How to find logs from bazel's previous runs

Question

I'm interested in seeing if bazel ran in the recent past. Where can I find general logging for past bazel build/run/fetch (maybe somewhere in /var/log)?

Answer 1

You can find logs in the output base for the workspace, which for Linux is typically $HOME/.cache/bazel/_bazel_$USER/<MD5 sum of workspace path>/

You can find the output base for a workspace by running bazel info output_base in that workspace. Note though that there's a command.log file which contains the output of the last command, and bazel info is itself a command, so that will overwrite command.log. You can do echo -n $(pwd) | md5sum in a bazel workspace to get the md5, or find the README files in the output base directories which say what workspace each is for.