556 lines
22 KiB
Python
Executable file
556 lines
22 KiB
Python
Executable file
#!/usr/bin/env python
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#
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# Command line tool to take in ESP-IDF sdkconfig files with project
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# settings and output data in multiple formats (update config, generate
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# header file, generate .cmake include file, documentation, etc).
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#
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# Used internally by the ESP-IDF build system. But designed to be
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# non-IDF-specific.
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#
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# Copyright 2018 Espressif Systems (Shanghai) PTE LTD
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http:#www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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from __future__ import print_function
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import argparse
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import fnmatch
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import json
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import os
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import os.path
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import re
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import sys
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import tempfile
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import gen_kconfig_doc
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import kconfiglib
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__version__ = "0.1"
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if "IDF_CMAKE" not in os.environ:
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os.environ["IDF_CMAKE"] = ""
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class DeprecatedOptions(object):
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_REN_FILE = 'sdkconfig.rename'
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_DEP_OP_BEGIN = '# Deprecated options for backward compatibility'
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_DEP_OP_END = '# End of deprecated options'
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_RE_DEP_OP_BEGIN = re.compile(_DEP_OP_BEGIN)
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_RE_DEP_OP_END = re.compile(_DEP_OP_END)
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def __init__(self, config_prefix, path_rename_files, ignore_dirs=()):
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self.config_prefix = config_prefix
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# r_dic maps deprecated options to new options; rev_r_dic maps in the opposite direction
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self.r_dic, self.rev_r_dic = self._parse_replacements(path_rename_files, ignore_dirs)
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# note the '=' at the end of regex for not getting partial match of configs
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self._RE_CONFIG = re.compile(r'{}(\w+)='.format(self.config_prefix))
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def _parse_replacements(self, repl_dir, ignore_dirs):
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rep_dic = {}
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rev_rep_dic = {}
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def remove_config_prefix(string):
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if string.startswith(self.config_prefix):
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return string[len(self.config_prefix):]
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raise RuntimeError('Error in {} (line {}): Config {} is not prefixed with {}'
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''.format(rep_path, line_number, string, self.config_prefix))
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for root, dirnames, filenames in os.walk(repl_dir):
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for filename in fnmatch.filter(filenames, self._REN_FILE):
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rep_path = os.path.join(root, filename)
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if rep_path.startswith(ignore_dirs):
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print('Ignoring: {}'.format(rep_path))
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continue
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with open(rep_path) as f_rep:
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for line_number, line in enumerate(f_rep, start=1):
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sp_line = line.split()
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if len(sp_line) == 0 or sp_line[0].startswith('#'):
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# empty line or comment
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continue
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if len(sp_line) != 2 or not all(x.startswith(self.config_prefix) for x in sp_line):
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raise RuntimeError('Syntax error in {} (line {})'.format(rep_path, line_number))
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if sp_line[0] in rep_dic:
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raise RuntimeError('Error in {} (line {}): Replacement {} exist for {} and new '
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'replacement {} is defined'.format(rep_path, line_number,
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rep_dic[sp_line[0]], sp_line[0],
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sp_line[1]))
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(dep_opt, new_opt) = (remove_config_prefix(x) for x in sp_line)
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rep_dic[dep_opt] = new_opt
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rev_rep_dic[new_opt] = dep_opt
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return rep_dic, rev_rep_dic
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def get_deprecated_option(self, new_option):
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return self.rev_r_dic.get(new_option, None)
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def get_new_option(self, deprecated_option):
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return self.r_dic.get(deprecated_option, None)
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def replace(self, sdkconfig_in, sdkconfig_out):
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replace_enabled = True
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with open(sdkconfig_in, 'r') as f_in, open(sdkconfig_out, 'w') as f_out:
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for line_num, line in enumerate(f_in, start=1):
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if self._RE_DEP_OP_BEGIN.search(line):
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replace_enabled = False
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elif self._RE_DEP_OP_END.search(line):
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replace_enabled = True
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elif replace_enabled:
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m = self._RE_CONFIG.search(line)
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if m and m.group(1) in self.r_dic:
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depr_opt = self.config_prefix + m.group(1)
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new_opt = self.config_prefix + self.r_dic[m.group(1)]
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line = line.replace(depr_opt, new_opt)
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print('{}:{} {} was replaced with {}'.format(sdkconfig_in, line_num, depr_opt, new_opt))
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f_out.write(line)
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def append_doc(self, config, path_output):
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def option_was_written(opt):
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return any(gen_kconfig_doc.node_should_write(node) for node in config.syms[opt].nodes)
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if len(self.r_dic) > 0:
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with open(path_output, 'a') as f_o:
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header = 'Deprecated options and their replacements'
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f_o.write('.. _configuration-deprecated-options:\n\n{}\n{}\n\n'.format(header, '-' * len(header)))
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for dep_opt in sorted(self.r_dic):
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new_opt = self.r_dic[dep_opt]
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if new_opt not in config.syms or (config.syms[new_opt].choice is None and option_was_written(new_opt)):
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# everything except config for a choice (no link reference for those in the docs)
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f_o.write('- {}{} (:ref:`{}{}`)\n'.format(config.config_prefix, dep_opt,
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config.config_prefix, new_opt))
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if new_opt in config.named_choices:
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# here are printed config options which were filtered out
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syms = config.named_choices[new_opt].syms
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for sym in syms:
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if sym.name in self.rev_r_dic:
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# only if the symbol has been renamed
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dep_name = self.rev_r_dic[sym.name]
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# config options doesn't have references
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f_o.write(' - {}{}\n'.format(config.config_prefix, dep_name))
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def append_config(self, config, path_output):
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tmp_list = []
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def append_config_node_process(node):
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item = node.item
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if isinstance(item, kconfiglib.Symbol) and item.env_var is None:
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if item.name in self.rev_r_dic:
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c_string = item.config_string
