Detect whether script is running in the context of Buildbot

Question

Can a script that may be run by Buildbot's ShellCommand detect whether it is indeed running inside the context of Buildbot (e.g. as opposed to having been started manually in a shell)?

For instance, does Buildbot set any environment variables (such as GitLab's CI_JOB_STAGE that the script could inspect?

I am looking for a well-portable solution, so setting a proprietary environment variable e.g. at the level of some Buildbot builders or inspecting the script's parent process is not quite what I am looking for.

Answer 1

At least, it can detect if it is in an interactive session (when launched manually) vs. launched non-interactively (from a script or, in this instance, buildbox builder).
In a bash session, $- would display the current options set for the shell.

Change you job to include a call to your script with:

scriptshell=$- ./myscript.sh

In your script:

if [[ ${scriptshell} != *i* ]]; then
    echo "non-interractive (script)"
else
    echo "interractive (manual launch)
fi