Initial commit

vendor/github.com/hyperhq/hypercli/daemon/execdriver/termconsole.go

@@ -0,0 +1,55 @@
+package execdriver
+
+import (
+	"io"
+	"os/exec"
+)
+
+// StdConsole defines standard console operations for execdriver
+type StdConsole struct {
+	// Closers holds io.Closer references for closing at terminal close time
+	Closers []io.Closer
+}
+
+// NewStdConsole returns a new StdConsole struct
+func NewStdConsole(processConfig *ProcessConfig, pipes *Pipes) (*StdConsole, error) {
+	std := &StdConsole{}
+
+	if err := std.AttachPipes(&processConfig.Cmd, pipes); err != nil {
+		return nil, err
+	}
+	return std, nil
+}
+
+// AttachPipes attaches given pipes to exec.Cmd
+func (s *StdConsole) AttachPipes(command *exec.Cmd, pipes *Pipes) error {
+	command.Stdout = pipes.Stdout
+	command.Stderr = pipes.Stderr
+
+	if pipes.Stdin != nil {
+		stdin, err := command.StdinPipe()
+		if err != nil {
+			return err
+		}
+
+		go func() {
+			defer stdin.Close()
+			io.Copy(stdin, pipes.Stdin)
+		}()
+	}
+	return nil
+}
+
+// Resize implements Resize method of Terminal interface
+func (s *StdConsole) Resize(h, w int) error {
+	// we do not need to resize a non tty
+	return nil
+}
+
+// Close implements Close method of Terminal interface
+func (s *StdConsole) Close() error {
+	for _, c := range s.Closers {
+		c.Close()
+	}
+	return nil
+}