UseCorrectCasing: Do not correct applications or script paths at all

Rules/UseCorrectCasing.cs

@@ -51,7 +51,7 @@ public override IEnumerable<DiagnosticRecord> AnalyzeScript(Ast ast, string file
                 }
 
                 var commandInfo = Helper.Instance.GetCommandInfo(commandName);
-                if (commandInfo == null)
+                if (commandInfo == null || commandInfo.CommandType == CommandTypes.ExternalScript || commandInfo.CommandType == CommandTypes.Application)
                 {
                     continue;
                 }
@@ -60,12 +60,6 @@ public override IEnumerable<DiagnosticRecord> AnalyzeScript(Ast ast, string file
                 var fullyqualifiedName = $"{commandInfo.ModuleName}\\{shortName}";
                 var isFullyQualified = commandName.Equals(fullyqualifiedName, StringComparison.OrdinalIgnoreCase);
                 var correctlyCasedCommandName = isFullyQualified ? fullyqualifiedName : shortName;
-                if (isWindows && commandInfo.CommandType == CommandTypes.Application && !Path.HasExtension(commandName))
-                {
-                    // For binaries that could exist on both Windows and Linux like e.g. git we do not want to expand
-                    // git to git.exe to keep the script cross-platform compliant
-                    correctlyCasedCommandName = Path.GetFileNameWithoutExtension(correctlyCasedCommandName);
-                }
 
                 if (!commandName.Equals(correctlyCasedCommandName, StringComparison.Ordinal))
                 {

Tests/Rules/UseCorrectCasing.tests.ps1

@@ -16,26 +16,42 @@ Describe "UseCorrectCasing" {
         Invoke-Formatter '?' | Should -Be '?'
     }
 
-    It "Corrects applications on Windows to not end in .exe" -Skip:($IsLinux -or $IsMacOS) {
-        Invoke-Formatter 'Cmd' | Should -Be 'cmd'
-        Invoke-Formatter 'Cmd' | Should -Be 'cmd'
-        Invoke-Formatter 'MORE' | Should -Be 'more'
-        Invoke-Formatter 'WinRM' | Should -Be 'winrm'
-        Invoke-Formatter 'CertMgr' | Should -Be 'certmgr'
+    It "Does not corrects applications on the PATH" -Skip:($IsLinux -or $IsMacOS) {
+        Invoke-Formatter 'Cmd' | Should -Be 'Cmd'
+        Invoke-Formatter 'MORE' | Should -Be 'MORE'
     }
 
     It "Preserves extension of applications on Windows" -Skip:($IsLinux -or $IsMacOS) {
-        Invoke-Formatter 'Cmd.exe' | Should -Be 'cmd.exe'
-        Invoke-Formatter 'MORE.com' | Should -Be 'more.com'
-        Invoke-Formatter 'WinRM.cmd' | Should -Be 'winrm.cmd'
-        Invoke-Formatter 'CertMgr.MSC' | Should -Be 'certmgr.msc'
+        Invoke-Formatter 'cmd.exe' | Should -Be 'cmd.exe'
+        Invoke-Formatter 'more.com' | Should -Be 'more.com'
     }
 
-    It "corrects case of script function" {
-        function Invoke-DummyFunction
-        {
-
+    It "Preserves full application path" {
+        if ($IsLinux -or $IsMacOS) {
+            $applicationPath = '. /bin/ls'
+        }
+        else {
+            $applicationPath = "${env:WINDIR}\System32\cmd.exe"
         }
+        Invoke-Formatter ". $applicationPath" | Should -Be ". $applicationPath"
+    }
+
+    It "Corrects case of script function" {
+        function Invoke-DummyFunction { }
         Invoke-Formatter 'invoke-dummyFunction' | Should -Be 'Invoke-DummyFunction'
     }
+
+    It "Preserves script path" {
+        $path = Join-Path $TestDrive "$([guid]::NewGuid()).ps1"
+        New-Item -ItemType File -Path $path
+        $scriptDefinition = ". $path"
+        Invoke-Formatter $scriptDefinition | Should -Be $scriptDefinition
+    }
+
+    It "Preserves UNC script path" -Skip:($IsLinux -or $IsMacOS) {
+        $uncPath = [System.IO.Path]::Combine("\\$(HOSTNAME.EXE)\C$\", $TestDrive, "$([guid]::NewGuid()).ps1")
+        New-Item -ItemType File -Path $uncPath
+        $scriptDefinition = ". $uncPath"
+        Invoke-Formatter $scriptDefinition | Should -Be $scriptDefinition
+    }
 }