Add a PowerShell build script and wire it up in tasks.json

This change introduces a new vscode-powershell.build.ps1 script powered by
Invoke-Build.  The goal of this script is to handle build tasks which
would affect both the PowerShell extension and PowerShell Editor Services
so that it's much easier to hit F5 and build everything before launching
the debugger.

This is also a starting point for release automation so we can start
shipping faster!

Author: daviwil

.vscode/launch.json

@@ -10,7 +10,7 @@
 			"stopOnEntry": false,
 			"sourceMaps": true,
 			"outDir": "${workspaceRoot}/out",
-			"preLaunchTask": "compile"
+			"preLaunchTask": "Build"
 		},
 		{
 			"name": "Attach",

.vscode/tasks.json

@@ -1,55 +1,38 @@
-// Available variables which can be used inside of strings.
-// ${workspaceRoot}: the root folder of the team
-// ${file}: the current opened file
-// ${fileBasename}: the current opened file's basename
-// ${fileDirname}: the current opened file's dirname
-// ${fileExtname}: the current opened file's extension
-// ${cwd}: the current working directory of the spawned process
-
-// A task runner that calls a custom npm script that compiles the extension.
 {
-	"version": "0.1.0",
-
-	// we want to run npm
-	"command": "npm",
-
-	// the command is a shell script
-	"isShellCommand": true,
+    "version": "0.1.0",
+
+    "windows": {
+        "command": "${env.windir}\\sysnative\\windowspowershell\\v1.0\\PowerShell.exe",
+        "args": [ "-NoProfile", "-ExecutionPolicy", "Bypass" ]
+    },
+    "linux": {
+        "command": "/usr/bin/powershell",
+        "args": [ "-NoProfile" ]
+    },
+    "osx": {
+        "command": "/usr/local/bin/powershell",
+        "args": [ "-NoProfile" ]
+    },
+
+    "isShellCommand": true,
+    "showOutput": "always",
 
     "tasks": [
         {
-            "taskName": "install",
-            "showOutput": "always"
+            "taskName": "Install",
+            "suppressTaskName": true,
+            "args": [ "Invoke-Build Restore" ]
         },
         {
-            "taskName": "compile",
-            "isBuildCommand": true,
+            "taskName": "Clean",
             "suppressTaskName": true,
-
-            // show the output window only if unrecognized errors occur.
-            "showOutput": "silent",
-
-            // we run the custom script "compile" as defined in package.json
-            "args": ["run", "compile"],
-
-            // use the standard tsc problem matcher to find compile problems in the output.
-            "problemMatcher": "$tsc"
+            "args": [ "Invoke-Build Clean" ]
         },
         {
-            "taskName": "compile-watch",
+            "taskName": "Build",
             "suppressTaskName": true,
-
-            // show the output window only if unrecognized errors occur.
-            "showOutput": "silent",
-
-            // we run the custom script "compile-watch" as defined in package.json
-            "args": ["run", "compile-watch"],
-
-            // The tsc compiler is started in watching mode
-            "isWatching": true,
-
-            // use the standard tsc in watch mode problem matcher to find compile problems in the output.
-            "problemMatcher": "$tsc-watch"
+            "isBuildCommand": true,
+            "args": [ "Invoke-Build Build" ]
         }
     ]
 }

.vscodeignore

@@ -1,4 +1,5 @@
 .vscode/**
+vscode-powershell.build.ps1
 typings/**
 **/*.ts
 .gitignore

vscode-powershell.build.ps1

@@ -0,0 +1,59 @@
+#
+# Copyright (c) Microsoft. All rights reserved.
+# Licensed under the MIT license. See LICENSE file in the project root for full license information.
+#
+
+param(
+    [string]$EditorServicesRepoPath = $null
+)
+
+#Requires -Modules @{ModuleName="InvokeBuild";ModuleVersion="3.2.1"}
+
+task ResolveEditorServicesPath -Before Clean, Build {
+    $script:psesRepoPath = `
+        if ($EditorServicesRepoPath) {
+            $EditorServicesRepoPath
+        }
+        else {
+            "$PSScriptRoot/../PowerShellEditorServices/"
+        }
+
+    if (!(Test-Path $script:psesRepoPath)) {
+        # Clear the path so that it won't be used
+        Write-Host "`n### WARNING: The PowerShellEditorServices repo cannot be found at path $script:psesRepoPath`n" -ForegroundColor Yellow
+        $script:psesRepoPath = $null
+    }
+    else {
+        $script:psesRepoPath = Resolve-Path $script:psesRepoPath
+        $script:psesBuildScriptPath = Resolve-Path "$script:psesRepoPath/PowerShellEditorServices.build.ps1"
+    }
+}
+
+task Restore -If { "Restore" -in $BuildTasks -or !(Test-Path "./node_modules") } -Before Build {
+    Write-Host "`n### Restoring vscode-powershell dependencies, this could take a while`n" -ForegroundColor Green
+    exec { & npm install }
+}
+
+task Clean {
+    if ($script:psesBuildScriptPath) {
+        Write-Host "`n### Cleaning PowerShellEditorServices`n" -ForegroundColor Green
+        Invoke-Build Clean $script:psesBuildScriptPath
+    }
+
+    Write-Host "`n### Cleaning vscode-powershell`n" -ForegroundColor Green
+    Remove-Item .\out -Recurse -Force -ErrorAction Ignore
+}
+
+task Build {
+
+    # If the PSES codebase is co-located, build it first
+    if ($script:psesBuildScriptPath) {
+        Write-Host "`n### Building PowerShellEditorServices`n" -ForegroundColor Green
+        Invoke-Build BuildHost $script:psesBuildScriptPath
+    }
+
+    Write-Host "`n### Building vscode-powershell" -ForegroundColor Green
+    exec { & npm run compile }
+}
+
+task . Clean, Build