Clone

HTTPS: git clone https://vervis.peers.community/repos/yEzqv

SSH: git clone USERNAME@vervis.peers.community:yEzqv

Branches

master

27.mdwn

[[!template id=ticket class=task]]

[[!meta title=“SCP in Haskell”]]

Issue

The first thing that happens when Darcs connects to a remote repository is inventory download. This is probably how Darcs discovers the repository contents, somewhat like Git’s ref discovery.

In Darcs, the inventory download happens using secure copy, via the scp command. I didn’t check if Darcs runs the scp program or has its own implementation.

Currently, Vervis runs the scp program for the server side. But it’s probably simple enough to implement in Haskell, especially if initially it works just for the simple case of a single file.

Material:

[[!wikipedia “Secure copy”]]
[[How scp works|https://blogs.oracle.com/janp/entry/how_the_scp_protocol_works]]
[[!hackage scp-streams]]

This is also a great chance, assuming relevance, to learn pipes or conduit.

Progress

scp is used just for single file transfers. It’s slow and Darcs now has a better solution. Since currently I don’t support old Darcs repo formats, I don’t need to enable scp at all. Darcs has its dedicated transfer-mode command.

Result

None yet,