make Context static

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

__tests__/buildkit/buildkit.test.ts

@@ -18,7 +18,6 @@ import {beforeEach, describe, expect, it, jest, test} from '@jest/globals';
 
 import {BuildKit} from '../../src/buildkit/buildkit';
 import {Builder} from '../../src/buildx/builder';
-import {Context} from '../../src/context';
 
 import {BuilderInfo} from '../../src/types/builder';
 
@@ -47,13 +46,9 @@ jest.spyOn(Builder.prototype, 'inspect').mockImplementation(async (): Promise<Bu
 
 describe('getVersion', () => {
   it('valid', async () => {
-    const builder = new Builder({
+    const builder = new Builder();
-      context: new Context()
-    });
     const builderInfo = await builder.inspect('builder2');
-    const buildkit = new BuildKit({
+    const buildkit = new BuildKit();
-      context: new Context()
-    });
     const version = await buildkit.getVersion(builderInfo.nodes[0]);
     expect(version).toBe('v0.11.0');
   });
@@ -64,9 +59,7 @@ describe('satisfies', () => {
     ['builder2', '>=0.10.0', true],
     ['builder2', '>0.11.0', false]
   ])('given %p', async (builderName, range, expected) => {
-    const buildkit = new BuildKit({
+    const buildkit = new BuildKit();
-      context: new Context()
-    });
     expect(await buildkit.versionSatisfies(builderName, range)).toBe(expected);
   });
 });

__tests__/buildkit/config.test.ts

@@ -27,13 +27,14 @@ const fixturesDir = path.join(__dirname, '..', 'fixtures');
 const tmpDir = path.join(process.env.TEMP || '/tmp', 'buildkit-config-jest');
 const tmpName = path.join(tmpDir, '.tmpname-jest');
 
-jest.spyOn(Context.prototype, 'tmpDir').mockImplementation((): string => {
+jest.spyOn(Context, 'tmpDir').mockImplementation((): string => {
   if (!fs.existsSync(tmpDir)) {
     fs.mkdirSync(tmpDir, {recursive: true});
   }
   return tmpDir;
 });
-jest.spyOn(Context.prototype, 'tmpName').mockImplementation((): string => {
+
+jest.spyOn(Context, 'tmpName').mockImplementation((): string => {
   return tmpName;
 });
 
@@ -60,9 +61,7 @@ describe('resolve', () => {
     ]
   ])('given %p config', async (val, file, exValue, error: Error) => {
     try {
-      const buildkit = new BuildKit({
+      const buildkit = new BuildKit();
-        context: new Context()
-      });
       let config: string;
       if (file) {
         config = buildkit.config.resolveFromFile(val);

__tests__/buildx/builder.test.ts

@@ -19,7 +19,6 @@ import * as fs from 'fs';
 import * as path from 'path';
 
 import {Builder} from '../../src/buildx/builder';
-import {Context} from '../../src/context';
 
 import {BuilderInfo} from '../../src/types/builder';
 
@@ -50,9 +49,7 @@ jest.spyOn(Builder.prototype, 'inspect').mockImplementation(async (): Promise<Bu
 
 describe('inspect', () => {
   it('valid', async () => {
-    const builder = new Builder({
+    const builder = new Builder();
-      context: new Context()
-    });
     const builderInfo = await builder.inspect('');
     expect(builderInfo).not.toBeUndefined();
     expect(builderInfo.name).not.toEqual('');

__tests__/buildx/buildx.test.ts

@@ -30,13 +30,14 @@ import {Cert} from '../../src/types/buildx';
 const tmpDir = path.join(process.env.TEMP || '/tmp', 'buildx-jest');
 const tmpName = path.join(tmpDir, '.tmpname-jest');
 
-jest.spyOn(Context.prototype, 'tmpDir').mockImplementation((): string => {
+jest.spyOn(Context, 'tmpDir').mockImplementation((): string => {
   if (!fs.existsSync(tmpDir)) {
     fs.mkdirSync(tmpDir, {recursive: true});
   }
   return tmpDir;
 });
-jest.spyOn(Context.prototype, 'tmpName').mockImplementation((): string => {
+
+jest.spyOn(Context, 'tmpName').mockImplementation((): string => {
   return tmpName;
 });
 
