git.r.bdr.sh - rbdr/blog/blob - lib/archivers/gemlog.js

   1 const { mkdir, readdir, rm, writeFile } = require('fs/promises');
   2 const { debuglog, promisify } = require('util');
   3 const { ncp } = require('ncp');
   4 const { join } = require('path');
   5
   6 const internals = {
   7   kArchiveName: '.gemlog',
   8   kIndexName: 'index.gmi',
   9   kGeminiRe: /\.gmi$/i,
  10
  11   ncp: promisify(ncp),
  12   debuglog: debuglog('blog'),
  13 };
  14
  15 module.exports = async function(archiveDirectory) {
  16   internals.debuglog(`Reading archive ${archiveDirectory}`);
  17   const postIds = await readdir(archiveDirectory)
  18   const posts = [];
  19   for (const id of postIds) {
  20     const postDirectory = join(archiveDirectory, id);
  21     const slug = (await readdir(postDirectory))
  22         .filter((entry) => internals.kGeminiRe.test(entry))[0];
  23
  24       posts.push({ id, slug })
  25   };
  26
  27   internals.debuglog(`Read ${posts.length} posts`);
  28
  29   const index = ['# Unlimited Pizza Gemlog Archive', '',
  30     ...posts.map((post) => `=> ./${post.id}/${post.slug}`)].join('\n');
  31
  32   try {
  33     internals.debuglog('Removing index');
  34     await rm(internals.kArchiveName, { recursive: true });
  35   }
  36   finally {
  37     internals.debuglog('Creating index');
  38     await mkdir(internals.kArchiveName);
  39     const indexFile = join(internals.kArchiveName, internals.kIndexName);
  40     await writeFile(indexFile, index);
  41
  42     internals.debuglog('Copying posts to archive');
  43     await internals.ncp(archiveDirectory, internals.kArchiveName);
  44   }
  45 };