Zsh / bash dynamic completions for npx binaries installed in a project

npx.bash

## Depends on gnu-find
# brew install findutils

## ~/.zshrc
# autoload bashcompinit
# bashcompinit
# source ~/.config/zsh/bashcompinit/npx.bash


_npx() {
	local dir=$(pwd -P)
	while [[ -n "$dir" ]]; do
		if [[ ! -d $dir/node_modules/.bin ]]; then
			dir=${dir%/*}
			continue
		fi
		local execs=($(
			cd $dir/node_modules/.bin
			gfind -L . -type f -executable
		))
		execs=(${execs[@]/#.\//})
		local cur=${COMP_WORDS[COMP_CWORD]}
		COMPREPLY=($(compgen -W "${execs[*]}" -- "$cur"))
		break
	done
}

complete -F _npx npx