TeamCity :: How can I access teamcity build ID in Java

Question

Teamcity Build ID (which is different from BUILD_NUMBER) is used in various URLs. I want to send an email having path of a build's artifacts/ overview etc.

In Java, we can get currently running teamcity build number as follows:

String tc_BuildNumber = System.getenv("BUILD_NUMBER");

This is because TC provides an environment variable namely BUILD_NUMBER. But unfortunately, there is no environment variable corresponding to BUILD_ID.

TeamCity does provide Configuration parameters (like teamcity.build.id) and System property (like system.teamcity.auth.userId) but I don't know how to access these using Java. I want to read the value of teamCity.build.id jusy like we can read environment variables names mentioned in How to fetch the Value of Teamcity Configuration in java?

Answer 1

Are you executing the java code using a build runner?

If so, then you should be able to pass %system.teamcity.build.id% to the runner, and make it available to your code.

i.e. If you're using the command line runner

java -Dbuild_id=%system.teamcity.build.id%

which you can then access as system arguments

Or if you're using gradle, you can do something like

if (project.hasProperty("teamcity")) {
    version = project.teamcity["teamcity.build.id"]
}

and pass 'version' to the java command line.

In maven, you can just access it using:

${teamcity.build.id}

in your pom.xml

(I could do with a little more info about how you're running java to answer this specifically)

Answer 2

I've noticed that lots of people want to know the answer to this question. Fortunately with the help of comment from @Jayan I was able to do solve my exact problem which was how to get URL for build artifacts.

As mentioned in link https://confluence.jetbrains.com/display/TCD10/Patterns+For+Accessing+Build+Artifacts, by default, TeamCity uses Internal Build ID for the path that can be used to access build artifacts:

/repository/download/BUILD_TYPE_EXT_ID/BUILD_ID:id/ARTIFACT_PATH

Accessing build Id could be difficult in the runtime(That is the reason of this question), but we can also use Build Number to access artifacts

/repository/download/BUILD_TYPE_EXT_ID/BUILD_NUMBER/ARTIFACT_PATH

And as shown in my question build number can be accessed as

String BUILD_NUMBER= System.getenv("BUILD_NUMBER");

and

String BUILD_TYPE_EXT_ID = System.getenv("TEAMCITY_BUILDCONF_NAME");