Using custom command in the bash with autocompletion (MacOS - Bash)

.aliases

#!/usr/bin/env bash
source ~/.bash_functions;

alias project='project $1'

.bash_functions

_project_complete(){
  COMPREPLY=($(compgen -d "$HOME"/Documents/Projects/"$2"))
	COMPREPLY=("${COMPREPLY[@]##*/}")
}

project(){
	cd $HOME/Documents/Projects/$1
}

complete -F _project_complete project

.bash_profile

#!/usr/bin/env bash
source ~/.aliases;