Overwrite default environment variables (e.g., BUILDKITE_REPO) via pipeline upload

General
3

It does! Here is a little snippet I came up with that I put in my agent environment hook.

while IFS= read -r env_var; do
  key="${env_var%=*}"
  if [[ "$key" == "OVERRIDE_BUILDKITE_"* ]]; then
    export "${key#OVERRIDE_}"="${env_var#*=}"
  fi
done < <(env)

Worked like a charm!