git.r.bdr.sh - rbdr/blog/blob - lib/generators/static.js

   1 'use strict';
   2
   3 const { access, rmdir } = require('fs/promises');
   4 const { ncp } = require('ncp');
   5 const { join } = require('path');
   6 const { debuglog, promisify } = require('util');
   7
   8 const internals = {
   9   ncp: promisify(ncp),
  10   debuglog: debuglog('blog'),
  11
  12   kAssetsDirectoryName: 'assets'
  13 };
  14
  15 /**
  16  * Generates the static assets required for the blog
  17  *
  18  * @name StaticGenerator
  19  * @param {string} source the source directory
  20  * @param {string} target the target directory
  21  * @param {Array.<Blog.tPost>} posts the list of posts
  22  */
  23 module.exports = async function StaticGenerator(source, target, posts) {
  24
  25   const assetsTarget = join(target, internals.kAssetsDirectoryName);
  26
  27   internals.debuglog(`Removing ${assetsTarget}`);
  28   await rmdir(assetsTarget, { recursive: true });
  29
  30   for (let i = 0; i < posts.length; ++i) {
  31     const postSourcePath = join(source, `${i}`);
  32
  33     try {
  34       await access(postSourcePath);
  35
  36       const assetsSource = join(postSourcePath, internals.kAssetsDirectoryName);
  37
  38       internals.debuglog(`Copying ${assetsSource} to ${assetsTarget}`);
  39       await internals.ncp(assetsSource, assetsTarget);
  40     }
  41     catch (error) {
  42       if (error.code === internals.kFileNotFoundError) {
  43         internals.debuglog(`Skipping ${i}`);
  44         continue;
  45       }
  46
  47       throw error;
  48     }
  49   }
  50 };