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

   1 'use strict';
   2
   3 import { access, cp, readdir } from 'fs/promises';
   4 import { constants } from 'fs';
   5 import { join } from 'path';
   6 import { debuglog } from 'util';
   7 import { kFileNotFoundError } from '../constants.js';
   8
   9 const internals = {
  10   debuglog: debuglog('blog'),
  11   kAssetsDirectoryName: 'assets'
  12 };
  13
  14 /**
  15  * Generates the static assets required for the blog
  16  *
  17  * @name StaticGenerator
  18  * @param {string} source the source directory
  19  * @param {string} target the target directory
  20  * @param {Array.<Blog.tPost>} posts the list of posts
  21  */
  22 export default async function StaticGenerator(source, target, _) {
  23
  24   try {
  25     await access(source, constants.R_OK);
  26
  27     const entries = await readdir(source, { withFileTypes: true });
  28     for (const entry of entries) {
  29       const sourceAsset = join(source, entry.name);
  30       const targetAsset = join(target, entry.name);
  31
  32       internals.debuglog(`Copying ${sourceAsset} to ${targetAsset}`);
  33
  34       if (entry.isDirectory()) {
  35         await cp(sourceAsset, targetAsset, { recursive: true });
  36       } else {
  37         await cp(sourceAsset, targetAsset);
  38       }
  39     }
  40   }
  41   catch (error) {
  42     if (error.code === kFileNotFoundError) {
  43       internals.debuglog(`No static directory found in ${source}`);
  44       return;
  45     }
  46
  47     throw error;
  48   }
  49 };