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configure.py
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configure.py
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# Copyright 2023 The TensorFlow Authors. All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
# ==============================================================================
# Usage: configure.py [--quiet] [--no-deps]
#
# Options:
# --quiet Give less output.
# --no-deps Don't install Python dependencies
"""Configures BigQuery ML Utils to be built from source."""
import argparse
import logging
import os
import subprocess
import sys
from typing import List
_BAZELRC = '.bazelrc'
_BAZEL_QUERY = '.bazel-query.sh'
_PYTHON_BIN_PATH = 'python_bin_path.sh'
# Writes variables to bazelrc file
def write_to_bazelrc(line: str):
with open(_BAZELRC, 'a') as f:
f.write(line + '\n')
def write_action_env(var_name: str, var: str):
write_to_bazelrc('build --action_env %s="%s"' % (var_name, str(var)))
with open(_BAZEL_QUERY, 'a') as f:
f.write('{}="{}" '.format(var_name, var))
def generate_shared_lib_name(tf_lflags: List[str]) -> str:
"""Converts the linkflag namespec to the full shared library name.
Args:
tf_lflags: List of linkflag namespec. The first entry specifies the
directory containing the TensorFlow framework library. The second entry
specifies the name of the Tensorflow shared lib (For Linux,
'-l:libtensorflow_framework.so.%s' % version).
Returns:
Name of the Tensorflow shared lib.
"""
# Assume Linux for now
return tf_lflags[1][3:]
def create_build_configuration():
"""Main function to create build configuration."""
if os.path.isfile(_BAZELRC):
os.remove(_BAZELRC)
if os.path.isfile(_BAZEL_QUERY):
os.remove(_BAZEL_QUERY)
if os.path.isfile(_PYTHON_BIN_PATH):
os.remove(_PYTHON_BIN_PATH)
environ_cp = dict(os.environ)
setup_python(environ_cp)
print()
print('Configuring BigQuery ML Utils to be built from source...')
pip_install_options = ['--upgrade']
parser = argparse.ArgumentParser()
parser.add_argument('--quiet', action='store_true', help='Give less output.')
parser.add_argument(
'--no-deps',
action='store_true',
help='Do not check and install Python dependencies.',
)
args = parser.parse_args()
if args.quiet:
pip_install_options.append('--quiet')
with open('requirements.txt') as f:
required_packages = f.read().splitlines()
print()
if args.no_deps:
print('> Using pre-installed Tensorflow.')
else:
print('> Installing', required_packages)
install_cmd = [environ_cp['PYTHON_BIN_PATH'], '-m', 'pip', 'install']
install_cmd.extend(pip_install_options)
install_cmd.extend(required_packages)
subprocess.check_call(install_cmd)
logging.disable(logging.WARNING)
import tensorflow.compat.v2 as tf # pylint: disable=g-import-not-at-top
# pylint: disable=invalid-name
_TF_CFLAGS = tf.sysconfig.get_compile_flags()
_TF_LFLAGS = tf.sysconfig.get_link_flags()
_TF_CXX11_ABI_FLAG = tf.sysconfig.CXX11_ABI_FLAG
_TF_SHARED_LIBRARY_NAME = generate_shared_lib_name(_TF_LFLAGS)
_TF_HEADER_DIR = _TF_CFLAGS[0][2:]
_TF_SHARED_LIBRARY_DIR = _TF_LFLAGS[0][2:]
# pylint: enable=invalid-name
write_action_env('TF_HEADER_DIR', _TF_HEADER_DIR)
write_action_env('TF_SHARED_LIBRARY_DIR', _TF_SHARED_LIBRARY_DIR)
write_action_env('TF_SHARED_LIBRARY_NAME', _TF_SHARED_LIBRARY_NAME)
write_action_env('TF_CXX11_ABI_FLAG', _TF_CXX11_ABI_FLAG)
write_action_env('BAZEL_CXXOPTS', '-std=c++17')
write_to_bazelrc('build --spawn_strategy=standalone')
write_to_bazelrc('build --strategy=Genrule=standalone')
write_to_bazelrc('build --experimental_repo_remote_exec')
write_to_bazelrc('build --experimental_cc_shared_library')
write_to_bazelrc('build -c opt')
print()
print('Build configurations successfully written to', _BAZELRC)
print()
with open(_BAZEL_QUERY, 'a') as f:
f.write('bazel query "$@"')
def setup_python(environ_cp):
"""Setup python related env variables."""
