automatic fix semicolons from eslint output

fixsemi.js

#!/usr/bin/env node
var fs = require("fs");

function fixFile(filename, lineNumbers) {
  fs.readFile(filename, { encoding: "utf-8", flag: "r" }, function (err, buffer) {

    if (err) {
      console.error("Could not read", filename, err);
      return;
    }

    if (!buffer) {
      console.warn("Empty file", filname);
      return;
    }

    var lines = buffer.toString().split("\n");
    lineNumbers.forEach(function (i) {
      lines[i-1] = lines[i-1] + ";";
    });
    var fixed = lines.join("\n");

    fs.writeFile(filename, fixed, { encoding: "utf-8", flag: "w" }, function (err) {
      if (err) {
        console.error("Error writing", filename, error);
        return;
      }
      console.log("FIXED", lineNumbers.length, filename);
    });
  });
}

process.stdin.resume();
process.stdin.setEncoding("utf8");
process.stdin.on("data", function (data) {

  console.log(data.length, "::", data.substring(0, Math.min(64, data.length)));
  var lines = data.split("\n");

  console.log("lines", lines.length);

  var file = null;
  var linesToFix = [];
  var COUNT = lines.length;

  for (var i = 0; i < COUNT; i++) {
    var line = lines[i];

    if (line === "") {
      if (file) {
        fixFile(file, linesToFix);
      }
      file = null;
      linesToFix = [];
      continue;
    }

    if (/^\/.+\.jsx?$/.test(line)) {
      file = line;
      continue;
    }

    if (!file) {
      continue;
    }

    // check rule
    var rule = /^\s{2}(\d{1,}):\d{1,}.+\s{2}semi$/;
    var matches = rule.exec(line);
    if (matches) {
      linesToFix.push(matches[1]);
    }


  }

});

usage.md

usage

> eslint . | fixsemi.js