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Add project auto-update cooldown config#2044

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j178 merged 3 commits into
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auto-update-settings
May 5, 2026
Merged

Add project auto-update cooldown config#2044
j178 merged 3 commits into
masterfrom
auto-update-settings

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@j178

@j178 j178 commented May 4, 2026 •
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Summary

Add project-level auto_update.cooldown_days support for prek.toml and .pre-commit-config.yaml.

Closes #1765

@j178 j178 added the enhancement New feature or request label May 4, 2026
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Codecov Report

❌ Patch coverage is 95.23810% with 2 lines in your changes missing coverage. Please review.
✅ Project coverage is 92.29%. Comparing base (c52833e) to head (525a0c4).
⚠️ Report is 1 commits behind head on master.

Files with missing lines Patch % Lines
crates/prek/src/cli/auto_update/mod.rs 71.42% 2 Missing ⚠️
Additional details and impacted files 
@@            Coverage Diff             @@
##           master    #2044      +/-   ##
==========================================
+ Coverage   92.26%   92.29%   +0.02%     
==========================================
  Files         119      119              
  Lines       24266    24281      +15     
==========================================
+ Hits        22389    22410      +21     
+ Misses       1877     1871       -6

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📦 Cargo Bloat Comparison

Binary size change: +0.00% (26.1 MiB → 26.1 MiB)

Expand for cargo-bloat output

Head Branch Results

 File  .text     Size             Crate Name
 1.2%   2.6% 332.0KiB        aws_lc_sys aws_lc_0_39_1_aes_gcm_encrypt_avx512
 1.2%   2.6% 332.0KiB        aws_lc_sys aws_lc_0_39_1_aes_gcm_decrypt_avx512
 0.3%   0.7%  90.7KiB              prek prek::languages::<impl prek::config::Language>::run::{{closure}}::{{closure}}
 0.3%   0.7%  83.6KiB              prek prek::languages::<impl prek::config::Language>::run::{{closure}}::{{closure}}
 0.3%   0.6%  74.4KiB             prek? <prek::cli::Command as clap_builder::derive::Subcommand>::augment_subcommands
 0.2%   0.5%  65.4KiB              prek prek::languages::<impl prek::config::Language>::install::{{closure}}
 0.2%   0.4%  53.3KiB annotate_snippets annotate_snippets::renderer::render::render
 0.2%   0.4%  48.7KiB              prek prek::run::{{closure}}
 0.2%   0.3%  42.5KiB              prek prek::cli::run::run::run::{{closure}}
 0.1%   0.3%  33.1KiB             prek? <prek::cli::RunArgs as clap_builder::derive::Args>::augment_args
 0.1%   0.2%  32.0KiB             prek? <prek::config::_::<impl serde_core::de::Deserialize for prek::config::Config>::deserialize::__Visitor as serde_core::de::Visitor>::visit_map
 0.1%   0.2%  28.6KiB               std core::ptr::drop_in_place<prek::languages::<impl prek::config::Language>::install::{{closure}}>
 0.1%   0.2%  28.0KiB        aws_lc_sys aws_lc_0_39_1_edwards25519_scalarmuldouble_alt
 0.1%   0.2%  27.6KiB      serde_saphyr saphyr_parser_bw::scanner::Scanner<T>::fetch_more_tokens
 0.1%   0.2%  27.5KiB        aws_lc_sys aws_lc_0_39_1_edwards25519_scalarmuldouble
 0.1%   0.2%  26.2KiB              prek prek::cli::try_repo::try_repo::{{closure}}
 0.1%   0.2%  23.3KiB              prek prek::hooks::meta_hooks::MetaHooks::run::{{closure}}
 0.1%   0.2%  22.5KiB      serde_saphyr saphyr_parser_bw::scanner::Scanner<T>::fetch_more_tokens
 0.1%   0.2%  22.3KiB         [Unknown] Lp384_montjscalarmul_alt_p384_montjadd
 0.1%   0.2%  21.5KiB      clap_builder clap_builder::parser::parser::Parser::get_matches_with
41.4%  86.2%  10.8MiB                   And 23862 smaller methods. Use -n N to show more.
48.1% 100.0%  12.5MiB                   .text section size, the file size is 26.1MiB

Base Branch Results

 File  .text     Size             Crate Name
 1.2%   2.6% 332.0KiB        aws_lc_sys aws_lc_0_39_1_aes_gcm_encrypt_avx512
 1.2%   2.6% 332.0KiB        aws_lc_sys aws_lc_0_39_1_aes_gcm_decrypt_avx512
 0.3%   0.7%  90.7KiB              prek prek::languages::<impl prek::config::Language>::run::{{closure}}::{{closure}}
 0.3%   0.7%  83.6KiB              prek prek::languages::<impl prek::config::Language>::run::{{closure}}::{{closure}}
 0.2%   0.5%  65.4KiB              prek prek::languages::<impl prek::config::Language>::install::{{closure}}
 0.2%   0.5%  61.3KiB             prek? <prek::cli::Command as clap_builder::derive::Subcommand>::augment_subcommands
 0.2%   0.4%  53.3KiB annotate_snippets annotate_snippets::renderer::render::render
 0.2%   0.3%  42.1KiB              prek prek::cli::run::run::run::{{closure}}
 0.1%   0.3%  35.2KiB              prek prek::run::{{closure}}
 0.1%   0.3%  32.6KiB             prek? <prek::cli::RunArgs as clap_builder::derive::Args>::augment_args
 0.1%   0.2%  29.6KiB             prek? <prek::config::_::<impl serde_core::de::Deserialize for prek::config::Config>::deserialize::__Visitor as serde_core::de::Visitor>::visit_map
 0.1%   0.2%  28.6KiB               std core::ptr::drop_in_place<prek::languages::<impl prek::config::Language>::install::{{closure}}>
 0.1%   0.2%  28.0KiB        aws_lc_sys aws_lc_0_39_1_edwards25519_scalarmuldouble_alt
 0.1%   0.2%  27.6KiB      serde_saphyr saphyr_parser_bw::scanner::Scanner<T>::fetch_more_tokens
 0.1%   0.2%  27.5KiB        aws_lc_sys aws_lc_0_39_1_edwards25519_scalarmuldouble
 0.1%   0.2%  26.2KiB              prek prek::cli::try_repo::try_repo::{{closure}}
 0.1%   0.2%  23.3KiB              prek prek::hooks::meta_hooks::MetaHooks::run::{{closure}}
 0.1%   0.2%  22.5KiB      serde_saphyr saphyr_parser_bw::scanner::Scanner<T>::fetch_more_tokens
 0.1%   0.2%  22.3KiB         [Unknown] Lp384_montjscalarmul_alt_p384_montjadd
 0.1%   0.2%  21.5KiB      clap_builder clap_builder::parser::parser::Parser::get_matches_with
41.5%  86.4%  10.8MiB                   And 23818 smaller methods. Use -n N to show more.
48.0% 100.0%  12.5MiB                   .text section size, the file size is 26.1MiB

