Merge pull request #1256 from bergmeister/BuildWithPowerShell7

Make it possible to build ScriptAnalyzer with PowerShell7

Author: JamesWTruher

build.ps1

@@ -7,7 +7,7 @@ param(
     [switch]$All,
 
     [Parameter(ParameterSetName="BuildOne")]
-    [ValidateRange(3, 6)]
+    [ValidateRange(3, 7)]
     [int]$PSVersion = $PSVersionTable.PSVersion.Major,
 
     [Parameter(ParameterSetName="BuildOne")]
@@ -36,6 +36,12 @@ param(
     [Parameter(ParameterSetName='Bootstrap')]
     [switch] $Bootstrap
 )
+BEGIN {
+    if ($PSVersion -gt 6) {
+        # due to netstandard2.0 we do not need to treat PS version 7 differently
+        $PSVersion = 6
+    }
+}
 
 END {
     Import-Module -Force (Join-Path $PSScriptRoot build.psm1)

build.psm1

@@ -144,6 +144,8 @@ function Start-ScriptAnalyzerBuild
     param (
         [switch]$All,
 
+        # Note that 6 should also be chosen for PowerShell7 as both implement netstandard2.0
+        # and we do not use features from netstandard2.1
         [ValidateRange(3, 6)]
         [int]$PSVersion = $PSVersionTable.PSVersion.Major,