git.backport

Your task

Back-port the commit given in $ARGUMENTS to a release branch using git cherry-pick. Your arguments are in the format <commit-sha> <target-branch>.

Parse $ARGUMENTS now: the first token is COMMIT_SHA, the second is TARGET_BRANCH.

Step 0 — Record the starting branch

Before touching anything, capture where the user currently is so you can return them there at the end:

git rev-parse --abbrev-ref HEAD

Store this as ORIGINAL_BRANCH. You will check out this branch at the very end, regardless of whether the backport succeeds or fails.