vim-pack-complete

#! /usr/bin/env bash

repo_dir=$HOME/.vim/pack/git-plugins

contains_single() {
	local array="$1[@]"
	local seeking=$2
	local in=0
	for element in "${!array}"; do
		if [[ "$element" == "$seeking" ]]; then
			in=1
			break
		fi
	done
	return $in
}

contains() {
	local var
	local in=0
	for var in "${@:2}"; do
		contains_single "$1" "$var"
		if [ "$?" -eq 1 ]; then
			in=1
			break
		fi
	done
	return $in
}

_vim_pack_tab_complete() {
	local cur prev
	compopt -o nospace
	COMPREPLY=()
	cur="${COMP_WORDS[COMP_CWORD]}"
	prev="${COMP_WORDS[COMP_CWORD-1]}"
	words=""
	if [ "$COMP_CWORD" -eq "1" ]; then
		words="get install list remove update upgrade export import sync"
		COMPREPLY=( $(compgen -W "$words" -- "$cur") )
		return 0;
	else
		if [[ "$prev" == '--'* && "$cur" == '=' ]] ; then
			compopt -o filenames
			COMPREPLY=(*)
			return 0
		fi
		# Handle --xxxxx=path
		if [[ "$prev" == '=' ]] ; then
			# Unescape space
			cur=$(realpath "${cur//\\ / }")
			# Show completion if path exist (and escape spaces)
			compopt -o filenames
			local files=("${cur}"*)
			[[ -e ${files[0]} ]] && COMPREPLY=( "${files[@]// /\ }" )
			return 0
		fi

		if contains COMP_WORDS "--git-dir" "-d"; then
			words="$words -d --git-dir="
		else
			if [[ "$prev" == "-d" ]];then
				cur=$(realpath "${cur//\\ / }")
				# Show completion if path exist (and escape spaces)
				compopt -o filenames
				local files=("${cur}"*)
				[[ -e ${files[0]} ]] && COMPREPLY=( "${files[@]// /\ }" )
				return 0
			fi
			next=0
			for var in ${COMP_WORDS[*]}; do
				if (( next == 1 )); then
					next=2
				elif (( next == 2 )); then
					repo_dir=$var
				fi
				if [[ $var == '-d' ]]; then
					next=2
				fi
				if [[ $var == '--git-dir' ]]; then
					next=1
				fi
			done
		fi
		if contains COMP_WORDS '--silent' '-s' '--verbose' '-v'; then
			words="$words -s --silent -v --verbose"
		fi
		case "${COMP_WORDS[1]}" in
			get)
				if contains COMP_WORDS 'opt' 'start'; then
					words="$words opt start"
				fi
				;;
			install)
				if contains COMP_WORDS 'opt' 'start'; then
					words="$words opt start"
				fi
				;;
			list)
				if [[ "$(compgen -W "${words}" -- "${cur}")" == '' ]]; then
					# Expand tilder to $HOME
					cur=$(realpath "${cur//\\ / }")
					# Show completion if path exist (and escape spaces)
					compopt -o filenames
					local files=("${cur}"*)
					[[ -e ${files[0]} ]] && COMPREPLY=( "${files[@]// /\ }" )
					return 0
				fi
				;;
			remove)
				contains COMP_WORDS 'opt'
				local opt=$?
				contains COMP_WORDS 'start'
				local start=$?
				if (( opt == 1 )) ; then
					words="$words $(ls "$repo_dir/opt")"
				elif (( start == 1 )); then
					words="$words $(ls "$repo_dir/start")"
				else
					words="$words opt start"
				fi
				;;
			update)
				if contains COMP_WORDS '-g' '--gnu-parallel' '-m' '--more-parallel' '-l' '--loop'; then
					words="$words -g --gnu-parallel -m --more-parallel -l --loop"
				fi
				;;
			upgrade)
				if contains COMP_WORDS '-g' '--gnu-parallel' '-m' '--more-parallel' '-l' '--loop'; then
					words="$words -g --gnu-parallel -m --more-parallel -l --loop"
				fi
				;;
			export)
				if [[ "$(compgen -W "${words}" -- "${cur}")" == '' ]]; then
					# Expand tilder to $HOME
					cur=$(realpath "${cur//\\ / }")
					# Show completion if path exist (and escape spaces)
					compopt -o filenames
					local files=("${cur}"*)
					[[ -e ${files[0]} ]] && COMPREPLY=( "${files[@]// /\ }" )
					return 0
				fi
				;;
			import)
				if contains COMP_WORDS '-g' '--gnu-parallel' '-m' '--more-parallel' '-l' '--loop'; then
					words="$words -g --gnu-parallel -m --more-parallel -l --loop"
				fi
				if [[ "$(compgen -W "${words}" -- "${cur}")" == "" ]]; then
					# Expand tilder to $HOME
					cur=$(realpath "${cur//\\ / }")
					# Show completion if path exist (and escape spaces)
					compopt -o filenames
					local files=("${cur}"*)
					[[ -e ${files[0]} ]] && COMPREPLY=( "${files[@]// /\ }" )
					return 0
				fi
				;;
			sync)
				if contains COMP_WORDS '-g' '--gnu-parallel' '-m' '--more-parallel' '-l' '--loop'; then
					words="$words -g --gnu-parallel -m --more-parallel -l --loop"
				fi
				if [[ "$(compgen -W "${words}" -- "${cur}")" == "" ]]; then
					# Expand tilder to $HOME
					cur=$(realpath "${cur//\\ / }")
					# Show completion if path exist (and escape spaces)
					compopt -o filenames
					local files=("${cur}"*)
					[[ -e ${files[0]} ]] && COMPREPLY=( "${files[@]// /\ }" )
					return 0
				fi
				;;
			*)
		esac
		mapfile -t COMPREPLY < <(compgen -W "${words}" -- "${cur}")
	fi
	return 0
}

complete -F _vim_pack_tab_complete vim-pack