Process-kill now terminate process group on MacOSX

Author: cmaglie

process_darwin.go

@@ -0,0 +1,62 @@
+//
+// This file is part of PathsHelper library.
+//
+// Copyright 2023 Arduino AG (http://www.arduino.cc/)
+//
+// PathsHelper library 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.
+//
+
+package paths
+
+import (
+	"os/exec"
+	"syscall"
+)
+
+func tellCommandNotToSpawnShell(_ *exec.Cmd) {
+	// no op
+}
+
+func tellCommandToStartOnNewProcessGroup(oscmd *exec.Cmd) {
+	// https://groups.google.com/g/golang-nuts/c/XoQ3RhFBJl8
+
+	// Start the process in a new process group.
+	// This is needed to kill the process and its children
+	// if we need to kill the process.
+	if oscmd.SysProcAttr == nil {
+		oscmd.SysProcAttr = &syscall.SysProcAttr{}
+	}
+	oscmd.SysProcAttr.Setpgid = true
+}
+
+func kill(oscmd *exec.Cmd) error {
+	// https://groups.google.com/g/golang-nuts/c/XoQ3RhFBJl8
+
+	// Kill the process group
+	pgid, err := syscall.Getpgid(oscmd.Process.Pid)
+	if err != nil {
+		return err
+	}
+	return syscall.Kill(-pgid, syscall.SIGKILL)
+}

process_others.go

@@ -27,7 +27,7 @@
 // the GNU General Public License.
 //
 
-//go:build !windows && !linux
+//go:build !windows && !linux && !darwin
 
 package paths