use the new version package

Update all references to the version values to use the new package.
The VersionString function was left in the terraform package
specifically for the aws provider, which is vendored. We can remove that
last call once the provider is updated.

command/push.go

@@ -12,7 +12,7 @@ import (
 	"github.com/hashicorp/atlas-go/v1"
 	"github.com/hashicorp/terraform/backend"
 	"github.com/hashicorp/terraform/config"
-	"github.com/hashicorp/terraform/terraform"
+	"github.com/hashicorp/terraform/version"
 )
 
 type PushCommand struct {
@@ -174,7 +174,7 @@ func (c *PushCommand) Run(args []string) int {
 			}
 		}
 
-		client.DefaultHeader.Set(terraform.VersionHeader, terraform.Version)
+		client.DefaultHeader.Set(version.Header, version.Version)
 
 		if atlasToken != "" {
 			client.Token = atlasToken

command/refresh_test.go

@@ -12,6 +12,7 @@ import (
 	"github.com/hashicorp/terraform/helper/copy"
 	"github.com/hashicorp/terraform/state"
 	"github.com/hashicorp/terraform/terraform"
+	"github.com/hashicorp/terraform/version"
 	"github.com/mitchellh/cli"
 )
 
@@ -353,7 +354,7 @@ func TestRefresh_pastState(t *testing.T) {
 		t.Fatalf("bad:\n\n%s", actual)
 	}
 
-	if newState.TFVersion != terraform.Version {
+	if newState.TFVersion != version.Version {
 		t.Fatalf("bad:\n\n%s", newState.TFVersion)
 	}
 }

state/remote/gcs.go

@@ -12,13 +12,14 @@ import (
 	"strings"
 
 	"github.com/hashicorp/terraform/helper/pathorcontents"
-	"github.com/hashicorp/terraform/terraform"
 	"golang.org/x/net/context"
 	"golang.org/x/oauth2"
 	"golang.org/x/oauth2/google"
 	"golang.org/x/oauth2/jwt"
 	"google.golang.org/api/googleapi"
 	"google.golang.org/api/storage/v1"
+
+	version "github.com/hashicorp/terraform/version"
 )
 
 // accountFile represents the structure of the credentials JSON
@@ -99,7 +100,7 @@ func gcsFactory(conf map[string]string) (Client, error) {
 			return nil, err
 		}
 	}
-	versionString := terraform.Version
+	versionString := version.Version
 	userAgent := fmt.Sprintf(
 		"(%s %s) Terraform/%s", runtime.GOOS, runtime.GOARCH, versionString)
 

state/state.go

@@ -15,6 +15,7 @@ import (
 
 	uuid "github.com/hashicorp/go-uuid"
 	"github.com/hashicorp/terraform/terraform"
+	"github.com/hashicorp/terraform/version"
 )
 
 var rngSource *rand.Rand
@@ -158,7 +159,7 @@ func NewLockInfo() *LockInfo {
 	info := &LockInfo{
 		ID:      id,
 		Who:     fmt.Sprintf("%s@%s", userName, host),
-		Version: terraform.Version,
+		Version: version.Version,
 		Created: time.Now().UTC(),
 	}
 	return info

svchost/disco/disco.go

@@ -20,7 +20,7 @@ import (
 	cleanhttp "github.com/hashicorp/go-cleanhttp"
 	"github.com/hashicorp/terraform/svchost"
 	"github.com/hashicorp/terraform/svchost/auth"
-	"github.com/hashicorp/terraform/terraform"
+	"github.com/hashicorp/terraform/version"
 )
 
 const (
@@ -30,7 +30,7 @@ const (
 	maxDiscoDocBytes = 1 * 1024 * 1024 // 1MB - to prevent abusive services from using loads of our memory
 )
 
-var userAgent = fmt.Sprintf("Terraform/%s (service discovery)", terraform.VersionString())
+var userAgent = fmt.Sprintf("Terraform/%s (service discovery)", version.String())
 var httpTransport = cleanhttp.DefaultPooledTransport() // overridden during tests, to skip TLS verification
 
 // Disco is the main type in this package, which allows discovery on given

terraform/context.go

@@ -12,6 +12,7 @@ import (
 	"github.com/hashicorp/hcl"
 	"github.com/hashicorp/terraform/config"
 	"github.com/hashicorp/terraform/config/module"
+	"github.com/hashicorp/terraform/version"
 )
 
 // InputMode defines what sort of input will be asked for when Input
@@ -154,7 +155,7 @@ func NewContext(opts *ContextOpts) (*Context, error) {
 	// Explicitly reset our state version to our current version so that
 	// any operations we do will write out that our latest version
 	// has run.
-	state.TFVersion = Version
+	state.TFVersion = version.Version
 
