esp-idf/tools/check_python_dependencies.py

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6.0 KiB
Python
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#!/usr/bin/env python
#
# SPDX-FileCopyrightText: 2018-2022 Espressif Systems (Shanghai) CO LTD
# SPDX-License-Identifier: Apache-2.0
import argparse
import os
import re
import sys
try:
import pkg_resources
except ImportError:
print('pkg_resources cannot be imported. The most common cause is a missing pip or setuptools package. '
'If you\'ve installed a custom Python then these packages are provided separately and have to be installed as well. '
'Please refer to the Get Started section of the ESP-IDF Programming Guide for setting up the required packages.')
sys.exit(1)
try:
from typing import Set
except ImportError:
# This is a script run during the early phase of setting up the environment. So try to avoid failure caused by
# Python version incompatibility. The supported Python version is checked elsewhere.
pass
PYTHON_PACKAGE_RE = re.compile(r'[^<>=~]+')
if __name__ == '__main__':
parser = argparse.ArgumentParser(description='ESP-IDF Python package dependency checker')
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parser.add_argument('--requirements', '-r',
help='Path to a requirements file (can be used multiple times)',
action='append', default=[])
parser.add_argument('--constraints', '-c', default=[],
help='Path to a constraints file (can be used multiple times)',
action='append')
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args = parser.parse_args()
required_set = set()
for req_path in args.requirements:
with open(req_path) as f:
required_set |= set(i for i in map(str.strip, f.readlines()) if len(i) > 0 and not i.startswith('#'))
constr_dict = {} # for example package_name -> package_name==1.0
for const_path in args.constraints:
with open(const_path) as f:
for con in [i for i in map(str.strip, f.readlines()) if len(i) > 0 and not i.startswith('#')]:
if con.startswith('file://'):
con = os.path.basename(con)
elif con.startswith('--only-binary'):
continue
elif con.startswith('-e') and '#egg=' in con: # version control URLs, take the egg= part at the end only
con_m = re.search(r'#egg=([^\s]+)', con)
if not con_m:
print('Malformed input. Cannot find name in {}'.format(con))
sys.exit(1)
con = con_m[1]
name_m = PYTHON_PACKAGE_RE.search(con)
if not name_m:
print('Malformed input. Cannot find name in {}'.format(con))
sys.exit(1)
constr_dict[name_m[0]] = con
not_satisfied = [] # in string form which will be printed
# already_checked set is used in order to avoid circular checks which would cause looping.
already_checked = set() # type: Set[pkg_resources.Requirement]
# required_set contains package names in string form without version constraints. If the package has a constraint
# specification (package name + version requirement) then use that instead. new_req_list is used to store
# requirements to be checked on each level of breath-first-search of the package dependency tree. The initial
# version is the direct dependencies deduced from the requirements arguments of the script.
new_req_list = [pkg_resources.Requirement.parse(constr_dict.get(i, i)) for i in required_set]
while new_req_list:
req_list = new_req_list
new_req_list = []
already_checked.update(req_list)
for requirement in req_list: # check one level of the dependency tree
try:
dependency_requirements = set(pkg_resources.get_distribution(requirement).requires())
# dependency_requirements are the direct dependencies of "requirement". They belong to the next level
# of the dependency tree. They will be checked only if they haven't been already. Note that the
# version is taken into account as well because packages can have different requirements for a given
# Python package. The dependencies need to be checked for all of them because they can be different.
new_req_list.extend(dependency_requirements - already_checked)
except pkg_resources.ResolutionError as e:
not_satisfied.append(' - '.join([str(requirement), str(e)]))
except IndexError:
# If the requirement is not installed because of a marker (requirement.marker), for example different
# operating system or python version, then pkg_resources.get_distribution() will fail with IndexError.
# We could avoid this by checking packaging.markers.Marker(requirement.marker).evaluate() but it would
# add dependency on packaging.
pass
if len(not_satisfied) > 0:
print('The following Python requirements are not satisfied:')
print(os.linesep.join(not_satisfied))
if 'IDF_PYTHON_ENV_PATH' in os.environ:
# We are running inside a private virtual environment under IDF_TOOLS_PATH,
# ask the user to run install.bat again.
install_script = 'install.bat' if sys.platform == 'win32' else 'install.sh'
print('To install the missing packages, please run "{}"'.format(install_script))
else:
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print('Please follow the instructions found in the "Set up the tools" section of '
'ESP-IDF Getting Started Guide.')
print('Diagnostic information:')
idf_python_env_path = os.environ.get('IDF_PYTHON_ENV_PATH')
print(' IDF_PYTHON_ENV_PATH: {}'.format(idf_python_env_path or '(not set)'))
print(' Python interpreter used: {}'.format(sys.executable))
if not idf_python_env_path or idf_python_env_path not in sys.executable:
print(' Warning: python interpreter not running from IDF_PYTHON_ENV_PATH')
print(' PATH: {}'.format(os.getenv('PATH')))
sys.exit(1)
print('Python requirements are satisfied.')