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⚡️ Hyperfine Benchmarks

Summary: 0 regressions, 0 improvements above the 10% threshold.

Environment
  • OS: Linux 6.17.0-1010-azure
  • CPU: 4 cores
  • prek version: prek 0.3.11+24 (8a41804 2026-05-05)
  • Rust version: rustc 1.95.0 (59807616e 2026-04-14)
  • Hyperfine version: hyperfine 1.20.0
CLI Commands

Benchmarking basic commands in the main repo:

prek --version

Command Mean [ms] Min [ms] Max [ms] Relative
prek-base --version 2.6 ± 0.1 2.4 3.2 1.02 ± 0.06
prek-head --version 2.5 ± 0.1 2.4 2.7 1.00

prek list

Command Mean [ms] Min [ms] Max [ms] Relative
prek-base list 9.9 ± 0.2 9.6 10.5 1.00
prek-head list 9.9 ± 0.2 9.5 10.4 1.00 ± 0.03

prek validate-config .pre-commit-config.yaml

Command Mean [ms] Min [ms] Max [ms] Relative
prek-base validate-config .pre-commit-config.yaml 3.5 ± 0.1 3.3 3.7 1.01 ± 0.04
prek-head validate-config .pre-commit-config.yaml 3.5 ± 0.1 3.3 3.7 1.00

prek sample-config

Command Mean [ms] Min [ms] Max [ms] Relative
prek-base sample-config 2.8 ± 0.2 2.7 4.0 1.00 ± 0.08
prek-head sample-config 2.8 ± 0.1 2.7 3.0 1.00
Cold vs Warm Runs

Comparing first run (cold) vs subsequent runs (warm cache):

prek run --all-files (cold - no cache)

Command Mean [ms] Min [ms] Max [ms] Relative
prek-base run --all-files 153.4 ± 2.4 149.4 157.0 1.01 ± 0.03
prek-head run --all-files 152.1 ± 4.3 147.3 162.1 1.00

prek run --all-files (warm - with cache)

Command Mean [ms] Min [ms] Max [ms] Relative
prek-base run --all-files 151.6 ± 4.3 146.2 162.0 1.00
prek-head run --all-files 151.9 ± 4.6 146.0 160.7 1.00 ± 0.04
Full Hook Suite

Running the builtin hook suite on the benchmark workspace:

prek run --all-files (full builtin hook suite)

Command Mean [ms] Min [ms] Max [ms] Relative
prek-base run --all-files 155.5 ± 3.9 147.0 163.0 1.00
prek-head run --all-files 155.7 ± 11.1 147.8 223.0 1.00 ± 0.08
Individual Hook Performance

Benchmarking each hook individually on the test repo:

prek run trailing-whitespace --all-files

Command Mean [ms] Min [ms] Max [ms] Relative
prek-base run trailing-whitespace --all-files 22.0 ± 0.6 21.1 23.4 1.00 ± 0.03
prek-head run trailing-whitespace --all-files 22.0 ± 0.5 21.3 23.2 1.00

prek run end-of-file-fixer --all-files

Command Mean [ms] Min [ms] Max [ms] Relative
prek-base run end-of-file-fixer --all-files 29.0 ± 2.1 25.8 33.1 1.00
prek-head run end-of-file-fixer --all-files 29.9 ± 4.5 24.7 46.7 1.03 ± 0.17

prek run check-json --all-files

Command Mean [ms] Min [ms] Max [ms] Relative
prek-base run check-json --all-files 13.5 ± 0.2 13.2 14.0 1.02 ± 0.04
prek-head run check-json --all-files 13.2 ± 0.5 12.2 13.9 1.00

prek run check-yaml --all-files

Command Mean [ms] Min [ms] Max [ms] Relative
prek-base run check-yaml --all-files 12.6 ± 0.5 12.1 13.7 1.01 ± 0.04
prek-head run check-yaml --all-files 12.4 ± 0.2 12.1 12.8 1.00

prek run check-toml --all-files

Command Mean [ms] Min [ms] Max [ms] Relative
prek-base run check-toml --all-files 12.8 ± 0.3 12.2 13.4 1.00
prek-head run check-toml --all-files 12.9 ± 0.3 12.4 13.6 1.01 ± 0.03

prek run check-xml --all-files

Command Mean [ms] Min [ms] Max [ms] Relative
prek-base run check-xml --all-files 13.0 ± 0.6 12.1 15.8 1.01 ± 0.06
prek-head run check-xml --all-files 12.9 ± 0.4 12.2 13.6 1.00

prek run detect-private-key --all-files

Command Mean [ms] Min [ms] Max [ms] Relative
prek-base run detect-private-key --all-files 19.6 ± 1.4 17.4 23.8 1.01 ± 0.10
prek-head run detect-private-key --all-files 19.4 ± 1.4 16.6 22.4 1.00

prek run fix-byte-order-marker --all-files

Command Mean [ms] Min [ms] Max [ms] Relative
prek-base run fix-byte-order-marker --all-files 24.2 ± 1.8 20.6 26.8 1.02 ± 0.10
prek-head run fix-byte-order-marker --all-files 23.8 ± 1.4 21.4 26.8 1.00
Installation Performance

