buildx: split module

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

__tests__/buildkit.test.ts

@@ -21,9 +21,11 @@ import * as rimraf from 'rimraf';
 import * as semver from 'semver';
 
 import {BuildKit} from '../src/buildkit';
-import {Builder, BuilderInfo} from '../src/builder';
+import {Builder} from '../src/buildx/builder';
 import {Context} from '../src/context';
 
+import {BuilderInfo} from '../src/types/builder';
+
 const tmpDir = path.join('/tmp/.docker-actions-toolkit-jest').split(path.sep).join(path.posix.sep);
 const tmpName = path.join(tmpDir, '.tmpname-jest').split(path.sep).join(path.posix.sep);
 

__tests__/buildx/builder.test.ts

@@ -18,8 +18,12 @@ import {beforeEach, describe, expect, it, jest, test} from '@jest/globals';
 import * as fs from 'fs';
 import * as path from 'path';
 
-import {Builder, BuilderInfo} from '../src/builder';
+import {Builder} from '../../src/buildx/builder';
-import {Context} from '../src/context';
+import {Context} from '../../src/context';
+
+import {BuilderInfo} from '../../src/types/builder';
+
+const fixturesDir = path.join(__dirname, '..', 'fixtures');
 
 beforeEach(() => {
   jest.clearAllMocks();
@@ -196,6 +200,6 @@ describe('parseInspect', () => {
      }
     ]
   ])('given %p', async (inspectFile, expected) => {
-    expect(await Builder.parseInspect(fs.readFileSync(path.join(__dirname, 'fixtures', inspectFile)).toString())).toEqual(expected);
+    expect(await Builder.parseInspect(fs.readFileSync(path.join(fixturesDir, inspectFile)).toString())).toEqual(expected);
   });
 });

