[Haskell-cafe] Haskell IDE Engine progress report for July 2017

[Alan & Kim Zimmerman]

This report is also available online at [1]
Haskell IDE Engine progress report for July 2017.
<https://github.com/haskell/haskell-ide-engine/blob/master/docs/Report-2017-07.md#what-is-haskell-ide-engine>What
is Haskell IDE Engine?

Not an IDE.

It is a common point for people in the Haskell community to pool their
efforts with respect to tooling.

For tool writers, provide tools as a HIE plugin, so it can be available on
supported IDEs

For IDE developers, integrate to HIE, and all the Haskell tools supported
as plugins become available

For users, it means the overall Haskell experience should improve.

Currently, we are targeting the Language Server Protocol as the channel via
which we talk to IDEs and editors. This would allow much broader IDE
support.
<https://github.com/haskell/haskell-ide-engine/blob/master/docs/Report-2017-07.md#important-developments>Important
developments

Zubin Duggal started work on a Summer of Haskell project to improve the LSP
support in HIE and implement more of the protocol.

Large portions of the HIE codebase have been refactored and rearchitectured
with LSP support in mind. Plugins for brittany and hoogle have been
implemented.

A new plugin request and dispatcher system has been implemented, along with
a new architecture for the loading and caching of TypecheckedModules from
source, which are used to drive many queries and features like type
information, document symbols, document highlights and go to definition.

Technical details regarding these changes are described in Architecture
<https://github.com/haskell/haskell-ide-engine/blob/master/docs/Architecture.md>
.

As of July 2017, HIE supports a large portion of the LSP. For the complete
feature list, check the README
<https://github.com/haskell/haskell-ide-engine/blob/master/README.md>.
<https://github.com/haskell/haskell-ide-engine/blob/master/docs/Report-2017-07.md#current-project-focus>Current
project focus

HIE (with vscode support via a plugin) is ready for an alpha release.
Currently, the focus is on bug fixing and hooking up already existing
features in HIE to LSP, like Hoogle queries and HaRe refactorings, and also
providing additional features via LSP Code Actions and Code Lenses

If you have experience writing Typescript or developing Visual Studio Code
extensions, your help is needed to improve the vscode hie extension.
<https://github.com/haskell/haskell-ide-engine/blob/master/docs/Report-2017-07.md#contributors-active-in-june-and-july>Contributors
active in June and July

Alan Zimmerman, Zubin Duggal, Lennart Spitzner
<https://github.com/haskell/haskell-ide-engine/blob/master/docs/Report-2017-07.md#contributing>
Contributing

Haskell IDE Engine needs volunteers like any other open source project. For
more information see:

https://github.com/haskell/haskell-ide-engine

Also drop by our IRC channel: #haskell-ide-engine at irc.freenode.net.

Thanks!

  Zubin and Alan

[1]
https://github.com/haskell/haskell-ide-engine/blob/master/docs/Report-2017-07.md
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