Initial transfer of provider code

1 files changed, 94 insertions, 0 deletions

diff --git a/vendor/github.com/hashicorp/terraform/helper/schema/backend.go b/vendor/github.com/hashicorp/terraform/helper/schema/backend.go
new file mode 100644
index 0000000..a0729c0
--- /dev/null
+++ b/vendor/github.com/hashicorp/terraform/helper/schema/backend.go
@@ -0,0 +1,94 @@
+package schema
+
+import (
+        "context"
+
+        "github.com/hashicorp/terraform/terraform"
+)
+
+// Backend represents a partial backend.Backend implementation and simplifies
+// the creation of configuration loading and validation.
+//
+// Unlike other schema structs such as Provider, this struct is meant to be
+// embedded within your actual implementation. It provides implementations
+// only for Input and Configure and gives you a method for accessing the
+// configuration in the form of a ResourceData that you're expected to call
+// from the other implementation funcs.
+type Backend struct {
+        // Schema is the schema for the configuration of this backend. If this
+        // Backend has no configuration this can be omitted.
+        Schema map[string]*Schema
+
+        // ConfigureFunc is called to configure the backend. Use the
+        // FromContext* methods to extract information from the context.
+        // This can be nil, in which case nothing will be called but the
+        // config will still be stored.
+        ConfigureFunc func(context.Context) error
+
+        config *ResourceData
+}
+
+var (
+        backendConfigKey = contextKey("backend config")
+)
+
+// FromContextBackendConfig extracts a ResourceData with the configuration
+// from the context. This should only be called by Backend functions.
+func FromContextBackendConfig(ctx context.Context) *ResourceData {
+        return ctx.Value(backendConfigKey).(*ResourceData)
+}
+
+func (b *Backend) Input(
+        input terraform.UIInput,
+        c *terraform.ResourceConfig) (*terraform.ResourceConfig, error) {
+        if b == nil {
+                return c, nil
+        }
+
+        return schemaMap(b.Schema).Input(input, c)
+}
+
+func (b *Backend) Validate(c *terraform.ResourceConfig) ([]string, []error) {
+        if b == nil {
+                return nil, nil
+        }
+
+        return schemaMap(b.Schema).Validate(c)
+}
+
+func (b *Backend) Configure(c *terraform.ResourceConfig) error {
+        if b == nil {
+                return nil
+        }
+
+        sm := schemaMap(b.Schema)
+
+        // Get a ResourceData for this configuration. To do this, we actually
+        // generate an intermediary "diff" although that is never exposed.
+        diff, err := sm.Diff(nil, c)
+        if err != nil {
+                return err
+        }
+
+        data, err := sm.Data(nil, diff)
+        if err != nil {
+                return err
+        }
+        b.config = data
+
+        if b.ConfigureFunc != nil {
+                err = b.ConfigureFunc(context.WithValue(
+                        context.Background(), backendConfigKey, data))
+                if err != nil {
+                        return err
+                }
+        }
+
+        return nil
+}
+
+// Config returns the configuration. This is available after Configure is
+// called.
+func (b *Backend) Config() *ResourceData {
+        return b.config
+}