Merging upstream version 2.5.1.

Signed-off-by: Daniel Baumann <daniel@debian.org>

CHANGELOG.md

@@ -1,3 +1,70 @@
+2.5.1 - 2020-06-09
+==================
+
+### Fixes
+- Prevent infinite recursion of post-checkout on clone
+    - #1497 PR by @asottile.
+    - #1496 issue by @admorgan.
+
+2.5.0 - 2020-06-08
+==================
+
+### Features
+- Expose a `PRE_COMMIT=1` environment variable when running hooks
+    - #1467 PR by @tech-chad.
+    - #1426 issue by @lorenzwalthert.
+
+### Fixes
+- Fix `UnicodeDecodeError` on windows when using the `py` launcher to detect
+  executables with non-ascii characters in the path
+    - #1474 PR by @asottile.
+    - #1472 issue by DrFobos.
+- Fix `DeprecationWarning` on python3.9 for `random.shuffle` method
+    - #1480 PR by @asottile.
+    - #1479 issue by @isidentical.
+- Normalize slashes earlier such that global `files` / `exclude` use forward
+  slashes on windows as well.
+    - #1494 PR by @asottile.
+    - #1476 issue by @harrybiddle.
+
+2.4.0 - 2020-05-11
+==================
+
+### Features
+- Add support for `post-commit` hooks
+    - #1415 PR by @ModischFabrications.
+    - #1411 issue by @ModischFabrications.
+- Silence pip version warning in python installation error
+    - #1412 PR by @asottile.
+- Improve python `healthy()` when upgrading operating systems.
+    - #1431 PR by @asottile.
+    - #1427 issue by @ahonnecke.
+- `language: python_venv` is now an alias to `language: python` (and will be
+  removed in a future version).
+    - #1431 PR by @asottile.
+- Speed up python `healthy()` check.
+    - #1431 PR by @asottile.
+- `pre-commit autoupdate` now tries to maintain quoting style of `rev`.
+    - #1435 PR by @marcjay.
+    - #1434 issue by @marcjay.
+
+### Fixes
+- Fix installation of go modules in `repo: local`.
+    - #1428 PR by @scop.
+- Fix committing with unstaged files and a failing `post-checkout` hook.
+    - #1422 PR by @domodwyer.
+    - #1418 issue by @domodwyer.
+- Fix installation of node hooks with system node installed on freebsd.
+    - #1443 PR by @asottile.
+    - #1440 issue by @jockej.
+- Fix ruby hooks when `GEM_PATH` is set globally.
+    - #1442 PR by @tdeo.
+- Improve error message when `pre-commit autoupdate` /
+  `pre-commit migrate-config` are run but the pre-commit configuration is not
+  valid yaml.
+    - #1448 PR by @asottile.
+    - #1447 issue by @rpdelaney.
+
 2.3.0 - 2020-04-22
 ==================