1 files changed, 16 insertions, 0 deletions
diff --git a/go/src/lib/pipeline/cmd.go b/go/src/lib/pipeline/cmd.go
new file mode 100644
index 0000000..563becf
--- /dev/null
+++ b/go/src/lib/pipeline/cmd.go
@@ -0,0 +1,16 @@
+package pipeline
+
+import (
+	"io"
+)
+
+type Cmd interface {
+	CombinedOutput() ([]byte, error)
+	Output() ([]byte, error)
+	Run() error
+	Start() error
+	StderrPipe() (io.ReadCloser, error)
+	StdinPipe() (io.WriteCloser, error)
+	StdoutPipe() (io.ReadCloser, error)
+	Wait() error
+}