dotfiles/.config/zsh/functions/export-emacs

#!/usr/bin/env zsh
# Export variable to Emacs.

if [[ ARGC -eq 0 ]]; then
    print -u 2 "Usage: ${0} <variable> …"
    return 1
fi

# Fail if we can't communicate with the daemon
[[ "$(emacsclient -e t)" == 't' ]] || return 1

for name in "${@}"; do
    local value=$(eval print \"\$${name}\")
    emacsclient -e "(setenv \"${name}\" \"${value}\")" >/dev/null
done