Use /bin/sh in generated git hook scripts

[j178]

Closes #1323

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 90.05%. Comparing base (11b9171) to head (d6344ce).
⚠️ Report is 3 commits behind head on master.

Additional details and impacted files

@@           Coverage Diff           @@
##           master    #1333   +/-   ##
=======================================
  Coverage   90.05%   90.05%           
=======================================
  Files          80       80           
  Lines       15914    15910    -4     
=======================================
- Hits        14331    14328    -3     
+ Misses       1583     1582    -1     

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.

🚀 New features to boost your workflow:

• ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.

[github-actions]

📦 Cargo Bloat Comparison

Binary size change: +0.00% (16.7 MiB → 16.7 MiB)

Expand for cargo-bloat output

Head Branch Results

 File  .text     Size          Crate Name
 0.7%   1.5% 115.5KiB           prek prek::languages::<impl prek::config::Language>::run::{{closure}}::{{closure}}
 0.6%   1.3% 107.3KiB          prek? <prek::cli::Command as clap_builder::derive::Subcommand>::augment_subcommands
 0.3%   0.7%  54.7KiB           prek prek::archive::unpack::{{closure}}
 0.3%   0.7%  52.8KiB             h2 h2::proto::connection::Connection<T,P,B>::poll
 0.2%   0.5%  39.8KiB           prek prek::languages::<impl prek::config::Language>::install::{{closure}}
 0.2%   0.5%  39.2KiB          prek? <prek::cli::RunArgs as clap_builder::derive::Args>::augment_args
 0.2%   0.5%  39.2KiB           prek prek::run::{{closure}}
 0.2%   0.5%  37.3KiB          hyper hyper::proto::h1::dispatch::Dispatcher<D,Bs,I,T>::poll_loop
 0.2%   0.5%  36.9KiB regex_automata regex_automata::meta::strategy::new
 0.2%   0.5%  36.5KiB           prek prek::workspace::Workspace::discover
 0.2%   0.4%  30.8KiB           std? <core::marker::PhantomData<T> as serde_core::de::DeserializeSeed>::deserialize
 0.2%   0.4%  30.8KiB           prek prek::cli::run::run::run::{{closure}}
 0.2%   0.4%  29.8KiB           prek prek::languages::rust::installer::RustInstaller::install::{{closure}}
 0.2%   0.4%  28.4KiB           prek prek::languages::node::installer::NodeInstaller::install::{{closure}}
 0.2%   0.4%  28.4KiB             h2 h2::proto::connection::DynConnection<B>::recv_frame
 0.2%   0.3%  27.6KiB           prek prek::identify::by_extension::{{closure}}
 0.2%   0.3%  27.3KiB           prek prek::cli::run::run::run_hooks::{{closure}}
 0.2%   0.3%  26.2KiB           prek prek::cli::auto_update::update_repo::{{closure}}
 0.1%   0.3%  24.9KiB     hyper_util hyper_util::client::legacy::client::Client<C,B>::connect_to::{{closure}}::{{closure}}::{{closure}}
 0.1%   0.3%  24.7KiB           prek prek::hook::HookBuilder::build::{{closure}}
41.3%  88.5%   6.9MiB                And 10644 smaller methods. Use -n N to show more.
46.7% 100.0%   7.8MiB                .text section size, the file size is 16.7MiB

Base Branch Results

 File  .text     Size          Crate Name
 0.7%   1.5% 115.5KiB           prek prek::languages::<impl prek::config::Language>::run::{{closure}}::{{closure}}
 0.6%   1.3% 107.3KiB          prek? <prek::cli::Command as clap_builder::derive::Subcommand>::augment_subcommands
 0.3%   0.7%  54.7KiB           prek prek::archive::unpack::{{closure}}
 0.3%   0.7%  52.8KiB             h2 h2::proto::connection::Connection<T,P,B>::poll
 0.2%   0.5%  39.8KiB           prek prek::languages::<impl prek::config::Language>::install::{{closure}}
 0.2%   0.5%  39.2KiB          prek? <prek::cli::RunArgs as clap_builder::derive::Args>::augment_args
 0.2%   0.5%  39.2KiB           prek prek::run::{{closure}}
 0.2%   0.5%  37.3KiB          hyper hyper::proto::h1::dispatch::Dispatcher<D,Bs,I,T>::poll_loop
 0.2%   0.5%  36.9KiB regex_automata regex_automata::meta::strategy::new
 0.2%   0.5%  36.5KiB           prek prek::workspace::Workspace::discover
 0.2%   0.4%  30.8KiB           std? <core::marker::PhantomData<T> as serde_core::de::DeserializeSeed>::deserialize
 0.2%   0.4%  30.8KiB           prek prek::cli::run::run::run::{{closure}}
 0.2%   0.4%  29.8KiB           prek prek::languages::rust::installer::RustInstaller::install::{{closure}}
 0.2%   0.4%  28.4KiB           prek prek::languages::node::installer::NodeInstaller::install::{{closure}}
 0.2%   0.4%  28.4KiB             h2 h2::proto::connection::DynConnection<B>::recv_frame
 0.2%   0.3%  27.6KiB           prek prek::identify::by_extension::{{closure}}
 0.2%   0.3%  27.3KiB           prek prek::cli::run::run::run_hooks::{{closure}}
 0.2%   0.3%  26.2KiB           prek prek::cli::auto_update::update_repo::{{closure}}
 0.1%   0.3%  24.9KiB     hyper_util hyper_util::client::legacy::client::Client<C,B>::connect_to::{{closure}}::{{closure}}::{{closure}}
 0.1%   0.3%  24.7KiB           prek prek::hook::HookBuilder::build::{{closure}}
41.3%  88.5%   6.9MiB                And 10644 smaller methods. Use -n N to show more.
46.7% 100.0%   7.8MiB                .text section size, the file size is 16.7MiB

[Copilot]

Pull request overview

This PR simplifies the generated git hook scripts by switching from bash to POSIX sh, making them more portable and removing platform-specific conditional logic.

Changes:

• Changed shebang from #!/usr/bin/env bash (with Windows-specific handling) to #!/bin/sh for all platforms
• Replaced bash array syntax with direct argument construction for better POSIX sh compatibility
• Updated all test snapshots to reflect the new script format

Reviewed changes

Copilot reviewed 3 out of 3 changed files in this pull request and generated no comments.

File	Description
crates/prek/src/cli/install.rs	Modified hook script template to use /bin/sh shebang and replaced bash array argument construction with direct command-line argument passing
crates/prek/tests/install.rs	Updated all test snapshots to expect /bin/sh shebang and the new argument format without bash arrays
crates/prek/tests/common/mod.rs	Removed the test filter that was converting #!/bin/sh to #!/usr/bin/env bash

---

💡 Add Copilot custom instructions for smarter, more guided reviews. Learn how to get started.