[vpython] Incorporate interpreter path/hash.

vpython/api/vpython/env.pb.go

Index: vpython/api/vpython/env.pb.go
diff --git a/vpython/api/vpython/env.pb.go b/vpython/api/vpython/env.pb.go
index c5e98e0ff82dd913636d7864f5a2fa3472d3958d..57341b90a575ab74a02701dbd15591f9175f74a8 100644
--- a/vpython/api/vpython/env.pb.go
+++ b/vpython/api/vpython/env.pb.go
@@ -12,6 +12,7 @@ It is generated from these files:
 
 It has these top-level messages:
 	Environment
+	Runtime
 	Pep425Tag
 	Spec
 */
@@ -36,8 +37,10 @@ const _ = proto.ProtoPackageIsVersion2 // please upgrade the proto package
 type Environment struct {
 	// A constructed VirtualEnv.
 	Spec *Spec `protobuf:"bytes,1,opt,name=spec" json:"spec,omitempty"`
+	// The resolved runtime parameters.
+	Runtime *Runtime `protobuf:"bytes,2,opt,name=runtime" json:"runtime,omitempty"`
 	// The PEP425 tags that were probed for this Python environment.
-	Pep425Tag []*Pep425Tag `protobuf:"bytes,2,rep,name=pep425_tag,json=pep425Tag" json:"pep425_tag,omitempty"`
+	Pep425Tag []*Pep425Tag `protobuf:"bytes,3,rep,name=pep425_tag,json=pep425Tag" json:"pep425_tag,omitempty"`
 }
 
 func (m *Environment) Reset()                    { *m = Environment{} }
@@ -52,6 +55,13 @@ func (m *Environment) GetSpec() *Spec {
 	return nil
 }
 
+func (m *Environment) GetRuntime() *Runtime {
+	if m != nil {
+		return m.Runtime
+	}
+	return nil
+}
+
 func (m *Environment) GetPep425Tag() []*Pep425Tag {
 	if m != nil {
 		return m.Pep425Tag
@@ -59,8 +69,45 @@ func (m *Environment) GetPep425Tag() []*Pep425Tag {
 	return nil
 }
 
+// Runtime is the set of resolved runtime parameters.
+type Runtime struct {
+	// The absolute path to the resolved interpreter.
+	Path string `protobuf:"bytes,1,opt,name=path" json:"path,omitempty"`
+	// The SHA256 hash of the resolved interpreter.
+	Hash string `protobuf:"bytes,2,opt,name=hash" json:"hash,omitempty"`
+	// The resolved Python interpreter version.
+	Version string `protobuf:"bytes,3,opt,name=version" json:"version,omitempty"`
+}
+
+func (m *Runtime) Reset()                    { *m = Runtime{} }
+func (m *Runtime) String() string            { return proto.CompactTextString(m) }
+func (*Runtime) ProtoMessage()               {}
+func (*Runtime) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{1} }
+
+func (m *Runtime) GetPath() string {
+	if m != nil {
+		return m.Path
+	}
+	return ""
+}
+
+func (m *Runtime) GetHash() string {
+	if m != nil {
+		return m.Hash
+	}
+	return ""
+}
+
+func (m *Runtime) GetVersion() string {
+	if m != nil {
+		return m.Version
+	}
+	return ""
+}
+
 func init() {
 	proto.RegisterType((*Environment)(nil), "vpython.Environment")
+	proto.RegisterType((*Runtime)(nil), "vpython.Runtime")
 }
 
 func init() {
@@ -68,16 +115,20 @@ func init() {
 }
 
 var fileDescriptor0 = []byte{
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+	// 239 bytes of a gzipped FileDescriptorProto
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