From a79d620f03f661127a80cc26d4472adc8e8c030e Mon Sep 17 00:00:00 2001
From: James Bardin <j.bardin@gmail.com>
Date: Tue, 20 Mar 2018 17:19:15 -0400
Subject: [PATCH] remove legacy remote state code

---
 backend/legacy/backend.go      | 75 ----------------------------------
 backend/legacy/backend_test.go | 50 -----------------------
 2 files changed, 125 deletions(-)
 delete mode 100644 backend/legacy/backend.go
 delete mode 100644 backend/legacy/backend_test.go

diff --git a/backend/legacy/backend.go b/backend/legacy/backend.go
deleted file mode 100644
index a8b0cad9fb..0000000000
--- a/backend/legacy/backend.go
+++ /dev/null
@@ -1,75 +0,0 @@
-package legacy
-
-import (
-	"fmt"
-
-	"github.com/hashicorp/terraform/backend"
-	"github.com/hashicorp/terraform/state"
-	"github.com/hashicorp/terraform/state/remote"
-	"github.com/hashicorp/terraform/terraform"
-	"github.com/mitchellh/mapstructure"
-)
-
-// Backend is an implementation of backend.Backend for legacy remote state
-// clients.
-type Backend struct {
-	// Type is the type of remote state client to support
-	Type string
-
-	// client is set after Configure is called and client is initialized.
-	client remote.Client
-}
-
-func (b *Backend) Input(
-	ui terraform.UIInput, c *terraform.ResourceConfig) (*terraform.ResourceConfig, error) {
-	// Return the config as-is, legacy doesn't support input
-	return c, nil
-}
-
-func (b *Backend) Validate(*terraform.ResourceConfig) ([]string, []error) {
-	// No validation was supported for old clients
-	return nil, nil
-}
-
-func (b *Backend) Configure(c *terraform.ResourceConfig) error {
-	// Legacy remote state was only map[string]string config
-	var conf map[string]string
-	if err := mapstructure.Decode(c.Raw, &conf); err != nil {
-		return fmt.Errorf(
-			"Failed to decode %q configuration: %s\n\n"+
-				"This backend expects all configuration keys and values to be\n"+
-				"strings. Please verify your configuration and try again.",
-			b.Type, err)
-	}
-
-	client, err := remote.NewClient(b.Type, conf)
-	if err != nil {
-		return fmt.Errorf(
-			"Failed to configure remote backend %q: %s",
-			b.Type, err)
-	}
-
-	// Set our client
-	b.client = client
-	return nil
-}
-
-func (b *Backend) State(name string) (state.State, error) {
-	if name != backend.DefaultStateName {
-		return nil, backend.ErrNamedStatesNotSupported
-	}
-
-	if b.client == nil {
-		panic("State called with nil remote state client")
-	}
-
-	return &remote.State{Client: b.client}, nil
-}
-
-func (b *Backend) States() ([]string, error) {
-	return nil, backend.ErrNamedStatesNotSupported
-}
-
-func (b *Backend) DeleteState(string) error {
-	return backend.ErrNamedStatesNotSupported
-}
diff --git a/backend/legacy/backend_test.go b/backend/legacy/backend_test.go
deleted file mode 100644
index 9eeb3a0c7f..0000000000
--- a/backend/legacy/backend_test.go
+++ /dev/null
@@ -1,50 +0,0 @@
-package legacy
-
-import (
-	"io/ioutil"
-	"os"
-	"path/filepath"
-	"testing"
-
-	"github.com/hashicorp/terraform/backend"
-	"github.com/hashicorp/terraform/config"
-	"github.com/hashicorp/terraform/state"
-	"github.com/hashicorp/terraform/terraform"
-)
-
-func TestBackend_impl(t *testing.T) {
-	var _ backend.Backend = new(Backend)
-}
-
-func TestBackend(t *testing.T) {
-	t.Skip()
-	td, err := ioutil.TempDir("", "tf")
-	if err != nil {
-		t.Fatalf("err: %s", err)
-	}
-	defer os.RemoveAll(td)
-
-	b := &Backend{Type: "local"}
-	conf := terraform.NewResourceConfig(config.TestRawConfig(t, map[string]interface{}{
-		"path": filepath.Join(td, "data"),
-	}))
-
-	// Config
-	if err := b.Configure(conf); err != nil {
-		t.Fatalf("err: %s", err)
-	}
-
-	// Grab state
-	s, err := b.State(backend.DefaultStateName)
-	if err != nil {
-		t.Fatalf("err: %s", err)
-	}
-	if s == nil {
-		t.Fatalf("state is nil")
-	}
-
-	// Test it
-	s.WriteState(state.TestStateInitial())
-	s.PersistState()
-	state.TestState(t, s)
-}