Merge pull request #786 from PowerShell/andschwa/remove-aliases

Fix aliases

src/System.Management.Automation/engine/InitialSessionState.cs

@@ -5121,8 +5121,6 @@ end
                         "Where-Object",    "", ScopedItemOptions.ReadOnly | ScopedItemOptions.AllScope),
                     new SessionStateAliasEntry("?",
                         "Where-Object",    "", ScopedItemOptions.ReadOnly | ScopedItemOptions.AllScope),
-                    new SessionStateAliasEntry("ac",
-                        "Add-Content",     "", ScopedItemOptions.ReadOnly | ScopedItemOptions.AllScope),
                     new SessionStateAliasEntry("clc",
                         "Clear-Content",   "", ScopedItemOptions.ReadOnly | ScopedItemOptions.AllScope),
                     new SessionStateAliasEntry("cli",
@@ -5131,26 +5129,18 @@ end
                         "Clear-ItemProperty",  "", ScopedItemOptions.ReadOnly | ScopedItemOptions.AllScope),
                     new SessionStateAliasEntry("clv",
                         "Clear-Variable",  "", ScopedItemOptions.ReadOnly | ScopedItemOptions.AllScope),
-                    new SessionStateAliasEntry("compare",
-                        "Compare-Object",  "", ScopedItemOptions.ReadOnly | ScopedItemOptions.AllScope),
                     new SessionStateAliasEntry("cpi",
                         "Copy-Item",       "", ScopedItemOptions.ReadOnly | ScopedItemOptions.AllScope),
-                    new SessionStateAliasEntry("cpp",
-                        "Copy-ItemProperty",   "", ScopedItemOptions.ReadOnly | ScopedItemOptions.AllScope),
                     new SessionStateAliasEntry("cvpa",
                         "Convert-Path",    "", ScopedItemOptions.ReadOnly | ScopedItemOptions.AllScope),
                     new SessionStateAliasEntry("dbp",
                         "Disable-PSBreakpoint", "", ScopedItemOptions.ReadOnly | ScopedItemOptions.AllScope),
-                    new SessionStateAliasEntry("diff",
-                        "Compare-Object",  "", ScopedItemOptions.ReadOnly | ScopedItemOptions.AllScope),
                     new SessionStateAliasEntry("ebp",
                         "Enable-PSBreakpoint", "", ScopedItemOptions.ReadOnly | ScopedItemOptions.AllScope),
                     new SessionStateAliasEntry("epal",
                         "Export-Alias",    "", ScopedItemOptions.ReadOnly | ScopedItemOptions.AllScope),
                     new SessionStateAliasEntry("epcsv",
                         "Export-Csv",      "", ScopedItemOptions.ReadOnly | ScopedItemOptions.AllScope),
-                    new SessionStateAliasEntry("fc",
-                        "Format-Custom",   "", ScopedItemOptions.ReadOnly | ScopedItemOptions.AllScope),
                     new SessionStateAliasEntry("fl",
                         "Format-List",     "", ScopedItemOptions.ReadOnly | ScopedItemOptions.AllScope),
                     new SessionStateAliasEntry("ft",
@@ -5260,26 +5250,75 @@ end
                         "Set-Item",        "", ScopedItemOptions.ReadOnly | ScopedItemOptions.AllScope),
                     new SessionStateAliasEntry("sl",
                         "Set-Location",    "", ScopedItemOptions.ReadOnly | ScopedItemOptions.AllScope),
-                    new SessionStateAliasEntry("sleep",
-                        "Start-Sleep",     "", ScopedItemOptions.ReadOnly | ScopedItemOptions.AllScope),
-                    new SessionStateAliasEntry("sort",
-                        "Sort-Object",     "", ScopedItemOptions.ReadOnly | ScopedItemOptions.AllScope),
                     new SessionStateAliasEntry("sp",
                         "Set-ItemProperty",    "", ScopedItemOptions.ReadOnly | ScopedItemOptions.AllScope),
                     new SessionStateAliasEntry("saps",
                         "Start-Process",    "", ScopedItemOptions.ReadOnly | ScopedItemOptions.AllScope),
-                    new SessionStateAliasEntry("start",
-                        "Start-Process",    "", ScopedItemOptions.ReadOnly | ScopedItemOptions.AllScope),
                     new SessionStateAliasEntry("spps",
                         "Stop-Process",    "", ScopedItemOptions.ReadOnly | ScopedItemOptions.AllScope),
                     new SessionStateAliasEntry("spsv",
                         "Stop-Service",    "", ScopedItemOptions.ReadOnly | ScopedItemOptions.AllScope),
                     new SessionStateAliasEntry("sv",
                         "Set-Variable",    "", ScopedItemOptions.ReadOnly | ScopedItemOptions.AllScope),
+// Porting note: #if !LINUX is used to disable alises for cmdlets which conflict with Linux / OS X
+#if !LINUX
+                    // ac is a native command on OS X
