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Profpatsch dde78515f6 feat(users/Profpatsch/whatcd-resolver): add a simple torrent parser 
The `bencode` library is anything but production-grade, but it’s
enough to parse the torrent files generated by Gazelle lol.

This should help with … I haven’t really figured out yet what it helps
with I guess. But it was fun. I like the `Parse` abstraction very
much. It can parse XML and it can parse Bencode. Good.

Change-Id: If1331de423eab3e91ce9db6e2a7eb84da51b18a2
Reviewed-on: https://cl.tvl.fyi/c/depot/+/13211
Tested-by: BuildkiteCI
Reviewed-by: Profpatsch <mail@profpatsch.de>
2025-03-06 23:41:43 +00:00
..
src feat(users/Profpatsch/whatcd-resolver): add a simple torrent parser 2025-03-06 23:41:43 +00:00
default.nix feat(users/Profpatsch/my-prelude): add RevList 2025-03-06 23:41:43 +00:00
my-prelude.cabal feat(users/Profpatsch/my-prelude): add RevList 2025-03-06 23:41:43 +00:00
README.md feat(users/Profpatsch/my-prelude): add RunCommand.hs 2023-04-22 17:17:03 +00:00

README.md

My Haskell Prelude

Contains various modules I’ve found useful when writing Haskell.

Contents

A short overview:

MyPrelude.hs

A collection of re-exports and extra functions. This does not replace the Prelude module from base, but rather should be imported in addition to Prelude.

Stuff like bad functions from prelude (partial stuff, or plain horrible stuff) are handled by a custom .hlint file, which you can find in ../.hlint.yaml.

The common style of haskell they try to enable is what I call “left-to-right Haskell”, where one mostly prefers forward-chaining operators like &/<&>/>>= to backwards operators like $/<$>/<=<. In addition, all transformation function should follow the scheme of aToB instead of B.fromA, e.g. Text.unpack/Text.pack -> textToString/stringToText. Includes a bunch of text conversion functions one needs all the time, in the same style.

These have been battle-tested in a production codebase of ~30k lines of Haskell.

Label.hs

A very useful collection of anonymous labbeled tuples and enums of size 2 and 3. Assumes GHC >9.2 for RecordDotSyntax support.

Pretty.hs

Colorful multiline pretty-printing of Haskell values.

Test.hs

A wrapper around hspec which produces colorful test diffs.

Aeson.hs

Helpers around Json parsing.

Data.Error.Tree

Collect errors (from Data.Error) into a tree, then display them in a nested fashion. Super useful for e.g. collecting and displaying nested parsing errors.

RunCommand.hs

A module wrapping the process API with some helpful defaults for executing commands and printing what is executed to stderr.