Threw FileNotFoundException when file could not be retrieved from PowerShell to match previous error handling. Removed artificial limitation on Uri schemes.

Author: dkattan

src/PowerShellEditorServices/Services/Workspace/WorkspaceService.cs

@@ -205,20 +205,6 @@ public async Task<ScriptFile> GetFile(DocumentUri documentUri)
         public async Task<ScriptFile?> TryGetFile(DocumentUri documentUri)
         {
             ScriptFile? scriptFile;
-            switch (documentUri.Scheme)
-            {
-                // List supported schemes here
-                case "file":
-                case "inmemory":
-                case "untitled":
-                case "vscode-notebook-cell":
-                    break;
-
-                default:
-                    scriptFile = null;
-                    return scriptFile;
-            }
-
             try
             {
                 scriptFile = await GetFile(documentUri).ConfigureAwait(false);
@@ -233,7 +219,7 @@ IOException or
                 SecurityException or
                 UnauthorizedAccessException)
             {
-                logger.LogWarning($"Failed to get file for fileUri: '{documentUri}'", e);
+                logger.LogWarning($"Failed to get file for Uri: '{documentUri}'", e);
                 scriptFile = null;
                 return scriptFile;
             }
@@ -450,11 +436,51 @@ internal static StreamReader OpenStreamReader(DocumentUri uri)
         internal async Task<string> ReadFileContents(DocumentUri uri)
         {
             PSCommand psCommand = new();
-            psCommand.AddCommand(@"Microsoft.PowerShell.Core\Get-Content")
-                .AddParameter("Path", uri)
+            string pspath;
+            if (uri.Scheme == Uri.UriSchemeFile)
+            {
+                pspath = uri.ToUri().LocalPath;
+            }
+            else
+            {
+                string PSProvider = uri.Authority;
+                string path = uri.Path;
+                pspath = $"{PSProvider}::{path}";
+
+            }
+            /* uri - "file:///c:/Users/dkattan/source/repos/immybot-ref/submodules/PowerShellEditorServices/test/PowerShellEditorServices.Test.Shared/Completion/CompletionExamples.psm1"
+             *  Authority = ""
+             *  Fragment = ""
+             *  Path = "/C:/Users/dkattan/source/repos/immybot-ref/submodules/PowerShellEditorServices/test/PowerShellEditorServices.Test.Shared/Completion/CompletionExamples.psm1"
+             *  Query = ""
+             *  Scheme = "file"
+             * PSPath - "Microsoft.PowerShell.Core\FileSystem::C:\Users\dkattan\source\repos\immybot-ref\submodules\PowerShellEditorServices\test\PowerShellEditorServices.Test.Shared\Completion\CompletionExamples.psm1"
+             * 
+             * Suggested Format:
+             * Authority = "Microsoft.PowerShell.Core\FileSystem"
+             * Scheme = "PSProvider"
+             * Path = "/C:/Users/dkattan/source/repos/immybot-ref/submodules/PowerShellEditorServices/test/PowerShellEditorServices.Test.Shared/Completion/CompletionExamples.psm1"
+             * Result -> "PSProvider://Microsoft.PowerShell.Core/FileSystem::C:/Users/dkattan/source/repos/immybot-ref/submodules/PowerShellEditorServices/test/PowerShellEditorServices.Test.Shared/Completion/CompletionExamples.psm1"
+             * 
+             * Suggested Format 2:
+             * Authority = ""
+             * Scheme = "FileSystem"
+             * Path = "/C:/Users/dkattan/source/repos/immybot-ref/submodules/PowerShellEditorServices/test/PowerShellEditorServices.Test.Shared/Completion/CompletionExamples.psm1"              
+             * Result "FileSystem://c:/Users/dkattan/source/repos/immybot-ref/submodules/PowerShellEditorServices/test/PowerShellEditorServices.Test.Shared/Completion/CompletionExamples.psm1"
+
+             */
+            psCommand.AddCommand("Get-Content")
+                .AddParameter("Path", pspath)
                 .AddParameter("Raw", true);
-            IEnumerable<string> result = await executionService.ExecutePSCommandAsync<string>(psCommand, CancellationToken.None).ConfigureAwait(false);
-            return result.First();
+            IEnumerable<string> result = await executionService.ExecutePSCommandAsync<string>(psCommand, CancellationToken.None, new PowerShell.Execution.PowerShellExecutionOptions()
+            {
+                ThrowOnError = true
+            }).ConfigureAwait(false);
+            if (result.Count() == 0)
+            {
+                throw new FileNotFoundException(pspath);
+            }
+            return result.FirstOrDefault();
         }
         internal Task<string> ResolveWorkspacePath(string path) => ResolveRelativeScriptPathAsync(InitialWorkingDirectory, path);