RunStyleCop.ps1

param([switch]$verbose, [switch]$v)
$TeamCity = $env:TEAMCITY_PROJECT_NAME

# read list of files to ignore
$ignoredFiles = @{}
$filesWithoutIssues = @{}
Get-Content .\StyleCop.IgnoredFiles.txt | % {
    if (Test-Path($_))
    {
        $item = Get-ChildItem $_
        $ignoredFiles[$item.FullName.ToLower()] = $true

        # assume all files have issues
        $filesWithoutIssues[$item.FullName.ToLower()] = $_
    }
    else
    {
        if ($TeamCity)
        {
            Write-Host "##teamcity[message text='$($_) does not exist, remove from StyleCop.IgnoreFiles.txt']"
        }
        else
        {
            Write-Host $_ 'does not exist, remove from StyleCop.IgnoreFiles.txt'
        }
    }
}

if ($TeamCity)
{
    Write-Host "##teamcity[message text='Running StyleCop...']"
    Write-Host "##teamcity[message text='$($ignoredFiles.Count) files excluded by ignore list']"

    $issueCount = 0
    $command = "C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe StyleCop.build /nologo /verbosity:m /p:StyleCopMaxViolationCount=50000"
    $issues = Invoke-Expression -Command $command
    $totalIssueCount = $issues.length
    $groupedIssues = $issues | group { $_ -replace "\(.*", "" }
    $filteredIssues = $groupedIssues | where { $ignoredFiles.ContainsKey($_.Name.ToLower()) -eq $false }

    # exclude files with issues from $filesWithoutIssues
    $issues | % { $_ -replace "\(.*", "" } | % { $filesWithoutIssues.Remove($_.ToLower()) }
    foreach ($issue in $filteredIssues)
    {
        $blockName = $issue.Name
        Write-Host "##teamcity[blockOpened name='$($blockName)']"

        foreach ($item in $issue.Group | % { $null = $_ -match '.*(?<filename>dev\\src\\Order.*)\((?<line>\d*),.*\): warning : (?<warning>SA\d{4}.*) \[.*\]'; $matches })
        {
            $issueCount = $issueCount + 1
            $message = "$($item.filename)($($item.line)): $($item.warning -replace "'", "|'")"
            Write-Host "##teamcity[message text='$($message)' status='ERROR']"
            Write-Host "##teamcity[buildProblem description='$($message)']"
        }

        Write-Host "##teamcity[blockClosed name='$($blockName)']"
    }

    if ($issueCount -gt 0)
    {
        Write-Host "##teamcity[buildStatus status='FAILURE' text='$($issueCount) StyleCop issues detected']"
    }
    else
    {
        Write-Host "##teamcity[buildStatus status='SUCCESS' text='$($issueCount) StyleCop issues detected']"
    }

    Write-Host "##teamcity[buildStatisticValue key='StyleCopWarnings' value='$($totalIssueCount)']"

    if ($filesWithoutIssues.Count -ne 0)
    {
        Write-Host "Remove these files from ignore list, they do not contain any issues and should be included in analysis for the future"
        $filesWithoutIssues.Values | sort | % { Write-Host $_ }
    }

    $lowHangingFruits = $groupedIssues | where { $_.Count -le 1 }
    $lowHangingFruitsLimited = $lowHangingFruits | Sort-Object Count, Name | select -first 100
    if ($lowHangingFruitsLimited.Count -gt 0)
    {
        Write-Host "Low hanging fruits (first $($lowHangingFruitsLimited.Count) of $($lowHangingFruits.Count) files with 1 or less issues):"
        $lowHangingFruitsLimited | % {
            $null = $_.Name -match '.*(?<filename>dev\\src\\Order.*)'
            Write-Host $Matches.filename, $_.Count
        }
    }
}
else
{
    MODE CON COLS=160 LINES=60
    cls
    Write-Host "Running StyleCop..."
    $command = "C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe StyleCop.build /nologo /verbosity:m /p:StyleCopMaxViolationCount=50000"

    $filesWithErrors = Invoke-Expression -Command $command | group { $_ -replace "\(.*$", "" } | where { $ignoredFiles.ContainsKey($_.Name.ToLower()) -eq $false }

    if ($filesWithErrors.length -eq 0)
    {
        Write-Host "No style errors were reported."
    }

    foreach ($file in $filesWithErrors)
    {
        Write-Host -NoNewline "File "
        Write-Host -NoNewLine $file.Name -ForegroundColor Yellow
        Write-Host -NoNewLine " reported "
        Write-Host -NoNewLine $file.Count
        Write-Host " error(s)."
        if ($verbose -or $v)
        {
            Write-Host "    Detailed breakdown:"
            foreach ($styleErrorInfo in $file.Group | sort)
            {
                $justStyleErrorAndLocation = $styleErrorInfo -replace "^.*\.cs", "" -replace "\[.*$", ""
                Write-Host -NoNewLine "        "
                Write-Host $justStyleErrorAndLocation
            }
        }
    }
}