gelar-js/cli.js

A package for saving and making your project structure

#!/usr/bin/env node

const meow = require("meow");
const path = require("path");
const os = require("os");
const fs = require("fs");
const _ = require("lodash");
const yaml = require("yaml");

// creating project structure
let createStructure = (toParse, currdir) => {
  _.keys(toParse).forEach(key => {
    let cdir = `${currdir}${key.match(/[0-9][0-9]*/) ? `` : `/${key}`}`;
    console.log(cdir);
    if (!_.isString(toParse[key])) {
      if (toParse[key] === null) {
        // create empty directory below
        fs.mkdirSync(cdir, { recursive: true });
        // console.log(`create empty directory ${cdir}`);
      } else {
        // recursively walk toParse Object
        createStructure(toParse[key], cdir);
      }
    } else {
      // if the directory not exists, then create create directory first,
      if (!fs.existsSync(`${cdir}`)) {
        fs.mkdirSync(cdir, { recursive: true });
      }
      // then create the file
      fs.createWriteStream(`${cdir}/${toParse[key]}`);
      // console.log(`create file ${cdir}/${toParse[key]}`);
    }
  });
};

const cli = meow(
  `
	Usage
      $ gelar <Command>
    
    Commands
      use <your project structure name>         use one of your own project structure inside gelar.yaml file
      list                                      show list of available structures
      show <structure name>                     show your project structure in yaml representation
      help                                      show help 

  Examples
    This command create gelar.yaml(if not exists) in os.homedir(), not necessary to do since it's invoked when you call gelar-js on cmd/bash with any parameter, unless you delete gelar.yaml manually. 
      
      $ gelar                             

    Make project structure in current directory using your project structure name in gelar.yaml.
      
      $ gelar use example1
`,
  {
    description: false
  }
);

const initial = `
# config object, don't change it plz.
gelar_config:
  - lastUse: ""
# you can edit everything below

example1:
  - src:
      - pages:
          - Homepage.js
      - route: null
      - App.js
      - style.css
      - index.js
  - dependencies: null
  - index.html


  `;

// create gelar.yaml in os.homedir() if not exists
if (!fs.existsSync(path.join(os.homedir(), "gelar.yaml"))) {
  fs.writeFileSync(path.join(os.homedir(), "gelar.yaml"), initial);
  console.log(
    `First time ? gelar.yaml doesn't exists in ${os.homedir()}, so i created it for you :)`
  );
}

// reset gelar.yaml
if (cli.input[0] === "clean" || cli.input[0] === "c") {
  fs.writeFileSync(path.join(os.homedir(), "gelar.yaml"), initial);
  console.log("gelar.yaml cleaned");
}

// use the structure
else if (cli.input[0] === "use") {
  // read the gelar.yaml file
  const file = fs.readFileSync(path.join(os.homedir(), "gelar.yaml"), "utf8");
  const toParse = yaml.parse(file);

  if (cli.input[1] !== null && cli.input[1] !== "") {
    // checking if your Project Structure name exists.
    if (!_.keys(toParse).includes(cli.input[1])) {
      console.log(
        `Structure is not exists, are you already make it ? here's the list of available structure names : \n`
      );

      const file = fs.readFileSync(
        path.join(os.homedir(), "gelar.yaml"),
        "utf8"
      );
      const toParse = yaml.parse(file);
      const keyz = _.keys(toParse);
      keyz.forEach((k, idx) => console.log(`${idx + 1}. ${k}`));
    } else {
      // create directories/files in current directory
      createStructure(toParse[cli.input[1]], ".");
      console.log(`File structure is created !`);
    }
  } else {
    console.log(cli.help);
  }
}

// show list of available project structure names
else if (cli.input[0] === "list") {
  const file = fs.readFileSync(path.join(os.homedir(), "gelar.yaml"), "utf8");
  const toParse = yaml.parse(file);
  const keyz = _.keys(toParse);

  console.log(`List of available structure names : \n`);

  keyz.splice(1).forEach((k, idx) => console.log(`${idx + 1}. ${k}`));
}

// show structure by name
else if (cli.input[0] === "show") {
  if (cli.input[1] !== null || cli.input[1] !== "") {
    const file = fs.readFileSync(path.join(os.homedir(), "gelar.yaml"), "utf8");
    const toParse = yaml.parse(file);

    console.log(yaml.stringify(toParse[cli.input[1]]));
  } else {
    console.log(cli.help);
  }
} else {
  console.log(cli.help);
}