add terminal module

Signed-off-by: Markus Blaschke <mblaschke82@gmail.com>

Author: mblaschke

terminal/print.go

@@ -0,0 +1,59 @@
+package terminal
+
+import (
+	"fmt"
+	"io"
+	"os"
+)
+
+// Println prints line on stdout
+func Println(msg string, args ...any) {
+	Fprintln(os.Stdout, msg, args...)
+}
+
+// Printf prints content on stdout
+func Printf(msg string, args ...any) {
+	Fprintf(os.Stdout, msg, args...)
+}
+
+// Fprintln prints line on writer
+func Fprintln(w io.Writer, msg string, args ...any) {
+	Sync()
+	if len(args) > 0 {
+		msg = fmt.Sprintf(msg, args...)
+	}
+
+	if _, err := fmt.Fprintln(w, msg); err != nil {
+		panic(err)
+	}
+
+	Sync()
+}
+
+// Fprintf writes content on writer
+func Fprintf(w io.Writer, msg string, args ...any) {
+	Sync()
+
+	if _, err := fmt.Fprintf(w, msg, args...); err != nil {
+		panic(err)
+	}
+
+	Sync()
+}
+
+// SyncBlock syncs stdout and stderr and calls callback in between sync calls
+func SyncBlock(callback func()) {
+	Sync()
+	callback()
+	Sync()
+}
+
+// Sync syncs terminal output and ensures logger has finished
+func Sync() {
+	if err := os.Stdout.Sync(); err != nil {
+		panic(err)
+	}
+	if err := os.Stderr.Sync(); err != nil {
+		panic(err)
+	}
+}