__tests__/buildx/buildx.test.ts

@@ -0,0 +1,181 @@
+/**
+ * Copyright 2023 actions-toolkit authors
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+import {describe, expect, it, jest, test, beforeEach, afterEach} from '@jest/globals';
+import * as fs from 'fs';
+import * as path from 'path';
+import * as rimraf from 'rimraf';
+import * as semver from 'semver';
+import * as exec from '@actions/exec';
+
+import {Buildx} from '../../src/buildx/buildx';
+import {Context} from '../../src/context';
+
+const tmpDir = path.join('/tmp/.docker-actions-toolkit-jest').split(path.sep).join(path.posix.sep);
+const tmpName = path.join(tmpDir, '.tmpname-jest').split(path.sep).join(path.posix.sep);
+
+jest.spyOn(Context.prototype, 'tmpDir').mockImplementation((): string => {
+  if (!fs.existsSync(tmpDir)) {
+    fs.mkdirSync(tmpDir, {recursive: true});
+  }
+  return tmpDir;
+});
+jest.spyOn(Context.prototype, 'tmpName').mockImplementation((): string => {
+  return tmpName;
+});
+
+beforeEach(() => {
+  jest.clearAllMocks();
+});
+
+afterEach(() => {
+  rimraf.sync(tmpDir);
+});
+
+describe('getRelease', () => {
+  it('returns latest buildx GitHub release', async () => {
+    const release = await Buildx.getRelease('latest');
+    expect(release).not.toBeNull();
+    expect(release?.tag_name).not.toEqual('');
+  });
+
+  it('returns v0.10.1 buildx GitHub release', async () => {
+    const release = await Buildx.getRelease('v0.10.1');
+    expect(release).not.toBeNull();
+    expect(release?.id).toEqual(90346950);
+    expect(release?.tag_name).toEqual('v0.10.1');
+    expect(release?.html_url).toEqual('https://github.com/docker/buildx/releases/tag/v0.10.1');
+  });
+
+  it('returns v0.2.2 buildx GitHub release', async () => {
+    const release = await Buildx.getRelease('v0.2.2');
+    expect(release).not.toBeNull();
+    expect(release?.id).toEqual(17671545);
+    expect(release?.tag_name).toEqual('v0.2.2');
+    expect(release?.html_url).toEqual('https://github.com/docker/buildx/releases/tag/v0.2.2');
+  });
+
+  it('unknown release', async () => {
+    await expect(Buildx.getRelease('foo')).rejects.toThrowError(new Error('Cannot find Buildx release foo in https://raw.githubusercontent.com/docker/buildx/master/.github/releases.json'));
+  });
+});
+
+describe('isAvailable', () => {
+  it('docker cli', async () => {
+    const execSpy = jest.spyOn(exec, 'getExecOutput');
+    const buildx = new Buildx({
+      context: new Context(),
+      standalone: false
+    });
+    buildx.isAvailable().catch(() => {
+      // noop
+    });
+    // eslint-disable-next-line jest/no-standalone-expect
+    expect(execSpy).toHaveBeenCalledWith(`docker`, ['buildx'], {
+      silent: true,
+      ignoreReturnCode: true
+    });
+  });
+  it('standalone', async () => {
+    const execSpy = jest.spyOn(exec, 'getExecOutput');
+    const buildx = new Buildx({
+      context: new Context(),
+      standalone: true
+    });
+    buildx.isAvailable().catch(() => {
+      // noop
+    });
+    // eslint-disable-next-line jest/no-standalone-expect
+    expect(execSpy).toHaveBeenCalledWith(`buildx`, [], {
+      silent: true,
+      ignoreReturnCode: true
+    });
+  });
+});
+
+describe('printInspect', () => {
+  it('prints builder2 instance', () => {
+    const execSpy = jest.spyOn(exec, 'exec');
+    const buildx = new Buildx({
+      context: new Context(),
+      standalone: true
+    });
+    buildx.printInspect('builder2').catch(() => {
+      // noop
+    });
+    expect(execSpy).toHaveBeenCalledWith(`buildx`, ['inspect', 'builder2'], {
+      failOnStdErr: false
+    });
+  });
+});
+
+describe('printVersion', () => {
+  it('docker cli', () => {
+    const execSpy = jest.spyOn(exec, 'exec');
+    const buildx = new Buildx({
+      context: new Context(),
+      standalone: false
+    });
+    buildx.printVersion();
+    expect(execSpy).toHaveBeenCalledWith(`docker`, ['buildx', 'version'], {
+      failOnStdErr: false
+    });
+  });
+  it('standalone', () => {
+    const execSpy = jest.spyOn(exec, 'exec');
+    const buildx = new Buildx({
+      context: new Context(),
+      standalone: true
+    });
+    buildx.printVersion();
+    expect(execSpy).toHaveBeenCalledWith(`buildx`, ['version'], {
+      failOnStdErr: false
+    });
+  });
+});
+
+describe('version', () => {
+  it('valid', async () => {
+    const buildx = new Buildx({
+      context: new Context()
+    });
+    expect(semver.valid(await buildx.version)).not.toBeUndefined();
+  });
+});
+
+describe('parseVersion', () => {
+  test.each([
+    ['github.com/docker/buildx 0.4.1+azure bda4882a65349ca359216b135896bddc1d92461c', '0.4.1'],
+    ['github.com/docker/buildx v0.4.1 bda4882a65349ca359216b135896bddc1d92461c', '0.4.1'],
+    ['github.com/docker/buildx v0.4.2 fb7b670b764764dc4716df3eba07ffdae4cc47b2', '0.4.2'],
+    ['github.com/docker/buildx f117971 f11797113e5a9b86bd976329c5dbb8a8bfdfadfa', 'f117971']
+  ])('given %p', async (stdout, expected) => {
+    expect(Buildx.parseVersion(stdout)).toEqual(expected);
+  });
+});
+
+describe('versionSatisfies', () => {
+  test.each([
+    ['0.4.1', '>=0.3.2', true],
+    ['bda4882a65349ca359216b135896bddc1d92461c', '>0.1.0', false],
+    ['f117971', '>0.6.0', true]
+  ])('given %p', async (version, range, expected) => {
+    const buildx = new Buildx({
+      context: new Context()
+    });
+    expect(await buildx.versionSatisfies(range, version)).toBe(expected);
+  });
+});

