Do not set --iidfile flag if local and tar exporters are used

More tests for context module

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

__tests__/buildx.test.ts

@@ -1,10 +1,24 @@
-import fs from 'fs';
+import * as fs from 'fs';
+import * as path from 'path';
 import * as semver from 'semver';
 import * as buildx from '../src/buildx';
 import * as exec from '@actions/exec';
+import * as context from '../src/context';
 
 const digest = 'sha256:bfb45ab72e46908183546477a08f8867fc40cebadd00af54b071b097aed127a9';
 
+jest.spyOn(context, 'tmpDir').mockImplementation((): string => {
+  const tmpDir = path.join('/tmp/.docker-build-push-jest').split(path.sep).join(path.posix.sep);
+  if (!fs.existsSync(tmpDir)) {
+    fs.mkdirSync(tmpDir, {recursive: true});
+  }
+  return tmpDir;
+});
+
+jest.spyOn(context, 'tmpNameSync').mockImplementation((): string => {
+  return path.join('/tmp/.docker-build-push-jest', '.tmpname-jest').split(path.sep).join(path.posix.sep);
+});
+
 describe('getImageID', () => {
   it('matches', async () => {
     const imageIDFile = await buildx.getImageIDFile();

__tests__/context.test.ts

@@ -1,4 +1,125 @@
+import * as fs from 'fs';
+import * as path from 'path';
 import * as context from '../src/context';
+import * as buildx from '../src/buildx';
+
+jest.spyOn(context, 'defaultContext').mockImplementation((): string => {
+  return 'https://github.com/docker/build-push-action.git#test-jest';
+});
+
+jest.spyOn(context, 'tmpDir').mockImplementation((): string => {
+  const tmpDir = path.join('/tmp/.docker-build-push-jest').split(path.sep).join(path.posix.sep);
+  if (!fs.existsSync(tmpDir)) {
+    fs.mkdirSync(tmpDir, {recursive: true});
+  }
+  return tmpDir;
+});
+
+jest.spyOn(context, 'tmpNameSync').mockImplementation((): string => {
+  return path.join('/tmp/.docker-build-push-jest', '.tmpname-jest').split(path.sep).join(path.posix.sep);
+});
+
+describe('getArgs', () => {
+  beforeEach(() => {
+    process.env = Object.keys(process.env).reduce((object, key) => {
+      if (!key.startsWith('INPUT_')) {
+        object[key] = process.env[key];
+      }
+      return object;
+    }, {});
+  });
+
+  // prettier-ignore
+  test.each([
+    [
+      '0.4.2',
+      new Map<string, string>([
+        // noop
+      ]),
+      [
+        'buildx',
+        'build',
+        '--iidfile',
+        '/tmp/.docker-build-push-jest/iidfile',
+        '--file',
+        'Dockerfile',
+        'https://github.com/docker/build-push-action.git#test-jest'
+      ]
+    ],
+    [
+      '0.4.2',
+      new Map<string, string>([
+        ['context', '.'],
+        ['outputs', 'type=local,dest=./release-out']
+      ]),
+      [
+        'buildx',
+        'build',
+        '--output', 'type=local,dest=./release-out',
+        '--file', 'Dockerfile',
+        '.'
+      ]
+    ],
+    [
+      '0.4.1',
+      new Map<string, string>([
+        ['context', '.']
+      ]),
+      [
+        'buildx',
+        'build',
+        '--file', 'Dockerfile',
+        '.'
+      ]
+    ],
+    [
+      '0.4.2',
+      new Map<string, string>([
+        ['context', '.'],
+        ['secrets', 'GIT_AUTH_TOKEN=abcdefghijklmno0123456789'],
+      ]),
+      [
+        'buildx',
+        'build',
+        '--iidfile',
+        '/tmp/.docker-build-push-jest/iidfile',
+        '--secret',
+        'id=GIT_AUTH_TOKEN,src=/tmp/.docker-build-push-jest/.tmpname-jest',
+        '--file', 'Dockerfile',
+        '.'
+      ]
+    ],
+    [
+      '0.4.2',
+      new Map<string, string>([
+        ['github-token', 'abcdefghijklmno0123456789']
+      ]),
+      [
+        'buildx',
+        'build',
+        '--iidfile',
+        '/tmp/.docker-build-push-jest/iidfile',
+        '--secret',
+        'id=GIT_AUTH_TOKEN,src=/tmp/.docker-build-push-jest/.tmpname-jest',
+        '--file', 'Dockerfile',
+        'https://github.com/docker/build-push-action.git#test-jest'
+      ]
+    ]
+  ])(
+    'given %p with %p as inputs, returns %p',
+    async (buildxVersion: string, inputs: Map<string, any>, expected: Array<string>) => {
+      await inputs.forEach((value: string, name: string) => {
+        setInput(name, value);
+      });
+      const defContext = context.defaultContext();
+      const inp = await context.getInputs(defContext);
+      console.log(inp);
+      const res = await context.getArgs(inp, defContext, buildxVersion);
+      console.log(res);
+      expect(res).toEqual(expected);
+    }
+  );
+});
 
 describe('getInputList', () => {
   it('handles single line correctly', async () => {

jest.config.js

@@ -1,5 +1,5 @@
 module.exports = {
-  clearMocks: true,
+  clearMocks: false,
   moduleFileExtensions: ['js', 'ts'],
   setupFiles: ["dotenv/config"],
   testEnvironment: 'node',

src/buildx.ts

@@ -1,12 +1,11 @@
 import fs from 'fs';
 import path from 'path';
-import tmp from 'tmp';
 import * as semver from 'semver';
 import * as context from './context';
 import * as exec from './exec';
 
