/
concurrently.ts
executable file
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/
concurrently.ts
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#!/usr/bin/env node
import yargs from 'yargs';
import { hideBin } from 'yargs/helpers';
import * as defaults from '../src/defaults';
import concurrently from '../src/index';
import { epilogue } from './epilogue';
// Clean-up arguments (yargs expects only the arguments after the program name)
const cleanArgs = hideBin(process.argv);
// Find argument separator (double dash)
const argsSepIdx = cleanArgs.findIndex((arg) => arg === '--');
// Arguments before separator
const argsBeforeSep = argsSepIdx >= 0 ? cleanArgs.slice(0, argsSepIdx) : cleanArgs;
// Arguments after separator
const argsAfterSep = argsSepIdx >= 0 ? cleanArgs.slice(argsSepIdx + 1) : [];
const args = yargs(argsBeforeSep)
.usage('$0 [options] <command ...>')
.help('h')
.alias('h', 'help')
.version()
.alias('version', 'v')
.alias('version', 'V')
// TODO: Add some tests for this.
.env('CONCURRENTLY')
.options({
// General
'max-processes': {
alias: 'm',
describe:
'How many processes should run at once.\n' +
'New processes only spawn after all restart tries of a process.',
type: 'number',
},
'names': {
alias: 'n',
describe:
'List of custom names to be used in prefix template.\n' +
'Example names: "main,browser,server"',
type: 'string',
},
'name-separator': {
describe:
'The character to split <names> on. Example usage:\n' +
'concurrently -n "styles|scripts|server" --name-separator "|"',
default: defaults.nameSeparator,
},
'success': {
alias: 's',
describe:
'Return exit code of zero or one based on the success or failure ' +
'of the "first" child to terminate, the "last child", or succeed ' +
'only if "all" child processes succeed.',
choices: ['first', 'last', 'all'] as const,
default: defaults.success,
},
'raw': {
alias: 'r',
describe:
'Output only raw output of processes, disables prettifying ' +
'and concurrently coloring.',
type: 'boolean',
},
// This one is provided for free. Chalk reads this itself and removes colours.
// https://www.npmjs.com/package/chalk#chalksupportscolor
'no-color': {
describe: 'Disables colors from logging',
type: 'boolean',
},
'hide': {
describe:
'Comma-separated list of processes to hide the output.\n' +
'The processes can be identified by their name or index.',
default: defaults.hide,
type: 'string',
},
'group': {
alias: 'g',
describe: 'Order the output as if the commands were run sequentially.',
type: 'boolean',
},
'timings': {
describe: 'Show timing information for all processes.',
type: 'boolean',
default: defaults.timings,
},
'passthrough-arguments': {
alias: 'P',
describe:
'Passthrough additional arguments to commands (accessible via placeholders) ' +
'instead of treating them as commands.',
type: 'boolean',
default: defaults.passthroughArguments,
},
// Kill others
'kill-others': {
alias: 'k',
describe: 'Kill other processes if one exits or dies.',
type: 'boolean',
},
'kill-others-on-fail': {
describe: 'Kill other processes if one exits with non zero status code.',
type: 'boolean',
},
// Prefix
'prefix': {
alias: 'p',
describe:
'Prefix used in logging for each process.\n' +
'Possible values: index, pid, time, command, name, none, or a template. ' +
'Example template: "{time}-{pid}"',
defaultDescription: 'index or name (when --names is set)',
type: 'string',
},
'prefix-colors': {
alias: 'c',
describe:
'Comma-separated list of chalk colors to use on prefixes. ' +
'If there are more commands than colors, the last color will be repeated.\n' +
'- Available modifiers: reset, bold, dim, italic, underline, inverse, hidden, strikethrough\n' +
'- Available colors: black, red, green, yellow, blue, magenta, cyan, white, gray \n' +
'or any hex values for colors, eg #23de43\n' +
'- Available background colors: bgBlack, bgRed, bgGreen, bgYellow, bgBlue, bgMagenta, bgCyan, bgWhite\n' +
'See https://www.npmjs.com/package/chalk for more information.',
default: defaults.prefixColors,
type: 'string',
},
'prefix-length': {
alias: 'l',
describe:
'Limit how many characters of the command is displayed in prefix. ' +
'The option can be used to shorten the prefix when it is set to "command"',
default: defaults.prefixLength,
type: 'number',
},
'timestamp-format': {
alias: 't',
describe: 'Specify the timestamp in moment/date-fns format.',
default: defaults.timestampFormat,
type: 'string',
},
// Restarting
'restart-tries': {
describe:
'How many times a process that died should restart.\n' +
'Negative numbers will make the process restart forever.',
default: defaults.restartTries,
type: 'number',
},
'restart-after': {
describe: 'Delay time to respawn the process, in milliseconds.',
default: defaults.restartDelay,
type: 'number',
},
// Input
'handle-input': {
alias: 'i',
describe:
'Whether input should be forwarded to the child processes. ' +
'See examples for more information.',
type: 'boolean',
},
'default-input-target': {
default: defaults.defaultInputTarget,
describe:
'Identifier for child process to which input on stdin ' +
'should be sent if not specified at start of input.\n' +
'Can be either the index or the name of the process.',
},
})
.group(['m', 'n', 'name-separator', 's', 'r', 'no-color', 'hide', 'g', 'timings', 'P'], 'General')
.group(['p', 'c', 'l', 't'], 'Prefix styling')
.group(['i', 'default-input-target'], 'Input handling')
.group(['k', 'kill-others-on-fail'], 'Killing other processes')
.group(['restart-tries', 'restart-after'], 'Restarting')
.epilogue(epilogue)
.parseSync();
// Get names of commands by the specified separator
const names = (args.names || '').split(args['name-separator']);
// If "passthrough-arguments" is disabled, treat additional arguments as commands
const commands = args.passthroughArguments ? args._ : [...args._, ...argsAfterSep];
concurrently(
commands.map((command, index) => ({
command: String(command),
name: names[index],
})),
{
handleInput: args['handle-input'],
defaultInputTarget: args['default-input-target'],
killOthers: args.killOthers
? ['success', 'failure']
: (args.killOthersOnFail ? ['failure'] : []),
maxProcesses: args['max-processes'],
raw: args.raw,
hide: args.hide.split(','),
group: args.group,
prefix: args.prefix,
prefixColors: args['prefix-colors'].split(','),
prefixLength: args['prefix-length'],
restartDelay: args['restart-after'],
restartTries: args['restart-tries'],
successCondition: args.success,
timestampFormat: args['timestamp-format'],
timings: args.timings,
passthroughArguments: args.passthroughArguments,
additionalArguments: argsAfterSep,
},
).result.then(
() => process.exit(0),
() => process.exit(1),
);