Scrobble working!!! I mean, iTunes scrobble, not Last.FM (for now)

itunesbridge/script.go

@@ -0,0 +1,62 @@
+package itunesbridge
+
+import (
+	"fmt"
+	"io"
+	"os"
+	"os/exec"
+)
+
+type Script []string
+
+var CommandHost string
+
+func (s Script) lines() []string {
+	if len(s) == 0 {
+		panic("empty script")
+	}
+
+	lines := make([]string, 0, 2)
+	tell := `tell application "iTunes"`
+	if CommandHost != "" {
+		tell += fmt.Sprintf(` of machine %q`, CommandHost)
+	}
+	if len(s) == 1 {
+		tell += " to " + s[0]
+		lines = append(lines, tell)
+	} else {
+		lines = append(lines, tell)
+		lines = append(lines, s...)
+		lines = append(lines, "end tell")
+	}
+	return lines
+}
+
+func (s Script) args() []string {
+	var args []string
+	for _, line := range s.lines() {
+		args = append(args, "-e", line)
+	}
+	return args
+}
+
+func (s Script) Command(w io.Writer, args ...string) *exec.Cmd {
+	command := exec.Command("osascript", append(s.args(), args...)...)
+	command.Stdout = w
+	command.Stderr = os.Stderr
+	return command
+}
+
+func (s Script) Run(args ...string) error {
+	return s.Command(os.Stdout, args...).Run()
+}
+
+func (s Script) Output(args ...string) ([]byte, error) {
+	return s.Command(nil, args...).Output()
+}
+
+func (s Script) OutputString(args ...string) (string, error) {
+	p, err := s.Output(args...)
+	str := string(p)
+	return str, err
+}