+                    new SessionStateAliasEntry("ac",
+                        "Add-Content",     "", ScopedItemOptions.ReadOnly | ScopedItemOptions.AllScope),
+                    new SessionStateAliasEntry("compare",
+                        "Compare-Object",  "", ScopedItemOptions.ReadOnly | ScopedItemOptions.AllScope),
+                    new SessionStateAliasEntry("cpp",
+                        "Copy-ItemProperty",   "", ScopedItemOptions.ReadOnly | ScopedItemOptions.AllScope),
+                    new SessionStateAliasEntry("diff",
+                        "Compare-Object",  "", ScopedItemOptions.ReadOnly | ScopedItemOptions.AllScope),
+                    new SessionStateAliasEntry("sleep",
+                        "Start-Sleep",     "", ScopedItemOptions.ReadOnly | ScopedItemOptions.AllScope),
+                    new SessionStateAliasEntry("sort",
+                        "Sort-Object",     "", ScopedItemOptions.ReadOnly | ScopedItemOptions.AllScope),
+                    new SessionStateAliasEntry("start",
+                        "Start-Process",    "", ScopedItemOptions.ReadOnly | ScopedItemOptions.AllScope),
                     new SessionStateAliasEntry("tee",
                         "Tee-Object",      "", ScopedItemOptions.ReadOnly | ScopedItemOptions.AllScope),
                     new SessionStateAliasEntry("write",
                         "Write-Output",    "", ScopedItemOptions.ReadOnly | ScopedItemOptions.AllScope),
+                    // These were traqnsferred from the "transferred from the profile" section
+                    new SessionStateAliasEntry("cat",
+                        "Get-Content",     "", ScopedItemOptions.AllScope),
+                    new SessionStateAliasEntry("cp",
+                        "Copy-Item",       "", ScopedItemOptions.AllScope),
+                    new SessionStateAliasEntry("ls",
+                        "Get-ChildItem",   "", ScopedItemOptions.AllScope),
+                    new SessionStateAliasEntry("man",
+                        "help",            "", ScopedItemOptions.AllScope),
+                    new SessionStateAliasEntry("mount",
+                        "New-PSDrive",    "", ScopedItemOptions.AllScope),
+                    new SessionStateAliasEntry("mv",
+                        "Move-Item",       "", ScopedItemOptions.AllScope),
+                    new SessionStateAliasEntry("ps",
+                        "Get-Process",     "", ScopedItemOptions.AllScope),
+                    new SessionStateAliasEntry("rm",
+                        "Remove-Item",     "", ScopedItemOptions.AllScope),
+                    new SessionStateAliasEntry("rmdir",
+                        "Remove-Item",     "", ScopedItemOptions.AllScope),
+#endif
+                    // Bash built-ins we purposefully keep even if they override native commands
+                    new SessionStateAliasEntry("cd",
+                        "Set-Location",    "", ScopedItemOptions.AllScope),
+                    new SessionStateAliasEntry("dir",
+                        "Get-ChildItem",   "", ScopedItemOptions.AllScope),
+                    new SessionStateAliasEntry("echo",
+                        "Write-Output",    "", ScopedItemOptions.AllScope),
+                    new SessionStateAliasEntry("fc",
+                        "Format-Custom",   "", ScopedItemOptions.ReadOnly | ScopedItemOptions.AllScope),
+                    new SessionStateAliasEntry("kill",
+                        "Stop-Process",    "", ScopedItemOptions.AllScope),
+                    new SessionStateAliasEntry("pwd",
+                        "Get-Location",    "", ScopedItemOptions.AllScope),
+                    new SessionStateAliasEntry("type",
+                        "Get-Content",     "", ScopedItemOptions.AllScope),
+                    // Native commands we keep because the functions act correctly on Linux
+                    new SessionStateAliasEntry("clear",
+                        "Clear-Host",      "", ScopedItemOptions.AllScope),
 //#if !CORECLR is used to disable aliases for cmdlets which are not available on OneCore
 #if !CORECLR
                     new SessionStateAliasEntry("asnp",
@@ -5316,46 +5355,18 @@ end
                         "Out-Printer",     "", ScopedItemOptions.AllScope),
 #endif
                     // Aliases transferred from the profile
-                    new SessionStateAliasEntry("cat",
-                        "Get-Content",     "", ScopedItemOptions.AllScope),
-                    new SessionStateAliasEntry("cd",
-                        "Set-Location",    "", ScopedItemOptions.AllScope),
-                    new SessionStateAliasEntry("clear",