__tests__/buildx/inputs.test.ts

@@ -14,16 +14,16 @@
  * limitations under the License.
  */
 
-import {describe, expect, it, jest, test, beforeEach, afterEach} from '@jest/globals';
+import {afterEach, beforeEach, describe, expect, it, jest, test} from '@jest/globals';
 import * as fs from 'fs';
 import * as path from 'path';
 import * as rimraf from 'rimraf';
-import * as semver from 'semver';
-import * as exec from '@actions/exec';
 
-import {Buildx} from '../src/buildx';
+import {Context} from '../../src/context';
-import {Context} from '../src/context';
+import {Buildx} from '../../src/buildx/buildx';
+import {Inputs} from '../../src/buildx/inputs';
 
+const fixturesDir = path.join(__dirname, '..', 'fixtures');
 const tmpDir = path.join('/tmp/.docker-actions-toolkit-jest').split(path.sep).join(path.posix.sep);
 const tmpName = path.join(tmpDir, '.tmpname-jest').split(path.sep).join(path.posix.sep);
 const metadata = `{
@@ -49,122 +49,15 @@ afterEach(() => {
   rimraf.sync(tmpDir);
 });
 
-describe('isAvailable', () => {
-  it('docker cli', async () => {
-    const execSpy = jest.spyOn(exec, 'getExecOutput');
-    const buildx = new Buildx({
-      context: new Context(),
-      standalone: false
-    });
-    buildx.isAvailable().catch(() => {
-      // noop
-    });
-    // eslint-disable-next-line jest/no-standalone-expect
-    expect(execSpy).toHaveBeenCalledWith(`docker`, ['buildx'], {
-      silent: true,
-      ignoreReturnCode: true
-    });
-  });
-  it('standalone', async () => {
-    const execSpy = jest.spyOn(exec, 'getExecOutput');
-    const buildx = new Buildx({
-      context: new Context(),
-      standalone: true
-    });
-    buildx.isAvailable().catch(() => {
-      // noop
-    });
-    // eslint-disable-next-line jest/no-standalone-expect
-    expect(execSpy).toHaveBeenCalledWith(`buildx`, [], {
-      silent: true,
-      ignoreReturnCode: true
-    });
-  });
-});
-
-describe('printInspect', () => {
-  it('prints builder2 instance', () => {
-    const execSpy = jest.spyOn(exec, 'exec');
-    const buildx = new Buildx({
-      context: new Context(),
-      standalone: true
-    });
-    buildx.printInspect('builder2').catch(() => {
-      // noop
-    });
-    expect(execSpy).toHaveBeenCalledWith(`buildx`, ['inspect', 'builder2'], {
-      failOnStdErr: false
-    });
-  });
-});
-
-describe('printVersion', () => {
-  it('docker cli', () => {
-    const execSpy = jest.spyOn(exec, 'exec');
-    const buildx = new Buildx({
-      context: new Context(),
-      standalone: false
-    });
-    buildx.printVersion();
-    expect(execSpy).toHaveBeenCalledWith(`docker`, ['buildx', 'version'], {
-      failOnStdErr: false
-    });
-  });
-  it('standalone', () => {
-    const execSpy = jest.spyOn(exec, 'exec');
-    const buildx = new Buildx({
-      context: new Context(),
-      standalone: true
-    });
-    buildx.printVersion();
-    expect(execSpy).toHaveBeenCalledWith(`buildx`, ['version'], {
-      failOnStdErr: false
-    });
-  });
-});
-
-describe('version', () => {
-  it('valid', async () => {
-    const buildx = new Buildx({
-      context: new Context()
-    });
-    expect(semver.valid(await buildx.version)).not.toBeUndefined();
-  });
-});
-
-describe('parseVersion', () => {
-  test.each([
-    ['github.com/docker/buildx 0.4.1+azure bda4882a65349ca359216b135896bddc1d92461c', '0.4.1'],
-    ['github.com/docker/buildx v0.4.1 bda4882a65349ca359216b135896bddc1d92461c', '0.4.1'],
-    ['github.com/docker/buildx v0.4.2 fb7b670b764764dc4716df3eba07ffdae4cc47b2', '0.4.2'],
-    ['github.com/docker/buildx f117971 f11797113e5a9b86bd976329c5dbb8a8bfdfadfa', 'f117971']
-  ])('given %p', async (stdout, expected) => {
-    expect(Buildx.parseVersion(stdout)).toEqual(expected);
-  });
-});
-
-describe('versionSatisfies', () => {
-  test.each([
-    ['0.4.1', '>=0.3.2', true],
-    ['bda4882a65349ca359216b135896bddc1d92461c', '>0.1.0', false],
-    ['f117971', '>0.6.0', true]
-  ])('given %p', async (version, range, expected) => {
-    const buildx = new Buildx({
-      context: new Context()
-    });
-    expect(await buildx.versionSatisfies(range, version)).toBe(expected);
-  });
-});
-
 describe('getBuildImageID', () => {
   it('matches', async () => {
     const buildx = new Buildx({
       context: new Context()
     });
     const imageID = 'sha256:bfb45ab72e46908183546477a08f8867fc40cebadd00af54b071b097aed127a9';
-    const imageIDFile = buildx.getBuildImageIDFilePath();
+    const imageIDFile = buildx.inputs.getBuildImageIDFilePath();
     await fs.writeFileSync(imageIDFile, imageID);
-    const expected = buildx.getBuildImageID();
+    const expected = buildx.inputs.getBuildImageID();
     expect(expected).toEqual(imageID);
   });
 });
@@ -174,9 +67,9 @@ describe('getBuildMetadata', () => {
     const buildx = new Buildx({
       context: new Context()
     });
-    const metadataFile = buildx.getBuildMetadataFilePath();
+    const metadataFile = buildx.inputs.getBuildMetadataFilePath();
     await fs.writeFileSync(metadataFile, metadata);
-    const expected = buildx.getBuildMetadata();
+    const expected = buildx.inputs.getBuildMetadata();
     expect(expected).toEqual(metadata);
   });
 });
@@ -186,9 +79,9 @@ describe('getDigest', () => {
     const buildx = new Buildx({
       context: new Context()
     });
-    const metadataFile = buildx.getBuildMetadataFilePath();
+    const metadataFile = buildx.inputs.getBuildMetadataFilePath();
     await fs.writeFileSync(metadataFile, metadata);
-    const expected = buildx.getDigest();
+    const expected = buildx.inputs.getDigest();
     expect(expected).toEqual('sha256:b09b9482c72371486bb2c1d2c2a2633ed1d0b8389e12c8d52b9e052725c0c83c');
   });
 });
@@ -238,7 +131,7 @@ describe('getProvenanceInput', () => {
     const buildx = new Buildx({
       context: new Context()
     });
-    expect(buildx.getProvenanceInput('provenance')).toEqual(expected);
+    expect(buildx.inputs.getProvenanceInput('provenance')).toEqual(expected);
   });
 });
 
