mirror of
https://github.com/balena-io/balena-cli.git
synced 2024-12-25 08:21:04 +00:00
130 lines
3.6 KiB
JavaScript
130 lines
3.6 KiB
JavaScript
/**
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* @license
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* Copyright 2017-2020 Balena Ltd.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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import * as Promise from 'bluebird';
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import { getBalenaSdk } from './lazy';
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export const QEMU_VERSION = 'v4.0.0+balena2';
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export const QEMU_BIN_NAME = 'qemu-execve';
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export function qemuPathInContext(context) {
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const path = require('path');
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const binDir = path.join(context, '.balena');
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const binPath = path.join(binDir, QEMU_BIN_NAME);
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return path.relative(context, binPath);
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}
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export function copyQemu(context, arch) {
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const path = require('path');
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const fs = require('mz/fs');
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// Create a hidden directory in the build context, containing qemu
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const binDir = path.join(context, '.balena');
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const binPath = path.join(binDir, QEMU_BIN_NAME);
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return Promise.resolve(fs.mkdir(binDir))
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.catch({ code: 'EEXIST' }, function() {
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// noop
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})
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.then(() => getQemuPath(arch))
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.then(
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qemu =>
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new Promise(function(resolve, reject) {
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const read = fs.createReadStream(qemu);
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const write = fs.createWriteStream(binPath);
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read
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.on('error', reject)
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.pipe(write)
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.on('error', reject)
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.on('finish', resolve);
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}),
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)
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.then(() => fs.chmod(binPath, '755'))
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.then(() => path.relative(context, binPath));
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}
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export const getQemuPath = function(arch) {
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const balena = getBalenaSdk();
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const path = require('path');
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const fs = require('mz/fs');
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return balena.settings.get('binDirectory').then(binDir =>
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Promise.resolve(fs.mkdir(binDir))
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.catch({ code: 'EEXIST' }, function() {
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// noop
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})
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.then(() =>
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path.join(binDir, `${QEMU_BIN_NAME}-${arch}-${QEMU_VERSION}`),
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),
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);
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};
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export function installQemu(arch) {
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const request = require('request');
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const fs = require('fs');
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const zlib = require('zlib');
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const tar = require('tar-stream');
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return getQemuPath(arch).then(
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qemuPath =>
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new Promise(function(resolve, reject) {
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const installStream = fs.createWriteStream(qemuPath);
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const qemuArch = balenaArchToQemuArch(arch);
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const fileVersion = QEMU_VERSION.replace(/^v/, '').replace('+', '.');
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const urlFile = encodeURIComponent(
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`qemu-${fileVersion}-${qemuArch}.tar.gz`,
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);
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const urlVersion = encodeURIComponent(QEMU_VERSION);
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const qemuUrl = `https://github.com/balena-io/qemu/releases/download/${urlVersion}/${urlFile}`;
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const extract = tar.extract();
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extract.on('entry', function(header, stream, next) {
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stream.on('end', next);
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if (header.name.includes(`qemu-${qemuArch}-static`)) {
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stream.pipe(installStream);
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} else {
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stream.resume();
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}
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});
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return request(qemuUrl)
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.on('error', reject)
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.pipe(zlib.createGunzip())
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.on('error', reject)
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.pipe(extract)
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.on('error', reject)
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.on('finish', function() {
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fs.chmodSync(qemuPath, '755');
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resolve();
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});
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}),
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);
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}
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var balenaArchToQemuArch = function(arch) {
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switch (arch) {
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case 'armv7hf':
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case 'rpi':
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case 'armhf':
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return 'arm';
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case 'aarch64':
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return 'aarch64';
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default:
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throw new Error(`Cannot install emulator for architecture ${arch}`);
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}
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};
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