Best Python code snippet using autotest_python
build_externals.py
Source:build_externals.py
...56 os.environ[env_python_path_varname] = ':'.join([57 install_dir, env_python_path])58 fetched_packages, fetch_errors = fetch_necessary_packages(package_dir,59 install_dir)60 install_errors = build_and_install_packages(fetched_packages, install_dir)61 # Byte compile the code after it has been installed in its final62 # location as .pyc files contain the path passed to compile_dir().63 # When printing exception tracebacks, python uses that path first to look64 # for the source code before checking the directory of the .pyc file.65 # Don't leave references to our temporary build dir in the files.66 logging.info('compiling .py files in %s to .pyc', install_dir)67 compileall.compile_dir(install_dir, quiet=True)68 # Some things install with whacky permissions, fix that.69 external_packages.system("chmod -R a+rX '%s'" % install_dir)70 errors = fetch_errors + install_errors71 for error_msg in errors:72 logging.error(error_msg)73 return len(errors)74def fetch_necessary_packages(dest_dir, install_dir):75 """76 Fetches all ExternalPackages into dest_dir.77 :param dest_dir: Directory the packages should be fetched into.78 :param install_dir: Directory where packages will later installed.79 :return: A tuple containing two lists:80 * A list of ExternalPackage instances that were fetched and81 need to be installed.82 * A list of error messages for any failed fetches.83 """84 names_to_check = sys.argv[1:]85 errors = []86 fetched_packages = []87 for package_class in external_packages.ExternalPackage.subclasses:88 package = package_class()89 if names_to_check and package.name.lower() not in names_to_check:90 continue91 if not package.is_needed(install_dir):92 logging.info('A new %s is not needed on this system.',93 package.name)94 if INSTALL_ALL:95 logging.info('Installing anyways...')96 else:97 continue98 if not package.fetch(dest_dir):99 msg = 'Unable to download %s' % package.name100 logging.error(msg)101 errors.append(msg)102 else:103 fetched_packages.append(package)104 return fetched_packages, errors105def build_and_install_packages(packages, install_dir):106 """107 Builds and installs all packages into install_dir.108 :param packages - A list of already fetched ExternalPackage instances.109 :param install_dir - Directory the packages should be installed into.110 :return: A list of error messages for any installs that failed.111 """112 errors = []113 for package in packages:114 if not package.build_and_install(install_dir):115 msg = 'Unable to build and install %s' % package.name116 logging.error(msg)117 errors.append(msg)118 return errors119if __name__ == '__main__':...
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