Precommit: Ktlint runs on unmodified files #787

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1. sds

   added

   bug

   help wanted

   on Aug 20, 2022
2. sds commented on Nov 10, 2026

   

   sds

   on Nov 10, 2026

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   I reproduced this with Ktlint 1.8.0 in a disposable repository. The cause is the hook name: the built-in hook is KtLint, with a capital L, while the report uses Ktlint.

   Use:

   PreCommit:
     KtLint:
       enabled: true
       problem_on_unmodified_line: report

   Ktlint plus required_executable: ktlint creates an ad hoc hook, which receives Git's original pre-commit arguments (no filenames). Ktlint then scans its default patterns and reports unchanged files. The built-in KtLint passes only applicable modified filenames.

   I verified a real commit fails on an unchanged invalid Bad.kt with the reported spelling, then succeeds with the same files after changing only Ktlint to KtLint. #927 documents the correction and strengthens the built-in argument test; it will close this issue after CI passes and the PR is merged.
3. sds

   added a commit that references this issue on Nov 10, 2026

   Document the case-sensitive KtLint hook name (#927)

   ...

   0b1e50e
4. sds

   closed this as completedin #927on Nov 10, 2026