Eselect module for gradle-bin

gradle.eselect

# Copyright 1999-2017 Gentoo Foundation # Distributed under the terms of the GNU General Public License v2
# $Id: $

DESCRIPTION="Manage gradle symlinks"
MAINTAINER="sldenazis@argentoo.org"
SVN_DATE='20170830'
VERSION=${SVN_DATE}

find_targets() {
	local f
	for f in "${EROOT}"/usr/share/gradle-bin-[[:digit:]]*; do
		[[ -d ${f} ]] && basename "${f}"
	done
}

# Remove gradle symlink
remove_symlink() {
	rm -f "${EROOT}/usr/bin/gradle"
}

set_symlink() {
	local target=${1}

	if is_number $target && [[ $target -gt 0 ]]; then
		local targets=( $( find_targets ) )
		target="${targets[${target} - 1]}/bin/gradle"
	fi

	[[ -z ${1} || ! -e ${EROOT}/usr/share/${target} ]] \
		&& die "Target $target doesn't appear to ve valid!"
	
	ln -s "${EROOT}/usr/share/$target" "${EROOT}/usr/bin/gradle"
}

describe_show() {
	echo "Show the current gradle symlink"
}

do_show() {
	write_list_start "Current gradle symlink:"
	if [[ -L ${EROOT}/usr/bin/gradle ]]; then
		local gradle=$(canonicalise "${EROOT}/usr/bin/gradle")
		write_kv_list_entry "${gradle%/}" ""
	else
		write_kv_list_entry "(unset)" ""
	fi
}

describe_list() {
	echo "List available gradle versions"
}

do_list() {
	local targets=( $( find_targets ) )
	local i line

	write_list_start "Available gradle versions:"

	for (( i = 0; i < ${#targets[@]}; i++ )) ; do
		line=$(basename "${targets[i]}")

		if [[ /usr/share/${targets[i]}/bin/gradle = $(canonicalise "${EROOT}/usr/bin/gradle") ]] ; then
			targets[i]=$(highlight_marker "${targets[i]}")
		fi
	done

	write_numbered_list -m "(none found)" "${targets[@]}"
}

describe_set() {
	echo "Switches to desired gradle version."
}

do_set() {
	[[ -z ${@} ]] && die -q "Parameter expected."

	local target=$1

	[[ $target = "invalid" ]] && die -q "Can't use that profile. No suitable Ruby interpreter found."

	remove_symlink || \
		die -q "Could not remove symlink"

	set_symlink "${target}"
}

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