feature: supports JetBrains Rider (#77)

README.md

@@ -62,9 +62,10 @@ This app supports open repository in external tools listed in the table below.
 | Visual Studio Code | YES | YES | YES | VSCODE_PATH |
 | Visual Studio Code - Insiders | YES | YES | YES | VSCODE_INSIDERS_PATH |
 | JetBrains Fleet | YES | YES | YES | FLEET_PATH |
+| JetBrains Rider | YES | YES | YES | RIDER_PATH |
 | Sublime Text | YES | YES | YES | SUBLIME_TEXT_PATH |
 
-You can set the given environment variable for special tool if it can NOT be found by this app automatically. 
+> You can set the given environment variable for special tool if it can NOT be found by this app automatically. 
 
 ## Screenshots
 

src/Models/ExternalTool.cs

@@ -59,6 +59,11 @@ namespace SourceGit.Models
             TryAdd("JetBrains Fleet", "fleet", "\"{0}\"", "FLEET_PATH", platform_finder);
         }
 
+        public void Rider(Func<string> platform_finder)
+        {
+            TryAdd("JetBrains Rider", "rider", "\"{0}\"", "RIDER_PATH", platform_finder);
+        }
+
         public void SublimeText(Func<string> platform_finder)
         {
             TryAdd("Sublime Text", "sublime_text", "\"{0}\"", "SUBLIME_TEXT_PATH", platform_finder);

src/Native/Linux.cs

@@ -58,6 +58,7 @@ namespace SourceGit.Native
             finder.VSCode(() => FindExecutable("code"));
             finder.VSCodeInsiders(() => FindExecutable("code-insiders"));
             finder.Fleet(FindJetBrainFleet);
+            finder.Rider(() => string.Empty);
             finder.SublimeText(() => FindExecutable("subl"));
             return finder.Founded;
         }

src/Native/MacOS.cs

@@ -33,6 +33,7 @@ namespace SourceGit.Native
             finder.VSCode(() => "/Applications/Visual Studio Code.app/Contents/Resources/app/bin/code");
             finder.VSCodeInsiders(() => "/Applications/Visual Studio Code - Insiders.app/Contents/Resources/app/bin/code");
             finder.Fleet(() => $"{Environment.GetFolderPath(Environment.SpecialFolder.UserProfile)}/Applications/Fleet.app/Contents/MacOS/Fleet");
+            finder.Rider(() => string.Empty);
             finder.SublimeText(() => "/Applications/Sublime Text.app/Contents/SharedSupport/bin/subl");
             return finder.Founded;
         }

src/Native/Windows.cs

@@ -111,6 +111,7 @@ namespace SourceGit.Native
             finder.VSCode(FindVSCode);
             finder.VSCodeInsiders(FindVSCodeInsiders);
             finder.Fleet(() => $"{Environment.GetFolderPath(Environment.SpecialFolder.LocalApplicationData)}\\Programs\\Fleet\\Fleet.exe");
+            finder.Rider(FindRider);
             finder.SublimeText(FindSublimeText);
             return finder.Founded;
         }
@@ -322,6 +323,22 @@ namespace SourceGit.Native
             return string.Empty;
         }
 
+        private string FindRider()
+        {
+            var rider = Environment.GetEnvironmentVariable("JetBrains Rider");
+            if (!string.IsNullOrEmpty(rider))
+            {
+                rider = rider.TrimEnd(';', ' ');
+                var path = Path.Combine(rider, "rider64.exe");
+                if (File.Exists(path))
+                {
+                    return path;
+                }
+            }
+
+            return string.Empty;
+        }
+
         private string FindSublimeText()
         {
             var localMachine = Microsoft.Win32.RegistryKey.OpenBaseKey(