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Add a copy of nix_expression.py from superflore

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663a454afa/superflore/generators/nix/nix_expression.py
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Michal Sojka 2024-08-23 12:46:52 +02:00
parent 94a71fa564
commit b746bf9312
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# -*- coding: utf-8 -*-
#
# Copyright (c) 2016 David Bensoussan, Synapticon GmbH
# Copyright (c) 2019 Open Source Robotics Foundation, Inc.
#
#
# Permission is hereby granted, free of charge, to any person obtaining a copy
# of this software and associated documentation files (the "Software"), to
# deal in the Software without restriction, including without limitation the
# rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
# sell copies of the Software, and to permit persons to whom the Software is
# furnished to do so, subject to the following conditions:
#
# The above copyright notice and this permission notice shall be included in
# all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
# FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
# IN THE SOFTWARE.
#
from operator import attrgetter
import os
from textwrap import dedent
from time import gmtime, strftime
from typing import Iterable, Set
import urllib.parse
from superflore.utils import get_license
def _escape_nix_string(string: str):
return '"{}"'.format(string.replace("\\", "\\\\")
.replace("${", r"\${")
.replace('"', r"\""))
class NixLicense:
"""
Converts a ROS license to the correct Nix license attribute.
"""
_LICENSE_MAP = {
'Apache-2.0': 'asl20',
'ASL 2.0': 'asl20',
'Boost-1.0': 'boost',
'BSD-2': 'bsd2',
'BSD-3-Clause': 'bsd3',
'BSD': 'bsdOriginal',
'CC-BY-NC-SA-4.0': 'cc-by-nc-sa-40',
'GPL-1': 'gpl1',
'GPL-2': 'gpl2',
'GPL-3.0-only': 'gpl3Only',
'GPL-3': 'gpl3',
'LGPL-2.1': 'lgpl21',
'LGPL-2': 'lgpl2',
'LGPL-3.0-only': 'lgpl3Only',
'LGPL-3': 'lgpl3',
'MIT': 'mit',
'MPL-1.0': 'mpl10',
'MPL-1.1': 'mpl11',
'MPL-2.0': 'mpl20',
'PD': 'publicDomain',
}
def __init__(self, name):
try:
name = get_license(name)
self.name = self._LICENSE_MAP[name]
self.custom = False
except KeyError:
self.name = name
self.custom = True
@property
def nix_code(self) -> str:
if self.custom:
return _escape_nix_string(self.name)
else:
return self.name
class NixExpression:
def __init__(self, name: str, version: str,
src_url: str, src_sha256: str,
description: str, licenses: Iterable[NixLicense],
distro_name: str,
build_type: str,
build_inputs: Set[str] = set(),
propagated_build_inputs: Set[str] = set(),
check_inputs: Set[str] = set(),
native_build_inputs: Set[str] = set(),
propagated_native_build_inputs: Set[str] = set()
) -> None:
self.name = name
self.version = version
self.src_url = src_url
self.src_sha256 = src_sha256
# fetchurl's naming logic cannot account for URL parameters
self.src_name = os.path.basename(
urllib.parse.urlparse(self.src_url).path)
self.description = description
self.licenses = licenses
self.distro_name = distro_name
self.build_type = build_type
self.build_inputs = build_inputs
self.propagated_build_inputs = propagated_build_inputs
self.check_inputs = check_inputs
self.native_build_inputs = native_build_inputs
self.propagated_native_build_inputs = \
propagated_native_build_inputs
@staticmethod
def _to_nix_list(it: Iterable[str]) -> str:
return '[ ' + ' '.join(it) + ' ]'
@staticmethod
def _to_nix_parameter(dep: str) -> str:
return dep.split('.')[0]
def get_text(self, distributor: str, license_name: str) -> str:
"""
Generate the Nix expression, given the distributor line
and the license text.
"""
ret = []
ret += dedent('''
# Copyright {} {}
# Distributed under the terms of the {} license
''').format(
strftime("%Y", gmtime()), distributor,
license_name)
ret += '{ lib, buildRosPackage, fetchurl, ' + \
', '.join(sorted(set(map(self._to_nix_parameter,
self.build_inputs |
self.propagated_build_inputs |
self.check_inputs |
self.native_build_inputs |
self.propagated_native_build_inputs)))
) + ' }:'
ret += dedent('''
buildRosPackage {{
pname = "ros-{distro_name}-{name}";
version = "{version}";
src = fetchurl {{
url = "{src_url}";
name = "{src_name}";
sha256 = "{src_sha256}";
}};
buildType = "{build_type}";
''').format(
distro_name=self.distro_name,
name=self.name,
version=self.version,
src_url=self.src_url,
src_name=self.src_name,
src_sha256=self.src_sha256,
build_type=self.build_type)
if self.build_inputs:
ret += " buildInputs = {};\n" \
.format(self._to_nix_list(sorted(self.build_inputs)))
if self.check_inputs:
ret += " checkInputs = {};\n" \
.format(self._to_nix_list(sorted(self.check_inputs)))
if self.propagated_build_inputs:
ret += " propagatedBuildInputs = {};\n" \
.format(self._to_nix_list(sorted(
self.propagated_build_inputs)))
if self.native_build_inputs:
ret += " nativeBuildInputs = {};\n" \
.format(self._to_nix_list(sorted(self.native_build_inputs)))
if self.propagated_native_build_inputs:
ret += " propagatedNativeBuildInputs = {};\n".format(
self._to_nix_list(sorted(self.propagated_native_build_inputs)))
ret += dedent('''
meta = {{
description = {};
license = with lib.licenses; {};
}};
}}
''').format(_escape_nix_string(self.description),
self._to_nix_list(map(attrgetter('nix_code'),
self.licenses)))
return ''.join(ret)