@@ -269,35 +162,7 @@ describe('getProvenanceAttrs', () => {
     const buildx = new Buildx({
       context: new Context()
     });
-    expect(buildx.getProvenanceAttrs(input)).toEqual(expected);
+    expect(buildx.inputs.getProvenanceAttrs(input)).toEqual(expected);
-  });
-});
-
-describe('getRelease', () => {
-  it('returns latest buildx GitHub release', async () => {
-    const release = await Buildx.getRelease('latest');
-    expect(release).not.toBeNull();
-    expect(release?.tag_name).not.toEqual('');
-  });
-
-  it('returns v0.10.1 buildx GitHub release', async () => {
-    const release = await Buildx.getRelease('v0.10.1');
-    expect(release).not.toBeNull();
-    expect(release?.id).toEqual(90346950);
-    expect(release?.tag_name).toEqual('v0.10.1');
-    expect(release?.html_url).toEqual('https://github.com/docker/buildx/releases/tag/v0.10.1');
-  });
-
-  it('returns v0.2.2 buildx GitHub release', async () => {
-    const release = await Buildx.getRelease('v0.2.2');
-    expect(release).not.toBeNull();
-    expect(release?.id).toEqual(17671545);
-    expect(release?.tag_name).toEqual('v0.2.2');
-    expect(release?.html_url).toEqual('https://github.com/docker/buildx/releases/tag/v0.2.2');
-  });
-
-  it('unknown release', async () => {
-    await expect(Buildx.getRelease('foo')).rejects.toThrowError(new Error('Cannot find Buildx release foo in https://raw.githubusercontent.com/docker/buildx/master/.github/releases.json'));
   });
 });
 
