In Hudson, how do I get the current build's git commit sha?

Question

We are using Hudson with git. We have a build/test server which compiles our project and then a QA server to which we need to deploy.

We want to get the current built git commit sha and use it to pull the appropriate commit for deployment on our QA server.

Unfortunately it seems that the hudon git plugin does not set the git commit sha in the environment variables (as the svn plugin does in SVN_REVISION for example). How do we get around this?

Pointer/ examples will be helpful as I am a hudson noob.

Thanks

Answer 1

I added to Post build command:

env

In log I found all environment variables. Some of them are:

BUILD_TAG=jenkins-Datagen-17 JOB_URL=http://jenkins:18080/job/Datagen/ USER=jenkins GIT_COMMIT=ce9a3c1404e8c91be604088670e93434c4253f03 JENKINS_HOME=/var/lib/jenkins JOB_NAME=Datagen BUILD_ID=2011-06-22_15-26-06 GIT_BRANCH=master EXECUTOR_NUMBER=0 NODE_LABELS=master LOGNAME=jenkins NODE_NAME=master BUILD_NUMBER=17 

Answer 2

Jenkins Version: 2.46.2

Git Client: 2.4.5

The following GIT variables are available by running the env command from a shell.

• GIT_BRANCH
• GIT_COMMIT
• GIT_PREVIOUS_COMMIT
• GIT_PREVIOUS_SUCCESSFUL_COMMIT
• GIT_URL

So, to inject them back into the Job's environment variables add the word env to the Script Content section...

tl;dr

Job > Configure > Build Environment > Inject environment variables to the build process > Script Content