Question

When i am using batch file for invoking msbuild.exe ,logging functionality works fine.

But when it is written in powershell ,it doesn’t log anything.

Following is the powershell script i am using . Any idea how to solve this?

# Script to invoke build
. ./vsvars32.ps1

Remove-Item "ViewBuild1.log"

$MsbuildBinPath="C:\Windows\Microsoft.NET\Framework\v4.0.30319"


$errorLogFileName="ViewBuild1Errors.log"
$buildLogFileName="ViewBuild1.log"

$MSBuildLogger="/flp1:Append;LogFile=ViewBuild1.log;Verbosity=Normal; /flp2:LogFile=ViewBuild1Errors.log;Verbosity=Normal;errorsonly"

$MSBuildFile="Build.Targets"

Write-Host --------------------------------------------
Write-Host Prepare for the build
Write-Host --------------------------------------------
&"$MsbuildBinPath\Msbuild.exe" $MSBuildFile "/t:Prepare"  "$MSBuildLogger"
if ($LastExitCode -ne 0) {
Write-Host "It failed, send a mail"
} 
#$LastExitCode

&"$MsbuildBinPath\Msbuild.exe" $MSBuildFile "/t:BuildAll"  "$MSBuildLogger"

Viewbuild1.log has no contents at all after executing though i have used append option in filelogger.

Answer 1

All of $MSBuildLogger is passed as a single argument to MSBuild e.g.:

PS> $MSBuildLogger="/flp1:Append;LogFile=ViewBuild1.log;Verbosity=Normal; /flp2:LogFile=ViewBuild1Errors.log;Verbosity=
Normal;errorsonly"
PS> echoargs $MSBuildLogger
Arg 0 is </flp1:Append;LogFile=ViewBuild1.log;Verbosity=Normal; /flp2:LogFile=ViewBuild1Errors.log;Verbosity=Normal;erro
rsonly>

Try using two variables instead:

PS> $MSBuildLogger1="/flp1:Append;LogFile=ViewBuild1.log;Verbosity=Normal;"
PS> $MSBuildLogger2="/flp2:LogFile=ViewBuild1Errors.log;Verbosity=Normal;errorsonly"
PS> echoargs $MSBuildLogger1 $MSBuildLogger2
Arg 0 is </flp1:Append;LogFile=ViewBuild1.log;Verbosity=Normal;>
Arg 1 is </flp2:LogFile=ViewBuild1Errors.log;Verbosity=Normal;errorsonly>

FYI, echoargs.exe is a utility from the PowerShell Community Extensions.