refactor cli.Interface yet again

- Only one global instance now, so we don't need to pass it around all
  the time.

- Allow to swap out the Command.Run implementation for unit tests.

- Can now use cli.Interface during func init() of packages importing
  pkg/cli.

1 files changed, 3 insertions, 3 deletions

diff --git a/pkg/cli/query.go b/pkg/cli/query.go
index ed9e913..d9aa9a2 100644
--- a/pkg/cli/query.go
+++ b/pkg/cli/query.go
@@ -41,7 +41,7 @@ func (e errInterrupted) Error() string {
 // TUI implementation for when stdin is a terminal
 
 type terminalTUI struct {
-	i *Interface
+	i *Implementation
 }
 
 func (t terminalTUI) ReadLine(prompt string) (string, error) {
@@ -78,7 +78,7 @@ type Choice struct {
 	Shortcut byte
 	//The display string that describes this choice.
 	Text string
-	//The string to return from Interface.Query().
+	//The string to return from Implementation.Query().
 	Return string
 }
 
@@ -228,7 +228,7 @@ func (b *buffer) getNextInput() []byte {
 // TUI implementation for when stdin is a pipe
 
 type pipeTUI struct {
-	i *Interface
+	i *Implementation
 }
 
 func (t *pipeTUI) ReadLine(prompt string) (string, error) {