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# SPDX-FileCopyrightText: 2022-present Angus Hollands <goosey15@gmail.com>
#
# SPDX-License-Identifier: MIT
import json
import os
import re
from hatchling.version.source.plugin.interface import VersionSourceInterface
# The Python-aware NodeJS version regex
# This is very similar to `packaging.version.VERSION_PATTERN`, with a few changes:
# - Don't accept underscores
# - Only support four-component release, prerelease, and build segments
# - Require - to indicate prerelease
NODE_VERSION_PATTERN = r"""
(?P<major>[0-9]+) # major
\.
(?P<minor>[0-9]+) # minor
\.
(?P<patch>[0-9]+) # patch
(?P<pre> # pre-release
-
(?P<pre_l>(a|b|c|rc|alpha|beta|pre|preview))
[-\.]?
(?P<pre_n>[0-9]+)?
)?
(?:
\+
(?P<build>
[0-9A-Za-z][0-9A-Za-z-_]* # non-hyphen/dash leading identifier
(?:
(?:\.[0-9A-Za-z-_]+)* # dot-prefixed identifier segments
\. # Final dot-delimited segment
[0-9A-Za-z_-]* # non-hyphen/dash trailing identifier
[0-9A-Za-z]
)?
)
)?
"""
# The NodeJS-aware Python version regex
# This is very similar to `packaging.version.VERSION_PATTERN`, with a few changes:
# - Only support four-component release, prerelease, and build segments
PYTHON_VERSION_PATTERN = r"""
v?
(?:
(?P<major>[0-9]+) # major
\.
(?P<minor>[0-9]+) # minor
\.
(?P<patch>[0-9]+) # patch
(?P<pre> # pre-release
[-_\.]?
(?P<pre_l>(alpha|beta|preview|a|b|c|rc|pre))
[-_\.]?
(?P<pre_n>[0-9]+)?
)?
(?:
\+
(?P<local>
[0-9A-Za-z][0-9A-Za-z-_]* # non-hyphen/dash leading identifier
(?:
(?:\.[0-9A-Za-z-_]+)* # dot-prefixed identifier
\.
[0-9A-Za-z_-]* # non-hyphen/dash trailing identifier
[0-9A-Za-z]
)?
)
)?
)
"""
class NodeJSVersionSource(VersionSourceInterface):
PLUGIN_NAME = "nodejs"
def __init__(self, *args, **kwargs):
super().__init__(*args, **kwargs)
self.__path = None
@property
def path(self):
if self.__path is None:
version_file = self.config.get("path", "package.json")
if not isinstance(version_file, (str, bytes, os.PathLike)):
raise TypeError(
"Option `path` for version source `{}` must be a string".format(
self.PLUGIN_NAME
)
)
self.__path = os.fspath(version_file)
return self.__path
@staticmethod
def node_version_to_python(version: str) -> str:
# NodeJS version strings are a near superset of Python version strings
match = re.match(
r"^\s*" + NODE_VERSION_PATTERN + r"\s*$",
version,
re.VERBOSE | re.IGNORECASE,
)
if match is None:
raise ValueError(f"Version {version!r} did not match regex")
parts = ["{major}.{minor}.{patch}".format_map(match)]
if match["pre"]:
if match["pre_n"] is None:
parts.append("{pre_l}".format_map(match))
else:
parts.append("{pre_l}{pre_n}".format_map(match))
if match["build"]:
parts.append("+{build}".format_map(match))
return "".join(parts)
@staticmethod
def python_version_to_node(version: str) -> str:
# NodeJS version strings are a near superset of Python version strings
match = re.match(
r"^\s*" + PYTHON_VERSION_PATTERN + r"\s*$",
version,
re.VERBOSE | re.IGNORECASE,
)
if match is None:
raise ValueError(f"Version {version!r} did not match regex")
parts = ["{major}.{minor}.{patch}".format_map(match)]
if match["pre"]:
if match["pre_n"] is None:
parts.append("-{pre_l}".format_map(match))
else:
parts.append("-{pre_l}{pre_n}".format_map(match))
if match["local"]:
parts.append("+{local}".format_map(match))
return "".join(parts)
def get_version_data(self):
path = os.path.normpath(os.path.join(self.root, self.path))
if not os.path.isfile(path):
raise OSError(f"file does not exist: {self.path}")
with open(path, "r", encoding="utf-8") as f:
data = json.load(f)
return {"version": self.node_version_to_python(data["version"])}
def set_version(self, version: str, version_data):
path = os.path.normpath(os.path.join(self.root, self.path))
if not os.path.isfile(path):
raise OSError(f"file does not exist: {self.path}")
# Read the original file so we can see if it has a trailing
# newline character.
with open(path, "r") as f:
raw_data = f.read()
data = json.loads(raw_data)
data["version"] = self.python_version_to_node(version)
with open(path, "w") as f:
json.dump(data, f, indent=4)
if raw_data.endswith('\n'):
f.write('\n')
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