migrate the mac offical binary build to VSTS mac hosted preview (#6363)

create a PowerShellPackage...ps1 that works with these VMs (vs our custom VM)
create a script to create the \powershell folder with correct permissions
a YML VSTS build definition

tools/releaseBuild/macOS/PowerShellPackageVsts.ps1

@@ -0,0 +1,96 @@
+# Copyright (c) Microsoft Corporation. All rights reserved.
+# Licensed under the MIT License.
+
+# PowerShell Script to build and package PowerShell from specified form and branch
+# Script is intented to use in Docker containers
+# Ensure PowerShell is available in the provided image
+
+param (
+    # Set default location to where VSTS cloned the repository locally.
+    [string] $location = $env:BUILD_REPOSITORY_LOCALPATH,
+
+    # Destination location of the package on docker host
+    [Parameter(Mandatory, ParameterSetName = 'Build')]
+    [string] $destination = '/mnt',
+
+    [Parameter(Mandatory, ParameterSetName = 'Build')]
+    [ValidatePattern("^v\d+\.\d+\.\d+(-\w+(\.\d+)?)?$")]
+    [ValidateNotNullOrEmpty()]
+    [string]$ReleaseTag,
+
+    [Parameter(ParameterSetName = 'Build')]
+    [ValidateSet("zip", "tar")]
+    [string[]]$ExtraPackage,
+
+    [Parameter(Mandatory, ParameterSetName = 'Bootstrap')]
+    [switch] $BootStrap,
+
+    [Parameter(Mandatory, ParameterSetName = 'Build')]
+    [switch] $Build
+)
+
+# We must build in /PowerShell
+$repoRoot = '/PowerShell'
+if ($BootStrap.IsPresent) {
+    $repoRoot = $location
+}
+
+if ($Build.IsPresent) {
+    # cleanup the folder but don't delete it or the build agent will loose ownership of the folder
+    Write-Verbose -Message "cleaning /PowerShell" -Verbose
+    Get-ChildItem -Path /PowerShell/* -Attributes Hidden, Normal, Directory | Remove-Item -Recurse -Force
+
+    # clone the repository to the location we must build from
+    Write-Verbose -Message "cloning to /PowerShell" -Verbose
+    git clone $location /PowerShell
+    $releaseTagParam = @{}
+    if ($ReleaseTag) {
+        $releaseTagParam = @{ 'ReleaseTag' = $ReleaseTag }
+    }
+}
+
+
+Push-Location
+try {
+    Write-Verbose -Message "Init..." -Verbose
+    Set-Location $repoRoot
+    git submodule update --init --recursive --quiet
+    Import-Module "$repoRoot/build.psm1"
+    Import-Module "$repoRoot/tools/packaging"
+    Sync-PSTags -AddRemoteIfMissing
+
+    if ($BootStrap.IsPresent) {
+        Start-PSBootstrap -Package
+
+        # The gem install is run by bootstrap without sudo and fails on macOS.
+        # Run the commands with sudo, to resolve the issue
+        Write-Verbose -Message "Installing fpm..." -Verbose
+        Start-NativeExecution { sudo gem install fpm -v 1.8.1 }
+        Write-Verbose -Message "Installing ronn..." -Verbose
+        Start-NativeExecution { sudo gem install ronn }
+    }
+
+    if ($Build.IsPresent) {
+        Start-PSBuild -Crossgen -PSModuleRestore @releaseTagParam
+
+        Start-PSPackage @releaseTagParam
+        switch ($ExtraPackage) {
+            "tar" { Start-PSPackage -Type tar @releaseTagParam }
+        }
+    }
+} finally {
+    Pop-Location
+}
+
+if ($Build.IsPresent) {
+    $macPackages = Get-ChildItem "$repoRoot/powershell*" -Include *.pkg, *.tar.gz
+    foreach ($macPackage in $macPackages) {
+        $filePath = $macPackage.FullName
+        $name = split-path -Leaf -Path $filePath
+        $extension = (Split-Path -Extension -Path $filePath).Replace('.', '')
+        Write-Verbose "Copying $filePath to $destination" -Verbose
+        Write-Host "##vso[artifact.upload containerfolder=results;artifactname=$name]$filePath"
+        Write-Host "##vso[task.setvariable variable=Package-$extension]$filePath"
+        Copy-Item -Path $filePath -Destination $destination -force
+    }
+}

tools/releaseBuild/macOS/PowerShellPackageVsts.sh

@@ -0,0 +1 @@
+pwsh -command ".\PowerShellPackageVsts.ps1 $*"

tools/releaseBuild/macOS/createPowerShell.sh

@@ -0,0 +1,8 @@
+# print version for diags
+sw_vers -productVersion
+
+# create folder
+sudo mkdir /PowerShell
+
+# make the current user the owner
+sudo chown $USER /PowerShell

tools/releaseBuild/macOS/vsts.yml

@@ -0,0 +1,30 @@
+steps:
+#- task: <task type name>@<version>
+#  inputs:
+#    <task specific inputs>
+#  displayName: '<display name of task>'
+- task: ShellScript@2
+  inputs:
+    scriptPath: 'tools/releaseBuild/setReleaseTag.sh'
+    args: '-ReleaseTag $(ReleaseTagVar) -Variable "ReleaseTagVar"'
+  displayName: 'Calculate Release Tag'
+- task: ShellScript@2
+  inputs:
+    scriptPath: 'tools/installpsh-osx.sh'
+  displayName: 'Install pwsh'
+- task: ShellScript@2
+  inputs:
+    scriptPath: 'tools/releaseBuild/macOS/createPowerShell.sh'
+  displayName: 'Create /PowerShell'
+- task: ShellScript@2
+  inputs:
+    scriptPath: 'tools/releaseBuild/macOS/PowerShellPackageVsts.sh'
+    args: '-location $(Build.SourcesDirectory) -BootStrap'
+  displayName: 'Bootstrap VM'
+- task: ShellScript@2
+  inputs:
+    scriptPath: 'tools/releaseBuild/macOS/PowerShellPackageVsts.sh'
+    args: '-ReleaseTag $(ReleaseTagVar) -Destination $(System.ArtifactsDirectory) -ExtraPackage "tar" -location $(Build.SourcesDirectory) -Build'
+    disableAutoCwd: true
+    cwd: 'tools/releaseBuild/macOS'
+  displayName: 'Build and Package'