docker-setup-qemu-action/src/main.ts

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import * as context from './context';
import * as core from '@actions/core';
import * as actionsToolkit from '@docker/actions-toolkit';
import {Docker} from '@docker/actions-toolkit/lib/docker';
import {Exec} from '@docker/actions-toolkit/lib/exec';
interface Platforms {
supported: string[];
available: string[];
}
actionsToolkit.run(
// main
async () => {
const input: context.Inputs = context.getInputs();
await core.group(`Docker info`, async () => {
await Docker.printVersion();
await Docker.printInfo();
});
await core.group(`Pulling binfmt Docker image`, async () => {
await Exec.exec('docker', ['pull', input.image]);
});
await core.group(`Image info`, async () => {
await Exec.exec('docker', ['image', 'inspect', input.image]);
});
await core.group(`Installing QEMU static binaries`, async () => {
await Exec.exec('docker', ['run', '--rm', '--privileged', input.image, '--install', input.platforms]);
});
await core.group(`Extracting available platforms`, async () => {
await Exec.getExecOutput('docker', ['run', '--rm', '--privileged', input.image], {
ignoreReturnCode: true,
silent: true
}).then(res => {
if (res.stderr.length > 0 && res.exitCode != 0) {
throw new Error(res.stderr.trim());
}
const platforms: Platforms = JSON.parse(res.stdout.trim());
core.info(`${platforms.supported.join(',')}`);
core.setOutput('platforms', platforms.supported.join(','));
});
});
}
);