From 7673c4e90f9aa474bde85f1286de5223b9001548 Mon Sep 17 00:00:00 2001
From: Andrew Schwartzmeyer <andschwa@microsoft.com>
Date: Fri, 4 Mar 2016 12:11:01 -0800
Subject: [PATCH] Add Microsoft.PowerShell.Platform module

- Exports the IsCore, IsLinux, IsOSX, and IsWindows variables
- Imported by the default PSL profile
- Can be used automatically in Pester tests and Open PowerShell sessions
- Should maybe become a default module once it is polished
- PowerShellGitHubDev module does not explicitly use it because on
  FullCLR PowerShell (normal Windows development) it will not be
  imported automatically
---
 PowerShellGitHubDev.psm1                      |  31 ++++++++++--------
 .../Microsoft.PowerShell.Platform.psd1        | Bin 0 -> 6700 bytes
 .../Microsoft.PowerShell.Platform.psm1        |  18 ++++++++++
 .../PSL_profile.ps1                           |   2 ++
 4 files changed, 37 insertions(+), 14 deletions(-)
 create mode 100644 src/Microsoft.PowerShell.Linux.Host/Modules/Microsoft.PowerShell.Platform/Microsoft.PowerShell.Platform.psd1
 create mode 100644 src/Microsoft.PowerShell.Linux.Host/Modules/Microsoft.PowerShell.Platform/Microsoft.PowerShell.Platform.psm1

diff --git a/PowerShellGitHubDev.psm1 b/PowerShellGitHubDev.psm1
index 33b6a6540b..0f28bb92b6 100644
--- a/PowerShellGitHubDev.psm1
+++ b/PowerShellGitHubDev.psm1
@@ -1,17 +1,20 @@
 # Use the .NET Core APIs to determine the current platform; if a runtime
 # exception is thrown, we are on FullCLR, not .NET Core.
 #
-# TODO: use PowerShell to check OS when available
+# TODO: import Microsoft.PowerShell.Platform instead
 try {
     $Runtime = [System.Runtime.InteropServices.RuntimeInformation]
     $OSPlatform = [System.Runtime.InteropServices.OSPlatform]
-    $Linux = $Runtime::IsOSPlatform($OSPlatform::Linux)
-    $OSX = $Runtime::IsOSPlatform($OSPlatform::OSX)
-    $Windows = $Runtime::IsOSPlatform($OSPlatform::Windows)
+
+    $IsCore = $true
+    $IsLinux = $Runtime::IsOSPlatform($OSPlatform::Linux)
+    $IsOSX = $Runtime::IsOSPlatform($OSPlatform::OSX)
+    $IsWindows = $Runtime::IsOSPlatform($OSPlatform::Windows)
 } catch [System.Management.Automation.RuntimeException] {
-    $Linux = $false
-    $OSX = $false
-    $Windows = $true
+    $IsCore = $false
+    $IsLinux = $false
+    $IsOSX = $false
+    $IsWindows = $true
 }
 
 function Start-PSBuild
@@ -32,15 +35,15 @@ function Start-PSBuild
         dotnet restore $PSScriptRoot
     }
 
-    if ($Linux -Or $OSX) {
-        $InstallCommand = if ($Linux) { "apt-get" } elseif ($OSX) { "brew" }
+    if ($IsLinux -Or $IsOSX) {
+        $InstallCommand = if ($IsLinux) { "apt-get" } elseif ($IsOSX) { "brew" }
         foreach ($Dependency in "cmake", "g++") {
             if (-Not (Get-Command $Dependency -ErrorAction SilentlyContinue)) {
                 throw "Build dependency '$Dependency' not found in PATH! Run '$InstallCommand install $Dependency'"
             }
         }
 
-        $Ext = if ($Linux) { "so" } elseif ($OSX) { "dylib" }
+        $Ext = if ($IsLinux) { "so" } elseif ($IsOSX) { "dylib" }
         $Native = "$PSScriptRoot/src/libpsl-native"
         $Lib = "$Native/src/libpsl-native.$Ext"
         Write-Host "Building $Lib"
@@ -61,8 +64,8 @@ function Start-PSBuild
     Write-Host "Building PowerShell"
 
