Gulp使用另一个文件的哈希更新文件的内容

const gulp = require('gulp');
const crypto = require('crypto');
const fs = require('fs');

// 读取源文件内容
function getSourceFileContent(filePath) {
  return fs.readFileSync(filePath, 'utf8');
}

// 生成哈希值
function generateHash(content) {
  return crypto.createHash('md5').update(content).digest('hex');
}

// 更新目标文件内容
function updateTargetFile(targetFilePath, hash) {
  const targetContent = fs.readFileSync(targetFilePath, 'utf8');
  const updatedContent = targetContent.replace(/{{hash}}/g, hash);
  fs.writeFileSync(targetFilePath, updatedContent, 'utf8');
}

// Gulp 任务
gulp.task('update-hash', function () {
  const sourceFilePath = 'src/source.txt';
  const targetFilePath = 'dist/target.txt';

  const sourceContent = getSourceFileContent(sourceFilePath);
  const hash = generateHash(sourceContent);
  updateTargetFile(targetFilePath, hash);

  console.log(`Updated ${targetFilePath} with hash: ${hash}`);
});

// 默认任务
gulp.task('default', gulp.series('update-hash'));