@@ -92,7 +93,6 @@ describe('isAvailable', () => {
   it('docker cli', async () => {
     const execSpy = jest.spyOn(exec, 'getExecOutput');
     const buildx = new Buildx({
-      context: new Context(),
       standalone: false
     });
     await buildx.isAvailable();
@@ -105,7 +105,6 @@ describe('isAvailable', () => {
   it('standalone', async () => {
     const execSpy = jest.spyOn(exec, 'getExecOutput');
     const buildx = new Buildx({
-      context: new Context(),
       standalone: true
     });
     await buildx.isAvailable();
@@ -121,7 +120,6 @@ describe('printInspect', () => {
   it('prints builder2 instance', async () => {
     const execSpy = jest.spyOn(exec, 'exec');
     const buildx = new Buildx({
-      context: new Context(),
       standalone: true
     });
     await buildx.printInspect('builder2').catch(() => {
@@ -137,7 +135,6 @@ describe('printVersion', () => {
   it('docker cli', async () => {
     const execSpy = jest.spyOn(exec, 'exec');
     const buildx = new Buildx({
-      context: new Context(),
       standalone: false
     });
     await buildx.printVersion();
@@ -148,7 +145,6 @@ describe('printVersion', () => {
   it('standalone', async () => {
     const execSpy = jest.spyOn(exec, 'exec');
     const buildx = new Buildx({
-      context: new Context(),
       standalone: true
     });
     await buildx.printVersion();
@@ -160,9 +156,7 @@ describe('printVersion', () => {
 
 describe('version', () => {
   it('valid', async () => {
-    const buildx = new Buildx({
+    const buildx = new Buildx();
-      context: new Context()
-    });
     expect(semver.valid(await buildx.version)).not.toBeUndefined();
   });
 });
@@ -184,9 +178,7 @@ describe('versionSatisfies', () => {
     ['bda4882a65349ca359216b135896bddc1d92461c', '>0.1.0', false],
     ['f117971', '>0.6.0', true]
   ])('given %p', async (version, range, expected) => {
-    const buildx = new Buildx({
+    const buildx = new Buildx();
-      context: new Context()
-    });
     expect(await buildx.versionSatisfies(range, version)).toBe(expected);
   });
 });

__tests__/buildx/inputs.test.ts

@@ -32,13 +32,14 @@ const metadata = `{
   "containerimage.digest": "sha256:b09b9482c72371486bb2c1d2c2a2633ed1d0b8389e12c8d52b9e052725c0c83c"
 }`;
 
-jest.spyOn(Context.prototype, 'tmpDir').mockImplementation((): string => {
+jest.spyOn(Context, 'tmpDir').mockImplementation((): string => {
   if (!fs.existsSync(tmpDir)) {
     fs.mkdirSync(tmpDir, {recursive: true});
   }
   return tmpDir;
 });
-jest.spyOn(Context.prototype, 'tmpName').mockImplementation((): string => {
+
+jest.spyOn(Context, 'tmpName').mockImplementation((): string => {
   return tmpName;
 });
 
@@ -52,9 +53,7 @@ afterEach(() => {
 
 describe('resolveBuildImageID', () => {
   it('matches', async () => {
-    const buildx = new Buildx({
+    const buildx = new Buildx();
-      context: new Context()
-    });
     const imageID = 'sha256:bfb45ab72e46908183546477a08f8867fc40cebadd00af54b071b097aed127a9';
     const imageIDFile = buildx.inputs.getBuildImageIDFilePath();
     await fs.writeFileSync(imageIDFile, imageID);
@@ -65,9 +64,7 @@ describe('resolveBuildImageID', () => {
 
