Polish Windows installer output

Author: mbv06

install-windows.ps1

@@ -56,6 +56,19 @@ function Wait-BeforeExit {
     }
 }
 
+function Write-SummaryLine {
+    param(
+        [Parameter(Mandatory = $true)]
+        [string]$Label,
+
+        [Parameter(Mandatory = $true)]
+        [string]$Value
+    )
+
+    Write-Host ("  {0,-12}" -f $Label) -ForegroundColor Cyan -NoNewline
+    Write-Host " $Value"
+}
+
 function Format-CommandForDisplay {
     param(
         [Parameter(Mandatory = $true)]
@@ -91,8 +104,22 @@ function Invoke-NativeCommand {
     )
 
     Write-Host ("Running: {0}" -f (Format-CommandForDisplay -FilePath $FilePath -Arguments $Arguments)) -ForegroundColor DarkGray
-    $output = & $FilePath @Arguments 2>&1
-    $exitCode = $LASTEXITCODE
+
+    $hadNativePreference = Test-Path variable:PSNativeCommandUseErrorActionPreference
+    if ($hadNativePreference) {
+        $previousNativePreference = $PSNativeCommandUseErrorActionPreference
+        $PSNativeCommandUseErrorActionPreference = $false
+    }
+
+    try {
+        $output = & $FilePath @Arguments 2>&1
+        $exitCode = $LASTEXITCODE
+    }
+    finally {
+        if ($hadNativePreference) {
+            $PSNativeCommandUseErrorActionPreference = $previousNativePreference
+        }
+    }
 
     if ($output) {
         foreach ($line in @($output)) {
@@ -208,7 +235,6 @@ then run this installer again.
     $venvPython = Join-Path $ScriptsDir 'python.exe'
 
     Log 'Installing / upgrading Slicer URI Bridge'
-    Invoke-NativeCommand -FilePath $venvPython -Arguments @('-m', 'pip', 'install', '--upgrade', 'pip') -FailureMessage 'Failed to upgrade pip.' | Out-Null
     Invoke-NativeCommand -FilePath $venvPython -Arguments @('-m', 'pip', 'install', '--upgrade', $ProjectSpec) -FailureMessage 'pip install failed.' | Out-Null
 
     Log 'Adding Scripts directory to user PATH'
@@ -228,20 +254,18 @@ then run this installer again.
 
     $configDir = Join-Path $env:APPDATA 'slicer-uri-bridge'
 
-    Write-Host @"
-
-Done! Slicer URI Bridge is installed.
-
-  Command:      slicer-uri-bridge
-  Config:       $configDir\config.toml
-  Logs:         $configDir\bridge.log
-  Test:         slicer-uri-bridge test
-  Environment:  $VenvDir
-
-  If "slicer-uri-bridge" is not found, open a new terminal window.
-  To update later, just run this installer again.
-
-"@
+    Write-Host ''
+    Write-Host 'Done! Slicer URI Bridge is installed.' -ForegroundColor Green
+    Write-Host ''
+    Write-SummaryLine -Label 'Command:' -Value 'slicer-uri-bridge'
+    Write-SummaryLine -Label 'Config:' -Value "$configDir\config.toml"
+    Write-SummaryLine -Label 'Logs:' -Value "$configDir\bridge.log"
+    Write-SummaryLine -Label 'Test:' -Value 'slicer-uri-bridge test'
+    Write-SummaryLine -Label 'Environment:' -Value $VenvDir
+    Write-Host ''
+    Write-Host '  If "slicer-uri-bridge" is not found, open a new terminal window.' -ForegroundColor DarkGray
+    Write-Host '  To update later, just run this installer again.' -ForegroundColor DarkGray
+    Write-Host ''
 }
 
 try {