what-is-my-tech-stack/dist/utils/fileReader.js

Analyze project dependencies and generate a human-readable tech stack description

import fs from 'fs';
import path from 'path';
export class FileReader {
    /**
     * Checks if a file exists at the given path
     */
    static fileExists(filePath) {
        try {
            return fs.existsSync(filePath);
        }
        catch (error) {
            return false;
        }
    }
    /**
     * Reads and parses a package.json file
     */
    static async readPackageJson(filePath) {
        try {
            const absolutePath = path.resolve(filePath);
            if (!this.fileExists(absolutePath)) {
                throw new Error(`package.json not found at ${absolutePath}`);
            }
            const fileContent = await fs.promises.readFile(absolutePath, 'utf-8');
            return JSON.parse(fileContent);
        }
        catch (error) {
            throw new Error(`Error reading package.json: ${error.message}`);
        }
    }
    /**
     * Reads and parses a requirements.txt file
     */
    static async readRequirementsTxt(filePath) {
        try {
            const absolutePath = path.resolve(filePath);
            if (!this.fileExists(absolutePath)) {
                throw new Error(`requirements.txt not found at ${absolutePath}`);
            }
            const fileContent = await fs.promises.readFile(absolutePath, 'utf-8');
            return fileContent
                .split('\n')
                .map((line) => line.trim())
                .filter((line) => line && !line.startsWith('#')); // Remove empty lines and comments
        }
        catch (error) {
            throw new Error(`Error reading requirements.txt: ${error.message}`);
        }
    }
    /**
     * Detects the type of project based on the files present in the directory
     */
    static detectProjectType(directoryPath) {
        const hasPackageJson = this.fileExists(path.join(directoryPath, 'package.json'));
        const hasRequirementsTxt = this.fileExists(path.join(directoryPath, 'requirements.txt'));
        if (hasPackageJson && hasRequirementsTxt)
            return 'both';
        if (hasPackageJson)
            return 'node';
        if (hasRequirementsTxt)
            return 'python';
        return 'unknown';
    }
}
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