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index.ts
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index.ts
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import chalk from "chalk";
const log = (message: string) => process.stdout.write(message);
const logError = (message: string) => process.stderr.write(message);
export class Logger {
public name: string;
constructor(input: { name?: string, start?: boolean} | string) {
if (input) {
if (typeof input === "string") {
this.name = input;
} else {
if (!input.name || input.name === "") {
throw new Error("Name of the task was not passed");
}
this.name = input.name;
if (input.start) {
this.start();
}
}
} else {
throw new Error("Name of the task was not passed");
}
}
public log(message: string) {
message = this.build(message);
message = ` ${chalk.bold("•")} ${message}`;
log(message);
}
public success(message: string) {
message = this.build(message);
message = chalk.green(` ${chalk.bold("\u2713")} ${message}`);
log(message);
}
public error(message: string) {
message = this.build(message);
message = chalk.red(` ${chalk.bold("\u2717")} ${message}`);
logError(message);
}
public warn(message: string) {
message = this.build(message);
message = chalk.yellowBright(` ${chalk.bold("⚠")} ${message}`);
log(message);
}
public info(message: string) {
message = this.build(message);
message = chalk.cyan(` ${chalk.bold("i")} ${message}`);
log(message);
}
public clrscr() {
log("\x1Bc");
this.start();
}
public custom(symbol: string, message: string) {
if (symbol.length !== 1) {
throw new Error("Only single character can be passed as symbol to custom");
} else {
message = this.build(message);
message = ` ${chalk.bold(symbol)} ${message}`;
log(message);
}
}
private build(message: string): string {
const lines = message.split("\n");
if (lines.length === 1) {
return lines[0] + "\n";
}
message = lines[0] + "\n";
for (let i = 1; i < lines.length; i++) {
message += ` ${lines[i]}\n`;
}
return message;
}
private start() {
const message: string = `${ chalk.bold(this.name) } - ${chalk.cyan("webpack-cli")}` + "\n";
log(message);
}
}