# Copyright 2013-2022 Lawrence Livermore National Security, LLC and other
# Spack Project Developers. See the top-level COPYRIGHT file for details.
#
# SPDX-License-Identifier: (Apache-2.0 OR MIT)
import os
from llnl.util.filesystem import find
from spack.directives import depends_on, extends
from spack.multimethod import when
from spack.package import PackageBase
from spack.util.executable import Executable
[docs]class LuaPackage(PackageBase):
"""Specialized class for lua packages"""
phases = ['unpack', 'generate_luarocks_config', 'preprocess', 'install']
#: This attribute is used in UI queries that need to know the build
#: system base class
build_system_class = 'LuaPackage'
list_depth = 1 # LuaRocks requires at least one level of spidering to find versions
depends_on('lua-lang')
extends('lua', when='^lua')
with when('^lua-luajit'):
extends('lua-luajit')
depends_on('luajit')
depends_on('lua-luajit+lualinks')
with when('^lua-luajit-openresty'):
extends('lua-luajit-openresty')
depends_on('luajit')
depends_on('lua-luajit-openresty+lualinks')
[docs] def unpack(self, spec, prefix):
if os.path.splitext(self.stage.archive_file)[1] == '.rock':
directory = self.luarocks('unpack', self.stage.archive_file, output=str)
dirlines = directory.split('\n')
# TODO: figure out how to scope this better
os.chdir(dirlines[2])
def _generate_tree_line(self, name, prefix):
return """{{ name = "{name}", root = "{prefix}" }};""".format(
name=name,
prefix=prefix,
)
def _luarocks_config_path(self):
return os.path.join(self.stage.source_path, 'spack_luarocks.lua')
[docs] def generate_luarocks_config(self, spec, prefix):
spec = self.spec
table_entries = []
for d in spec.traverse(
deptypes=("build", "run"), deptype_query="run"
):
if d.package.extends(self.extendee_spec):
table_entries.append(self._generate_tree_line(d.name, d.prefix))
path = self._luarocks_config_path()
with open(path, 'w') as config:
config.write(
"""
deps_mode="all"
rocks_trees={{
{}
}}
""".format(
"\n".join(table_entries)
)
)
return path
[docs] def setup_build_environment(self, env):
env.set('LUAROCKS_CONFIG', self._luarocks_config_path())
[docs] def preprocess(self, spec, prefix):
"""Override this to preprocess source before building with luarocks"""
pass
@property
def lua(self):
return Executable(self.spec['lua-lang'].prefix.bin.lua)
@property
def luarocks(self):
lr = Executable(self.spec['lua-lang'].prefix.bin.luarocks)
return lr
[docs] def luarocks_args(self):
return []
[docs] def install(self, spec, prefix):
rock = '.'
specs = find('.', '*.rockspec', recursive=False)
if specs:
rock = specs[0]
rocks_args = self.luarocks_args()
rocks_args.append(rock)
self.luarocks('--tree=' + prefix, 'make', *rocks_args)