parsegitmodules.js

const fs = require("fs");

const file = fs.readFileSync(".gitmodules").toString();

function parseGitModules(data, _callback) {
  var gitModules = data.split("["),
    subModulesCollections = [];

  gitModules.forEach(function(submodules) {
    if (/^submodule*/.test(submodules)) {
      var submodule = submodules.split("\n\t"),
        moduleDetails = {};

      submodule.forEach(function(sub) {
        var parseSubmoduleDetails = [],
          sub = sub
            .replace(/\n/g, "")
            .replace(/\s/g, "")
            .replace(/\"/g, "=");
        parseSubmoduleDetails = sub.split("=");

        switch (parseSubmoduleDetails[0]) {
          case "submodule":
            moduleDetails.submodule = parseSubmoduleDetails[1];
            break;
          case "path":
            moduleDetails.path = parseSubmoduleDetails[1];
            break;
          case "branch":
            moduleDetails.branch = parseSubmoduleDetails[1];
            break;
          case "url":
            moduleDetails.url = parseSubmoduleDetails[1];
            break;
        }
      });

      subModulesCollections.push(moduleDetails);
    }
  });

  // callback(null, subModulesCollections);
  return subModulesCollections;
}

console.log(parseGitModules(file));