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1409f30f9c
This is part of a general effort to move all of Terraform's non-library package surface under internal in order to reinforce that these are for internal use within Terraform only. If you were previously importing packages under this prefix into an external codebase, you could pin to an earlier release tag as an interim solution until you've make a plan to achieve the same functionality some other way.
64 lines
2.4 KiB
Go
64 lines
2.4 KiB
Go
package providers
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// Factory is a function type that creates a new instance of a resource
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// provider, or returns an error if that is impossible.
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type Factory func() (Interface, error)
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// FactoryFixed is a helper that creates a Factory that just returns some given
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// single provider.
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//
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// Unlike usual factories, the exact same instance is returned for each call
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// to the factory and so this must be used in only specialized situations where
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// the caller can take care to either not mutate the given provider at all
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// or to mutate it in ways that will not cause unexpected behavior for others
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// holding the same reference.
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func FactoryFixed(p Interface) Factory {
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return func() (Interface, error) {
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return p, nil
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}
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}
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// ProviderHasResource is a helper that requests schema from the given provider
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// and checks if it has a resource type of the given name.
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//
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// This function is more expensive than it may first appear since it must
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// retrieve the entire schema from the underlying provider, and so it should
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// be used sparingly and especially not in tight loops.
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//
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// Since retrieving the provider may fail (e.g. if the provider is accessed
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// over an RPC channel that has operational problems), this function will
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// return false if the schema cannot be retrieved, under the assumption that
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// a subsequent call to do anything with the resource type would fail
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// anyway.
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func ProviderHasResource(provider Interface, typeName string) bool {
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resp := provider.GetProviderSchema()
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if resp.Diagnostics.HasErrors() {
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return false
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}
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_, exists := resp.ResourceTypes[typeName]
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return exists
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}
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// ProviderHasDataSource is a helper that requests schema from the given
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// provider and checks if it has a data source of the given name.
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//
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// This function is more expensive than it may first appear since it must
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// retrieve the entire schema from the underlying provider, and so it should
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// be used sparingly and especially not in tight loops.
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//
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// Since retrieving the provider may fail (e.g. if the provider is accessed
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// over an RPC channel that has operational problems), this function will
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// return false if the schema cannot be retrieved, under the assumption that
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// a subsequent call to do anything with the data source would fail
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// anyway.
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func ProviderHasDataSource(provider Interface, dataSourceName string) bool {
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resp := provider.GetProviderSchema()
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if resp.Diagnostics.HasErrors() {
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return false
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}
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_, exists := resp.DataSources[dataSourceName]
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return exists
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}
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