Codestin Search App

j178 · 2026-06-09T13:30:06Z

Closes #53

codecov · 2026-06-09T13:32:26Z

Codecov Report

❌ Patch coverage is 93.40659% with 12 lines in your changes missing coverage. Please review.
✅ Project coverage is 92.58%. Comparing base (aca63ee) to head (5a6528a).
⚠️ Report is 35 commits behind head on master.

Files with missing lines	Patch %	Lines
crates/prek/src/languages/coursier.rs	94.91%	9 Missing ⚠️
crates/prek/src/languages/mod.rs	40.00%	3 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #2194      +/-   ##
==========================================
+ Coverage   92.50%   92.58%   +0.07%     
==========================================
  Files         122      123       +1     
  Lines       25978    26364     +386     
==========================================
+ Hits        24032    24410     +378     
- Misses       1946     1954       +8

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prek-ci-bot · 2026-06-09T13:34:18Z

📦 Cargo Bloat Comparison

Binary size change: +0.38% (26.5 MiB → 26.6 MiB)

Expand for cargo-bloat output

Head Branch Results

 File  .text     Size             Crate Name
 1.2%   2.5% 332.0KiB        aws_lc_sys aws_lc_0_41_0_aes_gcm_encrypt_avx512
 1.2%   2.5% 332.0KiB        aws_lc_sys aws_lc_0_41_0_aes_gcm_decrypt_avx512
 0.3%   0.7%  90.3KiB              prek prek::languages::<impl prek::config::Language>::run::{{closure}}::{{closure}}
 0.3%   0.6%  85.7KiB              prek prek::languages::<impl prek::config::Language>::run::{{closure}}::{{closure}}
 0.3%   0.6%  75.2KiB              prek prek::languages::<impl prek::config::Language>::install::{{closure}}
 0.2%   0.5%  65.2KiB             prek? <prek::cli::Command as clap_builder::derive::Subcommand>::augment_subcommands
 0.2%   0.4%  49.5KiB              prek prek::run::{{closure}}
 0.2%   0.4%  49.4KiB annotate_snippets annotate_snippets::renderer::render::render
 0.2%   0.3%  44.2KiB              prek prek::cli::run::run::run::{{closure}}
 0.2%   0.3%  43.9KiB             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%  31.9KiB             prek? <prek::cli::RunOptions as clap_builder::derive::Args>::augment_args
 0.1%   0.2%  31.0KiB               std core::ptr::drop_in_place<prek::languages::<impl prek::config::Language>::install::{{closure}}>
 0.1%   0.2%  29.4KiB     granit_parser granit_parser::scanner::Scanner<T>::fetch_more_tokens
 0.1%   0.2%  28.3KiB             prek? <prek::config::_::<impl serde_core::de::Deserialize for prek::config::RemoteHook>::deserialize::__Visitor as serde_core::de::Visitor>::visit_map
 0.1%   0.2%  28.0KiB        aws_lc_sys aws_lc_0_41_0_edwards25519_scalarmuldouble_alt
 0.1%   0.2%  27.5KiB        aws_lc_sys aws_lc_0_41_0_edwards25519_scalarmuldouble
 0.1%   0.2%  26.1KiB              prek prek::cli::try_repo::try_repo::{{closure}}
 0.1%   0.2%  24.8KiB             prek? <prek::config::_::<impl serde_core::de::Deserialize for prek::config::LocalHook>::deserialize::__Visitor as serde_core::de::Visitor>::visit_map
 0.1%   0.2%  22.9KiB     granit_parser granit_parser::scanner::Scanner<T>::fetch_more_tokens
 0.1%   0.2%  22.3KiB         [Unknown] Lp384_montjscalarmul_alt_p384_montjadd
42.2%  86.4%  11.2MiB                   And 24220 smaller methods. Use -n N to show more.
48.8% 100.0%  13.0MiB                   .text section size, the file size is 26.6MiB