@@ -309,7 +174,7 @@ describe('generateBuildSecret', () => {
     ['aaaaaaaa', false, '', '', new Error('aaaaaaaa is not a valid secret')],
     ['aaaaaaaa=', false, '', '', new Error('aaaaaaaa= is not a valid secret')],
     ['=bbbbbbb', false, '', '', new Error('=bbbbbbb is not a valid secret')],
-    [`foo=${path.join(__dirname, 'fixtures', 'secret.txt').split(path.sep).join(path.posix.sep)}`, true, 'foo', 'bar', null],
+    [`foo=${path.join(fixturesDir, 'secret.txt').split(path.sep).join(path.posix.sep)}`, true, 'foo', 'bar', null],
     [`notfound=secret`, true, '', '', new Error('secret file secret not found')]
   ])('given %p key and %p secret', async (kvp: string, file: boolean, exKey: string, exValue: string, error: Error) => {
     try {
@@ -318,9 +183,9 @@ describe('generateBuildSecret', () => {
       });
       let secret: string;
       if (file) {
-        secret = buildx.generateBuildSecretFile(kvp);
+        secret = buildx.inputs.generateBuildSecretFile(kvp);
       } else {
-        secret = buildx.generateBuildSecretString(kvp);
+        secret = buildx.inputs.generateBuildSecretString(kvp);
       }
       expect(secret).toEqual(`id=${exKey},src=${tmpName}`);
       expect(fs.readFileSync(tmpName, 'utf-8')).toEqual(exValue);
@@ -343,7 +208,7 @@ describe('hasLocalExporter', () => {
     [['" type= local" , dest=./release-out'], true],
     [['.'], true]
   ])('given %p returns %p', async (exporters: Array<string>, expected: boolean) => {
-    expect(Buildx.hasLocalExporter(exporters)).toEqual(expected);
+    expect(Inputs.hasLocalExporter(exporters)).toEqual(expected);
   });
 });
 
@@ -359,7 +224,7 @@ describe('hasTarExporter', () => {
     [['" type= local" , dest=./release-out'], false],
     [['.'], false]
   ])('given %p returns %p', async (exporters: Array<string>, expected: boolean) => {
-    expect(Buildx.hasTarExporter(exporters)).toEqual(expected);
+    expect(Inputs.hasTarExporter(exporters)).toEqual(expected);
   });
 });
 
@@ -375,7 +240,7 @@ describe('hasDockerExporter', () => {
     [['" type= local" , dest=./release-out'], false, undefined],
     [['.'], true, true],
   ])('given %p returns %p', async (exporters: Array<string>, expected: boolean, load: boolean | undefined) => {
-    expect(Buildx.hasDockerExporter(exporters, load)).toEqual(expected);
+    expect(Inputs.hasDockerExporter(exporters, load)).toEqual(expected);
   });
 });
 
@@ -385,7 +250,7 @@ describe('hasGitAuthTokenSecret', () => {
     [['A_SECRET=abcdef0123456789'], false],
     [['GIT_AUTH_TOKEN=abcdefghijklmno=0123456789'], true],
   ])('given %p secret', async (kvp: Array<string>, expected: boolean) => {
-    expect(Buildx.hasGitAuthTokenSecret(kvp)).toBe(expected);
+    expect(Inputs.hasGitAuthTokenSecret(kvp)).toBe(expected);
   });
 });
 

src/buildkit.ts

@@ -20,8 +20,10 @@ import * as exec from '@actions/exec';
 import * as semver from 'semver';
 
 import {Context} from './context';
-import {Buildx} from './buildx';
+import {Buildx} from './buildx/buildx';
-import {Builder, BuilderInfo} from './builder';
+import {Builder} from './buildx/builder';
+
+import {BuilderInfo} from './types/builder';
 
 export interface BuildKitOpts {
   context: Context;
@@ -42,14 +44,6 @@ export class BuildKit {
       });
   }
 