Benchmarking hook installation (fast path hooks skip Python setup):

prek install-hooks (cold - no cache)

Command Mean [ms] Min [ms] Max [ms] Relative
prek-base install-hooks 5.4 ± 0.1 5.3 5.5 1.00 ± 0.03
prek-head install-hooks 5.4 ± 0.1 5.2 5.6 1.00

prek install-hooks (warm - with cache)

Command Mean [ms] Min [ms] Max [ms] Relative
prek-base install-hooks 5.3 ± 0.1 5.3 5.5 1.01 ± 0.02
prek-head install-hooks 5.3 ± 0.1 5.3 5.4 1.00
File Filtering/Scoping Performance

Testing different file selection modes:

prek run (staged files only)

Command Mean [ms] Min [ms] Max [ms] Relative
prek-base run 52.8 ± 1.5 50.7 57.2 1.00 ± 0.04
prek-head run 52.7 ± 1.3 50.1 55.3 1.00

prek run --files '*.json' (specific file type)

Command Mean [ms] Min [ms] Max [ms] Relative
prek-base run --files '*.json' 9.2 ± 0.1 8.9 9.4 1.00
prek-head run --files '*.json' 9.3 ± 0.1 9.0 9.6 1.01 ± 0.02
Workspace Discovery & Initialization

Benchmarking hook discovery and initialization overhead:

prek run --dry-run --all-files (measures init overhead)

Command Mean [ms] Min [ms] Max [ms] Relative
prek-base run --dry-run --all-files 17.4 ± 0.3 16.9 18.3 1.01 ± 0.02
prek-head run --dry-run --all-files 17.1 ± 0.2 16.7 17.7 1.00
Meta Hooks Performance

Benchmarking meta hooks separately:

prek run check-hooks-apply --all-files

Command Mean [ms] Min [ms] Max [ms] Relative
prek-base run check-hooks-apply --all-files 14.7 ± 0.2 14.4 15.0 1.13 ± 0.02
prek-head run check-hooks-apply --all-files 13.0 ± 0.1 12.8 13.2 1.00

prek run check-useless-excludes --all-files

Command Mean [ms] Min [ms] Max [ms] Relative
prek-base run check-useless-excludes --all-files 13.3 ± 0.4 13.0 14.7 1.01 ± 0.03
prek-head run check-useless-excludes --all-files 13.3 ± 0.1 13.0 13.4 1.00

prek run identity --all-files

Command Mean [ms] Min [ms] Max [ms] Relative
prek-base run identity --all-files 11.4 ± 0.1 11.3 11.6 1.00
prek-head run identity --all-files 11.6 ± 0.2 11.3 12.3 1.02 ± 0.02

@j178 j178 force-pushed the auto-update-settings branch 3 times, most recently from dec2146 to 5b7e65f Compare May 4, 2026 14:20
@j178 j178 marked this pull request as ready for review May 4, 2026 14:20
Copilot AI review requested due to automatic review settings May 4, 2026 14:20
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Pull request overview

Adds a project-level auto_update.cooldown_days configuration so prek auto-update can default its cooldown window from the project config (YAML/TOML), with CLI override still taking precedence, and global config as fallback. This fits into prek’s configuration model by extending Config and routing cooldown resolution through workspace/project discovery so each project can be evaluated with its own cooldown.

Changes:

  • Extend project config model + JSON schema with auto_update.cooldown_days.
  • Resolve cooldown per project (CLI → project → global → default) and thread it through auto-update’s repo-target evaluation.
  • Update docs and integration tests/snapshots to cover workspace/project cooldown behavior.

Reviewed changes

Copilot reviewed 25 out of 25 changed files in this pull request and generated 2 comments.

Show a summary per file
File Description
prek.schema.json Adds auto_update to the project config schema and defines AutoUpdateOptions.cooldown_days.
docs/reference/configuration.md Documents global vs project auto_update.cooldown_days and precedence rules.
docs/reference/cli.md Updates --cooldown-days help text to mention project config precedence.
docs/configuration.md Adds project config examples for auto_update.cooldown_days and lists it as a prek-only YAML extension.
crates/prek/tests/global_config.rs Adjusts global-config tests to run auto-update with a minimal project config present (and updates snapshots accordingly).
crates/prek/tests/auto_update.rs Adds a workspace test asserting per-project cooldown behavior when sharing the same repo URL.
crates/prek/src/snapshots/prek__config__tests__read_yaml_config.snap Updates config parsing snapshot to include the new auto_update field (default None).
crates/prek/src/snapshots/prek__config__tests__read_toml_config.snap Updates config parsing snapshot to include the new auto_update field (default None).
crates/prek/src/snapshots/prek__config__tests__read_config_with_nested_merge_keys.snap Updates snapshot for new Config field.
crates/prek/src/snapshots/prek__config__tests__read_config_with_merge_keys.snap Updates snapshot for new Config field.
crates/prek/src/snapshots/prek__config__tests__parse_repos.snap Updates snapshot for new Config field.
crates/prek/src/snapshots/prek__config__tests__parse_repos-6.snap Updates snapshot for new Config field.
crates/prek/src/snapshots/prek__config__tests__parse_repos-4.snap Updates snapshot for new Config field.
crates/prek/src/snapshots/prek__config__tests__parse_repos-3.snap Updates snapshot for new Config field.
crates/prek/src/snapshots/prek__config__tests__parse_hooks-3.snap Updates snapshot for new Config field.
crates/prek/src/snapshots/prek__config__tests__numeric_rev_is_parsed_as_string.snap Updates snapshot for new Config field.
crates/prek/src/snapshots/prek__config__tests__meta_hooks-5.snap Updates snapshot for new Config field.
crates/prek/src/snapshots/prek__config__tests__language_version.snap Updates snapshot for new Config field.
crates/prek/src/settings.rs Updates cooldown resolution logic to incorporate project-level cooldown (between CLI and global).
crates/prek/src/main.rs Passes cooldown + filesystem options into auto_update for per-project resolution; changes --show-settings behavior for this command.
crates/prek/src/hook.rs Updates an internal test Config literal to include the new auto_update field.
crates/prek/src/config.rs Introduces AutoUpdateOptions and adds Config.auto_update field (project-level).
crates/prek/src/cli/mod.rs Updates --cooldown-days docs to mention project config fallback.
crates/prek/src/cli/auto_update/source.rs Resolves cooldown per project and includes it in repo-target grouping + evaluation.
crates/prek/src/cli/auto_update/mod.rs Plumbs CLI cooldown + global filesystem options into repo source collection; drops global cooldown param from per-repo evaluation path.
Comments suppressed due to low confidence (1)