Base Branch Results

 File  .text     Size             Crate Name
 1.2%   2.5% 332.0KiB        aws_lc_sys aws_lc_0_41_0_aes_gcm_encrypt_avx512
 1.2%   2.5% 332.0KiB        aws_lc_sys aws_lc_0_41_0_aes_gcm_decrypt_avx512
 0.3%   0.7%  86.8KiB              prek prek::languages::<impl prek::config::Language>::run::{{closure}}::{{closure}}
 0.3%   0.6%  82.3KiB              prek prek::languages::<impl prek::config::Language>::run::{{closure}}::{{closure}}
 0.3%   0.5%  69.9KiB              prek prek::languages::<impl prek::config::Language>::install::{{closure}}
 0.2%   0.5%  64.9KiB             prek? <prek::cli::Command as clap_builder::derive::Subcommand>::augment_subcommands
 0.2%   0.4%  49.5KiB              prek prek::run::{{closure}}
 0.2%   0.4%  49.4KiB annotate_snippets annotate_snippets::renderer::render::render
 0.2%   0.3%  44.0KiB              prek prek::cli::run::run::run::{{closure}}
 0.2%   0.3%  43.1KiB             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%  31.8KiB             prek? <prek::cli::RunOptions as clap_builder::derive::Args>::augment_args
 0.1%   0.2%  29.9KiB               std core::ptr::drop_in_place<prek::languages::<impl prek::config::Language>::install::{{closure}}>
 0.1%   0.2%  29.4KiB     granit_parser granit_parser::scanner::Scanner<T>::fetch_more_tokens
 0.1%   0.2%  28.0KiB        aws_lc_sys aws_lc_0_41_0_edwards25519_scalarmuldouble_alt
 0.1%   0.2%  27.8KiB             prek? <prek::config::_::<impl serde_core::de::Deserialize for prek::config::RemoteHook>::deserialize::__Visitor as serde_core::de::Visitor>::visit_map
 0.1%   0.2%  27.5KiB        aws_lc_sys aws_lc_0_41_0_edwards25519_scalarmuldouble
 0.1%   0.2%  26.1KiB              prek prek::cli::try_repo::try_repo::{{closure}}
 0.1%   0.2%  23.8KiB             prek? <prek::config::_::<impl serde_core::de::Deserialize for prek::config::LocalHook>::deserialize::__Visitor as serde_core::de::Visitor>::visit_map
 0.1%   0.2%  22.9KiB     granit_parser granit_parser::scanner::Scanner<T>::fetch_more_tokens
 0.1%   0.2%  22.3KiB         [Unknown] Lp384_montjscalarmul_alt_p384_montjadd
42.0%  86.4%  11.1MiB                   And 24171 smaller methods. Use -n N to show more.
48.6% 100.0%  12.9MiB                   .text section size, the file size is 26.5MiB

prek-ci-bot · 2026-06-09T13:34:19Z

⚡️ Hyperfine Benchmarks

Summary: 1 regressions, 0 improvements above the 10% threshold.

Environment

OS: Linux 6.17.0-1015-azure
CPU: 4 cores
prek version: prek 0.4.4+39 (856ca49 2026-06-09)
Rust version: rustc 1.96.0 (ac68faa20 2026-05-25)
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`	1.9 ± 0.1	1.8	2.3	1.00
`prek-head --version`	1.9 ± 0.0	1.8	2.0	1.00 ± 0.05

`prek list`

Command	Mean [ms]	Min [ms]	Max [ms]	Relative
`prek-base list`	7.5 ± 0.1	7.3	7.7	1.00
`prek-head list`	7.6 ± 0.1	7.3	7.8	1.01 ± 0.02

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

Command	Mean [ms]	Min [ms]	Max [ms]	Relative
`prek-base validate-config .pre-commit-config.yaml`	2.7 ± 0.0	2.6	2.8	1.00
`prek-head validate-config .pre-commit-config.yaml`	3.1 ± 2.8	2.6	22.3	1.16 ± 1.04

