python: add installer option

If MSI checksum is set, then the builder will download the Python installer,
install Python at a temp location, then move the folder to the known
location. At the end, the Python package will be uninstalled.

Signed-off-by: Adrian Vladu <avladu@cloudbasesolutions.com>

Author: ader1990

.github/workflows/build_test_cbsinit.yml

@@ -29,7 +29,8 @@ jobs:
             -VCVars "automatic" ^
             -VSRedistDir "''" ^
             -CloudbaseInitRepoUrl ${{ matrix.cbsinit_repo }} ^
-            -CloudbaseInitRepoBranch ${{ matrix.cbsinit_branch }}
+            -CloudbaseInitRepoBranch ${{ matrix.cbsinit_branch }} ^
+            -PythonMsiChecksum "not a real checksum"
     - uses: actions/upload-artifact@v7
       with:
         name: "CloudbaseInit_${{ matrix.platform }}_${{ matrix.os }}_MSI_${{ matrix.cbsinit_branch }}"

BuildAutomation/BuildCloudbaseInitSetup.ps1

@@ -10,7 +10,8 @@ Param(
   [switch]$ClonePullInstallerRepo = $true,
   [string]$VSRedistDir = "${ENV:ProgramFiles(x86)}\Common Files\Merge Modules",
   [string]$SignTimestampUrl = "http://timestamp.digicert.com?alg=sha256",
-  [string]$VCVars="2019"
+  [string]$VCVars="2019",
+  [string]$PythonMsiChecksum = $null
 )
 
 $ErrorActionPreference = "Stop"
@@ -77,6 +78,10 @@ try
 
     $python_template_dir = join-path $cloudbaseInitInstallerDir "Python$($pythonversion.replace('.', ''))_${platform}_Template"
 
+    if ($PythonMsiChecksum) {
+        DownloadInstall-PythonMsi $platform $python_template_dir $pythonversion $PythonMsiChecksum
+    }
+
     CheckCopyDir $python_template_dir $python_dir
 
     # Make sure that we don't have temp files from a previous build