docs/reference/configuration.md:20

  • The docs describe auto_update.cooldown_days as an unconstrained “integer days”, but the implementation uses u8 (and the JSON schema enforces 0..=255). Document the valid range (or at least note the 255-day maximum) so users aren’t surprised by parse/CLI validation failures for larger values.
Default cooldown for `prek auto-update`.

- Type: integer days
- Default: `0`
- CLI override: `prek auto-update --cooldown-days <DAYS>`

Comment thread crates/prek/src/main.rs
Comment thread crates/prek/src/config.rs
Base automatically changed from global-config to master May 5, 2026 05:11
@j178 j178 force-pushed the auto-update-settings branch from 1ca704d to b66a0b4 Compare May 5, 2026 05:16
Copilot AI review requested due to automatic review settings May 5, 2026 05:26
@j178 j178 merged commit 5f94f6f into master May 5, 2026
33 checks passed
@j178 j178 deleted the auto-update-settings branch May 5, 2026 05:27
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Reviewed commit: 525a0c428a

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Comment thread crates/prek/src/main.rs
let filesystem = FilesystemOptions::user()?;
let settings = AutoUpdateSettings::resolve(&args, filesystem.as_ref());
show_settings!(settings);
show_settings!(args);

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P2 Badge Preserve resolved settings in auto-update debug output

--show-settings is documented as showing resolved settings, but this branch now calls show_settings!(args) before running auto_update, so it prints only raw AutoUpdateArgs and exits without ever resolving project/global auto_update.cooldown_days precedence. In practice, prek auto-update --show-settings can no longer reveal the effective cooldown when it comes from config files, which is a regression for debugging configuration behavior.

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Pull request overview

Copilot reviewed 25 out of 25 changed files in this pull request and generated 2 comments.

Comment thread crates/prek/src/main.rs
Comment on lines 377 to 399
@@ -394,7 +393,8 @@ async fn run(cli: Cli) -> Result<ExitStatus> {
args.jobs,
args.dry_run || args.check,
args.exit_code || args.check,
settings.cooldown_days,
args.cooldown_days,
filesystem,
printer,
)
Comment thread crates/prek/src/settings.rs
Comment on lines +98 to 112
pub(crate) fn resolve(
cli_cooldown_days: Option<u8>,
filesystem: Option<&FilesystemOptions>,
project_cooldown_days: Option<u8>,
) -> Self {
Self {
cooldown_days: args
.cooldown_days
cooldown_days: cli_cooldown_days
.or(project_cooldown_days)
.or_else(|| {
filesystem
.and_then(|fs| fs.auto_update.as_ref())
.and_then(|au| au.cooldown_days)
.and_then(|options| options.cooldown_days)
})
.unwrap_or_default(),
}
@BrewTestBot BrewTestBot mentioned this pull request May 5, 2026
Merged
tmeijn pushed a commit to tmeijn/dotfiles that referenced this pull request May 8, 2026
build(deps): update prek to v0.3.13
c03b3be 
This MR contains the following updates:

| Package | Update | Change |
|---|---|---|
| [prek](https://github.com/j178/prek) | patch | `0.3.1` → `0.3.13` |

MR created with the help of [el-capitano/tools/renovate-bot](https://gitlab.com/el-capitano/tools/renovate-bot).

**Proposed changes to behavior should be submitted there as MRs.**

---

### Release Notes

<details>
<summary>j178/prek (prek)</summary>

### [`v0.3.13`](https://github.com/j178/prek/blob/HEAD/CHANGELOG.md#0313)

[Compare Source](j178/prek@v0.3.12...v0.3.13)

Released on 2026-05-06.

##### Bug fixes

- Respect hook filters for message files ([#&#8203;2049](j178/prek#2049))

##### Documentation

- Add Godot Engine to users in README ([#&#8203;2047](j178/prek#2047))

##### Contributors

- [@&#8203;j178](https://github.com/j178)
- [@&#8203;Calinou](https://github.com/Calinou)

### [`v0.3.12`](https://github.com/j178/prek/blob/HEAD/CHANGELOG.md#0312)

[Compare Source](j178/prek@v0.3.11...v0.3.12)

Released on 2026-05-05.

