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resin-multibuild

This module is designed to make it easy to build a composition given a representation of this composition, and a tar stream. The output will be several images present on the given docker daemon.

API

splitBuildStream

function splitBuildStream(composition: Composition, buildStream: ReadableStream): Promise<BuildTask[]>

Given a Composition which conforms to the type from resin-compose-parse and a stream which will produce a tar archive, split this tar archive into a set of build tasks which can then be further processed.

function performResolution(
	tasks: BuildTask[],
	architecture: string,
	deviceType: string
): Promise<BuildTask[]>

Given a list of build tasks, resolve the projects to a form which the docker daemon can build. Currently this function supports all project types which resin-bundle-resolve supports.

Note that this function will also populate the dockerfile and projectType values in the build tasks.

function performBuilds(
	tasks: BuildTask[],
	docker: Dockerode
): Promise<LocalImage[]>

Given a list of build tasks, perform the task necessary for the LocalImage to be produced. A local image represents an image present on the docker daemon given.

Note that one should assign a stream handling function for build output OR a progress handling function for image pull output before calling this function. The fields for these functions are streamHook and progressHook.

Example (pseudocode)

import * as Promise from 'bluebird';

import { Composition, normalize } from 'resin-compose-parse';
import { splitBuildStream, performBuilds } from 'resin-multibuild';


// Get a tar stream and composition from somewhere
const stream = getBuildStream();
const composeFile = getComposeFile();
const docker = getDockerodeHandle();

// Parse the compose file
const comp = normalize(composeFile);

splitBuildStream(comp, stream)
.then((tasks) => {
	return performResolution(tasks, 'armv7hf', 'raspberrypi3');
})
.map((task) => {
	if (task.external) {
		task.progressHook = (progress) => {
			console.log(task.serviceName + ': ' + progress);
		};
	} else {
		task.streamHook = (stream) => {
			stream.on('data', (data) => {
				console.log(task.serviceName + ': ', data.toString());
			});
		};
	}
	return task;
})
.then((tasks) => {
	return performBuilds(builds, docker);
})
.then((images) => {
	// Do something with your images
});