【工作日常】如何统计代码行数？

刚接手了一个项目，老板让我统计一下代码行数，不看不知道，一看吓一跳，一起看看你写了多少代码吧。

Node Version: 14.18.1

终端执行node ./line.js 即可。

// line.js
const fs = require("fs");
const path = require("path");

const folderPaths = [path.resolve("./", "src")];
const excludes = [
  "nide_modules",
  "demo",
  "static",
  "docs",
  "__mocks__",
  "dist",
];

let fileCount = 0;
let lineCount = 0;

// 获取行数
const getLines = (filePath) => {
  const res = fs.readFileSync(filePath);
  const lines = res.toString().split("\n");
  return lines.length;
};

// 去除 excludes 目录
const avaliableFile = (filePath) => {
  const currentSplitPaths = filePath.split("/");
  const paths = new Set(excludes.concat(currentSplitPaths));
  return (
    Array.from(paths).length === excludes.length + currentSplitPaths.length
  );
};

const scanDir = (folderPath, dir) => {
  try {
    const files = fs.readdirSync(folderPath);
    files.forEach((filename) => {
      const director = path.join(`${folderPath}/`, filename);
      const stats = fs.statSync(director);
      if (stats.isDirectory()) {
        scanDir(director, dir ? `${dir}.${filename}` : filename);
      }
      if (stats.isFile() && avaliableFile(director)) {
        fileCount += 1;
        lineCount += getLines(director);
      }
    });
  } catch (err) {
    console.info(err);
  }
};

folderPaths.forEach((folderPath) => {
  scanDir(folderPath);
});

console.log(fileCount, lineCount);