concurrently/dist/lib/command-parser/expand-arguments.js

Run commands concurrently

import { quote } from 'shell-quote';
/**
 * Replace placeholders with additional arguments.
 */
export class ExpandArguments {
    additionalArguments;
    constructor(additionalArguments) {
        this.additionalArguments = additionalArguments;
    }
    parse(commandInfo) {
        const command = commandInfo.command.replace(/\\?\{([@*]|[1-9]\d*)\}/g, (match, placeholderTarget) => {
            // Don't replace the placeholder if it is escaped by a backslash.
            if (match.startsWith('\\')) {
                return match.slice(1);
            }
            if (this.additionalArguments.length > 0) {
                // Replace numeric placeholder if value exists in additional arguments.
                if (+placeholderTarget <= this.additionalArguments.length) {
                    return quote([this.additionalArguments[+placeholderTarget - 1]]);
                }
                // Replace all arguments placeholder.
                if (placeholderTarget === '@') {
                    return quote(this.additionalArguments);
                }
                // Replace combined arguments placeholder.
                if (placeholderTarget === '*') {
                    return quote([this.additionalArguments.join(' ')]);
                }
            }
            // Replace placeholder with empty string
            // if value doesn't exist in additional arguments.
            return '';
        });
        return { ...commandInfo, command };
    }
}