##### Highlights

`auto_update.cooldown_days` is now available in both the user-level global
config (`~/.config/prek/prek.toml` on Linux and macOS, or
`$XDG_CONFIG_HOME/prek/prek.toml` when set; `%APPDATA%\prek\prek.toml` on
Windows) and project config. Set a user default for `prek auto-update`, then
override it per project when a repository needs a different update cadence.

```toml
[auto_update]
cooldown_days = 7
```

##### Enhancements

- Add global auto-update cooldown config ([#&#8203;2041](j178/prek#2041))
- Add project auto-update cooldown config ([#&#8203;2044](j178/prek#2044))
- Support `language: dart` ([#&#8203;1146](j178/prek#1146))

##### Bug fixes

- Pass commit message file to workspace hooks ([#&#8203;2043](j178/prek#2043))
- Preserve non-UTF8 filenames from git ([#&#8203;2023](j178/prek#2023))
- ruby: put resolved Ruby's bin dir on `$PATH` for `gem` invocations ([#&#8203;2021](j178/prek#2021))

##### Documentation

- Update docs with the new logo and icon ([#&#8203;2025](j178/prek#2025))
- Point schema docs to SchemaStore ([#&#8203;2039](j178/prek#2039))

##### Contributors

- [@&#8203;j178](https://github.com/j178)
- [@&#8203;xiaoyanli-lyft](https://github.com/xiaoyanli-lyft)
- [@&#8203;Lutra-Fs](https://github.com/Lutra-Fs)

### [`v0.3.11`](https://github.com/j178/prek/blob/HEAD/CHANGELOG.md#0311)

[Compare Source](j178/prek@v0.3.10...v0.3.11)

Released on 2026-04-27.

##### Highlights

Hook entries now have an explicit `shell` option for shell snippets. Set
`shell: sh`, `bash`, `pwsh`, `powershell`, or `cmd` when an entry should be
evaluated by that shell; leaving it unset keeps prek's direct argv execution.

`prek auto-update` can now filter tag candidates before choosing an update.
Both options take glob patterns: use `--include-tag` to only consider matching
tag names, and `--exclude-tag` to skip matching tags such as moving tags or
prereleases.

##### Enhancements

- Add `auto-update --exclude-repo <repo>` to skip repos ([#&#8203;1983](j178/prek#1983))
- Add `auto-update --exit-code` to exit with non-zero on updates ([#&#8203;2002](j178/prek#2002))
- Add `auto-update --include-tag <pattern>`/`--exclude-tag <pattern>` to filter tags ([#&#8203;1984](j178/prek#1984))
- Adds an explicit `shell` hook option for entries that should run as shell source ([#&#8203;2004](j178/prek#2004))
- Make `--hook-dir` optional for hook-impl ([#&#8203;1989](j178/prek#1989))
- Skip shim warning when `--script-version` is missing ([#&#8203;1990](j178/prek#1990))

##### Bug fixes

- Install Ruby executable in gem bin ([#&#8203;2017](j178/prek#2017))
- Use dedicated Android npm package ([#&#8203;1982](j178/prek#1982))
- Use stable repo keys without breaking cached clones ([#&#8203;1995](j178/prek#1995))

##### Documentation

- Explain prek name ([#&#8203;1980](j178/prek#1980))
- Clarify `pass_filenames` concurrency docs ([#&#8203;1999](j178/prek#1999))
- Reorganize documentation references ([#&#8203;2005](j178/prek#2005))
- Clarify hook author manifest env docs ([#&#8203;1991](j178/prek#1991))
- docs: add Sentry to users list ([#&#8203;1981](j178/prek#1981))

##### Contributors

- [@&#8203;j178](https://github.com/j178)

### [`v0.3.10`](https://github.com/j178/prek/blob/HEAD/CHANGELOG.md#0310)

[Compare Source](j178/prek@v0.3.9...v0.3.10)

Released on 2026-04-21.

##### Enhancements

- Disallow rev for non-remote repos in schema ([#&#8203;1964](j178/prek#1964))
- Hide up-to-date output in non-verbose mode ([#&#8203;1942](j178/prek#1942))
- Improve merge conflict marker detection ([#&#8203;1937](j178/prek#1937))
- Keep finished hooks visible ([#&#8203;1967](j178/prek#1967))
- Preserve frozen comment spacing in auto-update ([#&#8203;1945](j178/prek#1945))
- Reimplement `@j178/prek` npm package ([#&#8203;1973](j178/prek#1973))

##### Bug fixes

- Prefer stable Rust toolchains ([#&#8203;1974](j178/prek#1974))

##### Documentation

- Add `SKILL.md` for prek ([#&#8203;1950](j178/prek#1950))
- Document `gh skill install j178/prek prek` to install prek skill for agents ([#&#8203;1951](j178/prek#1951))
- Improve compatibility and migration docs ([#&#8203;1940](j178/prek#1940))

##### Other changes

- Sync latest identify tags ([#&#8203;1947](j178/prek#1947))

##### Contributors

- [@&#8203;github-actions](https://github.com/github-actions)
- [@&#8203;renovate](https://github.com/renovate)
- [@&#8203;j178](https://github.com/j178)

### [`v0.3.9`](https://github.com/j178/prek/blob/HEAD/CHANGELOG.md#039)

[Compare Source](j178/prek@v0.3.8...v0.3.9)

Released on 2026-04-13.

##### Highlight

`prek auto-update` is now stricter about pinned revisions and more useful in CI.
It now keeps `rev` and `# frozen:` comments in sync, can detect
[impostor commits](https://docs.zizmor.sh/audits/#impostor-commit) when validating pinned SHAs,
and lets you use `prek auto-update --check` to fail on both available updates and frozen-ref
mismatches without rewriting the config.