-  private async getBuilderInfo(name: string): Promise<BuilderInfo> {
-    const builder = new Builder({
-      context: this.context,
-      buildx: this.buildx
-    });
-    return builder.inspect(name);
-  }
-
   public async getVersion(builderName: string): Promise<string | undefined> {
     const builderInfo = await this.getBuilderInfo(builderName);
     if (builderInfo.nodes.length == 0) {
@@ -137,4 +131,12 @@ export class BuildKit {
     fs.writeFileSync(configFile, s);
     return configFile;
   }
+
+  private async getBuilderInfo(name: string): Promise<BuilderInfo> {
+    const builder = new Builder({
+      context: this.context,
+      buildx: this.buildx
+    });
+    return builder.inspect(name);
+  }
 }

src/buildx/builder.ts

@@ -17,24 +17,9 @@
 import * as exec from '@actions/exec';
 
 import {Buildx} from './buildx';
-import {Context} from './context';
+import {Context} from '../context';
 
-export interface BuilderInfo {
+import {BuilderInfo, NodeInfo} from '../types/builder';
-  name?: string;
-  driver?: string;
-  lastActivity?: Date;
-  nodes: NodeInfo[];
-}
-
-export interface NodeInfo {
-  name?: string;
-  endpoint?: string;
-  driverOpts?: Array<string>;
-  status?: string;
-  buildkitdFlags?: string;
-  buildkitVersion?: string;
-  platforms?: string;
-}
 
 export interface BuilderOpts {
   context: Context;

src/buildx/buildx.ts

@@ -0,0 +1,137 @@
+/**
+ * Copyright 2023 actions-toolkit authors
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+import * as exec from '@actions/exec';
+import * as httpm from '@actions/http-client';
+import * as semver from 'semver';
+
+import {Docker} from '../docker';
+import {Context} from '../context';
+import {Inputs} from './inputs';
+
+import {GitHubRelease} from '../types/github';
+
+export interface BuildxOpts {
+  context: Context;
+  standalone?: boolean;
+}
+
+export class Buildx {
+  private readonly context: Context;
+  private _version: string | undefined;
+
+  public readonly inputs: Inputs;
+  public readonly standalone: boolean;
+
+  constructor(opts: BuildxOpts) {
+    this.context = opts.context;
+    this.inputs = new Inputs(this.context);
+    this.standalone = opts?.standalone ?? !Docker.isAvailable();
+  }
+
+  public static async getRelease(version: string): Promise<GitHubRelease> {
+    // FIXME: Use https://raw.githubusercontent.com/docker/actions-toolkit/main/.github/buildx-releases.json when repo public
+    const url = `https://raw.githubusercontent.com/docker/buildx/master/.github/releases.json`;
+    const http: httpm.HttpClient = new httpm.HttpClient('docker-actions-toolkit');
+    const resp: httpm.HttpClientResponse = await http.get(url);
+    const body = await resp.readBody();
+    const statusCode = resp.message.statusCode || 500;
+    if (statusCode >= 400) {
+      throw new Error(`Failed to get Buildx release ${version} from ${url} with status code ${statusCode}: ${body}`);
+    }
+    const releases = <Record<string, GitHubRelease>>JSON.parse(body);
+    if (!releases[version]) {
+      throw new Error(`Cannot find Buildx release ${version} in ${url}`);
+    }
+    return releases[version];
+  }
+
+  public getCommand(args: Array<string>) {
+    return {
+      command: this.standalone ? 'buildx' : 'docker',
+      args: this.standalone ? args : ['buildx', ...args]
+    };
+  }
+
+  public async isAvailable(): Promise<boolean> {
+    const cmd = this.getCommand([]);
+    return await exec
+      .getExecOutput(cmd.command, cmd.args, {
+        ignoreReturnCode: true,
+        silent: true
+      })
+      .then(res => {
+        if (res.stderr.length > 0 && res.exitCode != 0) {
+          return false;
+        }
+        return res.exitCode == 0;
+      })
+      // eslint-disable-next-line @typescript-eslint/no-unused-vars
+      .catch(error => {
+        return false;
+      });
+  }
+
+  public async printInspect(name: string): Promise<void> {
+    const cmd = this.getCommand(['inspect', name]);
+    await exec.exec(cmd.command, cmd.args, {
+      failOnStdErr: false
+    });
+  }
+
+  get version() {
+    return (async () => {
+      if (!this._version) {
+        const cmd = this.getCommand(['version']);
+        this._version = await exec
+          .getExecOutput(cmd.command, cmd.args, {
+            ignoreReturnCode: true,
+            silent: true
+          })
+          .then(res => {
+            if (res.stderr.length > 0 && res.exitCode != 0) {
+              throw new Error(res.stderr.trim());
+            }
+            return Buildx.parseVersion(res.stdout.trim());
+          });
+      }
+      return this._version;
+    })();
+  }
+
+  public async printVersion() {
+    const cmd = this.getCommand(['version']);
+    await exec.exec(cmd.command, cmd.args, {
+      failOnStdErr: false
+    });
+  }
+
+  public static parseVersion(stdout: string): string {
+    const matches = /\sv?([0-9a-f]{7}|[0-9.]+)/.exec(stdout);
+    if (!matches) {
+      throw new Error(`Cannot parse buildx version`);
+    }
+    return matches[1];
+  }
+
+  public async versionSatisfies(range: string, version?: string): Promise<boolean> {
+    const ver = version ?? (await this.version);
+    if (!ver) {
+      return false;
+    }
+    return semver.satisfies(ver, range) || /^[0-9a-f]{7}$/.exec(ver) !== null;
+  }
+}

