@tsed/cli-core/lib/esm/services/CliLoadFile.js

Build your CLI with TypeScript and Decorators

import { extname } from "node:path";
import { inject, injectable } from "@tsed/di";
import { validate } from "../utils/validate.js";
import { CliFs } from "./CliFs.js";
import { CliYaml } from "./CliYaml.js";
export class CliLoadFile {
    constructor() {
        this.cliYaml = inject(CliYaml);
        this.cliFs = inject(CliFs);
    }
    /**
     * Load a configuration file from yaml, json
     */
    async loadFile(path, schema) {
        let config;
        const ext = extname(path);
        if ([".yml", ".yaml"].includes(ext)) {
            config = await this.cliYaml.read(path);
        }
        else if ([".json"].includes(ext)) {
            config = await JSON.parse(await this.cliFs.readFile(path, "utf8"));
        }
        else if (!config) {
            throw new Error("Unsupported format file");
        }
        if (schema) {
            const { isValid, errors, value } = validate(config, schema);
            if (!isValid) {
                const [error] = errors;
                throw new Error([`${error.path.replace(/\//gi, ".")} `, error.message, error.expected && `. Allowed values: ${error.expected}`]
                    .filter(Boolean)
                    .join(""));
            }
            return value;
        }
        return config;
    }
}
injectable(CliLoadFile);