 describe('resolveBuildMetadata', () => {
   it('matches', async () => {
-    const buildx = new Buildx({
+    const buildx = new Buildx();
-      context: new Context()
-    });
     const metadataFile = buildx.inputs.getBuildMetadataFilePath();
     await fs.writeFileSync(metadataFile, metadata);
     const expected = buildx.inputs.resolveBuildMetadata();
@@ -77,9 +74,7 @@ describe('resolveBuildMetadata', () => {
 
 describe('resolveDigest', () => {
   it('matches', async () => {
-    const buildx = new Buildx({
+    const buildx = new Buildx();
-      context: new Context()
-    });
     const metadataFile = buildx.inputs.getBuildMetadataFilePath();
     await fs.writeFileSync(metadataFile, metadata);
     const expected = buildx.inputs.resolveDigest();
@@ -129,9 +124,7 @@ describe('getProvenanceInput', () => {
     ],
   ])('given input %p', async (input: string, expected: string) => {
     await setInput('provenance', input);
-    const buildx = new Buildx({
+    const buildx = new Buildx();
-      context: new Context()
-    });
     expect(buildx.inputs.getProvenanceInput('provenance')).toEqual(expected);
   });
 });
@@ -160,9 +153,7 @@ describe('resolveProvenanceAttrs', () => {
       'builder-id=https://github.com/docker/actions-toolkit/actions/runs/123'
     ],
   ])('given %p', async (input: string, expected: string) => {
-    const buildx = new Buildx({
+    const buildx = new Buildx();
-      context: new Context()
-    });
     expect(buildx.inputs.resolveProvenanceAttrs(input)).toEqual(expected);
   });
 });
@@ -179,9 +170,7 @@ describe('resolveBuildSecret', () => {
     [`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 {
-      const buildx = new Buildx({
+      const buildx = new Buildx();
-        context: new Context()
-      });
       let secret: string;
       if (file) {
         secret = buildx.inputs.resolveBuildSecretFile(kvp);

__tests__/context.test.ts

@@ -25,13 +25,14 @@ import {Context} from '../src/context';
 const tmpDir = path.join(process.env.TEMP || '/tmp', 'context-jest');
 const tmpName = path.join(tmpDir, '.tmpname-jest');
 
-jest.spyOn(Context.prototype, 'tmpDir').mockImplementation((): string => {
+jest.spyOn(Context, 'tmpDir').mockImplementation((): string => {
   if (!fs.existsSync(tmpDir)) {
     fs.mkdirSync(tmpDir, {recursive: true});
   }
   return tmpDir;
 });
-jest.spyOn(Context.prototype, 'tmpName').mockImplementation((): string => {
+
+jest.spyOn(Context, 'tmpName').mockImplementation((): string => {
   return tmpName;
 });
 
@@ -43,16 +44,20 @@ afterEach(() => {
   rimraf.sync(tmpDir);
 });
 
+describe('gitRef', () => {
+  it('returns refs/heads/master', async () => {
+    expect(Context.gitRef()).toEqual('refs/heads/master');
+  });
+});
+
 describe('gitContext', () => {
   it('returns refs/heads/master', async () => {
-    const context = new Context();
+    expect(Context.gitContext()).toEqual('https://github.com/docker/actions-toolkit.git#refs/heads/master');
-    expect(context.buildGitContext).toEqual('https://github.com/docker/actions-toolkit.git#refs/heads/master');
   });
 });
 
 describe('provenanceBuilderID', () => {
   it('returns 123', async () => {
-    const context = new Context();
+    expect(Context.provenanceBuilderID()).toEqual('https://github.com/docker/actions-toolkit/actions/runs/123');
-    expect(context.provenanceBuilderID).toEqual('https://github.com/docker/actions-toolkit/actions/runs/123');
   });
 });

src/buildkit/buildkit.ts

@@ -18,7 +18,6 @@ import * as core from '@actions/core';
 import * as exec from '@actions/exec';
 import * as semver from 'semver';
 
-import {Context} from '../context';
 import {Buildx} from '../buildx/buildx';
 import {Builder} from '../buildx/builder';
 import {Config} from './config';
@@ -26,24 +25,17 @@ import {Config} from './config';
 import {BuilderInfo, NodeInfo} from '../types/builder';
 
 export interface BuildKitOpts {
-  context: Context;
   buildx?: Buildx;
 }
 
 export class BuildKit {
-  private readonly context: Context;
   private readonly buildx: Buildx;
 
   public readonly config: Config;
 