src/buildx/inputs.ts

@@ -17,111 +17,15 @@
 import fs from 'fs';
 import path from 'path';
 import * as core from '@actions/core';
-import * as exec from '@actions/exec';
-import * as httpm from '@actions/http-client';
 import {parse} from 'csv-parse/sync';
-import * as semver from 'semver';
 
-import {Docker} from './docker';
+import {Context} from '../context';
-import {Context} from './context';
 
-export interface GitHubRelease {
+export class Inputs {
-  id: number;
-  tag_name: string;
-  html_url: string;
-  assets: Array<string>;
-}
-
-export interface BuildxOpts {
-  context: Context;
-  standalone?: boolean;
-}
-
-export class Buildx {
   private readonly context: Context;
-  private _version: string | undefined;
 
-  public standalone: boolean;
+  constructor(context: Context) {
-
+    this.context = context;
-  constructor(opts: BuildxOpts) {
-    this.context = opts.context;
-    this.standalone = opts?.standalone ?? !Docker.isAvailable();
-  }
-
-  public getCommand(args: Array<string>) {
-    return {
-      command: this.standalone ? 'buildx' : 'docker',
-      args: this.standalone ? args : ['buildx', ...args]
-    };
-  }
-
-  public async isAvailable(): Promise<boolean> {
-    const cmd = this.getCommand([]);
-    return await exec
-      .getExecOutput(cmd.command, cmd.args, {
-        ignoreReturnCode: true,
-        silent: true
-      })
-      .then(res => {
-        if (res.stderr.length > 0 && res.exitCode != 0) {
-          return false;
-        }
-        return res.exitCode == 0;
-      })
-      // eslint-disable-next-line @typescript-eslint/no-unused-vars
-      .catch(error => {
-        return false;
-      });
-  }
-
-  public async printInspect(name: string): Promise<void> {
-    const cmd = this.getCommand(['inspect', name]);
-    await exec.exec(cmd.command, cmd.args, {
-      failOnStdErr: false
-    });
-  }
-
-  get version() {
-    return (async () => {
-      if (!this._version) {
-        const cmd = this.getCommand(['version']);
-        this._version = await exec
-          .getExecOutput(cmd.command, cmd.args, {
-            ignoreReturnCode: true,
-            silent: true
-          })
-          .then(res => {
-            if (res.stderr.length > 0 && res.exitCode != 0) {
-              throw new Error(res.stderr.trim());
-            }
-            return Buildx.parseVersion(res.stdout.trim());
-          });
-      }
-      return this._version;
-    })();
-  }
-
-  public async printVersion() {
-    const cmd = this.getCommand(['version']);
-    await exec.exec(cmd.command, cmd.args, {
-      failOnStdErr: false
-    });
-  }
-
-  public static parseVersion(stdout: string): string {
-    const matches = /\sv?([0-9a-f]{7}|[0-9.]+)/.exec(stdout);
-    if (!matches) {
-      throw new Error(`Cannot parse buildx version`);
-    }
-    return matches[1];
-  }
-
-  public async versionSatisfies(range: string, version?: string): Promise<boolean> {
-    const ver = version ?? (await this.version);
-    if (!ver) {
-      return false;
-    }
-    return semver.satisfies(ver, range) || /^[0-9a-f]{7}$/.exec(ver) !== null;
   }
 
