fix commands for macOS and linux

com.unity.perception/Editor/Pyrception/PyrceptionInstaller.cs

 
 public class PyrceptionInstaller : EditorWindow
 {  
-
+    /// <summary>
+    /// Runs pyrception instance in default browser
+    /// </summary>
     [MenuItem("Window/Pyrception/Run")]
     static void RunPyrception()
     {
 
 #if UNITY_EDITOR_WIN
         command = $"cd {path}\\DataInsightsEnv\\Scripts\\ && activate && pyrception-utils.exe preview --data=\"{PlayerPrefs.GetString(SimulationState.latestOutputDirectoryKey)}/..\"";
-#elif UNITY_EDITOR_OSX
-        command = $"cd {path}/DataInsightsEnv/Scripts && activate && pyrception-utils preview --data=\"{PlayerPrefs.GetString(SimulationState.latestOutputDirectoryKey)}/..\"";
+#elif (UNITY_EDITOR_OSX || UNITY_EDITOR_LINUX)
+        command = $"cd {path}/DataInsightsEnv/Scripts; activate; pyrception-utils preview --data=\"{PlayerPrefs.GetString(SimulationState.latestOutputDirectoryKey)}/..\"";
+    /// <summary>
+    /// Install pyrception (Assumes python and pip are already installed)
+    /// - installs virtualenv if it is not already installed
+    /// - and setups a virtual environment for pyrception
+    /// </summary>
     [MenuItem("Window/Pyrception/Setup")]
     static void SetupPyrception()
     {
 #if UNITY_EDITOR_WIN
         path = path.Replace("/", "\\");
 #endif
-        string pyrceptionPath = Path.GetFullPath("Packages/com.unity.perception/Editor/Pyrception/pyrception-utils");
+        string pyrceptionPath = Path.GetFullPath("Packages/com.unity.perception/Editor/Pyrception/pyrception-utils").Replace("\\","/");
 
         EditorUtility.DisplayProgressBar("Setting up Pyrception", "Installing virtualenv...", 0 / steps);
         int ExitCode = 0;
 
 #if UNITY_EDITOR_WIN
         ExitCode = ExecuteCMD($"virtualenv \"{path}\\DataInsightsEnv\"");
-#elif UNITY_EDITOR_OSX
-        ExitCode = ExecuteCMD($"virtualenv \"{path}/DataInsightsEnv"");
+#elif (UNITY_EDITOR_OSX || UNITY_EDITOR_LINUX)
+        ExitCode = ExecuteCMD($"virtualenv \"{path}/DataInsightsEnv\"");
 #endif
         if (ExitCode != 0) return;
 
         ExitCode = ExecuteCMD($"XCOPY /E/I/Y \"{pyrceptionPath}\" \"{path}\\DataInsightsEnv\\pyrception-util\"");
-#elif UNITY_EDITOR_OSX
-        ExitCode = ExecuteCMD($"\cp -r \"{pyrceptionPath}\" \"{path}/DataInsightsEnv/pyrception-util\"");
+#elif (UNITY_EDITOR_OSX || UNITY_EDITOR_LINUX)
+        ExitCode = ExecuteCMD($"\\cp -r \"{pyrceptionPath}\" \"{path}/DataInsightsEnv/pyrception-util\"");
 #endif
         if (ExitCode != 0) return;
 
         ExitCode = ExecuteCMD($"\"{path}\\DataInsightsEnv\\Scripts\\activate\" && cd {path} && cd .\\DataInsightsEnv\\pyrception-util\\ && pip --no-cache-dir install -e . && deactivate");
-#elif UNITY_EDITOR_OSX
-        ExitCode = ExecuteCMD($"\"{path}/DataInsightsEnv/Scripts/activate\" && cd {path} && cd ./DataInsightsEnv/pyrception-util && pip --no-cache-dir install -e . && deactivate");
+#elif (UNITY_EDITOR_OSX || UNITY_EDITOR_LINUX)
+        ExitCode = ExecuteCMD($"\"{path}/DataInsightsEnv/Scripts/activate\"; cd \"{path}/DataInsightsEnv/pyrception-util\"; pip --no-cache-dir install -e .; deactivate");
 #endif
         if (ExitCode != 0) return;
 
+    /// <summary>
+    /// Executes command in cmd or console depending on system
+    /// </summary>
+    /// <param name="command">The command to execute</param>
+    /// <param name="waitForExit">Should it wait for exit before returning to the editor (i.e. is it not async?)</param>
+    /// <param name="displayWindow">Should the command window be displayed</param>
+    /// <returns></returns>
     private static int ExecuteCMD(string command, bool waitForExit = true, bool displayWindow = false) {
         string shell = "";
         string argument = "";
         argument = $"/c {command}";
-#elif UNITY_EDITOR_OSX
+#elif (UNITY_EDITOR_OSX || UNITY_EDITOR_LINUX)
         shell = "/bin/bash";
         argument = $"-c \"{command}\"";
 #endif