feat: Add support for local cfn-lint executable#407
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satyakigh
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Jan 29, 2026
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If settings change while LSP is running, does the PyodideWorkerManager need to be shutdown?
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Description
Adds support for using a locally installed cfn-lint executable instead of the bundled Pyodide version. This provides users with the flexibility to use their own cfn-lint installation with custom configurations and faster execution times.
Changes
pathsetting toCfnLintSettingsto specify local cfn-lint executable pathLocalCfnLintExecutorclass to execute local cfn-lint via child processCfnLintServiceto switch between local executor and Pyodide worker based on path settinginitialized.localandinitialized.pyodide)Configuration
Users can configure the local cfn-lint path in their settings:
{ "aws.cloudformation.diagnostics.cfnLint.path": "/path/to/cfn-lint" }When
pathis empty or not set, the service falls back to the bundled Pyodide version.Testing
Related
This aligns with the AWS Toolkit setting:
aws.cloudformation.diagnostics.cfnLint.pathBy submitting this pull request, I confirm that you can use, modify, copy, and redistribute this contribution, under the terms of your choice.