-  constructor(opts: BuildKitOpts) {
+  constructor(opts?: BuildKitOpts) {
-    this.context = opts.context;
+    this.config = new Config();
-    this.config = new Config(this.context);
+    this.buildx = opts?.buildx || new Buildx();
-    this.buildx =
-      opts?.buildx ||
-      new Buildx({
-        context: this.context
-      });
   }
 
   public async getVersion(node: NodeInfo): Promise<string | undefined> {
@@ -89,10 +81,7 @@ export class BuildKit {
 
   public async versionSatisfies(builderName: string, range: string, builderInfo?: BuilderInfo): Promise<boolean> {
     if (!builderInfo) {
-      builderInfo = await new Builder({
+      builderInfo = await new Builder({buildx: this.buildx}).inspect(builderName);
-        context: this.context,
-        buildx: this.buildx
-      }).inspect(builderName);
     }
     for (const node of builderInfo.nodes) {
       core.debug(`BuildKit.versionSatisfies ${node}: ${range}`);

src/buildkit/config.ts

@@ -19,12 +19,6 @@ import fs from 'fs';
 import {Context} from '../context';
 
 export class Config {
-  private readonly context: Context;
-
-  constructor(context: Context) {
-    this.context = context;
-  }
-
   public resolveFromString(s: string): string {
     return this.resolve(s, false);
   }
@@ -40,7 +34,7 @@ export class Config {
       }
       s = fs.readFileSync(s, {encoding: 'utf-8'});
     }
-    const configFile = this.context.tmpName({tmpdir: this.context.tmpDir()});
+    const configFile = Context.tmpName({tmpdir: Context.tmpDir()});
     fs.writeFileSync(configFile, s);
     return configFile;
   }

src/buildx/builder.ts

@@ -17,26 +17,18 @@
 import * as exec from '@actions/exec';
 
 import {Buildx} from './buildx';
-import {Context} from '../context';
 
 import {BuilderInfo, NodeInfo} from '../types/builder';
 
 export interface BuilderOpts {
-  context: Context;
   buildx?: Buildx;
 }
 
 export class Builder {
-  private readonly context: Context;
   private readonly buildx: Buildx;
 
-  constructor(opts: BuilderOpts) {
+  constructor(opts?: BuilderOpts) {
-    this.context = opts.context;
+    this.buildx = opts?.buildx || new Buildx();
-    this.buildx =
-      opts?.buildx ||
-      new Buildx({
-        context: this.context
-      });
   }
 
   public async inspect(name: string): Promise<BuilderInfo> {

src/buildx/buildx.ts

@@ -21,13 +21,11 @@ import * as exec from '@actions/exec';
 import * as semver from 'semver';
 
 import {Docker} from '../docker';
-import {Context} from '../context';
 import {Inputs} from './inputs';
 
 import {Cert} from '../types/buildx';
 
 export interface BuildxOpts {
-  context: Context;
   standalone?: boolean;
 }
 
@@ -35,15 +33,13 @@ export class Buildx {
   private _version: string | undefined;
   private readonly _standalone: boolean | undefined;
 
-  private readonly context: Context;
   public readonly inputs: Inputs;
 
   public static readonly containerNamePrefix = 'buildx_buildkit_';
 
