With the now open sourced github/docs, we have run into at least one situation where this Action arguably should've failed but did not. The situation was due to a misconfiguration on our part after we renamed our default branch from master to main but hadn't yet updated the branch name used in our Actions workflows.

Example failure: https://github.com/github/docs/runs/1123997453?check_suite_focus=true

This particular failure arose from the current line 36 in the entrypoint.sh script:

Having set -e enabled as you do is a great practice but there are often other options to consider adding, especially -o pipefail. Without it, failing exit codes from command that are piped into other commands do not cause the script to exit. 😭

From the Bash manual:

pipefail
If set, the return value of a pipeline is the value of the last (rightmost) command to exit with a non-zero status, or zero if all commands in the pipeline exit successfully. This option is disabled by default.

cc @chiedo