Makefile

TEST_FILE?=$(realpath tests)

NVIM_PATH=deps/nvim_multiversion
# relative to ${NVIM_PATH} and relative to this makefile.
NVIM_MASTER_PATH_REL=worktree_master
NVIM_0.7_PATH_REL=worktree_0.7
NVIM_MASTER_PATH=${NVIM_PATH}/${NVIM_MASTER_PATH_REL}
NVIM_0.7_PATH=${NVIM_PATH}/${NVIM_0.7_PATH_REL}

# directory as target.
${NVIM_PATH}:
	# fetch current master and 0.7.0 (the minimum version we support).
	git clone --bare --depth 1 https://github.com/neovim/neovim ${NVIM_PATH}
	git -C ${NVIM_PATH} fetch --depth 1 origin tag v0.7.0
	# create one worktree for master, and one for 0.7.
	# The rationale behind this is that switching from 0.7 to master (and
	# vice-versa) requires a `make distclean`, and full clean build, which takes
	# a lot of time.
	# The most straightforward solution seems to be too keep two worktrees, one
	# for master, one for 0.7, which are used for the respective builds/tests.
	git -C ${NVIM_PATH} worktree add ${NVIM_MASTER_PATH_REL} master
	git -C ${NVIM_PATH} worktree add ${NVIM_0.7_PATH_REL} v0.7.0

# |: don't update `nvim` if `${NVIM_PATH}` is changed.
nvim: | ${NVIM_PATH}
	# only update master
	git -C ${NVIM_MASTER_PATH} fetch --depth 1

OS:=$(shell uname)
NIX:=$(shell command -v nix 2> /dev/null)
LUAJIT:=$(shell nvim -v | grep -o LuaJIT)
LUAJIT_OSX_PATH?=/opt/homebrew/opt/luajit
LUAJIT_NIX_PATH:=$(shell dirname $(shell dirname $(shell which luajit)))
ifeq ($(LUAJIT),LuaJIT)
	ifdef NIX
		LUA_LDLIBS=-lluajit-5.1.2 -L${LUAJIT_NIX_PATH}/lib/
	else ifeq ($(OS),Darwin)
		LUA_LDLIBS=-lluajit-5.1.2 -L${LUAJIT_OSX_PATH}/lib/
	else
		LUA_LDLIBS=-lluajit-5.1
	endif
else
	LUA_LDLIBS=-llua5.1
endif
JSREGEXP_PATH=deps/jsregexp
jsregexp:
	git submodule init
	git submodule update
	make INCLUDE_DIR=-I$(shell pwd)/deps/lua51_include/ LDLIBS="${LUA_LDLIBS}" -C ${JSREGEXP_PATH}

install_jsregexp: jsregexp
	# access via require("luasnip-jsregexp")
	# The hyphen must be used here, otherwise the luaopen_*-call will fail.
	# See the package.loaders-section [here](https://www.lua.org/manual/5.1/manual.html#pdf-require)
	cp $(shell pwd)/${JSREGEXP_PATH}/jsregexp.so $(shell pwd)/lua/luasnip-jsregexp.so

uninstall_jsregexp:
	rm $(shell pwd)/lua/luasnip-jsregexp.so

TEST_07?=true
TEST_MASTER?=true
# Expects to be run from repo-location (eg. via `make -C path/to/luasnip`).
test: nvim jsregexp
	# unset PATH and CPATH to prevent system-env leaking into the neovim-build,
	# add our helper-functions to lpath.
	# exit as soon as an error occurs.
	unset LUA_PATH LUA_CPATH; \
	export LUASNIP_SOURCE=$(shell pwd); \
	export JSREGEXP_PATH=$(shell pwd)/${JSREGEXP_PATH}; \
	export TEST_FILE=$(realpath ${TEST_FILE}); \
	export BUSTED_ARGS=--lpath=$(shell pwd)/tests/?.lua; \
	set -e; \
	if ${TEST_07}; then make -C ${NVIM_0.7_PATH} functionaltest; fi; \
	if ${TEST_MASTER}; then make -C ${NVIM_MASTER_PATH} functionaltest; fi;