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import * as fs from 'fs';
import { ExecOptions } from 'shelljs';
import { exec } from 'child_process';
import * as path from 'path';
export const command_line = (command: string, fromDirectory?: string) => {
return new Promise<string>((resolve, reject) => {
let options: ExecOptions = {};
if (fromDirectory) {
options.cwd = path.join(__dirname, fromDirectory);
}
exec(command, options, (err, stdout) => err ? reject(err) : resolve(stdout));
});
};
export const read_text_file = (relativePath: string) => {
let target = path.join(__dirname, relativePath);
return new Promise<string>((resolve, reject) => {
fs.readFile(target, (err, data) => err ? reject(err) : resolve(data.toString()));
});
};
export const write_text_file = (relativePath: string, contents: any) => {
let target = path.join(__dirname, relativePath);
return new Promise<void>((resolve, reject) => {
fs.writeFile(target, contents, (err) => err ? reject(err) : resolve());
});
};
export interface LogData {
startMessage: string;
endMessage: string;
action: () => void | Promise<void>;
}
export async function log_execution({ startMessage, endMessage, action }: LogData) {
const color = `\x1b[${30 + Math.ceil(Math.random() * 6)}m%s\x1b[0m`;
console.log(color, `${startMessage}...`);
await action();
console.log(color, endMessage);
}
export enum ConsoleColors {
Black = `\x1b[30m%s\x1b[0m`,
Red = `\x1b[31m%s\x1b[0m`,
Green = `\x1b[32m%s\x1b[0m`,
Yellow = `\x1b[33m%s\x1b[0m`,
Blue = `\x1b[34m%s\x1b[0m`,
Magenta = `\x1b[35m%s\x1b[0m`,
Cyan = `\x1b[36m%s\x1b[0m`,
White = `\x1b[37m%s\x1b[0m`
}
export function logPort(listener: string, port: number) {
process.stdout.write(`${listener} listening on port `);
console.log(ConsoleColors.Yellow, port);
}
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