A very dumb and non-compliant IPFS gateway to git

ipfs-gitway.mjs

// Adin (paraphrased): "If I take a script and wrap git so it prefixes its hashes with f017c1114,
// do we have IPFS yet?"

import express from 'express';
import process from 'process';
import { join } from 'path';

// path to a .git
const gitDir = join(process.argv[2], 'objects');
const app = express();

app.get('/ipfs/:cid', (req, res) => {
  const { cid } = req.params;
  if (!/^f017c1114/.test(cid) || !/^\w+$/.test(cid)) return res.status(404).send('Not found');
  const gitPath = join(gitDir, cid.replace(/^f017c1114/, '').replace(/^(..)/, '$1/'));
  console.warn(`Fetching ${gitPath}`);
  res.sendFile(gitPath, (err) => {
    if (err) res.status(404).send('Not found');
  });
});
app.listen(8877, () => {
  console.warn(`IPFS Gitway up on http://localhost:8877! 💖💕`);
});

This is a really dumb script that serves HTTP requests for /ipfs/f017c1114<git sha> as an IPFS gateway.

It's not graceful, it doesn't handle CIDs well, and it doesn't properly comply with gateway specs. But you could use it to serve git content in an IPFS context and a (tolerant) IPFS client would be able to interact with the content.

SHIP IT!

Neat!