⚠️ Warning: Performance regression for prek validate-config .pre-commit-config.yaml: 16.1000% slower

`prek sample-config`

Command	Mean [ms]	Min [ms]	Max [ms]	Relative
`prek-base sample-config`	2.2 ± 0.0	2.1	2.3	1.02 ± 0.03
`prek-head sample-config`	2.2 ± 0.1	2.1	2.3	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`	59.2 ± 2.6	55.6	62.1	1.01 ± 0.07
`prek-head run --all-files`	58.5 ± 3.0	55.6	62.3	1.00

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

Command	Mean [ms]	Min [ms]	Max [ms]	Relative
`prek-base run --all-files`	58.0 ± 1.9	55.0	61.9	1.00
`prek-head run --all-files`	59.2 ± 2.2	55.8	62.8	1.02 ± 0.05

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`	58.0 ± 2.4	54.9	63.3	1.00
`prek-head run --all-files`	58.4 ± 2.4	55.0	63.9	1.01 ± 0.06

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`	16.1 ± 0.4	15.4	17.2	1.01 ± 0.03
`prek-head run trailing-whitespace --all-files`	15.9 ± 0.3	15.5	16.9	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`	20.2 ± 1.4	18.6	23.8	1.00
`prek-head run end-of-file-fixer --all-files`	20.9 ± 1.4	18.8	23.3	1.03 ± 0.10

`prek run check-json --all-files`

Command	Mean [ms]	Min [ms]	Max [ms]	Relative
`prek-base run check-json --all-files`	6.3 ± 0.2	6.0	6.6	1.00
`prek-head run check-json --all-files`	6.5 ± 0.2	6.0	7.0	1.03 ± 0.05

`prek run check-yaml --all-files`

Command	Mean [ms]	Min [ms]	Max [ms]	Relative
`prek-base run check-yaml --all-files`	6.3 ± 0.2	6.1	6.8	1.00
`prek-head run check-yaml --all-files`	6.4 ± 0.2	6.1	7.3	1.02 ± 0.04

`prek run check-toml --all-files`

Command	Mean [ms]	Min [ms]	Max [ms]	Relative
`prek-base run check-toml --all-files`	6.3 ± 0.2	6.0	6.7	1.01 ± 0.04
`prek-head run check-toml --all-files`	6.3 ± 0.2	6.0	6.7	1.00

`prek run check-xml --all-files`

Command	Mean [ms]	Min [ms]	Max [ms]	Relative
`prek-base run check-xml --all-files`	6.4 ± 0.2	6.0	7.0	1.00
`prek-head run check-xml --all-files`	6.5 ± 0.2	6.1	6.7	1.00 ± 0.04

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

Command	Mean [ms]	Min [ms]	Max [ms]	Relative
`prek-base run detect-private-key --all-files`	11.1 ± 2.0	9.5	19.8	1.03 ± 0.21
`prek-head run detect-private-key --all-files`	10.8 ± 0.9	9.6	12.5	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`	14.6 ± 0.6	13.7	15.8	1.00 ± 0.05
`prek-head run fix-byte-order-marker --all-files`	14.6 ± 0.5	13.8	16.0	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`	3.8 ± 0.0	3.8	3.9	1.02 ± 0.01
`prek-head install-hooks`	3.8 ± 0.0	3.7	3.8	1.00

`prek install-hooks (warm - with cache)`

Command	Mean [ms]	Min [ms]	Max [ms]	Relative
`prek-base install-hooks`	3.8 ± 0.0	3.7	3.8	1.00
`prek-head install-hooks`	3.9 ± 0.0	3.8	3.9	1.03 ± 0.01

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`	30.8 ± 0.8	29.7	32.4	1.00
`prek-head run`	33.8 ± 12.9	30.2	88.4	1.10 ± 0.42

