Is there a way to get build status as a property? - build

Question

I have a ugly Teamcity build configuration using MSBuild. It executes custom application (test runner), which is using custom messaging to report test results to teamcity.
##teamcity[testStarted name='test1']
##teamcity[testFailed name='test1' message='failure message' details='message and stack trace']
Which show in teamcity in build overview and tests tab.
Teamcity recognizes failed tests and if any test fails, it marks the build as failed:
http://i.stack.imgur.com/Qz9UT.png
Later in the MSBuild target I would like to label cvs based on the test results.
Is there a way to get the build status (if it is failed, hanging, warning) as a property? something like %build.status%? The format does not matter - if its a string or number.
PS: I know that best solution to my problem would be to modify the application to return non-zero exit code if test fail.

Answer 1

TeamCty does not seem to expose this directly, but the status can be acquired using the REST api. Here is an example using curl; but you could also uwe PowserShell's Invoke-RestMethod for instance.
Here's the msbuild script that casues test failure I used for testing:
<?xml version="1.0" encoding="utf-8"?>
<Project ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
<Target Name="Test">
<Message Importance="high" Text="##teamcity[testStarted name='test1']" />
<Message Importance="high" Text="##teamcity[testFailed name='test1' message='failure message' details='message and stack trace']" />
</Target>
</Project>
Then the script that gets the current build's status, dumps it to a file, reads the file into an msbuild item and then uses regex to get the status out of it. You just have it to supply the tc_user and tc_password properties (or allow guest access) and change the url to match your server.
<?xml version="1.0" encoding="utf-8"?>
<Project ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003" DefaultTargets="GetBuildStatus">
<Target Name="RunCurl">
<PropertyGroup>
<MyTempFile>curl_out</MyTempFile>
</PropertyGroup>
<Exec Command="curl http://localhost/httpAuth/app/rest/builds/id:$(teamcity_build_id) -basic -u $(tc_user):$(tc_password) > $(MyTempFile)"/>
<ReadLinesFromFile File="$(MyTempFile)">
<Output TaskParameter="Lines" ItemName="CurlOutput"/>
</ReadLinesFromFile>
<Delete Files="$(MyTempFile)"/>
</Target>
<Target Name="GetBuildStatus" DependsOnTargets="RunCurl">
<PropertyGroup>
<CurlOutputFull>#(CurlOutput)</CurlOutputFull>
<BuildStatus>$([System.Text.RegularExpressions.Regex]::Match($(CurlOutputFull), `status="(\w*)"`).Groups[ 1 ].Value)</BuildStatus>
</PropertyGroup>
<Message Text="BuildStatus = $(BuildStatus)"/>
</Target>
</Project>
This prints:
BuildStatus = FAILURE