From 922bf5a0f0c45ca0d0b37e570926e8fb95fdcdcf Mon Sep 17 00:00:00 2001
From: Gabriel Dugny <git@dugny.me>
Date: Tue, 27 Jan 2026 21:51:28 +0100
Subject: [PATCH 1/2] chore: support prek

---
 README.md                            |  2 ++
 tests/test_pre_commit_config_file.py | 43 ++++++++++++++++++++++++++++
 tox.ini                              |  4 +--
 3 files changed, 47 insertions(+), 2 deletions(-)

diff --git a/README.md b/README.md
index d7ff74e..5bb07ec 100644
--- a/README.md
+++ b/README.md
@@ -19,6 +19,7 @@ PDM and Poetry plugin to sync your pre-commit versions with your lockfile and au
 - ⏩ Run every time you run the lockfile is updated, not as a pre-commit hook
 - 🔄 Install pre-commit hooks automatically, no need to run `pre-commit install` manually
 - 💫 Preserve your pre-commit config file formatting
+- ✨ Support [prek](https://prek.j178.dev/) configuration files (preserve `prek` specific keys)
 - 🍃 Lightweight, only depends on [strictyaml](https://pypi.org/project/strictyaml/) and [packaging](https://pypi.org/project/packaging/)
 
 ## Supported versions
@@ -87,6 +88,7 @@ disable-sync-from-lock = false
 # Packages to ignore when syncing from lock
 ignore = []
 # Name of the pre-commit config file to sync with
+# Can be set to ".pre-commit-config.yml" to support prek alternate config file
 pre-commit-config-file = ".pre-commit-config.yaml"
 # Additional mapping of URLs to python packages
 # Default is empty, but will merge with the default mapping
diff --git a/tests/test_pre_commit_config_file.py b/tests/test_pre_commit_config_file.py
index a4d59bf..50fd877 100644
--- a/tests/test_pre_commit_config_file.py
+++ b/tests/test_pre_commit_config_file.py
@@ -190,3 +190,46 @@ def test_update_additional_dependencies_versions(base: str) -> None:
 def test_precommit_repo_equality(repo1: PreCommitRepo, repo2: PreCommitRepo, equal: bool):
     assert (repo1 == repo2) is equal
     assert (hash(repo1) == hash(repo2)) is equal
+
+
+def test_prek_config_support() -> None:
+    # A config file with prek-specific keys
+    file_content = """\
+minimum_prek_version: "0.1.0"
+orphan: true
+repos:
+  - repo: https://github.com/psf/black
+    rev: 23.3.0
+    hooks:
+      - id: black
+        priority: 10
+        env:
+            FOO: bar
+"""
+    mock_path = MagicMock(spec=Path)
+    mock_path.open = mock_open(read_data=file_content)
+
+    config = PreCommitHookConfig.from_yaml_file(mock_path)
+
+    updated_repo = PreCommitRepo(
+        "https://github.com/psf/black",
+        "23.4.0",
+        [PreCommitHook("black")],
+    )
+
+    mock_path.open = mock_open()
+    config.update_pre_commit_repo_versions({config.repos[0]: updated_repo})
+
+    expected_content = """\
+minimum_prek_version: "0.1.0"
+orphan: true
+repos:
+  - repo: https://github.com/psf/black
+    rev: 23.4.0
+    hooks:
+      - id: black
+        priority: 10
+        env:
+            FOO: bar
+"""
+    mock_path.open().writelines.assert_called_once_with(expected_content.splitlines(keepends=True))
diff --git a/tox.ini b/tox.ini
index e9b6a24..d7e0753 100644
--- a/tox.ini
+++ b/tox.ini
@@ -77,7 +77,7 @@ deps =
     pdm27: pdm<2.8,>=2.7
     pdm28: pdm<2.9,>=2.8
     pdm29: pdm<2.10,>=2.9
-    pdmHEAD: pdm@ git+https://github.com/pdm-project/pdm.git
+    pdmHEAD: pdm @ git+https://github.com/pdm-project/pdm.git
 
 [testenv:py{314,313,312, 311, 310}-poetry{16, 17, 18, 20, 21, 22, 23,HEAD}]
 package = editable
@@ -90,7 +90,7 @@ deps =
     poetry21: poetry<2.2,>=2.1
     poetry22: poetry<2.3,>=2.2
     poetry23: poetry<2.4,>=2.3
-    poetryHEAD: poetry@ git+https://github.com/python-poetry/poetry.git
+    poetryHEAD: poetry @ git+https://github.com/python-poetry/poetry.git
 
 [gh]
 python =

From 5ead1fc2c09bfb7a2cc526a284de2efaed57be81 Mon Sep 17 00:00:00 2001
From: "pre-commit-ci[bot]"
 <66853113+pre-commit-ci[bot]@users.noreply.github.com>
Date: Sat, 7 Feb 2026 12:12:09 +0000
Subject: [PATCH 2/2] [pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci
---
 tox.ini | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/tox.ini b/tox.ini
index d7e0753..e9b6a24 100644
--- a/tox.ini
+++ b/tox.ini
@@ -77,7 +77,7 @@ deps =
     pdm27: pdm<2.8,>=2.7
     pdm28: pdm<2.9,>=2.8
     pdm29: pdm<2.10,>=2.9
-    pdmHEAD: pdm @ git+https://github.com/pdm-project/pdm.git
+    pdmHEAD: pdm@ git+https://github.com/pdm-project/pdm.git
 
 [testenv:py{314,313,312, 311, 310}-poetry{16, 17, 18, 20, 21, 22, 23,HEAD}]
 package = editable
@@ -90,7 +90,7 @@ deps =
     poetry21: poetry<2.2,>=2.1
     poetry22: poetry<2.3,>=2.2
     poetry23: poetry<2.4,>=2.3
-    poetryHEAD: poetry @ git+https://github.com/python-poetry/poetry.git
+    poetryHEAD: poetry@ git+https://github.com/python-poetry/poetry.git
 
 [gh]
 python =