unity-builder/src/model/system.ts

138 lines
3.7 KiB
TypeScript

import { exec } from '../dependencies.ts';
export interface ShellRunOptions {
pwd: string;
}
class System {
/**
* Run any command as if you're typing in shell.
* Make sure it's Windows/MacOS/Ubuntu compatible or has alternative commands.
*
* Intended to always be silent and capture the output.
*/
static async shellRun(rawCommand: string, options: ShellRunOptions = {}) {
const { pwd } = options;
let command = rawCommand;
if (pwd) command = `cd ${pwd} ; ${command}`;
return System.newRun('sh', ['-c', command]);
}
/**
* Example:
* System.newRun(sh, ['-c', 'echo something'])
*
* private for now, but could become public if this happens to be a great replacement for the other run method.
*/
private static async newRun(command, args: string | string[] = []) {
if (!Array.isArray(args)) args = [args];
const argsString = args.join(' ');
const process = Deno.run({
cmd: [command, ...args],
stdout: 'piped',
stderr: 'piped',
});
const status = await process.status();
const outputBuffer = await process.output();
const errorBuffer = await process.stderrOutput();
process.close();
const output = new TextDecoder().decode(outputBuffer).replace(/\n+$/, '');
const error = new TextDecoder().decode(errorBuffer).replace(/\n+$/, '');
const result = { status, output };
// Log command output if verbose is enabled
if (log.isVeryVerbose) {
const symbol = status.success ? '✅' : '❗';
const truncatedOutput = output.length >= 30 ? `${output.slice(0, 27)}...` : output;
log.debug('Command:', command, argsString, symbol, {
status,
output: log.isMaxVerbose ? output : truncatedOutput,
});
}
if (error) throw new Error(error);
return result;
}
/**
* @deprecated use more simplified `shellRun` if possible.
*/
static async run(command, arguments_: any = [], options = {}, shouldLog = true) {
let result = '';
let error = '';
let debug = '';
const listeners = {
stdout: (dataBuffer) => {
result += dataBuffer.toString();
},
stderr: (dataBuffer) => {
error += dataBuffer.toString();
},
debug: (dataString) => {
debug += dataString.toString();
},
};
const showOutput = () => {
if (debug !== '' && shouldLog) {
log.debug(debug);
}
if (result !== '' && shouldLog) {
log.info(result);
}
if (error !== '' && shouldLog) {
log.warning(error);
}
};
const throwContextualError = (message: string) => {
let commandAsString = command;
if (Array.isArray(arguments_)) {
commandAsString += ` ${arguments_.join(' ')}`;
} else if (typeof arguments_ === 'string') {
commandAsString += ` ${arguments_}`;
}
throw new Error(`Failed to run "${commandAsString}".\n ${message}`);
};
try {
if (command.trim() === '') {
throw new Error(`Failed to execute empty command`);
}
const { exitCode, success, output } = await exec(command, arguments_, { silent: true, listeners, ...options });
showOutput();
if (!success) {
throwContextualError(`Command returned non-zero exit code (${exitCode}).\nError: ${error}`);
}
// Todo - remove this after verifying it works as expected
const trimmedResult = result.replace(/\n+$/, '');
if (!output && trimmedResult) {
log.warning('returning result instead of output for backward compatibility');
return trimmedResult;
}
return output;
} catch (inCommandError) {
showOutput();
throwContextualError(`In-command error caught: ${inCommandError}`);
}
}
}
export default System;