Linters¶

A linter is an analysis tool that checks for common errors or compatibility issues, usually automatically, or as part of some other process.

Snapcraft 7.2 and higher provides built-in linter functionality when the snap uses core22 or higher as its base.

By default, these built-in linters run automatically when a snap is built. If they’re unneeded, you can disable them in the snap’s snapcraft.yaml.

Built-in linters¶

Snapcraft runs the following linters:

classic. Verifies binary file parameters for snaps using classic confinement.
library. Verifies that no ELF file dependencies, such as libraries, are missing, and that no extra libraries are included in the snap package.

Disable a linter¶

You can disable a linter by adding it to the lint.ignore key in snapcraft.yaml. For example:

lint:
  ignore:
    - classic
    - library

Ignore specific files¶

To disable a linter for a specific file, you can list it under a linter’s entry in the lint.ignore key. The path is relative to the snap directory tree, and supports wildcard characters (*).

In the following example, the classic linter is disabled entirely, and the library linter won’t run for the files in usr/lib that match the specified pattern:

lint:
  ignore:
    - classic
    - library:
      - usr/lib/**/libfoo.so*