infra-cli/lib/dealWithTemplate.js

infra cli

const metalsmith = require('metalsmith')
const handlebars = require('handlebars')
const chalk = require('chalk')

module.exports = async function replaceTemplate (metadata, targetDir) {
  return new Promise((resolve, reject) => {
    metalsmith(__dirname)
      .metadata(metadata)
      .clean(false)
      .source(targetDir)
      .destination(targetDir)
      .use((files, metalsmith, done) => {
        const meta = metalsmith.metadata()
        Object.keys(files)
          .filter((file) => {
            const fileRegex = /^.*\.(svg|png|jpg|ico|gif|jpeg|tsx)/g
            return !fileRegex.test(file)
          })
          .forEach((fileName) => {
            try {
              const t = files[fileName].contents.toString()
              files[fileName].contents = Buffer.from(handlebars.compile(t)(meta), 'utf-8')
            } catch (error) {
              console.error(chalk.redBright(`${fileName} is replacement failed!\n`))
              console.error(error)
            }
          })
        done()
      })
      .build((err) => {
        err ? reject(err) : resolve()
      })
  })
}