Update event not firing.

[RangerMauve]

Hey, I was posting about this on discord before but I just verified it with a test repo.

It looks like the update event in hyperdrive isn't firing. My gut feeling was that it's got something to do with the append event not firing on the metadata feed on peers when there's new blocks that we didn't download, but I'm not sure.

Here's a reproducible case for the issue: https://github.com/RangerMauve/hyperdrive-update-test

const hyperdrive = require('hyperdrive')
const RAM = require('random-access-memory')

const writer = hyperdrive(RAM)

const WRITE_DELAY = 1000

writer.ready(() => {
  const reader = hyperdrive(RAM, writer.key)

  function write () {
    writer.writeFile('/example.txt', `${new Date()}: Hello World!`, () => console.log('wrote'))
  }

  reader.on('update', () => console.log('update'))
  writer.once('peer-open', () => setInterval(write, WRITE_DELAY))

  reader.ready(() => {
    const stream1 = writer.replicate(true, { live: true })
    const stream2 = reader.replicate(false, { live: true })

    stream1.pipe(stream2).pipe(stream1)
  })
})

When I run this, I see a single update at the beginning, then a series of wrote events without corresponding update events.

Am I maybe misconfiguring something?

[mafintosh]

You are not reading any file so no update is fetched except for the initial one that loads the content feed

[RangerMauve]

Ah, so the update event doesn't happen unless I read files? I guess I've misunderstood what the update event does. Is there no event to react to when files have changed remotely?

[RangerMauve]

Oh cool. Thank you for the clarification. I guess the thing I really needed here was the watch API. 😁