-                        "Clear-Host",      "", ScopedItemOptions.AllScope),
-                    new SessionStateAliasEntry("cp",
-                        "Copy-Item",       "", ScopedItemOptions.AllScope),
                     new SessionStateAliasEntry("h",
                         "Get-History",     "", ScopedItemOptions.AllScope),
                     new SessionStateAliasEntry("history",
                         "Get-History",     "", ScopedItemOptions.AllScope),
-                    new SessionStateAliasEntry("kill",
-                        "Stop-Process",    "", ScopedItemOptions.AllScope),
-                    new SessionStateAliasEntry("ls",
-                        "Get-ChildItem",   "", ScopedItemOptions.AllScope),
-                    new SessionStateAliasEntry("man",
-                        "help",            "", ScopedItemOptions.AllScope),
-                    new SessionStateAliasEntry("mount",
-                        "New-PSDrive",    "", ScopedItemOptions.AllScope),
                     new SessionStateAliasEntry("md",
                         "mkdir",          "", ScopedItemOptions.AllScope),
-                    new SessionStateAliasEntry("mv",
-                        "Move-Item",       "", ScopedItemOptions.AllScope),
                     new SessionStateAliasEntry("popd",
                         "Pop-Location",    "", ScopedItemOptions.AllScope),
-                    new SessionStateAliasEntry("ps",
-                        "Get-Process",     "", ScopedItemOptions.AllScope),
                     new SessionStateAliasEntry("pushd",
                         "Push-Location",   "", ScopedItemOptions.AllScope),
-                    new SessionStateAliasEntry("pwd",
-                        "Get-Location",    "", ScopedItemOptions.AllScope),
                     new SessionStateAliasEntry("r",
                         "Invoke-History",  "", ScopedItemOptions.AllScope),
-                    new SessionStateAliasEntry("rm",
-                        "Remove-Item",     "", ScopedItemOptions.AllScope),
-                    new SessionStateAliasEntry("rmdir",
-                        "Remove-Item",     "", ScopedItemOptions.AllScope),
-                    new SessionStateAliasEntry("echo",
-                        "Write-Output",    "", ScopedItemOptions.AllScope),
                     new SessionStateAliasEntry("cls",
                         "Clear-Host",      "", ScopedItemOptions.AllScope),
                     new SessionStateAliasEntry("chdir",
@@ -5364,8 +5375,6 @@ end
                         "Copy-Item",       "", ScopedItemOptions.AllScope),
                     new SessionStateAliasEntry("del",
                         "Remove-Item",     "", ScopedItemOptions.AllScope),
-                    new SessionStateAliasEntry("dir",
-                        "Get-ChildItem",   "", ScopedItemOptions.AllScope),
                     new SessionStateAliasEntry("erase",
                         "Remove-Item",     "", ScopedItemOptions.AllScope),
                     new SessionStateAliasEntry("move",
@@ -5376,8 +5385,6 @@ end
                         "Rename-Item",     "", ScopedItemOptions.AllScope),
                     new SessionStateAliasEntry("set",
                         "Set-Variable",    "", ScopedItemOptions.AllScope),
-                    new SessionStateAliasEntry("type",
-                        "Get-Content",     "", ScopedItemOptions.AllScope),
                     new SessionStateAliasEntry("icm",
                         "Invoke-Command",  "", ScopedItemOptions.AllScope),
                     new SessionStateAliasEntry("clhy",
@@ -5460,12 +5467,18 @@ if($paths) {
             SessionStateFunctionEntry.GetDelayParsedFunctionEntry("prompt", DefaultPromptFunctionText), 
             SessionStateFunctionEntry.GetDelayParsedFunctionEntry("TabExpansion2", TabExpansionFunctionText),
             SessionStateFunctionEntry.GetDelayParsedFunctionEntry("Clear-Host", GetClearHostFunctionText()),
+            // Porting note: we keep more because the function acts correctly on Linux
             SessionStateFunctionEntry.GetDelayParsedFunctionEntry("more", DefaultMoreFunctionText),
             SessionStateFunctionEntry.GetDelayParsedFunctionEntry("help", GetHelpPagingFunctionText()),
+            // Porting note: we remove mkdir on Linux because it is a conflict
+            #if !LINUX
             SessionStateFunctionEntry.GetDelayParsedFunctionEntry("mkdir", GetMkdirFunctionText()),
+            #endif
             SessionStateFunctionEntry.GetDelayParsedFunctionEntry("Get-Verb", GetGetVerbText()),
             SessionStateFunctionEntry.GetDelayParsedFunctionEntry("oss", GetOSTFunctionText()),
 