Examples:

```console
$ prek auto-update

# updates revs and repairs stale `# frozen:` comments

$ prek auto-update --freeze

# writes frozen SHAs with matching `# frozen: <tag>` comments

$ prek auto-update --check

# exits non-zero when updates are available, a `# frozen:` comment is stale,
# or a pinned SHA does not belong to the fetched upstream refs
```

##### Enhancements

- Check and sync frozen comments during auto-update ([#&#8203;1896](j178/prek#1896))
- Handle impostor commits in auto-update ([#&#8203;1919](j178/prek#1919))
- Add experimental `language: dotnet` support ([#&#8203;1871](j178/prek#1871))
- Honor repo and worktree `core.hooksPath` ([#&#8203;1892](j178/prek#1892))
- Add `prek run --no-fail-fast` to override config file ([#&#8203;1859](j178/prek#1859))
- Add `forbid-new-submodules` as builtin hook ([#&#8203;1853](j178/prek#1853))
- Clean stale patch files in `cache gc` ([#&#8203;1877](j178/prek#1877))
- Display auto-update results by config entry ([#&#8203;1922](j178/prek#1922))
- Restrict patch directory permissions ([#&#8203;1876](j178/prek#1876))
- Show tag names in `auto-update --freeze` output ([#&#8203;1916](j178/prek#1916))
- Use a bitset for hook stages ([#&#8203;1860](j178/prek#1860))

##### Bug fixes

- Canonicalize CWD and GIT\_ROOT paths ([#&#8203;1878](j178/prek#1878))
- Ensure quotes are added for non-string revisions in `auto-update` ([#&#8203;1936](j178/prek#1936))

##### Documentation

- Update docs for case of hooks modifying files with a non-zero exit code ([#&#8203;1879](j178/prek#1879))

##### Contributors

- [@&#8203;RicardoVercetti](https://github.com/RicardoVercetti)
- [@&#8203;nathanjmcdougall](https://github.com/nathanjmcdougall)
- [@&#8203;renovate](https://github.com/renovate)
- [@&#8203;sadjow](https://github.com/sadjow)
- [@&#8203;j178](https://github.com/j178)

### [`v0.3.8`](https://github.com/j178/prek/blob/HEAD/CHANGELOG.md#038)

[Compare Source](j178/prek@v0.3.6...v0.3.8)

Released on 2026-03-23.

##### Enhancements

- Add experimental `language: deno` support ([#&#8203;1516](j178/prek#1516))
- Add `pretty-format-json` as builtin hook ([#&#8203;915](j178/prek#915))
- Add `check-vcs-permalinks` as builtin hook ([#&#8203;1842](j178/prek#1842))
- Add `check-illegal-windows-names` as builtin hook ([#&#8203;1841](j178/prek#1841))
- Add `check-shebang-scripts-are-executable` builtin hook ([#&#8203;1847](j178/prek#1847))
- Add `destroyed-symlinks` builtin hook ([#&#8203;1851](j178/prek#1851))
- Add `file-contents-sorter` as builtin hook ([#&#8203;1846](j178/prek#1846))
- Add `--all` flag to `prek uninstall` ([#&#8203;1817](j178/prek#1817))
- Improve file pattern parse errors ([#&#8203;1829](j178/prek#1829))
- Validate `uv` binary after download ([#&#8203;1825](j178/prek#1825))

##### Bug fixes

- Fix workspace-relative added file paths ([#&#8203;1852](j178/prek#1852))
- Relax alias-anchor ratio check for check-yaml ([#&#8203;1839](j178/prek#1839))

##### Contributors

- [@&#8203;j178](https://github.com/j178)
- [@&#8203;shaanmajid](https://github.com/shaanmajid)
- [@&#8203;mvanhorn](https://github.com/mvanhorn)
- [@&#8203;feliblo](https://github.com/feliblo)
- [@&#8203;Tiryoh](https://github.com/Tiryoh)

### [`v0.3.6`](https://github.com/j178/prek/blob/HEAD/CHANGELOG.md#036)

[Compare Source](j178/prek@v0.3.5...v0.3.6)

Released on 2026-03-16.

##### Enhancements

- Allow selectors for hook ids containing colons ([#&#8203;1782](j178/prek#1782))
- Rename `prek install-hooks` to `prek prepare-hooks` and `prek install --install-hooks` to `prek install --prepare-hooks` ([#&#8203;1766](j178/prek#1766))
- Retry auth-failed repo clones with terminal prompts enabled ([#&#8203;1761](j178/prek#1761))

##### Performance

- Optimize `detect_private_key` by chunked reading and using aho-corasick ([#&#8203;1791](j178/prek#1791))
- Optimize `fix_byte_order_marker` by shifting file contents in place ([#&#8203;1790](j178/prek#1790))

##### Bug fixes

- Align stage defaulting behavior with pre-commit ([#&#8203;1788](j178/prek#1788))
- Make sure child output is drained in the PTY subprocess ([#&#8203;1768](j178/prek#1768))
- fix(golang): use `GOTOOLCHAIN=local` when probing system go ([#&#8203;1797](j178/prek#1797))

##### Documentation

- Disambiguate “hook” terminology by renaming "Git hooks" to "Git shims" ([#&#8203;1776](j178/prek#1776))
- Document compatibility with pre-commit ([#&#8203;1767](j178/prek#1767))
- Update configuration.md with TOML 1.1 notes ([#&#8203;1764](j178/prek#1764))

##### Other changes

- Sync latest identify tags ([#&#8203;1798](j178/prek#1798))

##### Contributors

- [@&#8203;github-actions](https://github.com/github-actions)
- [@&#8203;j178](https://github.com/j178)
- [@&#8203;pcastellazzi](https://github.com/pcastellazzi)
- [@&#8203;deadnews](https://github.com/deadnews)
- [@&#8203;copilot-swe-agent](https://github.com/copilot-swe-agent)

### [`v0.3.5`](https://github.com/j178/prek/blob/HEAD/CHANGELOG.md#035)

[Compare Source](j178/prek@v0.3.4...v0.3.5)

Released on 2026-03-09.