 export async function getImageIDFile(): Promise<string> {
-  return path.join(context.tmpDir, 'iidfile');
+  return path.join(context.tmpDir(), 'iidfile').split(path.sep).join(path.posix.sep);
 }
 
 export async function getImageID(): Promise<string | undefined> {
@@ -19,8 +18,8 @@ export async function getImageID(): Promise<string | undefined> {
 
 export async function getSecret(kvp: string): Promise<string> {
   const [key, value] = kvp.split('=');
-  const secretFile = tmp.tmpNameSync({
+  const secretFile = context.tmpNameSync({
-    tmpdir: context.tmpDir
+    tmpdir: context.tmpDir()
   });
   await fs.writeFileSync(secretFile, value);
   return `id=${key},src=${secretFile}`;

src/context.ts

@@ -2,15 +2,11 @@ import * as fs from 'fs';
 import * as os from 'os';
 import * as path from 'path';
 import * as semver from 'semver';
+import * as tmp from 'tmp';
 import * as buildx from './buildx';
 import * as core from '@actions/core';
 import * as github from '@actions/github';
 
-export const tmpDir: string = fs.mkdtempSync(path.join(os.tmpdir(), 'docker-build-push-'));
-const defaultContext: string = `https://github.com/${github.context.repo.owner}/${
-  github.context.repo.repo
-}.git#${github.context.ref.replace(/^refs\//, '')}`;
-
 export interface Inputs {
   context: string;
   file: string;
@@ -32,7 +28,21 @@ export interface Inputs {
   githubToken: string;
 }
 
-export async function getInputs(): Promise<Inputs> {
+export function defaultContext(): string {
+  return `https://github.com/${github.context.repo.owner}/${
+    github.context.repo.repo
+  }.git#${github.context?.ref?.replace(/^refs\//, '')}`;
+}
+
+export function tmpDir(): string {
+  return fs.mkdtempSync(path.join(os.tmpdir(), 'docker-build-push-')).split(path.sep).join(path.posix.sep);
+}
+
+export function tmpNameSync(options?: tmp.TmpNameOptions): string {
+  return tmp.tmpNameSync(options);
+}
+
+export async function getInputs(defaultContext: string): Promise<Inputs> {
   return {
     context: core.getInput('context') || defaultContext,
     file: core.getInput('file') || 'Dockerfile',
@@ -55,15 +65,15 @@ export async function getInputs(): Promise<Inputs> {
   };
 }
 
-export async function getArgs(inputs: Inputs, buildxVersion: string): Promise<Array<string>> {
+export async function getArgs(inputs: Inputs, defaultContext: string, buildxVersion: string): Promise<Array<string>> {
   let args: Array<string> = ['buildx'];
-  args.push.apply(args, await getBuildArgs(inputs, buildxVersion));
+  args.push.apply(args, await getBuildArgs(inputs, defaultContext, buildxVersion));
   args.push.apply(args, await getCommonArgs(inputs));
   args.push(inputs.context);
   return args;
 }
 
-async function getBuildArgs(inputs: Inputs, buildxVersion: string): Promise<Array<string>> {
+async function getBuildArgs(inputs: Inputs, defaultContext: string, buildxVersion: string): Promise<Array<string>> {
   let args: Array<string> = ['build'];
   await asyncForEach(inputs.buildArgs, async buildArg => {
     args.push('--build-arg', buildArg);
@@ -83,12 +93,17 @@ async function getBuildArgs(inputs: Inputs, buildxVersion: string): Promise<Arra
   if (inputs.platforms.length > 0) {
     args.push('--platform', inputs.platforms.join(','));
   }
-  if (inputs.platforms.length == 0 || semver.satisfies(buildxVersion, '>=0.4.2')) {
+  let isLocalOrTarExporter: boolean = false;
-    args.push('--iidfile', await buildx.getImageIDFile());
-  }
   await asyncForEach(inputs.outputs, async output => {
+    if (output.startsWith('type=local') || output.startsWith('type=tar')) {
+      isLocalOrTarExporter = true;
+    }
     args.push('--output', output);
   });
+  // TODO: Remove platforms length cond when buildx >0.4.2 available on runner (docker/buildx#351)
+  if (inputs.platforms.length == 0 && !isLocalOrTarExporter && semver.satisfies(buildxVersion, '>=0.4.2')) {
+    args.push('--iidfile', await buildx.getImageIDFile());
+  }
   await asyncForEach(inputs.cacheFrom, async cacheFrom => {
     args.push('--cache-from', cacheFrom);
   });

src/main.ts

@@ -17,15 +17,16 @@ async function run(): Promise<void> {
       core.setFailed(`Buildx is required. See https://github.com/docker/setup-buildx-action to set up buildx.`);
       return;
     }
-    stateHelper.setTmpDir(context.tmpDir);
+    stateHelper.setTmpDir(context.tmpDir());
 
     const buildxVersion = await buildx.getVersion();
     core.info(`📣 Buildx version: ${buildxVersion}`);
 
-    let inputs: context.Inputs = await context.getInputs();
+    const defContext = context.defaultContext();
+    let inputs: context.Inputs = await context.getInputs(defContext);
 
     core.info(`🏃 Starting build...`);
-    const args: string[] = await context.getArgs(inputs, buildxVersion);
+    const args: string[] = await context.getArgs(inputs, defContext, buildxVersion);
     await exec.exec('docker', args);
 
     const imageID = await buildx.getImageID();