     $Configuration =
-        if ($Linux -Or $OSX) { "Linux" }
-        elseif ($Windows) { "Debug" }
+        if ($IsLinux -Or $IsOSX) { "Linux" }
+        elseif ($IsWindows) { "Debug" }
 
     dotnet publish -o $Output -c $Configuration -f "netstandardapp1.5" $Top
 }
@@ -77,7 +80,7 @@ function Start-PSPackage
         [int]$Iteration = 1
     )
 
-    if ($Windows) { throw "Building Windows packages is not yet supported!" }
+    if ($IsWindows) { throw "Building Windows packages is not yet supported!" }
 
     if (-Not (Get-Command "fpm" -ErrorAction SilentlyContinue)) {
         throw "Build dependency 'fpm' not found in PATH! See: https://github.com/jordansissel/fpm"
@@ -91,7 +94,7 @@ function Start-PSPackage
     chmod -R go=u "$PSScriptRoot/bin"
 
     # Decide package output type
-    $Output = if ($Linux) { "deb" } elseif ($OSX) { "osxpkg" }
+    $Output = if ($IsLinux) { "deb" } elseif ($IsOSX) { "osxpkg" }
 
     # Use Git tag if not given a version
     if (-Not($Version)) {
diff --git a/src/Microsoft.PowerShell.Linux.Host/Modules/Microsoft.PowerShell.Platform/Microsoft.PowerShell.Platform.psd1 b/src/Microsoft.PowerShell.Linux.Host/Modules/Microsoft.PowerShell.Platform/Microsoft.PowerShell.Platform.psd1
new file mode 100644
index 0000000000000000000000000000000000000000..29fc928a0522e0dae721cfc1553eda8d914ae826
GIT binary patch
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diff --git a/src/Microsoft.PowerShell.Linux.Host/Modules/Microsoft.PowerShell.Platform/Microsoft.PowerShell.Platform.psm1 b/src/Microsoft.PowerShell.Linux.Host/Modules/Microsoft.PowerShell.Platform/Microsoft.PowerShell.Platform.psm1
new file mode 100644
index 0000000000..ae96168749
--- /dev/null
+++ b/src/Microsoft.PowerShell.Linux.Host/Modules/Microsoft.PowerShell.Platform/Microsoft.PowerShell.Platform.psm1
@@ -0,0 +1,18 @@
+# Use the .NET Core APIs to determine the current platform; if a runtime
+# exception is thrown, we are on FullCLR, not .NET Core.
+try {
+    $Runtime = [System.Runtime.InteropServices.RuntimeInformation]
+    $OSPlatform = [System.Runtime.InteropServices.OSPlatform]
+
+    $IsCore = $true
+    $IsLinux = $Runtime::IsOSPlatform($OSPlatform::Linux)
+    $IsOSX = $Runtime::IsOSPlatform($OSPlatform::OSX)
+    $IsWindows = $Runtime::IsOSPlatform($OSPlatform::Windows)
+} catch [System.Management.Automation.RuntimeException] {
+    $IsCore = $false
+    $IsLinux = $false
+    $IsOSX = $false
+    $IsWindows = $true
+}
+
+Export-ModuleMember -Variable IsCore, IsLinux, IsOSX, IsWindows
diff --git a/src/Microsoft.PowerShell.Linux.Host/PSL_profile.ps1 b/src/Microsoft.PowerShell.Linux.Host/PSL_profile.ps1
index de4c4f2da7..959f832bac 100644
--- a/src/Microsoft.PowerShell.Linux.Host/PSL_profile.ps1
+++ b/src/Microsoft.PowerShell.Linux.Host/PSL_profile.ps1
@@ -1,3 +1,5 @@
 function prompt {
    "PS " + $(get-location) + "> "
 }
+
+Import-Module Microsoft.PowerShell.Platform