Add BuildIfChanged Task and Dev Instructions

Author: JustinGrote

PowerShellEditorServices.build.ps1

@@ -125,18 +125,20 @@ task RestorePsesModules -If (-not (Test-Path "module/PSReadLine") -or -not (Test
 }
 
 Task Build FindDotNet, CreateBuildInfo, RestorePsesModules, {
-    Write-Build DarkGreen "Building PowerShellEditorServices"
+    Write-Build DarkGreen 'Building PowerShellEditorServices'
     Invoke-BuildExec { & dotnet publish $script:dotnetBuildArgs ./src/PowerShellEditorServices/PowerShellEditorServices.csproj -f $script:NetFramework.Standard }
     Invoke-BuildExec { & dotnet publish $script:dotnetBuildArgs ./src/PowerShellEditorServices.Hosting/PowerShellEditorServices.Hosting.csproj -f $script:NetFramework.PS74 }
 
     if (-not $script:IsNix) {
         Invoke-BuildExec { & dotnet publish $script:dotnetBuildArgs ./src/PowerShellEditorServices.Hosting/PowerShellEditorServices.Hosting.csproj -f $script:NetFramework.PS51 }
     }
+} -If {
+    $Null -eq $script:ChangesDetected -or $true -eq $script:ChangesDetected
 }
 
 Task AssembleModule -After Build {
-    Write-Build DarkGreen "Assembling PowerShellEditorServices module"
-    $psesOutputPath = "./module/PowerShellEditorServices"
+    Write-Build DarkGreen 'Assembling PowerShellEditorServices module'
+    $psesOutputPath = './module/PowerShellEditorServices'
     $psesBinOutputPath = "$psesOutputPath/bin"
     $psesDepsPath = "$psesBinOutputPath/Common"
     $psesCoreHostPath = "$psesBinOutputPath/Core"
@@ -147,8 +149,8 @@ Task AssembleModule -After Build {
     }
 
     # Copy documents to module root
-    foreach ($document in @("LICENSE", "NOTICE.txt", "README.md", "SECURITY.md")) {
-        Copy-Item -Force -Path $document -Destination "./module"
+    foreach ($document in @('LICENSE', 'NOTICE.txt', 'README.md', 'SECURITY.md')) {
+        Copy-Item -Force -Path $document -Destination './module'
     }
 
     # Assemble PSES module
@@ -186,13 +188,13 @@ Task AssembleModule -After Build {
 }
 
 Task BuildCmdletHelp -After AssembleModule {
-    Write-Build DarkGreen "Building cmdlet help"
+    Write-Build DarkGreen 'Building cmdlet help'
     New-ExternalHelp -Path ./module/docs -OutputPath ./module/PowerShellEditorServices/Commands/en-US -Force
 }
 
 Task SetupHelpForTests {
-    Write-Build DarkMagenta "Updating help (for tests)"
-    Update-Help -Module Microsoft.PowerShell.Management,Microsoft.PowerShell.Utility -Force -Scope CurrentUser -UICulture en-US
+    Write-Build DarkMagenta 'Updating help (for tests)'
+    Update-Help -Module Microsoft.PowerShell.Management, Microsoft.PowerShell.Utility -Force -Scope CurrentUser -UICulture en-US
 }
 
 Task TestPS74 Build, SetupHelpForTests, {
@@ -210,7 +212,7 @@ Task TestPS51 -If (-not $script:IsNix) Build, SetupHelpForTests, {
         # TODO: See https://github.com/PowerShell/vscode-powershell/issues/3886
         # Inheriting the module path for powershell.exe breaks things!
         $originalModulePath = $env:PSModulePath
-        $env:PSModulePath = ""
+        $env:PSModulePath = ''
         Invoke-BuildExec { & dotnet $script:dotnetTestArgs $script:NetFramework.PS51 }
     } finally {
         $env:PSModulePath = $originalModulePath
@@ -221,7 +223,7 @@ Task TestPS51 -If (-not $script:IsNix) Build, SetupHelpForTests, {
 # should just be the latest supported framework.
 Task TestE2EPwsh Build, SetupHelpForTests, {
     Set-Location ./test/PowerShellEditorServices.Test.E2E/
-    $env:PWSH_EXE_NAME = "pwsh"
+    $env:PWSH_EXE_NAME = 'pwsh'
     Invoke-BuildExec { & dotnet $script:dotnetTestArgs $script:NetFramework.PS74 }
 }
 
