )
   })
 })