tree 73d7245393f9f2a337f927a4d4f414ce087a23b3
parent 015623ee6d1827f83d3e1ff8d37fcf9da735fa73
author Brandon L. Reiss <brandon@frame.ai> 1611771137 -0500
committer Jordan Harband <ljharb@gmail.com> 1611771137 -0500
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[Fix] Fix potential unbound var error on nvm install

Fixes #2420. When using `nvm install` with an already installed
version, Bash (and potentially other shells) may emit an unbound
variable error when `set -u` is set. The presence of the error depends
on specific shell versions, but appears to happen in MacOS 11.1 (Big
Sur) using a recent Bash version installed via Homebrew (as of this
writing).

The fix accesses `ALIAS` correctly for the case where it is not set by
an `alias` option to `nvm install`.