@@ -240,12 +242,12 @@ Task TestE2EDaily -If (Test-Path $PwshDaily) Build, SetupHelpForTests, {
 
 Task TestE2EPowerShell -If (-not $script:IsNix) Build, SetupHelpForTests, {
     Set-Location ./test/PowerShellEditorServices.Test.E2E/
-    $env:PWSH_EXE_NAME = "powershell"
+    $env:PWSH_EXE_NAME = 'powershell'
     try {
         # TODO: See https://github.com/PowerShell/vscode-powershell/issues/3886
         # Inheriting the module path for powershell.exe breaks things!
         $originalModulePath = $env:PSModulePath
-        $env:PSModulePath = ""
+        $env:PSModulePath = ''
         Invoke-BuildExec { & dotnet $script:dotnetTestArgs $script:NetFramework.PS74 }
     } finally {
         $env:PSModulePath = $originalModulePath
@@ -254,45 +256,62 @@ Task TestE2EPowerShell -If (-not $script:IsNix) Build, SetupHelpForTests, {
 
 Task TestE2EPwshCLM -If (-not $script:IsNix) Build, SetupHelpForTests, {
     Set-Location ./test/PowerShellEditorServices.Test.E2E/
-    $env:PWSH_EXE_NAME = "pwsh"
+    $env:PWSH_EXE_NAME = 'pwsh'
 
-    if (-not [Security.Principal.WindowsIdentity]::GetCurrent().Owner.IsWellKnown("BuiltInAdministratorsSid")) {
-        Write-Build DarkRed "Skipping Constrained Language Mode tests as they must be ran in an elevated process"
+    if (-not [Security.Principal.WindowsIdentity]::GetCurrent().Owner.IsWellKnown('BuiltInAdministratorsSid')) {
+        Write-Build DarkRed 'Skipping Constrained Language Mode tests as they must be ran in an elevated process'
         return
     }
 
     try {
-        Write-Build DarkGreen "Running end-to-end tests in Constrained Language Mode"
-        [System.Environment]::SetEnvironmentVariable("__PSLockdownPolicy", "0x80000007", [System.EnvironmentVariableTarget]::Machine)
+        Write-Build DarkGreen 'Running end-to-end tests in Constrained Language Mode'
+        [System.Environment]::SetEnvironmentVariable('__PSLockdownPolicy', '0x80000007', [System.EnvironmentVariableTarget]::Machine)
         Invoke-BuildExec { & dotnet $script:dotnetTestArgs $script:NetFramework.PS74 }
     } finally {
-        [System.Environment]::SetEnvironmentVariable("__PSLockdownPolicy", $null, [System.EnvironmentVariableTarget]::Machine)
+        [System.Environment]::SetEnvironmentVariable('__PSLockdownPolicy', $null, [System.EnvironmentVariableTarget]::Machine)
     }
 }
 
 Task TestE2EPowerShellCLM -If (-not $script:IsNix) Build, SetupHelpForTests, {
     Set-Location ./test/PowerShellEditorServices.Test.E2E/
-    $env:PWSH_EXE_NAME = "powershell"
+    $env:PWSH_EXE_NAME = 'powershell'
 
-    if (-not [Security.Principal.WindowsIdentity]::GetCurrent().Owner.IsWellKnown("BuiltInAdministratorsSid")) {
-        Write-Build DarkRed "Skipping Constrained Language Mode tests as they must be ran in an elevated process"
+    if (-not [Security.Principal.WindowsIdentity]::GetCurrent().Owner.IsWellKnown('BuiltInAdministratorsSid')) {
+        Write-Build DarkRed 'Skipping Constrained Language Mode tests as they must be ran in an elevated process'
         return
     }
 
