The pygmalion and pygmalion-virtualenv themes unsafely handle git prompt information
which results in a double evaluation of this information, so a malicious git repository
could trigger a command injection if the user cloned and entered the repository.
A similar method could be used in the refined theme. All themes have been patched against this
vulnerability.
My system doesn't have `perl` in $PATH, so using this theme clutters the
shell output quite a bit.
Turns out, the same thing can be accomplished in pure zsh (with
extendedglob).
Co-Authored-By: Marc Cornellà <marc.cornella@live.com>
Use add-zsh-hook to add functions to hooks. That way they won't be added again
when doing `source ~/.zshrc` multiple times.
Co-authored-by: Marc Cornellà <marc.cornella@live.com>
