From 6218532278e739550a43ae146efcdebf1f97eb5a Mon Sep 17 00:00:00 2001
From: Tyler Leonhardt <tylerl0706@gmail.com>
Date: Thu, 15 Feb 2018 16:08:03 -0800
Subject: [PATCH 1/3] add build.ps1

---
 build.ps1 | 121 ++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 121 insertions(+)
 create mode 100644 build.ps1

diff --git a/build.ps1 b/build.ps1
new file mode 100644
index 0000000000..69ad121d0a
--- /dev/null
+++ b/build.ps1
@@ -0,0 +1,121 @@
+#!/usr/bin/env pwsh
+param(
+    [Parameter()]
+    [switch]
+    $Bootstrap,
+
+    [Parameter()]
+    [switch]
+    $Clean,
+
+    [Parameter()]
+    [switch]
+    $Test
+)
+
+$NeededTools = @{
+    VSCode = "Visual Studio Code"
+    NodeJS = "Node.js 6.0 or higher"
+    PowerShellGet = "PowerShellGet latest"
+    InvokeBuild = "InvokeBuild latest"
+}
+
+if ((-not $PSVersionTable["OS"]) -or $PSVersionTable["OS"].Contains("Windows")) {
+    $OS = "Windows"
+} elseif ($PSVersionTable["OS"].Contains("Darwin")) {
+    $OS = "macOS"
+} else {
+    $OS = "Linux"
+}
+
+
+function needsVSCode () {
+    try {
+            $vscodeVersion = (code -v)
+            if (-not $vscodeVersion) {
+                Throw
+            }
+    } catch {
+        try {
+            $vscodeInsidersVersion = (code-insiders -v)
+            if (-not $vscodeInsidersVersion) {
+                Throw
+            }
+        } catch {
+            return $true
+        }
+    }
+    return $false
+}
+
+function needsNodeJS () {
+    try {
+        $nodeJSVersion = (node -v)
+
+    } catch {
+        return $true
+    }
+    return ($nodeJSVersion.Substring(1,1) -lt 6)
+}
+
+function needsPowerShellGet () {
+    if (Get-Module -ListAvailable -Name PowerShellGet) {
+        return $false
+    }
+    return $true
+}
+
+function needsInvokeBuild () {
+    if (Get-Module -ListAvailable -Name InvokeBuild) {
+        return $false
+    }
+    return $true
+}
+
+function getMissingTools () {
+    $missingTools = @()
+
+    if (needsVSCode) {
+        $missingTools += $NeededTools.VSCode
+    }
+    if (needsNodeJS) {
+        $missingTools += $NeededTools.NodeJS
+    }
+    if (needsPowerShellGet) {
+        $missingTools += $NeededTools.PowerShellGet
+    }
+    if (needsInvokeBuild) {
+        $missingTools += $NeededTools.InvokeBuild
+    }
+
+    return $missingTools
+}
+
+function hasMissingTools () {
+    return ((getMissingTools).Count -gt 0)
+}
+
+if ($Bootstrap) {
+    $string = "Here is what your environment is missing:`n"
+    $missingTools = getMissingTools
+    if (($missingTools).Count -eq 0) {
+        $string += "* nothing!`n`n Run this script without a flag to build or a -Clean to clean."
+    } else {
+        $missingTools | ForEach-Object {$string += "* $_`n"}
+        $string += "`nAll instructions for installing these tools can be found on VSCode PowerShell's Github:`n" `
+            + "https://github.com/PowerShell/vscode-powershell/blob/master/docs/development.md"
+    }
+    Write-Host "`n$string`n"
+} elseif(hasMissingTools) {
+    Write-Host "You are missing needed tools. Run './build.ps1 -Bootstrap' to see what they are."
+} else {
+    if($Clean) {
+        Invoke-Build Clean
+    }
+
+    Invoke-Build Build
+
+    if($Test) {
+        Invoke-Build Test
+    }
+}
\ No newline at end of file

From 53dd3a2b5c45260321d067c53bc31e5b951e947a Mon Sep 17 00:00:00 2001
From: Tyler Leonhardt <tylerl0706@gmail.com>
Date: Tue, 20 Feb 2018 08:59:21 -0800
Subject: [PATCH 2/3] travis feedback

---
 build.ps1 | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/build.ps1 b/build.ps1
index 69ad121d0a..699f7fe1b5 100644
--- a/build.ps1
+++ b/build.ps1
@@ -1,4 +1,7 @@
 #!/usr/bin/env pwsh
+# Copyright (c) Microsoft Corporation. All rights reserved.
+# Licensed under the MIT License.
+
 param(
     [Parameter()]
     [switch]
@@ -118,4 +121,4 @@ if ($Bootstrap) {
     if($Test) {
         Invoke-Build Test
     }
-}
\ No newline at end of file
+}

From e36b794176630da48ba13c19bf2ed4b5b5a1b5a0 Mon Sep 17 00:00:00 2001
From: Tyler Leonhardt <tylerl0706@gmail.com>
Date: Wed, 28 Feb 2018 17:02:44 -0800
Subject: [PATCH 3/3] address steve's feedback

---
 build.ps1 | 15 +++------------
 1 file changed, 3 insertions(+), 12 deletions(-)

diff --git a/build.ps1 b/build.ps1
index 699f7fe1b5..73159c40a4 100644
--- a/build.ps1
+++ b/build.ps1
@@ -3,15 +3,15 @@
 # Licensed under the MIT License.
 
 param(
-    [Parameter()]
+    [Parameter(ParameterSetName="Bootstrap")]
     [switch]
     $Bootstrap,
 
-    [Parameter()]
+    [Parameter(ParameterSetName="Build")]
     [switch]
     $Clean,
 
-    [Parameter()]
+    [Parameter(ParameterSetName="Build")]
     [switch]
     $Test
 )
@@ -23,15 +23,6 @@ $NeededTools = @{
     InvokeBuild = "InvokeBuild latest"
 }
 
-if ((-not $PSVersionTable["OS"]) -or $PSVersionTable["OS"].Contains("Windows")) {
-    $OS = "Windows"
-} elseif ($PSVersionTable["OS"].Contains("Darwin")) {
-    $OS = "macOS"
-} else {
-    $OS = "Linux"
-}
-
-
 function needsVSCode () {
     try {
             $vscodeVersion = (code -v)