Refactor for better modularity (share more code among edit functions, rename "offline" package to "backend"

src/backend/shear.go

@@ -0,0 +1,17 @@
+package backend
+
+import (
+	"fmt"
+	"os"
+)
+
+func Shear(targetLocation string) {
+	// TODO If in online mode, remove from server and add to shear list
+	TargetIsFile(targetLocation, true, 0) // needed because os.RemoveAll does not return an error if target does not exist
+	err := os.RemoveAll(targetLocation)
+	if err != nil {
+		fmt.Println(AnsiError + "Failed to remove target: " + err.Error() + AnsiReset)
+		os.Exit(1)
+	}
+	os.Exit(0)
+}