fix(): Stop execution with ErrorAction (#32)

Use `-ErrorAction Stop` to terminate execution in the commandlets.

Author: donny-dont

WebKitDev/Functions/Initialize-VSEnvironment.ps1

@@ -45,8 +45,7 @@ function Initialize-VSEnvironment {
     )
 
     if (!(Test-Path $path)) {
-        Write-Error ('{0} path not found.' -f $path);
-        return;
+        Write-Error ('{0} path not found.' -f $path) -ErrorAction Stop;
     }
 
     $toolsetVersion = '';

WebKitDev/Functions/Install-FromPacman.ps1

@@ -30,8 +30,7 @@ function Install-FromPacman {
     )
     $bash = Get-Command 'bash' -ErrorAction 'SilentlyContinue';
     if ($null -eq $bash) {
-        Write-Error ('Could not find bash to use to install {0}' -f $name);
-        return
+        Write-Error ('Could not find bash to use to install {0}' -f $name) -ErrorAction Stop;
     }
 
     # Temp file for output

WebKitDev/Functions/Register-SystemPath.ps1

@@ -26,8 +26,7 @@ function Register-SystemPath {
     )
 
     if (!([System.IO.Path]::IsPathRooted($path))) {
-        Write-Error 'All system path values need to be absolute';
-        return;
+        Write-Error 'All system path values need to be absolute' -ErrorAction Stop;
     }
 
     Write-Information -MessageData ('Adding {0} to the system path' -f $path) -InformationAction Continue;

WebKitDev/Functions/Select-VSEnvironment.ps1

@@ -45,8 +45,7 @@ function Select-VSEnvironment {
             $version = 'vs2015';
         }
         else {
-            Write-Error 'Could not find a compatible Visual Studio instance';
-            return;
+            Write-Error 'Could not find a compatible Visual Studio instance' -ErrorAction Stop;
         }
     }
 
@@ -69,8 +68,7 @@ function Select-VSEnvironment {
     Write-Information -MessageData $vcvars -InformationAction Continue;
 
     if (!(Test-Path $vcvars)) {
-        Write-Error ('Could not find {0}' -f $vcvars);
-        return;
+        Write-Error ('Could not find {0}' -f $vcvars) -ErrorAction Stop;
     }
 
     Initialize-VSEnvironment -architecture $architecture -Path $vcvars;

WebKitDev/Functions/Update-XamppPerlLocation.ps1

@@ -27,8 +27,7 @@ function Update-XamppPerlLocation {
     $perlExecutable = Join-Path $perlPath (Join-Path 'perl' (Join-Path 'bin' 'perl.exe'));
 
     if (!(Test-Path $perlExecutable)) {
-        Write-Error ('perl not found at {0}' -f $perlPath);
-        return;
+        Write-Error ('perl not found at {0}' -f $perlPath) -ErrorAction Stop;
     }
 
     $registryValue = ('{0} -T' -f $perlExecutable);