I've forgot to sign before hitting enter...
Cheers,
Võ Minh Thu
Le ven. 22 mars 2024 à 12:39, Vo Minh Thu
Hi,
I've signed up with the username "noteed" on gitlab.haskell.org and would like to be approved.
To give you an idea of what changes I'd like to see, and possibly already hear some feedback, here are some notes I had (all about GHCi):
- Add a `:version` command. This would show either the same as `ghc --version`, or the (beginning of the) first output line of GHCi, which is "GHCi, version 9.11.20240322: https://www.haskell.org/ghc/ :? for help". This seems like a very simple addition, and could help me learn to hack GHC, and would make sense for the next point.
- Have a flag to make GHCi not output the string "Loaded GHCi configuration from path/to/ghci.conf". This would let the `ghci.conf` file be in complete charge of what is displayed, instead of being necessarily followed by that string. I guess it would make sense to also hide the version string (see above).
- Make it possible to start/stop and observe running threads. So maybe a `:threads` (or `:set threads`, `:show threads` ?) command. Those could be user-defined, or provided by GHCi.
- Have GHCi watch files for changes (or be easily notified of changes) so it reloads them automatically (à la ghcid). I guess the main difference with ghcid is that after reloading the files, there is still an interactive prompt available (and running threads should be restarted (when using `:reload` too)).
- One of the running thread, instead of being user-supplied, could be a builtin feature of GHCi: the ability to listen for commands, just like the regular interactive prompt.
- Have GHCi be running as a background daemon, with no text interface beside a listening thread (or more than one). (This is related to https://gitlab.haskell.org/ghc/ghc/-/issues/15461.)