1 Commits (e024960c745f0a464cb081d04765d93f94deaba0)

Author	SHA1	Message	Date
Martin Atkins	e89b5390ca	moduledeps: new package for representing module dependencies ... As we add support for versioned providers, it's getting more complex to track the dependencies of each module and of the configuration as a whole, so this new package is intended to give us some room to model that nicely as a building block for the various aspects of dependency management. This package is not responsible for *building* the dependency data structure, since that requires knowledge of core Terraform and that would create cyclic package dependencies. A later change will add some logic in Terraform to create a Module tree based on the combination of a given configuration and state, returning an instance of this package's Module type. The Module.PluginRequirements method flattens the provider-oriented requirements into a set of plugin-oriented requirements (flattening any provider aliases) giving us what we need to work with the plugin/discovery package to find matching installed plugins. Other later uses of this package will include selecting plugin archives to auto-install from releases.hashicorp.com as part of "terraform init", where the module-oriented level of abstraction here should be useful for giving users good, specific feedback when constraints cannot be met. A "reason" is tracked for each provider dependency with the intent that this would later drive a UI for users to see and understand why a given dependency is present, to aid in debugging sticky issues with dependency resolution.	9 years ago