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parser.py
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parser.py
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import glob
import io
import json
import os.path
import re
import configparser
import setuptools
import pip._internal.req.req_file
from pip._internal.network.session import PipSession
from pip._internal.req.constructors import (
install_req_from_line,
install_req_from_parsed_requirement,
)
from packaging.requirements import InvalidRequirement, Requirement
# TODO: Replace 3p package `toml` with 3.11's new stdlib `tomllib` once we drop
# support for Python 3.10.
import toml
# Inspired by pips internal check:
# https://github.com/pypa/pip/blob/0bb3ac87f5bb149bd75cceac000844128b574385/src/pip/_internal/req/req_file.py#L35
COMMENT_RE = re.compile(r'(^|\s+)#.*$')
def parse_pep621_dependencies(pyproject_path):
project_toml = toml.load(pyproject_path)['project']
def parse_toml_section_pep621_dependencies(pyproject_path, dependencies):
requirement_packages = []
def version_from_req(specifier_set):
if (len(specifier_set) == 1 and
next(iter(specifier_set)).operator in {"==", "==="}):
return next(iter(specifier_set)).version
for dependency in dependencies:
try:
req = Requirement(dependency)
except InvalidRequirement as e:
print(json.dumps({"error": repr(e)}))
exit(1)
else:
requirement_packages.append({
"name": req.name,
"version": version_from_req(req.specifier),
"markers": str(req.marker) or None,
"file": pyproject_path,
"requirement": str(req.specifier),
"extras": sorted(list(req.extras))
})
return requirement_packages
dependencies = []
if 'dependencies' in project_toml:
dependencies_toml = project_toml['dependencies']
runtime_dependencies = parse_toml_section_pep621_dependencies(
pyproject_path,
dependencies_toml
)
dependencies.extend(runtime_dependencies)
if 'optional-dependencies' in project_toml:
optional_dependencies_toml = project_toml['optional-dependencies']
for group in optional_dependencies_toml:
group_dependencies = parse_toml_section_pep621_dependencies(
pyproject_path,
optional_dependencies_toml[group]
)
dependencies.extend(group_dependencies)
return json.dumps({"result": dependencies})
def parse_requirements(directory):
# Parse the requirements.txt
requirement_packages = []
requirement_files = glob.glob(os.path.join(directory, '*.txt')) \
+ glob.glob(os.path.join(directory, '**', '*.txt'))
pip_compile_files = glob.glob(os.path.join(directory, '*.in')) \
+ glob.glob(os.path.join(directory, '**', '*.in'))
def version_from_install_req(install_req):
if install_req.is_pinned:
return next(iter(install_req.specifier)).version
for reqs_file in requirement_files + pip_compile_files:
try:
requirements = pip._internal.req.req_file.parse_requirements(
reqs_file,
session=PipSession()
)
for parsed_req in requirements:
install_req = install_req_from_parsed_requirement(parsed_req)
if install_req.req is None:
continue
# Ignore file: requirements
if install_req.link is not None and install_req.link.is_file:
continue
pattern = r"-[cr] (.*) \(line \d+\)"
abs_path = re.search(pattern, install_req.comes_from).group(1)
# Ignore dependencies from remote constraint files
if not os.path.isfile(abs_path):
continue
rel_path = os.path.relpath(abs_path, directory)
requirement_packages.append({
"name": install_req.req.name,
"version": version_from_install_req(install_req),
"markers": str(install_req.markers) or None,
"file": rel_path,
"requirement": str(install_req.specifier) or None,
"extras": sorted(list(install_req.extras))
})
except Exception as e:
print(json.dumps({"error": repr(e)}))
exit(1)
return json.dumps({"result": requirement_packages})
def parse_setup(directory):
def version_from_install_req(install_req):
if install_req.is_pinned:
return next(iter(install_req.specifier)).version
def parse_requirement(req, req_type, filename):
install_req = install_req_from_line(req)
if install_req.original_link:
return
setup_packages.append(
{
"name": install_req.req.name,
"version": version_from_install_req(install_req),
"markers": str(install_req.markers) or None,
"file": filename,
"requirement": str(install_req.specifier) or None,
"requirement_type": req_type,
"extras": sorted(list(install_req.extras)),
}
)
def parse_requirements(requires, req_type, filename):
for req in requires:
req = COMMENT_RE.sub('', req)
req = req.strip()
parse_requirement(req, req_type, filename)
# Parse the setup.py and setup.cfg
setup_py = "setup.py"
setup_py_path = os.path.join(directory, setup_py)
setup_cfg = "setup.cfg"
setup_cfg_path = os.path.join(directory, setup_cfg)
setup_packages = []
if os.path.isfile(setup_py_path):
def setup(*args, **kwargs):
for arg in ["setup_requires", "install_requires", "tests_require"]:
requires = kwargs.get(arg, [])
parse_requirements(requires, arg, setup_py)
extras_require_dict = kwargs.get("extras_require", {})
for key, value in extras_require_dict.items():
parse_requirements(
value, "extras_require:{}".format(key), setup_py
)
setuptools.setup = setup
def noop(*args, **kwargs):
pass
def fake_parse(*args, **kwargs):
return []
global fake_open
def fake_open(*args, **kwargs):
content = (
"VERSION = ('0', '0', '1+dependabot')\n"
"__version__ = '0.0.1+dependabot'\n"
"__author__ = 'someone'\n"
"__title__ = 'something'\n"
"__description__ = 'something'\n"
"__author_email__ = 'something'\n"
"__license__ = 'something'\n"
"__url__ = 'something'\n"
)
return io.StringIO(content)
content = open(setup_py_path, "r").read()
# Remove `print`, `open`, `log` and import statements
content = re.sub(r"print\s*\(", "noop(", content)
content = re.sub(r"log\s*(\.\w+)*\(", "noop(", content)
content = re.sub(r"\b(\w+\.)*(open|file)\s*\(", "fake_open(", content)
content = content.replace("parse_requirements(", "fake_parse(")
version_re = re.compile(r"^.*import.*__version__.*$", re.MULTILINE)
content = re.sub(version_re, "", content)
# Set variables likely to be imported
__version__ = "0.0.1+dependabot"
__author__ = "someone"
__title__ = "something"
__description__ = "something"
__author_email__ = "something"
__license__ = "something"
__url__ = "something"
# Run as main (since setup.py is a script)
__name__ = "__main__"
# Exec the setup.py
exec(content) in globals(), locals()
if os.path.isfile(setup_cfg_path):
try:
config = configparser.ConfigParser()
config.read(setup_cfg_path)
for req_type in [
"setup_requires",
"install_requires",
"tests_require",
]:
requires = config.get(
'options',
req_type, fallback='').splitlines()
requires = [req for req in requires if req.strip()]
parse_requirements(requires, req_type, setup_cfg)
if config.has_section('options.extras_require'):
extras_require = config._sections['options.extras_require']
for key, value in extras_require.items():
requires = value.splitlines()
requires = [req for req in requires if req.strip()]
parse_requirements(
requires,
f"extras_require:{key}",
setup_cfg
)
except Exception as e:
print(json.dumps({"error": repr(e)}))
exit(1)
return json.dumps({"result": setup_packages})