use Octokit client to download buildx

Signed-off-by: CrazyMax <crazy-max@users.noreply.github.com>

src/buildx.ts

@@ -237,10 +237,12 @@ export async function build(inputBuildRef: string, dest: string, standalone: boo
   return setPlugin(toolPath, dest);
 }
 
-export async function install(inputVersion: string, dest: string, standalone: boolean): Promise<string> {
-  const release: github.GitHubRelease | null = await github.getRelease(inputVersion);
-  if (!release) {
-    throw new Error(`Cannot find buildx ${inputVersion} release`);
+export async function install(inputVersion: string, githubToken: string, dest: string, standalone: boolean): Promise<string> {
+  let release: github.Release;
+  if (inputVersion == 'latest') {
+    release = await github.getLatestRelease(githubToken);
+  } else {
+    release = await github.getReleaseTag(inputVersion, githubToken);
   }
   core.debug(`Release ${release.tag_name} found`);
   const version = release.tag_name.replace(/^v+|v+$/g, '');

src/context.ts

@@ -36,6 +36,7 @@ export interface Inputs {
   config: string;
   configInline: string;
   append: string;
+  githubToken: string;
 }
 
 export async function getInputs(): Promise<Inputs> {
@@ -51,7 +52,8 @@ export async function getInputs(): Promise<Inputs> {
     endpoint: core.getInput('endpoint'),
     config: core.getInput('config'),
     configInline: core.getInput('config-inline'),
-    append: core.getInput('append')
+    append: core.getInput('append'),
+    githubToken: core.getInput('github_token')
   };
 }
 

src/github.ts

@@ -1,12 +1,37 @@
-import * as httpm from '@actions/http-client';
+import * as github from '@actions/github';
 
-export interface GitHubRelease {
+export interface Release {
   id: number;
   tag_name: string;
 }
 
-export const getRelease = async (version: string): Promise<GitHubRelease | null> => {
-  const url = `https://github.com/docker/buildx/releases/${version}`;
-  const http: httpm.HttpClient = new httpm.HttpClient('setup-buildx');
-  return (await http.getJson<GitHubRelease>(url)).result;
+const [owner, repo] = 'docker/buildx'.split('/');
+
+export const getReleaseTag = async (tag: string, githubToken: string): Promise<Release> => {
+  return (
+    await github
+      .getOctokit(githubToken)
+      .rest.repos.getReleaseByTag({
+        owner,
+        repo,
+        tag
+      })
+      .catch(error => {
+        throw new Error(`Cannot get release ${tag}: ${error}`);
+      })
+  ).data as Release;
+};
+
+export const getLatestRelease = async (githubToken: string): Promise<Release> => {
+  return (
+    await github
+      .getOctokit(githubToken)
+      .rest.repos.getLatestRelease({
+        owner,
+        repo
+      })
+      .catch(error => {
+        throw new Error(`Cannot get latest release: ${error}`);
+      })
+  ).data as Release;
 };

src/main.ts

@@ -42,7 +42,7 @@ async function run(): Promise<void> {
       core.endGroup();
     } else if (!(await buildx.isAvailable(standalone)) || inputs.version) {
       core.startGroup(`Download and install buildx`);
-      await buildx.install(inputs.version || 'latest', standalone ? context.tmpDir() : dockerConfigHome, standalone);
+      await buildx.install(inputs.version || 'latest', inputs.githubToken, standalone ? context.tmpDir() : dockerConfigHome, standalone);
       core.endGroup();
     }