1 files changed, 117 insertions, 0 deletions

diff --git a/vendor/github.com/hashicorp/terraform/config/config_terraform.go b/vendor/github.com/hashicorp/terraform/config/config_terraform.go
new file mode 100644
index 0000000..8535c96
--- /dev/null
+++ b/vendor/github.com/hashicorp/terraform/config/config_terraform.go
@@ -0,0 +1,117 @@
+package config
+
+import (
+        "fmt"
+        "strings"
+
+        "github.com/hashicorp/go-version"
+        "github.com/mitchellh/hashstructure"
+)
+
+// Terraform is the Terraform meta-configuration that can be present
+// in configuration files for configuring Terraform itself.
+type Terraform struct {
+        RequiredVersion string   `hcl:"required_version"` // Required Terraform version (constraint)
+        Backend         *Backend // See Backend struct docs
+}
+
+// Validate performs the validation for just the Terraform configuration.
+func (t *Terraform) Validate() []error {
+        var errs []error
+
+        if raw := t.RequiredVersion; raw != "" {
+                // Check that the value has no interpolations
+                rc, err := NewRawConfig(map[string]interface{}{
+                        "root": raw,
+                })
+                if err != nil {
+                        errs = append(errs, fmt.Errorf(
+                                "terraform.required_version: %s", err))
+                } else if len(rc.Interpolations) > 0 {
+                        errs = append(errs, fmt.Errorf(
+                                "terraform.required_version: cannot contain interpolations"))
+                } else {
+                        // Check it is valid
+                        _, err := version.NewConstraint(raw)
+                        if err != nil {
+                                errs = append(errs, fmt.Errorf(
+                                        "terraform.required_version: invalid syntax: %s", err))
+                        }
+                }
+        }
+
+        if t.Backend != nil {
+                errs = append(errs, t.Backend.Validate()...)
+        }
+
+        return errs
+}
+
+// Merge t with t2.
+// Any conflicting fields are overwritten by t2.
+func (t *Terraform) Merge(t2 *Terraform) {
+        if t2.RequiredVersion != "" {
+                t.RequiredVersion = t2.RequiredVersion
+        }
+
+        if t2.Backend != nil {
+                t.Backend = t2.Backend
+        }
+}
+
+// Backend is the configuration for the "backend" to use with Terraform.
+// A backend is responsible for all major behavior of Terraform's core.
+// The abstraction layer above the core (the "backend") allows for behavior
+// such as remote operation.
+type Backend struct {
+        Type      string
+        RawConfig *RawConfig
+
+        // Hash is a unique hash code representing the original configuration
+        // of the backend. This won't be recomputed unless Rehash is called.
+        Hash uint64
+}
+
+// Rehash returns a unique content hash for this backend's configuration
+// as a uint64 value.
+func (b *Backend) Rehash() uint64 {
+        // If we have no backend, the value is zero
+        if b == nil {
+                return 0
+        }
+
+        // Use hashstructure to hash only our type with the config.
+        code, err := hashstructure.Hash(map[string]interface{}{
+                "type":   b.Type,
+                "config": b.RawConfig.Raw,
+        }, nil)
+
+        // This should never happen since we have just some basic primitives
+        // so panic if there is an error.
+        if err != nil {
+                panic(err)
+        }
+
+        return code
+}
+
+func (b *Backend) Validate() []error {
+        if len(b.RawConfig.Interpolations) > 0 {
+                return []error{fmt.Errorf(strings.TrimSpace(errBackendInterpolations))}
+        }
+
+        return nil
+}
+
+const errBackendInterpolations = `
+terraform.backend: configuration cannot contain interpolations
+
+The backend configuration is loaded by Terraform extremely early, before
+the core of Terraform can be initialized. This is necessary because the backend
+dictates the behavior of that core. The core is what handles interpolation
+processing. Because of this, interpolations cannot be used in backend
+configuration.
+
+If you'd like to parameterize backend configuration, we recommend using
+partial configuration with the "-backend-config" flag to "terraform init".
+`