# -*- mode: shell-script; sh-basic-offset: 8; indent-tabs-mode: t -*-
# ex: ts=8 sw=8 noet filetype=sh
#
# bash completion for GNU make

have make || have gmake || have gnumake || have pmake &&
_make()
{
	local file makef makef_dir="." makef_inc cur prev i split=false

	COMPREPLY=()
	cur=`_get_cword`
	prev=${COMP_WORDS[COMP_CWORD-1]}

	_split_longopt && split=true

	case $prev in
		-@(f|o|W|-@(?(make|old-|new-)file|assume-@(old|new)|what-if)))
			_filedir
			return 0
			;;
		-I|-C|--directory|--include-dir)
			_filedir -d
			return 0
			;;
	esac

	$split && return 0

	if [[ "$cur" == -* ]]; then
		COMPREPLY=( $( compgen -W '-b -m -B -C -d -e -f -h -i -I\
			-j -l -k -n -o -p -q -r -R - s -S -t -v -w -W \
			--always-make --directory --debug \
			--environment-overrides --file --makefile --help \
			--ignore-errors --include-dir --jobs --load-average \
			--max-load --keep-going --just-print --dry-run \
			--recon --old-file --assume-old --print-data-base \
			--question --no-builtin-rules --no-builtin-variables \
			--silent --quiet --no-keep-goind --stop --touch \
			--version --print-directory --no-print-directory \
			--what-if --new-file --assume-new \
			--warn-undefined-variables' -- $cur ) )
	else
		# before we check for makefiles, see if a path was specified
		# with -C
		for (( i=0; i < ${#COMP_WORDS[@]}; i++ )); do
			if [[ ${COMP_WORDS[i]} == -C ]]; then
				# eval for tilde expansion
				eval makef_dir=${COMP_WORDS[i+1]}
				break
			fi
		done

		# before we scan for targets, see if a Makefile name was
		# specified with -f
		for (( i=0; i < ${#COMP_WORDS[@]}; i++ )); do
			if [[ ${COMP_WORDS[i]} == -f ]]; then
				# eval for tilde expansion
				eval makef=${COMP_WORDS[i+1]}
				break
			fi
		done

		[ -n "$makef" ] && makef="-f ${makef}"
		[ -n "$makef_dir" ] && makef_dir="-C ${makef_dir}"
		
		COMPREPLY=( $( compgen -W "$( make -qp $makef $makef_dir 2>/dev/null | \
					awk -F':' '/^[a-zA-Z0-9][^$#\/\t=]*:([^=]|$)/ \
					{split($1,A,/ /);for(i in A)print A[i]}' )" \
					-- $cur ) )

	fi
} &&
complete -F _make $filenames make gmake gnumake pmake