-  constructor(opts: BuildxOpts) {
+  constructor(opts?: BuildxOpts) {
     this._standalone = opts?.standalone;
-    this.context = opts.context;
+    this.inputs = new Inputs();
-    this.inputs = new Inputs(this.context);
   }
 
   static get configDir(): string {

src/buildx/inputs.ts

@@ -22,18 +22,12 @@ import {parse} from 'csv-parse/sync';
 import {Context} from '../context';
 
 export class Inputs {
-  private readonly context: Context;
-
-  constructor(context: Context) {
-    this.context = context;
-  }
-
   public getBuildImageIDFilePath(): string {
-    return path.join(this.context.tmpDir(), 'iidfile');
+    return path.join(Context.tmpDir(), 'iidfile');
   }
 
   public getBuildMetadataFilePath(): string {
-    return path.join(this.context.tmpDir(), 'metadata-file');
+    return path.join(Context.tmpDir(), 'metadata-file');
   }
 
   public resolveBuildImageID(): string | undefined {
@@ -89,7 +83,7 @@ export class Inputs {
       }
       value = fs.readFileSync(value, {encoding: 'utf-8'});
     }
-    const secretFile = this.context.tmpName({tmpdir: this.context.tmpDir()});
+    const secretFile = Context.tmpName({tmpdir: Context.tmpDir()});
     fs.writeFileSync(secretFile, value);
     return `id=${key},src=${secretFile}`;
   }
@@ -100,9 +94,8 @@ export class Inputs {
       // if input is not set returns empty string
       return input;
     }
-    const builderID = this.context.provenanceBuilderID;
     try {
-      return core.getBooleanInput(name) ? `builder-id=${builderID}` : 'false';
+      return core.getBooleanInput(name) ? `builder-id=${Context.provenanceBuilderID()}` : 'false';
     } catch (err) {
       // not a valid boolean, so we assume it's a string
       return this.resolveProvenanceAttrs(input);
@@ -111,7 +104,7 @@ export class Inputs {
 
   public resolveProvenanceAttrs(input: string): string {
     if (!input) {
-      return `builder-id=${this.context.provenanceBuilderID}`;
+      return `builder-id=${Context.provenanceBuilderID()}`;
     }
     // parse attributes from input
     const fields = parse(input, {
@@ -129,7 +122,7 @@ export class Inputs {
       }
     }
     // if not add builder-id attribute
-    return `${input},builder-id=${this.context.provenanceBuilderID}`;
+    return `${input},builder-id=${Context.provenanceBuilderID()}`;
   }
 
   public static hasLocalExporter(exporters: string[]): boolean {

src/buildx/install.ts

@@ -32,17 +32,13 @@ import {Git} from '../git';
 import {GitHubRelease} from '../types/github';
 
 export interface InstallOpts {
-  context?: Context;
   standalone?: boolean;
 }
 
 export class Install {
   private readonly _standalone: boolean | undefined;
 
-  private readonly context: Context;
-
   constructor(opts?: InstallOpts) {
-    this.context = opts?.context || new Context();
     this._standalone = opts?.standalone;
   }
 
@@ -84,7 +80,7 @@ export class Install {
     let toolPath: string;
     toolPath = tc.find('buildx', vspec);
     if (!toolPath) {
-      const outputDir = path.join(this.context.tmpDir(), 'build-cache');
+      const outputDir = path.join(Context.tmpDir(), 'build-cache');
       const buildCmd = await this.buildCommand(gitContext, outputDir);
       toolPath = await exec
         .getExecOutput(buildCmd.command, buildCmd.args, {
@@ -103,7 +99,7 @@ export class Install {
 
   public async installStandalone(toolPath: string, dest?: string): Promise<string> {
     core.info('Standalone mode');
-    dest = dest || this.context.tmpDir();
+    dest = dest || Context.tmpDir();
     const toolBinPath = path.join(toolPath, os.platform() == 'win32' ? 'docker-buildx.exe' : 'docker-buildx');
     const binDir = path.join(dest, 'bin');
     if (!fs.existsSync(binDir)) {
@@ -143,8 +139,8 @@ export class Install {
   }
 
   private async buildCommand(gitContext: string, outputDir: string): Promise<{args: Array<string>; command: string}> {
-    const buildxStandaloneFound = await new Buildx({context: this.context, standalone: true}).isAvailable();
+    const buildxStandaloneFound = await new Buildx({standalone: true}).isAvailable();
-    const buildxPluginFound = await new Buildx({context: this.context, standalone: false}).isAvailable();
+    const buildxPluginFound = await new Buildx({standalone: false}).isAvailable();
 
     let buildStandalone = false;
     if ((await this.isStandalone()) && buildxStandaloneFound) {
@@ -164,7 +160,7 @@ export class Install {
     }
 