##### Enhancements

- Add automatic Ruby download support using rv binaries ([#&#8203;1668](j178/prek#1668))
- Adjust open file limit on process startup ([#&#8203;1705](j178/prek#1705))
- Allow parallel gem retry ([#&#8203;1732](j178/prek#1732))
- Enable system-proxy feature on reqwest ([#&#8203;1738](j178/prek#1738))
- Expose `--git-dir` to force hook installation target ([#&#8203;1723](j178/prek#1723))
- Pass `--quiet`, `--verbose`, and `--no-progress` through `prek install` into generated hook scripts ([#&#8203;1753](j178/prek#1753))
- Respect `core.sharedRepository` for hook permissions ([#&#8203;1755](j178/prek#1755))
- Support legacy mode hook script ([#&#8203;1706](j178/prek#1706))
- rust: support `cli:` git dependency 4th segment package disambiguation ([#&#8203;1747](j178/prek#1747))

##### Bug fixes

- Fix Python `__main__.py` entry ([#&#8203;1741](j178/prek#1741))
- python: strip `UV_SYSTEM_PYTHON` from `uv venv` and `pip install` commands ([#&#8203;1756](j178/prek#1756))

##### Other changes

- Sync latest identify tags ([#&#8203;1733](j178/prek#1733))

##### Contributors

- [@&#8203;Dev-iL](https://github.com/Dev-iL)
- [@&#8203;tennox](https://github.com/tennox)
- [@&#8203;shaanmajid](https://github.com/shaanmajid)
- [@&#8203;is-alnilam](https://github.com/is-alnilam)
- [@&#8203;github-actions](https://github.com/github-actions)
- [@&#8203;j178](https://github.com/j178)

### [`v0.3.4`](https://github.com/j178/prek/blob/HEAD/CHANGELOG.md#034)

[Compare Source](j178/prek@v0.3.3...v0.3.4)

Released on 2026-02-28.

##### Enhancements

- Allow `pass_filenames` to accept a positive integer ([#&#8203;1698](j178/prek#1698))
- Install and compile gems in parallel ([#&#8203;1674](j178/prek#1674))
- Sync identify file-type mappings with pre-commit identify ([#&#8203;1660](j178/prek#1660))
- Use `--locked` for Rust `cargo install` commands ([#&#8203;1661](j178/prek#1661))
- Add `PREK_MAX_CONCURRENCY` environment variable for configuring maximum concurrency ([#&#8203;1697](j178/prek#1697))
- Add `PREK_LOG_TRUNCATE_LIMIT` environment variable for configuring log truncation ([#&#8203;1679](j178/prek#1679))
- Add support for `python -m prek` ([#&#8203;1686](j178/prek#1686))

##### Bug fixes

- Skip invalid Rust toolchains instead of failing ([#&#8203;1699](j178/prek#1699))

##### Performance

- Bitset-based TagSet refactor: precompute tag masks and speed up hook type filtering ([#&#8203;1665](j178/prek#1665))

##### Documentation

- Document `winget install j178.Prek` ([#&#8203;1670](j178/prek#1670))

##### Contributors

- [@&#8203;uplsh580](https://github.com/uplsh580)
- [@&#8203;Svecco](https://github.com/Svecco)
- [@&#8203;dbast](https://github.com/dbast)
- [@&#8203;drichardson](https://github.com/drichardson)
- [@&#8203;JP-Ellis](https://github.com/JP-Ellis)
- [@&#8203;j178](https://github.com/j178)
- [@&#8203;is-alnilam](https://github.com/is-alnilam)
- [@&#8203;copilot-swe-agent](https://github.com/copilot-swe-agent)

### [`v0.3.3`](https://github.com/j178/prek/blob/HEAD/CHANGELOG.md#033)

[Compare Source](j178/prek@v0.3.2...v0.3.3)

Released on 2026-02-15.

##### Enhancements

- Read Python version specifier from hook repo `pyproject.toml` ([#&#8203;1596](j178/prek#1596))
- Add `#:schema` directives to generated prek.toml ([#&#8203;1597](j178/prek#1597))
- Add `prek util list-builtins` command ([#&#8203;1600](j178/prek#1600))
- Expand install source detection to `mise`, `uv tool`, `pipx`, and `asdf` ([#&#8203;1605](j178/prek#1605), [#&#8203;1607](j178/prek#1607))
- Add progress bar to `cache clean` and show removal summary ([#&#8203;1616](j178/prek#1616))
- Make `yaml-to-toml` CONFIG argument optional ([#&#8203;1593](j178/prek#1593))
- `prek uninstall` removes legacy scripts too ([#&#8203;1622](j178/prek#1622))

##### Bug fixes

- Fix underflow when formatting summary output ([#&#8203;1626](j178/prek#1626))
- Match `files/exclude` filter against relative path of nested project ([#&#8203;1624](j178/prek#1624))
- Select `musllinux` wheel tag for uv on musl-based distros ([#&#8203;1628](j178/prek#1628))

##### Documentation

- Clarify `prek list` description ([#&#8203;1604](j178/prek#1604))

##### Contributors

- [@&#8203;ichoosetoaccept](https://github.com/ichoosetoaccept)
- [@&#8203;shaanmajid](https://github.com/shaanmajid)
- [@&#8203;soraxas](https://github.com/soraxas)
- [@&#8203;9999years](https://github.com/9999years)
- [@&#8203;j178](https://github.com/j178)

### [`v0.3.2`](https://github.com/j178/prek/blob/HEAD/CHANGELOG.md#032)

[Compare Source](j178/prek@v0.3.1...v0.3.2)

Released on 2026-02-06.

##### Highlights

- **`prek.toml` is here!**

  You can now use `prek.toml` as an alternative to `.pre-commit-config.yaml` for configuring prek. `prek.toml` mirrors the structure of `.pre-commit-config.yaml`, but TOML is less error-prone. Your existing `.pre-commit-config.yaml` will continue to work, but for new users and new projects, `prek.toml` may make more sense. If you want to switch, run `prek util yaml-to-toml` to convert YAML configs to `prek.toml`. See [configuration docs](configuration.md) for details.