 	// Determine parallelism, default to 10. We do this both to limit
 	// CPU pressure but also to have an extra guard against rate throttling
@@ -532,7 +533,7 @@ func (c *Context) Plan() (*Plan, error) {
 		State:   c.state,
 		Targets: c.targets,
 
-		TerraformVersion: VersionString(),
+		TerraformVersion: version.String(),
 		ProviderSHA256s:  c.providerSHA256s,
 	}
 

terraform/context_test.go

@@ -8,6 +8,7 @@ import (
 
 	"github.com/hashicorp/go-version"
 	"github.com/hashicorp/terraform/flatmap"
+	tfversion "github.com/hashicorp/terraform/version"
 )
 
 func TestNewContextRequiredVersion(t *testing.T) {
@@ -62,9 +63,9 @@ func TestNewContextRequiredVersion(t *testing.T) {
 	for i, tc := range cases {
 		t.Run(fmt.Sprintf("%d-%s", i, tc.Name), func(t *testing.T) {
 			// Reset the version for the tests
-			old := SemVersion
+			old := tfversion.SemVer
-			SemVersion = version.Must(version.NewVersion(tc.Version))
+			tfversion.SemVer = version.Must(version.NewVersion(tc.Version))
-			defer func() { SemVersion = old }()
+			defer func() { tfversion.SemVer = old }()
 
 			name := "context-required-version"
 			if tc.Module != "" {
@@ -108,7 +109,7 @@ func TestNewContextState(t *testing.T) {
 
 		"equal TFVersion": {
 			&ContextOpts{
-				State: &State{TFVersion: Version},
+				State: &State{TFVersion: tfversion.Version},
 			},
 			false,
 		},
@@ -139,7 +140,7 @@ func TestNewContextState(t *testing.T) {
 		}
 
 		// Version should always be set to our current
-		if ctx.state.TFVersion != Version {
+		if ctx.state.TFVersion != tfversion.Version {
 			t.Fatalf("%s: state not set to current version", k)
 		}
 	}

terraform/eval_diff.go

@@ -6,6 +6,7 @@ import (
 	"strings"
 
 	"github.com/hashicorp/terraform/config"
+	"github.com/hashicorp/terraform/version"
 )
 
 // EvalCompareDiff is an EvalNode implementation that compares two diffs
@@ -60,7 +61,7 @@ func (n *EvalCompareDiff) Eval(ctx EvalContext) (interface{}, error) {
 				"\n"+
 				"Also include as much context as you can about your config, state, "+
 				"and the steps you performed to trigger this error.\n",
-			n.Info.Id, Version, n.Info.Id, reason, one, two)
+			n.Info.Id, version.Version, n.Info.Id, reason, one, two)
 	}
 
 	return nil, nil

terraform/plan.go

@@ -10,6 +10,7 @@ import (
 	"sync"
 
 	"github.com/hashicorp/terraform/config/module"
+	"github.com/hashicorp/terraform/version"
 )
 
 func init() {
@@ -119,7 +120,7 @@ func (p *Plan) contextOpts(base *ContextOpts) (*ContextOpts, error) {
 		log.Println("[WARNING] Plan state and ContextOpts state are not equal")
 	}
 
-	thisVersion := VersionString()
+	thisVersion := version.String()
 	if p.TerraformVersion != "" && p.TerraformVersion != thisVersion {
 		return nil, fmt.Errorf(
 			"plan was created with a different version of Terraform (created with %s, but running %s)",

terraform/state.go

@@ -20,6 +20,8 @@ import (
 	"github.com/hashicorp/terraform/config"
 	"github.com/mitchellh/copystructure"
 	"github.com/satori/go.uuid"
+
+	tfversion "github.com/hashicorp/terraform/version"
 )
 
 const (
@@ -664,7 +666,7 @@ func (s *State) FromFutureTerraform() bool {
 	}
 
 	v := version.Must(version.NewVersion(s.TFVersion))
-	return SemVersion.LessThan(v)
+	return tfversion.SemVer.LessThan(v)
 }
 
 func (s *State) Init() {
@@ -1908,7 +1910,7 @@ func ReadState(src io.Reader) (*State, error) {
 		result = v3State
 	default:
 		return nil, fmt.Errorf("Terraform %s does not support state version %d, please update.",
-			SemVersion.String(), versionIdentifier.Version)
+			tfversion.SemVer.String(), versionIdentifier.Version)
 	}
 
 	// If we reached this place we must have a result set
@@ -1952,7 +1954,7 @@ func ReadStateV2(jsonBytes []byte) (*State, error) {
 	// version that we don't understand
 	if state.Version > StateVersion {
 		return nil, fmt.Errorf("Terraform %s does not support state version %d, please update.",
-			SemVersion.String(), state.Version)
+			tfversion.SemVer.String(), state.Version)
 	}
 