     //prettier-ignore
-    return await new Buildx({context: this.context, standalone: buildStandalone}).getCommand([
+    return await new Buildx({standalone: buildStandalone}).getCommand([
       'build',
       '--target', 'binaries',
       '--build-arg', 'BUILDKIT_CONTEXT_KEEP_GIT_DIR=1',

src/context.ts

@@ -23,29 +23,32 @@ import * as github from '@actions/github';
 import {GitHub} from './github';
 
 export class Context {
-  public gitRef: string;
+  private static readonly _tmpDir = fs.mkdtempSync(path.join(os.tmpdir(), 'docker-actions-toolkit-'));
-  public buildGitContext: string;
-  public provenanceBuilderID: string;
 
-  private readonly _tmpDir = fs.mkdtempSync(path.join(os.tmpdir(), 'docker-actions-toolkit-'));
+  public static tmpDir(): string {
-
+    return Context._tmpDir;
-  constructor() {
-    this.gitRef = github.context.ref;
-    if (github.context.sha && this.gitRef && !this.gitRef.startsWith('refs/')) {
-      this.gitRef = `refs/heads/${github.context.ref}`;
-    }
-    if (github.context.sha && !this.gitRef.startsWith(`refs/pull/`)) {
-      this.gitRef = github.context.sha;
-    }
-    this.buildGitContext = `${GitHub.serverURL}/${github.context.repo.owner}/${github.context.repo.repo}.git#${this.gitRef}`;
-    this.provenanceBuilderID = `${GitHub.serverURL}/${github.context.repo.owner}/${github.context.repo.repo}/actions/runs/${github.context.runId}`;
   }
 
-  public tmpDir(): string {
+  public static tmpName(options?: tmp.TmpNameOptions): string {
-    return this._tmpDir;
-  }
-
-  public tmpName(options?: tmp.TmpNameOptions): string {
     return tmp.tmpNameSync(options);
   }
+
+  public static gitRef(): string {
+    let gitRef = github.context.ref;
+    if (github.context.sha && gitRef && !gitRef.startsWith('refs/')) {
+      gitRef = `refs/heads/${github.context.ref}`;
+    }
+    if (github.context.sha && !gitRef.startsWith(`refs/pull/`)) {
+      gitRef = github.context.sha;
+    }
+    return gitRef;
+  }
+
+  public static gitContext(): string {
+    return `${GitHub.serverURL}/${github.context.repo.owner}/${github.context.repo.repo}.git#${Context.gitRef()}`;
+  }
+
+  public static provenanceBuilderID(): string {
+    return `${GitHub.serverURL}/${github.context.repo.owner}/${github.context.repo.repo}/actions/runs/${github.context.runId}`;
+  }
 }

src/toolkit.ts

@@ -14,7 +14,6 @@
  * limitations under the License.
  */
 
-import {Context} from './context';
 import {Buildx} from './buildx/buildx';
 import {Install} from './buildx/install';
 import {Builder} from './buildx/builder';
@@ -30,7 +29,6 @@ export interface ToolkitOpts {
 }
 
 export class Toolkit {
-  public context: Context;
   public github: GitHub;
   public buildx: Buildx;
   public buildxInstall: Install;
@@ -38,11 +36,10 @@ export class Toolkit {
   public buildkit: BuildKit;
 
   constructor(opts: ToolkitOpts = {}) {
-    this.context = new Context();
     this.github = new GitHub({token: opts.githubToken});
-    this.buildx = new Buildx({context: this.context});
+    this.buildx = new Buildx();
-    this.buildxInstall = new Install({context: this.context});
+    this.buildxInstall = new Install();
-    this.builder = new Builder({context: this.context, buildx: this.buildx});
+    this.builder = new Builder({buildx: this.buildx});
-    this.buildkit = new BuildKit({context: this.context, buildx: this.buildx});
+    this.buildkit = new BuildKit({buildx: this.buildx});
   }
 }