install

#!/usr/bin/env bash

set -euo pipefail

# Calculate plugin_dir for utils.bash source reference
if [ -z "${ASDF_PLUGIN_PATH:-}" ]; then
	current_script_path="${BASH_SOURCE[0]}"
	plugin_dir="$(dirname "$(dirname "$current_script_path")")"
	plugin_dir="$(cd "$plugin_dir" && pwd)"
else
	plugin_dir="${ASDF_PLUGIN_PATH}"
fi

if ! source "${plugin_dir}/lib/utils.bash"; then
	printf "[asdf-vim] ERROR: Failed to source lib/utils.bash from %s\n" "${plugin_dir}" >&2
	exit 1
fi

install_vim() {
	local install_version
	local install_path
	local concurrency
	local download_path
	install_version=$1
	install_path=$2
	concurrency=$(get_valid_concurrency "$3")
	download_path=$4

	# If install_version contains 'latest', try to resolve it
	if [[ "${install_version}" == *latest* ]]; then
		if [[ -x "${plugin_dir}/bin/latest-stable" ]]; then
			local resolved
			resolved="$("${plugin_dir}/bin/latest-stable" 2>/dev/null)" || {
				printf '[asdf-vim] ERROR: failed to resolve latest in install\n' >&2
				return 1
			}
			printf '[asdf-vim] Resolved install version latest -> %s\n' "$resolved" >&2
			install_version="$resolved"
		fi
	fi

	echo "Install Vim version:${install_version}, path:${install_path}, build concurrency:${concurrency}"

	local default_config="\
--with-tlib=ncurses \
--with-compiledby=asdf \
--enable-multibyte \
--enable-cscope \
--enable-terminal \
--enable-perlinterp \
--enable-rubyinterp \
--enable-python3interp \
--enable-luainterp \
--enable-gui=no \
--without-x"

	local vim_type="${ASDF_VIM_TYPE:-huge}"
	local config="${ASDF_VIM_CONFIG:-${default_config}}"

	# running this in subshell
	# we don't want to disturb current working dir
	(
		cd "${download_path}/vim-${install_version}" || exit 1
		local configure_option="--prefix=${install_path} --with-features=${vim_type} ${config}"
		# shellcheck disable=SC2086
		echo 'configure option: ' $configure_option || exit 1
		# shellcheck disable=SC2086
		./configure $configure_option || exit 1

		make -j "${concurrency}" || exit 1
		make install || exit 1
	)

	return
}

get_valid_concurrency() {
	local concurrency
	concurrency=$1

	if [[ "${concurrency}" =~ ^[0-9]+$ ]]; then
		# number
		echo "${concurrency}"
	else
		# is not number
		echo "1"
	fi
	return
}

install_vim "${ASDF_INSTALL_VERSION}" "${ASDF_INSTALL_PATH}" "${ASDF_CONCURRENCY:-1}" "${ASDF_DOWNLOAD_PATH}"