include parameter to skip install attempt

Author: jaredfholgate

src/ALZ/Private/Tools/Test-Tooling.ps1

@@ -4,7 +4,9 @@ function Test-Tooling {
         [Parameter(Mandatory = $false)]
         [switch]$skipAlzModuleVersionCheck,
         [Parameter(Mandatory = $false)]
-        [switch]$checkYamlModule
+        [switch]$checkYamlModule,
+        [Parameter(Mandatory = $false)]
+        [switch]$skipYamlModuleInstall
     )
 
     $checkResults = @()
@@ -212,6 +214,13 @@ function Test-Tooling {
                 message = "powershell-yaml module is installed (version $($yamlModule.Version))."
                 result  = "Success"
             }
+        } elseif ($skipYamlModuleInstall.IsPresent) {
+            Write-Verbose "powershell-yaml module is not installed, skipping installation attempt"
+            $checkResults += @{
+                message = "powershell-yaml module is not installed. Please install it using 'Install-PSResource powershell-yaml -Scope $currentScope'."
+                result  = "Failure"
+            }
+            $hasFailure = $true
         } else {
             Write-Verbose "powershell-yaml module is not installed, attempting installation"
             $installResult = Install-PSResource powershell-yaml -TrustRepository -Scope $currentScope 2>&1

src/ALZ/Public/Deploy-Accelerator.ps1

@@ -162,6 +162,13 @@ function Deploy-Accelerator {
         [Alias("skipAlzModuleVersionRequirementsCheck")]
         [switch] $skip_alz_module_version_requirements_check,
 
+        [Parameter(
+            Mandatory = $false,
+            HelpMessage = "[OPTIONAL] Determines whether to skip attempting to install the powershell-yaml module if it is not installed."
+        )]
+        [Alias("skipYamlModuleInstall")]
+        [switch] $skip_yaml_module_install,
+
         [Parameter(
             Mandatory = $false,
             HelpMessage = "[OPTIONAL] Determines whether Clean the bootstrap folder of Terraform meta files. Only use for development purposes."
@@ -204,7 +211,7 @@ function Deploy-Accelerator {
         Write-InformationColored "WARNING: Skipping the software requirements check..." -ForegroundColor Yellow -InformationAction Continue
     } else {
         Write-InformationColored "Checking the software requirements for the Accelerator..." -ForegroundColor Green -InformationAction Continue
-        Test-Tooling -skipAlzModuleVersionCheck:$skip_alz_module_version_requirements_check.IsPresent -checkYamlModule:$hasYamlFiles
+        Test-Tooling -skipAlzModuleVersionCheck:$skip_alz_module_version_requirements_check.IsPresent -checkYamlModule:$hasYamlFiles -skipYamlModuleInstall:$skip_yaml_module_install.IsPresent
     }
 
     Write-InformationColored "Getting ready to deploy the accelerator with you..." -ForegroundColor Green -NewLineBefore -InformationAction Continue