# Get PYTHON_BIN_PATH, default is the current running python.
default_python_bin_path = sys.executable
ask_python_bin_path = (
'Please specify the location of python. [Enter to use the default: {}]: '
).format(default_python_bin_path)
while True:
python_bin_path = get_from_env_or_user_or_default(
environ_cp,
'PYTHON_BIN_PATH',
ask_python_bin_path,
default_python_bin_path,
)
# Check if the path is valid
if os.path.isfile(python_bin_path) and os.access(python_bin_path, os.X_OK):
break
elif not os.path.exists(python_bin_path):
print('Invalid python path: {} cannot be found.'.format(python_bin_path))
else:
print(
'{} is not executable. Is it the python binary?'.format(
python_bin_path
)
)
environ_cp['PYTHON_BIN_PATH'] = ''
# Get PYTHON_LIB_PATH
python_lib_path = environ_cp.get('PYTHON_LIB_PATH')
if not python_lib_path:
python_lib_paths = get_python_path(environ_cp, python_bin_path)
if environ_cp.get('USE_DEFAULT_PYTHON_LIB_PATH') == '1':
python_lib_path = python_lib_paths[0]
else:
print(
'Found possible Python library paths:\n %s'
% '\n '.join(python_lib_paths)
)
default_python_lib_path = python_lib_paths[0]
python_lib_path = get_input(
'Please input the desired Python library path to use. '
'Enter to use the default: [{}]\n'.format(python_lib_paths[0])
)
if not python_lib_path:
python_lib_path = default_python_lib_path
environ_cp['PYTHON_LIB_PATH'] = python_lib_path
# Set-up env variables used by python_configure.bzl
write_action_env('PYTHON_BIN_PATH', python_bin_path)
write_action_env('PYTHON_LIB_PATH', python_lib_path)
write_to_bazelrc('build --python_path="{}"'.format(python_bin_path))
environ_cp['PYTHON_BIN_PATH'] = python_bin_path
# If choosen python_lib_path is from a path specified in the PYTHONPATH
# variable, need to tell bazel to include PYTHONPATH
if environ_cp.get('PYTHONPATH'):
python_paths = environ_cp.get('PYTHONPATH').split(':')
if python_lib_path in python_paths:
write_action_env('PYTHONPATH', environ_cp.get('PYTHONPATH'))
# Write tools/python_bin_path.sh
with open(_PYTHON_BIN_PATH, 'a') as f:
f.write('export PYTHON_BIN_PATH="{}"'.format(python_bin_path))
def get_from_env_or_user_or_default(
environ_cp, var_name, ask_for_var, var_default
):
"""Get var_name either from env, or user or default.
If var_name has been set as environment variable, use the preset value, else
ask for user input. If no input is provided, the default is used.
Args:
environ_cp: copy of the os.environ.
var_name: string for name of environment variable, e.g. "TF_NEED_CUDA".
ask_for_var: string for how to ask for user input.
var_default: default value string.
Returns:
string value for var_name
"""
var = environ_cp.get(var_name)
if not var:
var = get_input(ask_for_var)
print('\n')
if not var:
var = var_default
return var
def get_python_path(environ_cp, python_bin_path):
"""Get the python site package paths."""
python_paths = []
if environ_cp.get('PYTHONPATH'):
python_paths = environ_cp.get('PYTHONPATH').split(':')
try:
stderr = open(os.devnull, 'wb')
library_paths = run_shell(
[
python_bin_path,
'-c',
'import site; print("\\n".join(site.getsitepackages()))',
],
stderr=stderr,
).split('\n')
except subprocess.CalledProcessError:
library_paths = [
run_shell([
python_bin_path,
'-c',
(
'from distutils.sysconfig import get_python_lib;'
'print(get_python_lib())'
),
])
]
all_paths = set(python_paths + library_paths)
# Sort set so order is deterministic
all_paths = sorted(all_paths)
paths = []
for path in all_paths:
if os.path.isdir(path):
paths.append(path)
return paths
def get_input(question):
try:
try:
answer = raw_input(question)
except NameError:
answer = input(question) # pylint: disable=bad-builtin
except EOFError:
answer = ''
return answer
def run_shell(cmd, allow_non_zero=False, stderr=None):
if stderr is None:
stderr = sys.stdout
if allow_non_zero:
try:
output = subprocess.check_output(cmd, stderr=stderr)
except subprocess.CalledProcessError as e:
output = e.output
else:
output = subprocess.check_output(cmd, stderr=stderr)
return output.decode('UTF-8').strip()
if __name__ == '__main__':
create_build_configuration()