Sonu Kapoor 15ae924035 fix(docs-infra): convert hard-coded cli-builder examples into a proper mini-app (#34362)
Previously, the examples in the `cli-builder` guide were hard-coded.
This made it impossible to test them and verify they are correct.

This commit fixes this by converting them into a proper mini-app. In a
subsequent commit, tests will be added to verify that the source code
works as expected (and guard against regressions).

Fixes #34314

PR Close #34362
2020-01-21 13:12:18 -05:00

47 lines
1.4 KiB
TypeScript

// #docplaster
// #docregion builder, builder-skeleton, handling-output, progress-reporting
import { BuilderContext, BuilderOutput, createBuilder } from '@angular-devkit/architect';
import { JsonObject } from '@angular-devkit/core';
// #enddocregion builder-skeleton
import * as childProcess from 'child_process';
// #docregion builder-skeleton
interface Options extends JsonObject {
command: string;
args: string[];
}
export default createBuilder(commandBuilder);
function commandBuilder(
options: Options,
context: BuilderContext,
): Promise<BuilderOutput> {
// #enddocregion builder, builder-skeleton, handling-output
// #docregion report-status
context.reportStatus(`Executing "${options.command}"...`);
// #docregion builder, handling-output
const child = childProcess.spawn(options.command, options.args);
// #enddocregion builder, report-status
child.stdout.on('data', data => {
context.logger.info(data.toString());
});
child.stderr.on('data', data => {
context.logger.error(data.toString());
});
// #docregion builder
return new Promise(resolve => {
// #enddocregion builder, handling-output
context.reportStatus(`Done.`);
// #docregion builder, handling-output
child.on('close', code => {
resolve({ success: code === 0 });
});
});
// #docregion builder-skeleton
}
// #enddocregion builder, builder-skeleton, handling-output, progress-reporting