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Fix livepush to work with node 16

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This also improves the memory efficiency of the sync mechanism by
calculating the stage ids on the fly instead of storing the full
build output in memory and then parsing the string.
This commit is contained in:
Felipe Lalanne 2022-09-20 11:56:22 -03:00
parent b168cc35a0
commit b207c01988
3 changed files with 46 additions and 50 deletions
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55
sync/device.ts
View File

@ -5,8 +5,9 @@ import { Builder } from 'resin-docker-build';
import { promises as fs } from 'fs';
import * as Path from 'path';
import { Duplex, Readable, PassThrough, Stream } from 'stream';
import { Readable } from 'stream';
import * as tar from 'tar-stream';
import * as readline from 'readline';
import { exec } from '../src/lib/fs-utils';
@ -52,7 +53,7 @@ export async function getDeviceArch(docker: Docker): Promise<string> {
}
return arch.trim();
} catch (e) {
} catch (e: any) {
throw new Error(
`Unable to get device architecture: ${e.message}.\nTry specifying the architecture with -a.`,
);
@ -68,31 +69,61 @@ export async function getCacheFrom(docker: Docker): Promise<string[]> {
}
}
// Source: https://github.com/balena-io/balena-cli/blob/f6d668684a6f5ea8102a964ca1942b242eaa7ae2/lib/utils/device/live.ts#L539-L547
function extractDockerArrowMessage(outputLine: string): string | undefined {
const arrowTest = /^.*\s*-+>\s*(.+)/i;
const match = arrowTest.exec(outputLine);
if (match != null) {
return match[1];
}
}
export async function performBuild(
docker: Docker,
dockerfile: Dockerfile,
dockerOpts: { [key: string]: any },
): Promise<string> {
): Promise<string[]> {
const builder = Builder.fromDockerode(docker);
// tar the directory, but replace the dockerfile with the
// livepush generated one
const tarStream = await tarDirectory(Path.join(__dirname, '..'), dockerfile);
const bufStream = new PassThrough();
return new Promise((resolve, reject) => {
const chunks = [] as Buffer[];
bufStream.on('data', (chunk) => chunks.push(Buffer.from(chunk)));
// Store the stage ids for caching
const ids = [] as string[];
builder.createBuildStream(dockerOpts, {
buildSuccess: () => {
// Return the build logs
resolve(Buffer.concat(chunks).toString('utf8'));
// Return the image ids
resolve(ids);
},
buildFailure: reject,
buildStream: (stream: Duplex) => {
stream.pipe(process.stdout);
stream.pipe(bufStream);
tarStream.pipe(stream);
buildStream: (input: NodeJS.ReadWriteStream) => {
// Parse the build output to get stage ids and
// for logging
let lastArrowMessage: string | undefined;
readline.createInterface({ input }).on('line', (line) => {
// If this was a FROM line, take the last found
// image id and save it as a stage id
// Source: https://github.com/balena-io/balena-cli/blob/f6d668684a6f5ea8102a964ca1942b242eaa7ae2/lib/utils/device/live.ts#L300-L325
if (
/step \d+(?:\/\d+)?\s*:\s*FROM/i.test(line) &&
lastArrowMessage != null
) {
ids.push(lastArrowMessage);
} else {
const msg = extractDockerArrowMessage(line);
if (msg != null) {
lastArrowMessage = msg;
}
}
// Log the build line
console.info(line);
});
// stream.pipe(bufStream);
tarStream.pipe(input);
},
});
});

37
sync/init.ts
View File

@ -14,39 +14,6 @@ interface Opts {
arch?: string;
}
// Source: https://github.com/balena-io/balena-cli/blob/f6d668684a6f5ea8102a964ca1942b242eaa7ae2/lib/utils/device/live.ts#L539-L547
function extractDockerArrowMessage(outputLine: string): string | undefined {
const arrowTest = /^.*\s*-+>\s*(.+)/i;
const match = arrowTest.exec(outputLine);
if (match != null) {
return match[1];
}
}
// Source: https://github.com/balena-io/balena-cli/blob/f6d668684a6f5ea8102a964ca1942b242eaa7ae2/lib/utils/device/live.ts#L300-L325
function getMultiStateImageIDs(buildLog: string): string[] {
const ids = [] as string[];
const lines = buildLog.split(/\r?\n/);
let lastArrowMessage: string | undefined;
for (const line of lines) {
// If this was a from line, take the last found
// image id and save it
if (
/step \d+(?:\/\d+)?\s*:\s*FROM/i.test(line) &&
lastArrowMessage != null
) {
ids.push(lastArrowMessage);
} else {
const msg = extractDockerArrowMessage(line);
if (msg != null) {
lastArrowMessage = msg;
}
}
}
return ids;
}
function getPathPrefix(arch: string) {
switch (arch) {
/**
@ -74,7 +41,7 @@ export async function initDevice(opts: Opts) {
const buildCache = await device.readBuildCache(opts.address);
const buildLog = await device.performBuild(opts.docker, opts.dockerfile, {
const stageImages = await device.performBuild(opts.docker, opts.dockerfile, {
buildargs: { ARCH: arch, PREFIX: getPathPrefix(arch) },
t: image,
labels: { 'io.balena.livepush-image': '1', 'io.balena.architecture': arch },
@ -84,8 +51,6 @@ export async function initDevice(opts: Opts) {
nocache: opts.nocache,
});
const stageImages = getMultiStateImageIDs(buildLog);
// Store the list of stage images for the next time the sync
// command is called. This will only live until the device is rebooted
await device.writeBuildCache(opts.address, stageImages);

4
sync/sync.ts
View File

@ -93,12 +93,12 @@ const argv = yargs
sigint = () => reject(new Error('User interrupt (Ctrl+C) received'));
process.on('SIGINT', sigint);
});
} catch (e) {
} catch (e: any) {
console.error('Error:', e.message);
} finally {
console.info('Cleaning up. Please wait ...');
await cleanup();
process.removeListener('SIGINT', sigint);
process.exit(1);
process.exit(0);
}
})();