Detect CJK (Chinese, Japanese, and Korean) text in your repository.

• GitHub Action: fail the workflow when CJK text is detected
• CLI: scan files and exit with code 1 when CJK text is detected
• Library: functions to find CJK lines in strings

This action runs the nocjk CLI built from the same Git reference as the action itself, ensuring the action version and the CLI version always match.

jobs:
  check-cjk:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4
      - name: Detect CJK text
        uses: aethiopicuschan/nocjk@v1
        with:
          args: "."

• 0: No CJK text found (workflow succeeds)
• 1: CJK text detected (workflow fails)

You can define ignore rules using a .nocjkignore file in your project root. The format is fully compatible with .gitignore. Files and directories matching the patterns in this file will be skipped during CJK text detection.

go install github.com/aethiopicuschan/nocjk/cmd/nocjk@v1

nocjk .

When CJK text is detected, the CLI exits with error code 1.

• --ignore-chinese to ignore Chinese text
• --ignore-japanese to ignore Japanese text
• --ignore-korean to ignore Korean text

.nocjkignore is supported for skipping specific files and directories.

go get -u github.com/aethiopicuschan/nocjk/pkg/nocjk

See GoDoc for usage instructions.