Build push action v2

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

src/buildx.ts

@@ -0,0 +1,18 @@
+import * as exec from './exec';
+
+export async function isAvailable(): Promise<Boolean> {
+  return await exec.exec(`docker`, ['buildx'], true).then(res => {
+    if (res.stderr != '' && !res.success) {
+      return false;
+    }
+    return res.success;
+  });
+}
+
+export async function use(builder: string): Promise<void> {
+  return await exec.exec(`docker`, ['buildx', 'use', '--builder', builder], false).then(res => {
+    if (res.stderr != '' && !res.success) {
+      throw new Error(res.stderr);
+    }
+  });
+}

src/context-helper.ts

@@ -0,0 +1,58 @@
+import * as core from '@actions/core';
+
+export interface Inputs {
+  context: string;
+  file: string;
+  buildArgs: string[];
+  labels: string[];
+  tags: string[];
+  pull: boolean;
+  target: string;
+  noCache: boolean;
+  builder: string;
+  platforms: string;
+  load: boolean;
+  push: boolean;
+  outputs: string[];
+  cacheFrom: string[];
+  cacheTo: string[];
+}
+
+export async function loadInputs(): Promise<Inputs> {
+  return {
+    context: core.getInput('context') || '.',
+    file: core.getInput('file') || './Dockerfile',
+    buildArgs: await getInputList('build-args'),
+    labels: await getInputList('labels'),
+    tags: await getInputList('tags'),
+    pull: /true/i.test(core.getInput('pull')),
+    target: core.getInput('target'),
+    noCache: /true/i.test(core.getInput('no-cache')),
+    builder: core.getInput('builder'),
+    platforms: core.getInput('platforms'),
+    load: /true/i.test(core.getInput('load')),
+    push: /true/i.test(core.getInput('push')),
+    outputs: await getInputList('outputs'),
+    cacheFrom: await getInputList('cache-from'),
+    cacheTo: await getInputList('cache-to')
+  };
+}
+
+export async function mustBuildx(inputs: Inputs): Promise<boolean> {
+  return (
+    inputs.builder.length > 0 ||
+    inputs.platforms.length > 0 ||
+    inputs.push ||
+    inputs.outputs.length > 0 ||
+    inputs.cacheFrom.length > 0 ||
+    inputs.cacheTo.length > 0
+  );
+}
+
+async function getInputList(name: string): Promise<string[]> {
+  const items = core.getInput(name);
+  if (items == '') {
+    return [];
+  }
+  return items.split(/\r?\n/).reduce<string[]>((acc, line) => acc.concat(line.split(',')).map(pat => pat.trim()), []);
+}

src/exec.ts

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+import * as aexec from '@actions/exec';
+import {ExecOptions} from '@actions/exec';
+
+export interface ExecResult {
+  success: boolean;
+  stdout: string;
+  stderr: string;
+}
+
+export const exec = async (command: string, args: string[] = [], silent: boolean): Promise<ExecResult> => {
+  let stdout: string = '';
+  let stderr: string = '';
+
+  const options: ExecOptions = {
+    silent: silent,
+    ignoreReturnCode: true
+  };
+  options.listeners = {
+    stdout: (data: Buffer) => {
+      stdout += data.toString();
+    },
+    stderr: (data: Buffer) => {
+      stderr += data.toString();
+    }
+  };
+
+  const returnCode: number = await aexec.exec(command, args, options);
+
+  return {
+    success: returnCode === 0,
+    stdout: stdout.trim(),
+    stderr: stderr.trim()
+  };
+};

src/main.ts

@@ -0,0 +1,85 @@
+import * as os from 'os';
+import * as buildx from './buildx';
+import {Inputs, loadInputs, mustBuildx} from './context-helper';
+import * as core from '@actions/core';
+import * as exec from '@actions/exec';
+
+async function run(): Promise<void> {
+  try {
+    if (os.platform() !== 'linux') {
+      core.setFailed('Only supported on linux platform');
+      return;
+    }
+
+    const inputs: Inputs = await loadInputs();
+    let buildArgs: Array<string> = [];
+
+    // Check buildx
+    if (await mustBuildx(inputs)) {
+      if (await !buildx.isAvailable()) {
+        throw new Error(`Buildx is required but not available`);
+      }
+      core.info(`🚀 Buildx will be used to build your image`);
+      buildArgs.push('buildx', 'build');
+    } else {
+      buildArgs.push('build');
+    }
+
+    if (inputs.file) {
+      buildArgs.push('--file', inputs.file);
+    }
+    await asyncForEach(inputs.buildArgs, async buildArg => {
+      buildArgs.push('--build-arg', buildArg);
+    });
+    await asyncForEach(inputs.labels, async label => {
+      buildArgs.push('--label', label);
+    });
+    await asyncForEach(inputs.tags, async tag => {
+      buildArgs.push('--tag', tag);
+    });
+    if (inputs.pull) {
+      buildArgs.push('--pull');
+    }
+    if (inputs.target) {
+      buildArgs.push('--target', inputs.target);
+    }
+    if (inputs.noCache) {
+      buildArgs.push('--no-cache');
+    }
+    if (inputs.builder) {
+      core.info(`📌 Using build instance ${inputs.builder}`);
+      await buildx.use(inputs.builder);
+    }
+    if (inputs.platforms) {
+      buildArgs.push('--platform', inputs.platforms);
+    }
+    if (inputs.load) {
+      buildArgs.push('--load');
+    }
+    if (inputs.push) {
+      buildArgs.push('--push');
+    }
+    await asyncForEach(inputs.outputs, async output => {
+      buildArgs.push('--output', output);
+    });
+    await asyncForEach(inputs.cacheFrom, async cacheFrom => {
+      buildArgs.push('--cache-from', cacheFrom);
+    });
+    await asyncForEach(inputs.cacheTo, async cacheTo => {
+      buildArgs.push('--cache-from', cacheTo);
+    });
+
+    core.info(`🏃 Starting build...`);
+    await exec.exec('docker', buildArgs);
+  } catch (error) {
+    core.setFailed(error.message);
+  }
+}
+
+const asyncForEach = async (array, callback) => {
+  for (let index = 0; index < array.length; index++) {
+    await callback(array[index], index, array);
+  }
+};
+
+run();