Merge pull request #85 from hashicorp/f-disco-win-executable

terraform/discovery: Find exe on Windows explicitly

internal/terraform/discovery/discovery.go

@@ -10,9 +10,9 @@ type DiscoveryFunc func() (string, error)
 type Discovery struct{}
 
 func (d *Discovery) LookPath() (string, error) {
-	path, err := exec.LookPath("terraform")
+	path, err := exec.LookPath(executableName)
 	if err != nil {
-		return "", fmt.Errorf("unable to find terraform: %s", err)
+		return "", fmt.Errorf("unable to find %s: %s", executableName, err)
 	}
 	return path, nil
 }

internal/terraform/discovery/discovery_unix.go

@@ -0,0 +1,5 @@
+// +build !windows
+
+package discovery
+
+const executableName = "terraform"

internal/terraform/discovery/discovery_windows.go

@@ -0,0 +1,3 @@
+package discovery
+
+const executableName = "terraform.exe"