[CmdletBinding()]
Param(
    [Parameter(Mandatory=$True)][string] $ProjectDir
)


$ErrorActionPreference = "Stop"

$oldpwd = pwd
cd $ProjectDir -ErrorAction Stop

try {
    $CommitName = & git describe --tags
    if (-Not $?) { throw }
    $GitStatus = & git status --porcelain
    if (-Not $?) { throw }

    if ($GitStatus.Length -gt 0) {
        Write-Output "NOTE: repository has uncommitted changes!"
        $CommitName = "$($CommitName)-unclean"
    }
}
catch {
    $CommitName = "commit unknown"
    $GitStatus = "status unknown"
    Write-Output "$(">"*8) Running git failed, using default values! $("<"*8)"
}


$Date = Get-Date -Format 'yyyy-MM-dd HH:mm:ss'


$BCommit = "$($ProjectDir)\Resources\BuildCommit.txt"
$BuildDate = "$($ProjectDir)\Resources\BuildDate.txt"

Write-Output $CommitName > $BCommit
Write-Output $Date > $BuildDate

Write-Output $Date
Write-Output $CommitName

cd $oldpwd