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

Command	Mean [ms]	Min [ms]	Max [ms]	Relative
`prek-base run --files '*.json'`	6.7 ± 0.1	6.6	6.9	1.01 ± 0.02
`prek-head run --files '*.json'`	6.7 ± 0.1	6.5	6.9	1.00

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`	5.8 ± 0.1	5.7	5.9	1.00
`prek-head run --dry-run --all-files`	5.8 ± 0.1	5.7	5.9	1.00 ± 0.02

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`	8.9 ± 0.1	8.7	9.0	1.00
`prek-head run check-hooks-apply --all-files`	9.0 ± 0.1	8.9	9.0	1.01 ± 0.01

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

Command	Mean [ms]	Min [ms]	Max [ms]	Relative
`prek-base run check-useless-excludes --all-files`	8.8 ± 0.1	8.7	9.0	1.00
`prek-head run check-useless-excludes --all-files`	9.0 ± 0.1	8.8	9.1	1.02 ± 0.01

`prek run identity --all-files`

Command	Mean [ms]	Min [ms]	Max [ms]	Relative
`prek-base run identity --all-files`	8.4 ± 0.1	8.3	8.6	1.00
`prek-head run identity --all-files`	8.6 ± 0.1	8.3	8.9	1.02 ± 0.02

Copilot

Pull request overview

Adds first-class support for the coursier hook language in prek, enabling hooks to install and run Coursier-provided apps via a system cs/coursier executable. This extends the language backends under crates/prek/src/languages/ and wires the new backend into CI, docs, and the integration test suite.

Changes:

Implement coursier language backend (install + run) and add a dedicated cache bucket + env var wiring.
Update documentation to mark coursier as supported and describe configuration/behavior.
Add CI matrix + workflow setup and initial integration tests for the new language.

Reviewed changes

Copilot reviewed 11 out of 11 changed files in this pull request and generated 3 comments.

Show a summary per file

File	Description
scripts/generate_ci_matrix.py	Adds `coursier` to the language-test matrix filters.
docs/reference/configuration.md	Removes `coursier` from “not implemented yet” language list.
docs/proposals/hook-shell.md	Removes `coursier` from “not implemented yet” language list in proposal doc.
docs/languages.md	Documents `coursier` as supported, including behavior and examples.
crates/prek/tests/languages/main.rs	Registers the new `coursier` language test module.
crates/prek/tests/languages/coursier.rs	Adds initial integration tests for `coursier`.
crates/prek/src/store.rs	Introduces a `Coursier` cache bucket.
crates/prek/src/languages/mod.rs	Wires `Language::Coursier` into supported/install/run paths and cache buckets.
crates/prek/src/languages/coursier.rs	New `coursier` backend implementation.
crates/prek-consts/src/env_vars.rs	Adds `COURSIER_CACHE` env var constant.
.github/workflows/ci.yml	Installs Coursier in language-test jobs when `coursier` is in the matrix.

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Copilot

Pull request overview

Copilot reviewed 11 out of 11 changed files in this pull request and generated 1 comment.

