powershell wtf

gistfile1.ps1

$lastCommitMessage = (git log --pretty=format:'%B' HEAD^..HEAD)

if ($lastCommitMessage | Where-Object {$_ -Match "@(?<changesetId>\d+)"} ) {
     Write-Host  $matches["changesetId"] -ForegroundColor Red
 }

if ($lastCommitMessage -Match "@(?<changesetId>\d+)") {
    Write-Host  $matches["changesetId"] -ForegroundColor Red   
}

<#
outpusts:
1309
1309
for the message 
"
@1309 r32 created by  john  on  2004-08-24 17:28:21 -0700 (Tue, 24 Aug 2004)
Fixes for Xerces strangeness. No ITS IDs.
"
==========================================================================================#>

$lastCommitMessage = (git log --pretty=format:'%B' HEAD^..HEAD)

<#if ($lastCommitMessage | Where-Object {$_ -Match "@(?<changesetId>\d+)"} ) {
     Write-Host  $matches["changesetId"] -ForegroundColor Red
 }#>

if ($lastCommitMessage -Match "@(?<changesetId>\d+)") {
    Write-Host  $matches["changesetId"] -ForegroundColor Red   
}

<#
fails with:
Cannot index into a null array.
At c:\Dropbox\FrontRange\Work\Powershell\git\p4-sync-to-latest-changeset-that-is-in-git.ps1:8 char:26
+     Write-Host  $matches[ <<<< "changesetId"] -ForegroundColor Red
    + CategoryInfo          : InvalidOperation: (changesetId:String) [], RuntimeException
    + FullyQualifiedErrorId : NullArray
#>