terraform/backend/legacy/legacy.go

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// Package legacy contains a backend implementation that can be used
// with the legacy remote state clients.
package legacy
import (
"github.com/hashicorp/terraform/backend"
"github.com/hashicorp/terraform/state/remote"
)
// Init updates the backend/init package map of initializers to support
// all the remote state types.
//
// If a type is already in the map, it will not be added. This will allow
// us to slowly convert the legacy types to first-class backends.
func Init(m map[string]backend.InitFn) {
for k := range remote.BuiltinClients {
if _, ok := m[k]; !ok {
// Copy the "k" value since the variable "k" is reused for
// each key (address doesn't change).
typ := k
// Build the factory function to return a backend of typ
m[k] = func() backend.Backend {
return &Backend{Type: typ}
}
}
}
}