Improve

This MR contains the following updates: | Package | Update | Change | |---|---|---| | [prek](https://github.com/j178/prek) | patch | `0.4.4` → `0.4.5` | 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> ### [`v0.4.5`](https://github.com/j178/prek/blob/HEAD/CHANGELOG.md#045) [Compare Source](j178/prek@v0.4.4...v0.4.5) Released on 2026-06-15. ##### ✨Highlights 0.4.5 completes `prek`'s pre-commit language coverage. With R, Conda, Perl, and coursier now supported, `prek` supports every language available in pre-commit, plus `prek`-only modern languages such as Bun and Deno. This is full feature parity with pre-commit. The last major compatibility gap is closed, and `prek` is now on the path to 1.0. ##### 💚 Sponsorship If `prek` saves time for you or your team, please consider sponsoring the project on [GitHub Sponsors](https://github.com/sponsors/j178). It helps keep new features, performance work, and maintenance moving. ##### Enhancements - Add `Perl` language support ([#2201](j178/prek#2201)) - Add `R` language support ([#2206](j178/prek#2206)) - Add `Conda` language support ([#2203](j178/prek#2203)) - Add `coursier` language support ([#2194](j178/prek#2194)) - Add group filters to list ([#2152](j178/prek#2152)) - Remove legacy repo path support ([#2150](j178/prek#2150)) - Skip cloning fully filtered remote repos ([#2151](j178/prek#2151)) ##### Performance - Avoid building JSON trees in syntax hooks ([#2156](j178/prek#2156)) - Scan mixed line endings without line vector ([#2160](j178/prek#2160)) - Skip file scan for always-run no-filename hooks ([#2155](j178/prek#2155)) - Use fixed buffer for EOF scan ([#2163](j178/prek#2163)) - Use fixed buffer for private key scan ([#2164](j178/prek#2164)) ##### Bug fixes - Fix pretty-format-json CRLF handling ([#2210](j178/prek#2210)) - Handle missing blobs in diff snapshots ([#2211](j178/prek#2211)) - Ignore coursier channel from working repo ([#2202](j178/prek#2202)) ##### Contributors - [@j178](https://github.com/j178) </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. --- - [ ] If you want to rebase/retry this MR, check this box --- This MR has been generated by [Mend Renovate](https://github.com/renovatebot/renovate).

Copilot AI review requested due to automatic review settings June 9, 2026 13:30

j178 added the enhancement New feature or request label Jun 9, 2026

Copilot started reviewing on behalf of j178 June 9, 2026 13:30 View session

Add coursier language support

344d9cf

j178 force-pushed the coursier branch from ecbad63 to 344d9cf Compare June 9, 2026 13:33

Copilot AI reviewed Jun 9, 2026

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Comment thread crates/prek/src/languages/coursier.rs Outdated

Comment thread crates/prek/src/languages/coursier.rs

Comment thread crates/prek/tests/languages/coursier.rs

Improve

5a6528a

Copilot AI review requested due to automatic review settings June 9, 2026 14:13

Copilot started reviewing on behalf of j178 June 9, 2026 14:13 View session

chatgpt-codex-connector Bot reviewed Jun 9, 2026

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Comment thread crates/prek/src/languages/coursier.rs

Copilot AI reviewed Jun 9, 2026

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Comment thread crates/prek/src/languages/coursier.rs

j178 merged commit 204b241 into master Jun 9, 2026
38 checks passed

j178 deleted the coursier branch June 9, 2026 14:34

j178 added a commit that referenced this pull request Jun 9, 2026

Add coursier language support (#2194)

667b3e1

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BrewTestBot mentioned this pull request Jun 15, 2026

prek 0.4.5 Homebrew/homebrew-core#288054

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j178 commented Jun 9, 2026

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Codecov Report

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📦 Cargo Bloat Comparison

Head Branch Results

Base Branch Results

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⚡️ Hyperfine Benchmarks

prek --version

prek list

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

prek sample-config

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

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

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

prek run trailing-whitespace --all-files

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

prek run check-json --all-files

prek run check-yaml --all-files

prek run check-toml --all-files

prek run check-xml --all-files

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

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

prek install-hooks (cold - no cache)

prek install-hooks (warm - with cache)

prek run (staged files only)

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

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

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

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

prek run identity --all-files

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Pull request overview

Reviewed changes

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codecov Bot commented Jun 9, 2026 •

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`prek --version`

`prek list`

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

`prek sample-config`

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

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

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

`prek run trailing-whitespace --all-files`

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

`prek run check-json --all-files`

`prek run check-yaml --all-files`

`prek run check-toml --all-files`

`prek run check-xml --all-files`

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

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

`prek install-hooks (cold - no cache)`

`prek install-hooks (warm - with cache)`

`prek run (staged files only)`

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

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

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

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

`prek run identity --all-files`