TeamCity dotCover report path for Sonar

It seems TeamCity 2017 no longer creates coverage_dotcover*.data files. Instead it creates *.dcvr files.

There are potentially multiple files which need to be merged before you can create the report. As a result the powershell need updating.

So using the steps provided by Oleksandr, just update the script to be:

$snapshotfiles = Get-ChildItem "%system.teamcity.build.tempDir%" `
 -recurse -Filter *.dcvr `
 | select -ExpandProperty Name

$snapshots = $snapshotfiles -join ";"

%teamcity.dotCover.home%\dotCover.exe merge /Source=$snapshots 
/Output=dotcovermerge.dcvr

%teamcity.dotCover.home%\dotCover.exe report `
/ReportType=HTML /Source=dotcovermerge.dcvr `
/Output="%sonar.coverageReport%"

Then the property %sonar.coverageReport% can be passed to the sonarqube scanner. Btw, you need to create a parameter in TC for %sonar.coverageReport% e.g. "sonarcoverage.html"

Spent some amount of time on the same issue, but with newer Sonar c# plugin (v.2.3) - Gallio support has been dropped, but the report is still required.

To answer the question directly, TeamCity puts dotcover snapshot file into a temp folder with a name like coverage_dotcover27574681205420364801.data (where digits are random). So

The procedure is:

1. Create a PowerShell Build step in Team City after the step with test and coverage
   • you may use Command line if you prefer
2. Get the full dotCover snapshot name in temp folder
3. Run dotCover to produce a HTML report from a snapshot
   • Note - Sonar (c# plugin v 2.3) supports only dotCover HTML reports
4. Pass the produced HTML report to sonar

PowerShell script:

$snapshot = Get-ChildItem "%system.teamcity.build.tempDir%" `
     -Filter coverage_dotcover*.data `
     | select -ExpandProperty FullName -First 1

%teamcity.dotCover.home%\dotCover.exe report `
    /ReportType=HTML /Source="$snapshot" `
    /Output="%sonar.coverageReport%"

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Now you can specify your report in sonnar runner as sonar.cs.dotcover.reportsPaths='%sonar.coverageReport%'

Where %sonar.coverageReport% is a defined property in a TeamCity