+            // Porting note: we remove the drive functions from Linux because they make no sense
+            #if !LINUX
             // Default drives
             SessionStateFunctionEntry.GetDelayParsedFunctionEntry("A:", DefaultSetDriveFunctionText, SetDriveScriptBlock),
             SessionStateFunctionEntry.GetDelayParsedFunctionEntry("B:", DefaultSetDriveFunctionText, SetDriveScriptBlock),
@@ -5493,6 +5506,7 @@ if($paths) {
             SessionStateFunctionEntry.GetDelayParsedFunctionEntry("X:", DefaultSetDriveFunctionText, SetDriveScriptBlock),
             SessionStateFunctionEntry.GetDelayParsedFunctionEntry("Y:", DefaultSetDriveFunctionText, SetDriveScriptBlock),
             SessionStateFunctionEntry.GetDelayParsedFunctionEntry("Z:", DefaultSetDriveFunctionText, SetDriveScriptBlock),
+            #endif
 
             SessionStateFunctionEntry.GetDelayParsedFunctionEntry("cd..", "Set-Location .."),
             SessionStateFunctionEntry.GetDelayParsedFunctionEntry("cd\\", "Set-Location \\"),

test/powershell/Compare-Object.Tests.ps1

@@ -35,35 +35,6 @@ Describe "Compare-Object" {
 	{ Compare-Object -ReferenceObject $(Get-Content $file1) $(Get-Content $file2) } | Should Not Throw
     }
 
-    It "Should be able to execute compare object using the compare alias" {
-	{ compare -ReferenceObject $(Get-Content $file1) -DifferenceObject $(Get-Content $file2) } | Should Not Throw
-    }
-
-    It "Should produce the same output when the compare alias is used" {
-	$alias    = compare -ReferenceObject $(Get-Content $file1) -DifferenceObject $(Get-Content $file2)
-	$fullname = Compare-Object -ReferenceObject $(Get-Content $file1) -DifferenceObject $(Get-Content $file2)
-
-	$alias[0].InputObject   | Should Be $fullname[0].InputObject
-	$alias[0].SideIndicator | Should Be $fullname[0].SideIndicator
-	$alias[1].InputObject   | Should Be $fullname[1].InputObject
-	$alias[1].SideIndicator | Should Be $fullname[1].SideIndicator
-
-	$alias.Length | Should Be 2 # There should be no other elements to test
-
-    }
-
-    It "Should be able to execute compare object using the diff alias" {
-	$alias    = diff -ReferenceObject $(Get-Content $file1) -DifferenceObject $(Get-Content $file2)
-	$fullname = Compare-Object -ReferenceObject $(Get-Content $file1) -DifferenceObject $(Get-Content $file2)
-
-	$alias[0].InputObject   | Should Be $fullname[0].InputObject
-	$alias[0].SideIndicator | Should Be $fullname[0].SideIndicator
-	$alias[1].InputObject   | Should Be $fullname[1].InputObject
-	$alias[1].SideIndicator | Should Be $fullname[1].SideIndicator
-
-	$alias.Length | Should Be 2 # There should be no other elements to test
-    }
-
     It "Should indicate data that exists only in the reference dataset" {
 	$actualOutput = Compare-Object -ReferenceObject $(Get-Content $file3) -DifferenceObject $(Get-Content $file4)
 