 	// Make sure the version is semantic
@@ -1987,7 +1989,7 @@ func ReadStateV3(jsonBytes []byte) (*State, error) {
 	// version that we don't understand
 	if state.Version > StateVersion {
 		return nil, fmt.Errorf("Terraform %s does not support state version %d, please update.",
-			SemVersion.String(), state.Version)
+			tfversion.SemVer.String(), state.Version)
 	}
 
 	// Make sure the version is semantic

terraform/user_agent.go

@@ -3,6 +3,8 @@ package terraform
 import (
 	"fmt"
 	"runtime"
+
+	"github.com/hashicorp/terraform/version"
 )
 
 // The standard Terraform User-Agent format
@@ -10,5 +12,5 @@ const UserAgent = "Terraform %s (%s)"
 
 // Generate a UserAgent string
 func UserAgentString() string {
-	return fmt.Sprintf(UserAgent, VersionString(), runtime.Version())
+	return fmt.Sprintf(UserAgent, version.String(), runtime.Version())
 }

terraform/version.go

@@ -1,31 +1,10 @@
 package terraform
 
 import (
-	"fmt"
+	"github.com/hashicorp/terraform/version"
-
-	"github.com/hashicorp/go-version"
 )
 
-// The main version number that is being run at the moment.
+// TODO: update providers to use the version package directly
-const Version = "0.10.8"
-
-// A pre-release marker for the version. If this is "" (empty string)
-// then it means that it is a final release. Otherwise, this is a pre-release
-// such as "dev" (in development), "beta", "rc1", etc.
-var VersionPrerelease = "dev"
-
-// SemVersion is an instance of version.Version. This has the secondary
-// benefit of verifying during tests and init time that our version is a
-// proper semantic version, which should always be the case.
-var SemVersion = version.Must(version.NewVersion(Version))
-
-// VersionHeader is the header name used to send the current terraform version
-// in http requests.
-const VersionHeader = "Terraform-Version"
-
 func VersionString() string {
-	if VersionPrerelease != "" {
+	return version.String()
-		return fmt.Sprintf("%s-%s", Version, VersionPrerelease)
-	}
-	return Version
 }

terraform/version_required.go

@@ -6,6 +6,8 @@ import (
 	"github.com/hashicorp/go-version"
 	"github.com/hashicorp/terraform/config"
 	"github.com/hashicorp/terraform/config/module"
+
+	tfversion "github.com/hashicorp/terraform/version"
 )
 
 // CheckRequiredVersion verifies that any version requirements specified by
@@ -49,7 +51,7 @@ func CheckRequiredVersion(m *module.Tree) error {
 			tf.RequiredVersion, err)
 	}
 
-	if !cs.Check(SemVersion) {
+	if !cs.Check(tfversion.SemVer) {
 		return fmt.Errorf(
 			"The currently running version of Terraform doesn't meet the\n"+
 				"version requirements explicitly specified by the configuration.\n"+
@@ -62,7 +64,7 @@ func CheckRequiredVersion(m *module.Tree) error {
 				"  Current version: %s",
 			module,
 			tf.RequiredVersion,
-			SemVersion)
+			tfversion.SemVer)
 	}
 
 	return nil

version.go

@@ -1,10 +1,12 @@
 package main
 
-import "github.com/hashicorp/terraform/terraform"
+import (
+	"github.com/hashicorp/terraform/version"
+)
 
 // The git commit that was compiled. This will be filled in by the compiler.
 var GitCommit string
 
-const Version = terraform.Version
+const Version = version.Version
 
-var VersionPrerelease = terraform.VersionPrerelease
+var VersionPrerelease = version.Prerelease

version/version.go

@@ -18,10 +18,10 @@ const Version = "0.10.8"
 // such as "dev" (in development), "beta", "rc1", etc.
 var Prerelease = "dev"
 
-// SemVersion is an instance of version.Version. This has the secondary
+// SemVer is an instance of version.Version. This has the secondary
 // benefit of verifying during tests and init time that our version is a
 // proper semantic version, which should always be the case.
-var SemVersion = version.Must(version.NewVersion(Version))
+var SemVer = version.Must(version.NewVersion(Version))
 
 // Header is the header name used to send the current terraform version
 // in http requests.
@@ -29,8 +29,8 @@ const Header = "Terraform-Version"
 
 // String returns the complete version string, including prerelease
 func String() string {
-	if prerelase != "" {
+	if Prerelease != "" {
-		return fmt.Sprintf("%s-%s", version, prerelease)
+		return fmt.Sprintf("%s-%s", Version, Prerelease)
 	}
-	return version
+	return Version
 }