added sketch new command

Author: cmaglie

commands/sketch/new.go

@@ -0,0 +1,84 @@
+/*
+ * This file is part of arduino-cli.
+ *
+ * arduino-cli is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+ *
+ * As a special exception, you may use this file as part of a free software
+ * library without restriction.  Specifically, if other files instantiate
+ * templates or use macros or inline functions from this file, or you compile
+ * this file and link it with other files to produce an executable, this
+ * file does not by itself cause the resulting executable to be covered by
+ * the GNU General Public License.  This exception does not however
+ * invalidate any other reasons why the executable file might be covered by
+ * the GNU General Public License.
+ *
+ * Copyright 2017-2018 ARDUINO AG (http://www.arduino.cc/)
+ */
+
+package sketch
+
+import (
+	"io/ioutil"
+	"os"
+	"path/filepath"
+
+	"github.com/bcmi-labs/arduino-cli/commands"
+	"github.com/bcmi-labs/arduino-cli/common/formatter"
+	"github.com/bcmi-labs/arduino-cli/configs"
+	"github.com/spf13/cobra"
+)
+
+func init() {
+	command.AddCommand(newCommand)
+}
+
+var newCommand = &cobra.Command{
+	Use:     "new",
+	Short:   "Create a new Sketch",
+	Long:    "Create a new Sketch",
+	Example: "arduino sketch new MultiBlinker",
+	Args:    cobra.ExactArgs(1),
+	Run:     runNewCommand,
+}
+
+var emptySketch = []byte(`
+void setup() {
+}
+
+void loop() {
+}
+`)
+
+func runNewCommand(cmd *cobra.Command, args []string) {
+	sketchbook, err := configs.ArduinoHomeFolder.Get()
+	if err != nil {
+		formatter.PrintError(err, "Cannot get sketchbook folder.")
+		os.Exit(commands.ErrCoreConfig)
+	}
+
+	sketchDir := filepath.Join(sketchbook, args[0])
+	if err := os.Mkdir(sketchDir, 0755); err != nil {
+		formatter.PrintError(err, "Could not create sketch folder.")
+		os.Exit(commands.ErrGeneric)
+	}
+
+	sketchFile := filepath.Join(sketchDir, args[0]+".ino")
+	if err := ioutil.WriteFile(sketchFile, emptySketch, 0644); err != nil {
+		formatter.PrintError(err, "Error creating sketch.")
+		os.Exit(commands.ErrGeneric)
+	}
+
+	formatter.Print("Sketch created in: " + sketchDir)
+}