test/powershell/Default-Aliases.Tests.ps1

@@ -0,0 +1,19 @@
+$removeAliasList = @("ac","compare","cpp","diff","sleep","sort","start","cat","cp","ls","man","mount","mv","ps","rm","rmdir")
+$keepAliasList = @{cd="Set-Location"},@{dir="Get-ChildItem"},@{echo="Write-output"},@{fc="format-custom"},@{kill="stop-process"},@{clear="clear-host"}
+Describe "Windows aliases do not conflict with Linux commands" {
+    foreach ($alias in $removeAliasList) {
+        It "Should not have certain aliases on Linux" -Skip:$IsWindows {
+            Test-Path Alias:$alias | Should Be $false
+        }
+    }
+
+    foreach ($alias in $keepAliasList) {
+        It "Should have aliases that are Bash built-ins on Linux" {
+            (Get-Alias $alias.Keys).Definition | Should Be $alias.Values
+        }
+    }
+
+    It "Should have more as a function" {
+        Test-Path Function:more | Should Be $true
+    }
+}

test/powershell/Export-Alias.Tests.ps1

@@ -144,7 +144,7 @@ Describe "Export-Alias" {
 
 	Test-Path $fulltestpath | Should Be $true
 
-	$actual   = Get-Content $fulltestpath | Sort
+	$actual   = Get-Content $fulltestpath | Sort-Object
 	$expected = Get-Command -CommandType Alias
 	
 	for ( $i=0; $i -lt $expected.Length; $i++)

test/powershell/Get-ChildItem.Tests.ps1

@@ -9,10 +9,6 @@ Describe "Get-ChildItem" {
 	popd
     }
 
-    It "Should be able to use the ls alias" {
-	$(ls .).Name.Length | Should Be $(Get-ChildItem .).Name.Length
-    }
-
     It "Should have a the proper fields and be populated" {
 	$var = Get-Childitem .
 

test/powershell/Get-Content.Tests.ps1

@@ -40,10 +40,6 @@ Describe "Get-Content" {
 	(Get-Content -Path $testPath) | Should Be $testString
     }
 
-    It "Should be able to call using the cat alias" {
-	{ cat -Path $testPath } | Should Not Throw
-    }
-
     It "Should be able to call using the gc alias" {
 	{ gc -Path $testPath } | Should Not Throw
     }
@@ -55,11 +51,9 @@ Describe "Get-Content" {
     It "Should return the same values for aliases" {
 	$getContentAlias = Get-Content -Path $testPath
 	$gcAlias         = gc -Path $testPath
-	$catAlias        = cat -Path $testPath
 	$typeAlias       = type -Path $testPath
 
 	$getContentAlias | Should Be $gcAlias
-	$getContentAlias | Should Be $catAlias
 	$getContentAlias | Should Be $typeAlias
     }
 
@@ -68,21 +62,21 @@ Describe "Get-Content" {
     }
 
     It "Should be able to specify the number of lines to get the content of using the TotalCount switch" {
-	$returnArray = (cat -Path $testPath2 -TotalCount 2)
+	$returnArray = (Get-Content -Path $testPath2 -TotalCount 2)
 
 	$returnArray[0] | Should Be $firstline
 	$returnArray[1] | Should Be $secondline
     }
 
     It "Should be able to specify the number of lines to get the content of using the Head switch" {
-	$returnArray = (cat -Path $testPath2 -Head 2)
+	$returnArray = (Get-Content -Path $testPath2 -Head 2)
 
 	$returnArray[0] | Should Be $firstline
 	$returnArray[1] | Should Be $secondline
     }
 
     It "Should be able to specify the number of lines to get the content of using the First switch" {
-	$returnArray = (cat -Path $testPath2 -First 2)
+	$returnArray = (Get-Content -Path $testPath2 -First 2)
 
