tflint: Extend runner API for accessing the root provider configuration #79
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To cut out deep checking of AWS rules into a plugin, this PR extends runner API, adds
RootProvider
andEvalExprOnRootCtx
.In the ruleset plugin, an RPC server is assigned to each runner (module). If the target of the inspection is the root module, the provider configuration can be accessed, but the child module cannot access the provider configuration defined in the root.
To solve this problem, make use of the extended API to always have access to the root configuration.
See also terraform-linters/tflint#986