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Fix web.config patch: use XPath instead of property navigation

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Property-path navigation returns an empty string when the <location>
wrapper is absent from the published web.config, causing AppendChild
to fail. SelectSingleNode("//aspNetCore") works regardless of structure.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
This commit is contained in:
Scott Pouliot
2026-04-24 17:25:50 -04:00
parent 8d94013895
commit 813f76138c
1 changed files with 12 additions and 6 deletions
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@@ -68,24 +68,30 @@ pipeline {
powershell ''' powershell '''
$path = "C:\\inetpub\\wwwroot\\web.config" $path = "C:\\inetpub\\wwwroot\\web.config"
$xml = [xml](Get-Content $path) $xml = [xml](Get-Content $path)
$aspNetCore = $xml.configuration.location.'system.webServer'.aspNetCore
# Use XPath so the structure (with or without <location> wrapper) doesn't matter
$aspNetCore = $xml.SelectSingleNode("//aspNetCore")
if ($null -eq $aspNetCore) {
Write-Error "Could not find aspNetCore element in web.config"
exit 1
}
# Ensure environmentVariables element exists # Ensure environmentVariables element exists
if (-not $aspNetCore.environmentVariables) { $envVarsNode = $aspNetCore.SelectSingleNode("environmentVariables")
if ($null -eq $envVarsNode) {
$envVarsNode = $xml.CreateElement("environmentVariables") $envVarsNode = $xml.CreateElement("environmentVariables")
$aspNetCore.AppendChild($envVarsNode) | Out-Null $aspNetCore.AppendChild($envVarsNode) | Out-Null
} }
# Remove existing ASPNETCORE_ENVIRONMENT entry if present # Remove existing ASPNETCORE_ENVIRONMENT entry if present
$existing = $aspNetCore.environmentVariables.environmentVariable | $existing = $envVarsNode.SelectSingleNode("environmentVariable[@name='ASPNETCORE_ENVIRONMENT']")
Where-Object { $_.name -eq "ASPNETCORE_ENVIRONMENT" } if ($existing) { $envVarsNode.RemoveChild($existing) | Out-Null }
if ($existing) { $aspNetCore.environmentVariables.RemoveChild($existing) | Out-Null }
# Add fresh entry # Add fresh entry
$envVar = $xml.CreateElement("environmentVariable") $envVar = $xml.CreateElement("environmentVariable")
$envVar.SetAttribute("name", "ASPNETCORE_ENVIRONMENT") $envVar.SetAttribute("name", "ASPNETCORE_ENVIRONMENT")
$envVar.SetAttribute("value", "Development") $envVar.SetAttribute("value", "Development")
$aspNetCore.environmentVariables.AppendChild($envVar) | Out-Null $envVarsNode.AppendChild($envVar) | Out-Null
$xml.Save($path) $xml.Save($path)
Write-Host "web.config patched: ASPNETCORE_ENVIRONMENT=Development" Write-Host "web.config patched: ASPNETCORE_ENVIRONMENT=Development"