 	$returnArray[0] | Should Be $firstline
 	$returnArray[1] | Should Be $secondline

test/powershell/Get-Item.Tests.ps1

@@ -15,6 +15,6 @@ Describe "Get-Item" {
     }
 
     It "Should have mode flags set" {
-	ls $PSScriptRoot | foreach-object { $_.Mode | Should Not BeNullOrEmpty }
+	Get-ChildItem $PSScriptRoot | foreach-object { $_.Mode | Should Not BeNullOrEmpty }
     }
 }

test/powershell/NativeLinuxCommands.Tests.ps1

@@ -1,30 +1,22 @@
 Describe "NativeLinuxCommands" {
     It "Should return a type of System.Object for hostname cmdlet" {
-    (hostname).GetType().BaseType | Should Be 'System.Object'
+        (hostname).GetType().BaseType | Should Be 'System.Object'
-	(hostname).GetType().Name | Should Be String
+        (hostname).GetType().Name | Should Be String
     }
 
     It "Should have not empty Name flags set for ps object" {
-	ps | foreach-object { $_.ProcessName | Should Not BeNullOrEmpty }
+        Get-Process | foreach-object { $_.ProcessName | Should Not BeNullOrEmpty }
     }
-	
+
-	It "Should find Application grep" -Skip:$IsWindows {
+    It "Should find Application grep" -Skip:$IsWindows {
-    (get-command grep).CommandType | Should Be Application
+        (get-command grep).CommandType | Should Be Application
     }
 
     It "Should pipe to grep and get result" -Skip:$IsWindows {
-    "hello world" | grep hello | Should Be "hello world"
+        "hello world" | grep hello | Should Be "hello world"
     }
-	
+
-	It "Should find Application touch" -Skip:$IsWindows {
+    It "Should find Application touch" -Skip:$IsWindows {
-    (get-command touch).CommandType | Should Be Application
+        (get-command touch).CommandType | Should Be Application
-    }
-	
-	It "Should find Alias ls" -Skip:$IsWindows {
-    (get-command ls).CommandType | Should Be Alias
-    }
-	
-	It "Should find Function mkdir" -Skip:$IsWindows {
-    (get-command mkdir).CommandType | Should Be Function
     }
 }

test/powershell/Start-Sleep.Tests.ps1

@@ -24,10 +24,5 @@ Describe "Start-Sleep" {
 	    $result = Measure-Command { Start-Sleep -s 1 }
 	    $result.TotalSeconds | Should BeGreaterThan 0.25
 	}
-
-	It "Should sleep for at least 1 second using the alias" {
-	    $result = Measure-Command { sleep -s 1 }
-	    $result.TotalSeconds | Should BeGreaterThan 0.25
-	}
     }
 }

test/powershell/Tee-Object.Tests.ps1

@@ -6,15 +6,8 @@ Describe "Tee-Object" {
 
 	It "Should return the output to the screen and to the variable" {
 	    $teefile = $testfile
-	    echo teeobjecttest1    |    Tee-Object -variable teeresults
+	    echo teeobjecttest1 | Tee-Object -variable teeresults
-	    $teeresults                 |     Should Be "teeobjecttest1"
+	    $teeresults         | Should Be "teeobjecttest1"
-	    Remove-Item $teefile -ErrorAction SilentlyContinue
-	}
-
-	It "Should return the output to the screen and to the variable from the alias" {
-	    $teefile = $testfile
-	    echo teeobjecttest2    |    tee -variable teeresults
-	    $teeresults                 |    Should Be "teeobjecttest2"
 	    Remove-Item $teefile -ErrorAction SilentlyContinue
 	}
 
@@ -24,12 +17,5 @@ Describe "Tee-Object" {
 	    Get-Content $teefile | Should Be "teeobjecttest3"
 	    Remove-Item $teefile -ErrorAction SilentlyContinue
 	}
-
-	It "Should tee the output to a file using the alias" {
-	    $teefile = $testfile
-	    echo teeobjecttest4  | tee $teefile
-	    Get-Content $teefile | Should Be "teeobjecttest4"
-	    Remove-item $teefile -ErrorAction SilentlyContinue
-	}
     }
 }