build-push-action/src/main.ts

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import * as os from 'os';
import * as buildx from './buildx';
import {Inputs, loadInputs, mustBuildx} from './context-helper';
import {Image, parseImage} from './docker';
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();
const buildxAvailable = await buildx.isAvailable();
const buildxInstalled = buildxAvailable && (await buildx.isInstalled());
const buildxEnabled = (await mustBuildx(inputs)) || buildxInstalled;
let buildArgs: Array<string> = [];
// Check buildx
if (buildxEnabled) {
if (!buildxAvailable) {
core.setFailed(`Buildx is required but not available`);
return;
}
core.info(`🚀 Buildx will be used to build your image`);
buildArgs.push('buildx', 'build');
} else {
buildArgs.push('build');
}
// Global options
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');
}
// Buildx options
if (buildxEnabled) {
if (inputs.builder) {
core.info(`📌 Using builder 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);
});
}
buildArgs.push(inputs.context);
core.info(`🏃 Starting build...`);
await exec.exec('docker', buildArgs);
if (!buildxEnabled && inputs.push) {
let pushRepos: Array<string> = [];
await asyncForEach(inputs.tags, async tag => {
const img: Image | undefined = await parseImage(tag);
if (!img) {
core.warning(`Cannot parse image reference ${tag}`);
return;
}
const repo: string = `${img.registry}${img.namespace}${img.repository}`;
if (!pushRepos.includes(repo)) {
pushRepos.push(repo);
core.info(`⬆️ Pushing ${repo}...`);
await exec.exec('docker', ['push', repo]);
}
});
}
} 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();