Add our own copy.exe binary so that we can copy without cmd.exe

arduino101load/arduino101copy.go

@@ -0,0 +1,44 @@
+package main
+
+import (
+    "io"
+    "log"
+    "os"
+    "fmt"
+)
+
+func main() {
+    args := os.Args[1:]
+
+    // Make sure there are only two arguments
+    if len(args) != 2 {
+        log.Fatalf("%s <source> <destination>", os.Args[0])
+    }
+
+    source_path := args[0]
+    destination_path := args[1]
+
+    // Make sure the source file exists
+    source_file, err := os.Open(source_path)
+    exit_if_error(err)
+    defer source_file.Close()
+
+    // Make sure we can create the destination file
+    destination_file, err := os.Create(destination_path)
+    exit_if_error(err)
+    defer destination_file.Close()
+
+    // Copy
+    _, err = io.Copy(destination_file, source_file)
+    exit_if_error(err)
+
+    // Report
+    fmt.Printf("Copied %s to %s\n", source_path, destination_path)
+}
+
+func exit_if_error(err error) {
+    if err != nil {
+        log.Fatal("ERROR:", err)
+    }
+}
+