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author | Flavio Castelli <fcastelli@suse.com> | 2017-05-03 11:37:08 +0200 |
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committer | Alvaro <alvaro.saurin@gmail.com> | 2017-05-03 11:40:31 +0200 |
commit | ee12004ab93e54f326896e9909ba9e6a2bd11e89 (patch) | |
tree | 1ea30d204b04425ebd1dadaf8cc991d572c7f0fb /vendor/github.com/hashicorp/terraform/config/config_terraform.go | |
parent | a286dc5494691c2b04c48ef6695ed0c902912c0f (diff) | |
download | terraform-provider-libvirt-ee12004ab93e54f326896e9909ba9e6a2bd11e89.tar terraform-provider-libvirt-ee12004ab93e54f326896e9909ba9e6a2bd11e89.tar.gz |
Vendor dependencies with vndr
This fixes issue #123
Diffstat (limited to 'vendor/github.com/hashicorp/terraform/config/config_terraform.go')
-rw-r--r-- | vendor/github.com/hashicorp/terraform/config/config_terraform.go | 117 |
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 00000000..8535c964 --- /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". +` |