   public getBuildImageIDFilePath(): string {
@@ -228,33 +132,16 @@ export class Buildx {
     return `${input},builder-id=${this.context.provenanceBuilderID}`;
   }
 
-  public static async getRelease(version: string): Promise<GitHubRelease> {
-    // FIXME: Use https://raw.githubusercontent.com/docker/actions-toolkit/main/.github/buildx-releases.json when repo public
-    const url = `https://raw.githubusercontent.com/docker/buildx/master/.github/releases.json`;
-    const http: httpm.HttpClient = new httpm.HttpClient('docker-actions-toolkit');
-    const resp: httpm.HttpClientResponse = await http.get(url);
-    const body = await resp.readBody();
-    const statusCode = resp.message.statusCode || 500;
-    if (statusCode >= 400) {
-      throw new Error(`Failed to get Buildx release ${version} from ${url} with status code ${statusCode}: ${body}`);
-    }
-    const releases = <Record<string, GitHubRelease>>JSON.parse(body);
-    if (!releases[version]) {
-      throw new Error(`Cannot find Buildx release ${version} in ${url}`);
-    }
-    return releases[version];
-  }
-
   public static hasLocalExporter(exporters: string[]): boolean {
-    return Buildx.hasExporterType('local', exporters);
+    return Inputs.hasExporterType('local', exporters);
   }
 
   public static hasTarExporter(exporters: string[]): boolean {
-    return Buildx.hasExporterType('tar', exporters);
+    return Inputs.hasExporterType('tar', exporters);
   }
 
   public static hasDockerExporter(exporters: string[], load?: boolean): boolean {
-    return load ?? Buildx.hasExporterType('docker', exporters);
+    return load ?? Inputs.hasExporterType('docker', exporters);
   }
 
   public static hasExporterType(name: string, exporters: string[]): boolean {

src/toolkit.ts

@@ -15,19 +15,21 @@
  */
 
 import {Context} from './context';
-import {Buildx} from './buildx';
+import {Buildx} from './buildx/buildx';
 import {BuildKit} from './buildkit';
 import {GitHub} from './github';
 
-export {Builder, BuilderOpts, BuilderInfo, NodeInfo} from './builder';
+export {Builder, BuilderOpts} from './buildx/builder';
 export {BuildKit, BuildKitOpts} from './buildkit';
-export {Buildx, BuildxOpts} from './buildx';
+export {Buildx, BuildxOpts} from './buildx/buildx';
 export {Context} from './context';
 export {Docker} from './docker';
 export {Git} from './git';
 export {GitHub, GitHubRepo, GitHubActionsRuntimeToken} from './github';
 export {Util} from './util';
 
+export {BuilderInfo, NodeInfo} from './types/builder';
+
 export interface ToolkitOpts {
   /**
    * GitHub token to use for authentication.

src/types/builder.ts

@@ -0,0 +1,32 @@
+/**
+ * Copyright 2023 actions-toolkit authors
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+export interface BuilderInfo {
+  name?: string;
+  driver?: string;
+  lastActivity?: Date;
+  nodes: NodeInfo[];
+}
+
+export interface NodeInfo {
+  name?: string;
+  endpoint?: string;
+  driverOpts?: Array<string>;
+  status?: string;
+  buildkitdFlags?: string;
+  buildkitVersion?: string;
+  platforms?: string;
+}

src/types/github.ts

@@ -0,0 +1,22 @@
+/**
+ * Copyright 2023 actions-toolkit authors
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+export interface GitHubRelease {
+  id: number;
+  tag_name: string;
+  html_url: string;
+  assets: Array<string>;
+}