     try {
-        Write-Build DarkGreen "Running end-to-end tests in Constrained Language Mode"
-        [System.Environment]::SetEnvironmentVariable("__PSLockdownPolicy", "0x80000007", [System.EnvironmentVariableTarget]::Machine)
+        Write-Build DarkGreen 'Running end-to-end tests in Constrained Language Mode'
+        [System.Environment]::SetEnvironmentVariable('__PSLockdownPolicy', '0x80000007', [System.EnvironmentVariableTarget]::Machine)
         # TODO: See https://github.com/PowerShell/vscode-powershell/issues/3886
         # Inheriting the module path for powershell.exe breaks things!
         $originalModulePath = $env:PSModulePath
-        $env:PSModulePath = ""
+        $env:PSModulePath = ''
         Invoke-BuildExec { & dotnet $script:dotnetTestArgs $script:NetFramework.PS74 }
     } finally {
-        [System.Environment]::SetEnvironmentVariable("__PSLockdownPolicy", $null, [System.EnvironmentVariableTarget]::Machine)
+        [System.Environment]::SetEnvironmentVariable('__PSLockdownPolicy', $null, [System.EnvironmentVariableTarget]::Machine)
         $env:PSModulePath = $originalModulePath
     }
 }
 
+Task BuildIfChanged.Init -Before BuildIfChanged {
+    [bool]$SCRIPT:ChangesDetected = $false
+}
+
+Task BuildIfChanged -Inputs {
+    $slash = [IO.Path]::DirectorySeparatorChar
+    Get-ChildItem ./src -Filter '*.cs' -Recurse
+    | Where-Object FullName -NotLike ('*' + $slash + 'obj' + $slash + '*')
+    | Where-Object FullName -NotLike ('*' + $slash + 'bin' + $slash + '*')
+} -Outputs {
+    './src/PowerShellEditorServices/bin/Debug/netstandard2.0/Microsoft.PowerShell.EditorServices.dll'
+    './src/PowerShellEditorServices.Hosting/bin/Debug/net8.0/Microsoft.PowerShell.EditorServices.Hosting.dll'
+} -Jobs {
+    Write-Build DarkMagenta 'Changes detected, rebuilding'
+    $SCRIPT:ChangesDetected = $true
+}, Build
+
 Task Test TestPS74, TestE2EPwsh, TestPS51, TestE2EPowerShell
 
 Task TestFull Test, TestE2EDaily, TestE2EPwshCLM, TestE2EPowerShellCLM

README.md

@@ -144,7 +144,7 @@ Please note that we only consider the following as stable APIs that can be relie
 
 The types of PowerShell Editor Services can change at any moment and should not be linked against in a production environment.
 
-## Development
+## Development Environment
 
 > NOTE: The easiest way to manually test changes you've made in PowerShellEditorServices is to follow the [vscode-powershell development doc](https://github.com/PowerShell/vscode-powershell/blob/main/docs/development.md) to get a local build of the VS Code extension to use your local build of PowerShellEditorServices.
 
@@ -165,31 +165,31 @@ Install-Module InvokeBuild -Scope CurrentUser
 Install-Module platyPS -Scope CurrentUser
 ```
 
-### 4. Delete `NuGet.Config`
+### 4. Adjust `Nuget.Config` if necessary
 
-Our NuGet configuration points to a private feed necessary for secure builds,
-and it must be committed to the repo as it is.
-The easiest way to build without access to that private feed is to delete the file:
+Our NuGet configuration uses a secure feed with whitelisted third party dependency packages. If your contribution requires any changes to the included NuGet packages, you must disable this secure feed.
+
+First, run this command to prevent accidentally commiting changes to this file
 
 ```powershell
-Remove-Item NuGet.Config
+git update-index --skip-worktree nuget.config
 ```
 
-Please be careful not to commit this change in a PR.
+Then, either delete the file or remove the `packagesources` section to use nuget.org again. Your PR _will_ fail automated build checks and you _must_ inform us at the top of your PR so the appropriate packages can be added if approved.
 
-Now you're ready to build the code.
-You can do so in one of two ways:
+## Build PowerShell Editor Services
+Now you're ready to build the code. You can do so in one of two ways:
 
-### Building the code from PowerShell
+### PowerShell
 
 ```powershell
 PS C:\path\to\PowerShellEditorServices> Invoke-Build Build
 ```
 
-### Building the code from Visual Studio Code
+### Visual Studio Code
 
 Open the PowerShellEditorServices folder that you cloned locally and press <kbd>Ctrl+Shift+B</kbd>
-(or <kbd>Cmd+Shift+B</kbd> on macOS).
+(or <kbd>Cmd+Shift+B</kbd> on macOS) which will run the default build task.
 
 ## Code of Conduct