Support Haskell language

[fllesser]

resolve #1445

[codecov]

Codecov Report

❌ Patch coverage is 87.03704% with 14 lines in your changes missing coverage. Please review.
✅ Project coverage is 91.33%. Comparing base (a69f9eb) to head (786b3f2).

Files with missing lines	Patch %	Lines
crates/prek/src/languages/haskell.rs	86.79%	14 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #1484      +/-   ##
==========================================
- Coverage   91.35%   91.33%   -0.03%     
==========================================
  Files          87       88       +1     
  Lines       18187    18295     +108     
==========================================
+ Hits        16615    16710      +95     
- Misses       1572     1585      +13     

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[j178]

Thanks! Overall looks good. I added a few comments, and we’ll need to update the docs/languages.md file.

[prek-ci-bot]

📦 Cargo Bloat Comparison

Binary size change: +0.44% (22.5 MiB → 22.6 MiB)

Expand for cargo-bloat output

Head Branch Results

 File  .text    Size           Crate Name
 0.3%   0.8% 75.0KiB           prek? <prek::cli::Command as clap_builder::derive::Subcommand>::augment_subcommands
 0.3%   0.6% 59.4KiB            prek prek::languages::<impl prek::config::Language>::run::{{closure}}::{{closure}}
 0.2%   0.6% 57.5KiB            prek prek::languages::<impl prek::config::Language>::run::{{closure}}::{{closure}}
 0.2%   0.5% 47.6KiB            prek prek::languages::<impl prek::config::Language>::install::{{closure}}
 0.2%   0.5% 43.4KiB            prek prek::identify::by_extension::{{closure}}
 0.2%   0.5% 43.2KiB            prek prek::run::{{closure}}
 0.2%   0.4% 41.5KiB            prek prek::cli::run::run::run::{{closure}}
 0.1%   0.3% 31.3KiB           prek? <prek::cli::RunArgs as clap_builder::derive::Args>::augment_args
 0.1%   0.2% 21.5KiB            prek prek::hooks::meta_hooks::MetaHooks::run::{{closure}}
 0.1%   0.2% 21.5KiB            prek prek::hooks::meta_hooks::MetaHooks::run::{{closure}}
 0.1%   0.2% 21.0KiB    clap_builder clap_builder::parser::parser::Parser::get_matches_with
 0.1%   0.2% 20.8KiB            prek prek::archive::unzip::{{closure}}
 0.1%   0.2% 20.0KiB cargo_metadata? <cargo_metadata::_::<impl serde_core::de::Deserialize for cargo_metadata::Package>::deserialize::__Visitor as serde_core::de::Visitor>::visit_map
 0.1%   0.2% 19.5KiB            prek prek::cli::run::filter::collect_files_from_args::{{closure}}
 0.1%   0.2% 19.2KiB             std core::ptr::drop_in_place<prek::languages::<impl prek::config::Language>::install::{{closure}}>
 0.1%   0.2% 19.2KiB            prek prek::main
 0.1%   0.2% 19.1KiB            prek <prek::languages::ruby::ruby::Ruby as prek::languages::LanguageImpl>::install::{{closure}}
 0.1%   0.2% 19.1KiB            prek prek::cli::run::filter::collect_files_from_args::{{closure}}
 0.1%   0.2% 18.6KiB            ring ring_core_0_17_14__x25519_ge_frombytes_vartime
 0.1%   0.2% 18.5KiB            prek prek::hook::HookBuilder::build::{{closure}}
36.8%  91.5%  8.3MiB                 And 20054 smaller methods. Use -n N to show more.
40.3% 100.0%  9.1MiB                 .text section size, the file size is 22.6MiB

Base Branch Results

 File  .text    Size           Crate Name
 0.3%   0.8% 71.7KiB           prek? <prek::cli::Command as clap_builder::derive::Subcommand>::augment_subcommands
 0.3%   0.6% 59.2KiB            prek prek::languages::<impl prek::config::Language>::run::{{closure}}::{{closure}}
 0.2%   0.6% 55.6KiB            prek prek::languages::<impl prek::config::Language>::run::{{closure}}::{{closure}}
 0.2%   0.5% 43.4KiB            prek prek::identify::by_extension::{{closure}}
 0.2%   0.5% 43.3KiB            prek prek::run::{{closure}}
 0.2%   0.5% 42.4KiB            prek prek::languages::<impl prek::config::Language>::install::{{closure}}
 0.2%   0.4% 41.7KiB            prek prek::cli::run::run::run::{{closure}}
 0.1%   0.3% 31.8KiB           prek? <prek::cli::RunArgs as clap_builder::derive::Args>::augment_args
 0.1%   0.2% 21.6KiB            prek prek::hooks::meta_hooks::MetaHooks::run::{{closure}}
 0.1%   0.2% 21.0KiB    clap_builder clap_builder::parser::parser::Parser::get_matches_with
 0.1%   0.2% 20.8KiB            prek prek::archive::unzip::{{closure}}
 0.1%   0.2% 20.0KiB cargo_metadata? <cargo_metadata::_::<impl serde_core::de::Deserialize for cargo_metadata::Package>::deserialize::__Visitor as serde_core::de::Visitor>::visit_map
 0.1%   0.2% 19.8KiB            prek prek::hooks::meta_hooks::MetaHooks::run::{{closure}}
 0.1%   0.2% 19.4KiB            prek prek::cli::run::filter::collect_files_from_args::{{closure}}
 0.1%   0.2% 19.4KiB            prek prek::cli::run::filter::collect_files_from_args::{{closure}}
 0.1%   0.2% 19.3KiB            prek <prek::languages::ruby::ruby::Ruby as prek::languages::LanguageImpl>::install::{{closure}}
 0.1%   0.2% 18.6KiB            ring ring_core_0_17_14__x25519_ge_frombytes_vartime
 0.1%   0.2% 18.5KiB            prek prek::hook::HookBuilder::build::{{closure}}
 0.1%   0.2% 18.5KiB            prek prek::hook::HookBuilder::build::{{closure}}
 0.1%   0.2% 18.5KiB            prek prek::hook::HookBuilder::build::{{closure}}
36.9%  91.6%  8.3MiB                 And 20035 smaller methods. Use -n N to show more.
40.2% 100.0%  9.1MiB                 .text section size, the file size is 22.5MiB

[fllesser]

cabal update and cabal install seem to be very slow.

To mitigate the race condition issue with cabal update, I switched to serialized testing, which now takes over 180 seconds in CI. Are there any solutions to this?

[j178]

Can we skip cabal update in CI via a special env var (e.g PREK_INTERNAL__SKIP_CABAL_UPDATE)?

[fllesser]

Ok