  For example, this config:

  ```yaml
  repos:
    - repo: https://github.com/pre-commit/pre-commit-hooks
      rev: v6.0.0
      hooks:
        - id: check-yaml
  ```

  Can be written as `prek.toml` like this:

  ```toml
  [[repos]]
  repo = "https://github.com/pre-commit/pre-commit-hooks"
  rev = "v6.0.0"
  hooks = [ { id = "check-yaml" } ]
  ```

- **`serde-yaml` has been replaced with `serde-saphyr`**

  We replaced the long-deprecated `serde-yaml` crate with [`serde-saphyr`](https://crates.io/crates/serde-saphyr) for YAML parsing. It is written in safe Rust and has better error messages, performance, and security. This lets us provide precise location information for configuration parsing errors, which should make it easier to fix config issues.

  For example, this invalid config:

  ```yaml
  repos:
    - repo: https://github.com/crate-ci/typos
      hooks:
        - id: typos
  ```

  Before:

  ```console
  $ prek run
  error: Failed to parse `.pre-commit-config.yaml`
    caused by: Invalid remote repo: missing field `rev`
  ```

  Now:

  ```console
  $ prek run
  error: Failed to parse `.pre-commit-config.yaml`
  caused by: error: line 2 column 5: missing field `rev` at line 2, column 5
  --> <input>:2:5
    |
  1 | repos:
  2 |   - repo: https://github.com/crate-ci/typos
    |     ^ missing field `rev` at line 2, column 5
  3 |     hooks:
  4 |       - id: typos
    |
  ```

- **`prek util` subcommands**

  We added a new `prek util` top-level command for miscellaneous utilities that don't fit into other categories. The first two utilities are:

  - `prek util identify`: shows the identification tags of files that prek uses for file filtering, which can be useful for debugging and writing `types/types_or/exclude_types` filters.
  - `prek util yaml-to-toml`: converts `.pre-commit-config.yaml` to `prek.toml`.

  We also moved `prek init-template-dir` under `prek util` for better organization. The old `prek init-template-dir` command is still available (hidden) as an alias for backward compatibility.

##### Enhancements

- Add `prek util identify` subcommand ([#&#8203;1554](j178/prek#1554))
- Add `prek util yaml-to-toml` to convert `.pre-commit-config.yaml` to `prek.toml` ([#&#8203;1584](j178/prek#1584))
- Detect install source for actionable upgrade hints ([#&#8203;1540](j178/prek#1540))
- Detect prek installed by the standalone installer ([#&#8203;1545](j178/prek#1545))
- Implement `serialize_yaml_scalar` using `serde-saphyr` ([#&#8203;1534](j178/prek#1534))
- Improve max cli arguments length calculation ([#&#8203;1518](j178/prek#1518))
- Move `identify` and `init-template-dir` under the `prek util` top-level command ([#&#8203;1574](j178/prek#1574))
- Replace serde-yaml with serde-saphyr (again) ([#&#8203;1520](j178/prek#1520))
- Show precise location for config parsing error ([#&#8203;1530](j178/prek#1530))
- Support `Julia` language ([#&#8203;1519](j178/prek#1519))
- Support `prek.toml` ([#&#8203;1271](j178/prek#1271))
- Added `PREK_QUIET` environment variable support ([#&#8203;1513](j178/prek#1513))
- Remove upper bound constraint of uv version ([#&#8203;1588](j178/prek#1588))

##### Bug fixes

- Do not make the child a session leader ([#&#8203;1586](j178/prek#1586))
- Fix FilePattern schema to accept plain strings ([#&#8203;1564](j178/prek#1564))
- Use semver fallback sort when tag timestamps are equal ([#&#8203;1579](j178/prek#1579))

##### Documentation

- Add `OpenClaw` to the list of users ([#&#8203;1517](j178/prek#1517))
- Add `cachix/devenv`, `apache/lucene`, `copper-project/copper-rs` as projects using prek ([#&#8203;1531](j178/prek#1531), [#&#8203;1514](j178/prek#1514), [#&#8203;1569](j178/prek#1569))
- Add document about authoring remote hooks ([#&#8203;1571](j178/prek#1571))
- Add `llms.txt` generation for LLM-friendly documentation ([#&#8203;1553](j178/prek#1553))
- Document using `--refresh` to pick up `.prekignore` changes ([#&#8203;1575](j178/prek#1575))
- Fix PowerShell completion instruction syntax ([#&#8203;1568](j178/prek#1568))
- Update quick start to use `prek.toml` ([#&#8203;1576](j178/prek#1576))

##### Other changes

- Include `prek.toml` in run hint for config filename ([#&#8203;1578](j178/prek#1578))

##### Contributors

- [@&#8203;fatelei](https://github.com/fatelei)
- [@&#8203;domenkozar](https://github.com/domenkozar)
- [@&#8203;makeecat](https://github.com/makeecat)
- [@&#8203;fllesser](https://github.com/fllesser)
- [@&#8203;j178](https://github.com/j178)
- [@&#8203;copilot-swe-agent](https://github.com/copilot-swe-agent)
- [@&#8203;oopscompiled](https://github.com/oopscompiled)
- [@&#8203;rmuir](https://github.com/rmuir)
- [@&#8203;shaanmajid](https://github.com/shaanmajid)

</details>

---

### Configuration

📅 **Schedule**: (UTC)

- Branch creation
  - At any time (no schedule defined)
- Automerge
  - At any time (no schedule defined)

🚦 **Automerge**: Disabled by config. Please merge this manually once you are satisfied.

♻ **Rebasing**: Whenever MR becomes conflicted, or you tick the rebase/retry checkbox.

🔕 **Ignore**: Close this MR and you won't be reminded about this update again.

---

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---

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Make --cooldown-days a top level key

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@j178