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if c_string:
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tmp_list.append(c_string.replace(self.config_prefix + item.name,
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self.config_prefix + self.rev_r_dic[item.name]))
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config.walk_menu(append_config_node_process)
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if len(tmp_list) > 0:
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with open(path_output, 'a') as f_o:
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f_o.write('\n{}\n'.format(self._DEP_OP_BEGIN))
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f_o.writelines(tmp_list)
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f_o.write('{}\n'.format(self._DEP_OP_END))
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def append_header(self, config, path_output):
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if len(self.r_dic) > 0:
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with open(path_output, 'a') as f_o:
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f_o.write('\n/* List of deprecated options */\n')
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for dep_opt in sorted(self.r_dic):
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new_opt = self.r_dic[dep_opt]
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f_o.write('#ifdef {}{}\n#define {}{} {}{}\n#endif\n\n'.format(self.config_prefix, new_opt,
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self.config_prefix, dep_opt, self.config_prefix, new_opt))
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def main():
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parser = argparse.ArgumentParser(description='confgen.py v%s - Config Generation Tool' % __version__, prog=os.path.basename(sys.argv[0]))
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parser.add_argument('--config',
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help='Project configuration settings',
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nargs='?',
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default=None)
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parser.add_argument('--defaults',
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help='Optional project defaults file, used if --config file doesn\'t exist. '
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'Multiple files can be specified using multiple --defaults arguments.',
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nargs='?',
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default=[],
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action='append')
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parser.add_argument('--kconfig',
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help='KConfig file with config item definitions',
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required=True)
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parser.add_argument('--output', nargs=2, action='append',
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help='Write output file (format and output filename)',
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metavar=('FORMAT', 'FILENAME'),
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default=[])
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parser.add_argument('--env', action='append', default=[],
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help='Environment to set when evaluating the config file', metavar='NAME=VAL')
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parser.add_argument('--env-file', type=argparse.FileType('r'),
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help='Optional file to load environment variables from. Contents '
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'should be a JSON object where each key/value pair is a variable.')
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args = parser.parse_args()
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for fmt, filename in args.output:
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if fmt not in OUTPUT_FORMATS.keys():
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print("Format '%s' not recognised. Known formats: %s" % (fmt, OUTPUT_FORMATS.keys()))
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sys.exit(1)
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try:
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args.env = [(name,value) for (name,value) in (e.split("=",1) for e in args.env)]
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except ValueError:
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print("--env arguments must each contain =. To unset an environment variable, use 'ENV='")
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sys.exit(1)
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for name, value in args.env:
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os.environ[name] = value
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if args.env_file is not None:
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env = json.load(args.env_file)
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os.environ.update(env)
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config = kconfiglib.Kconfig(args.kconfig)
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config.disable_redun_warnings()
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config.disable_override_warnings()
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if len(args.defaults) > 0:
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# always load defaults first, so any items which are not defined in that config
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# will have the default defined in the defaults file
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for name in args.defaults:
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print("Loading defaults file %s..." % name)
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if not os.path.exists(name):
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raise RuntimeError("Defaults file not found: %s" % name)
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config.load_config(name, replace=False)
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# don't collect rename options from examples because those are separate projects and no need to "stay compatible"
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# with example projects
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deprecated_options = DeprecatedOptions(config.config_prefix, path_rename_files=os.environ["IDF_PATH"],
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ignore_dirs=(os.path.join(os.environ["IDF_PATH"], 'examples')))
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# If config file previously exists, load it
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if args.config and os.path.exists(args.config):
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# ... but replace deprecated options before that
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with tempfile.NamedTemporaryFile(prefix="confgen_tmp", delete=False) as f:
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temp_file = f.name
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try:
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deprecated_options.replace(sdkconfig_in=args.config, sdkconfig_out=temp_file)
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config.load_config(temp_file, replace=False)
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update_if_changed(temp_file, args.config)
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finally:
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try:
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os.remove(temp_file)
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except OSError:
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pass
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# Output the files specified in the arguments
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for output_type, filename in args.output:
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with tempfile.NamedTemporaryFile(prefix="confgen_tmp", delete=False) as f:
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temp_file = f.name
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try:
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output_function = OUTPUT_FORMATS[output_type]
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output_function(deprecated_options, config, temp_file)
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update_if_changed(temp_file, filename)
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finally:
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try:
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os.remove(temp_file)
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except OSError:
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pass
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def write_config(deprecated_options, config, filename):
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CONFIG_HEADING = """#
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# Automatically generated file. DO NOT EDIT.
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# Espressif IoT Development Framework (ESP-IDF) Project Configuration
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#
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"""
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config.write_config(filename, header=CONFIG_HEADING)
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deprecated_options.append_config(config, filename)
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def write_makefile(deprecated_options, config, filename):
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CONFIG_HEADING = """#
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# Automatically generated file. DO NOT EDIT.
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# Espressif IoT Development Framework (ESP-IDF) Project Makefile Configuration
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#
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"""
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with open(filename, "w") as f:
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tmp_dep_lines = []
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f.write(CONFIG_HEADING)
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def get_makefile_config_string(name, value, orig_type):
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if orig_type in (kconfiglib.BOOL, kconfiglib.TRISTATE):
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return "{}{}={}\n".format(config.config_prefix, name, '' if value == 'n' else value)
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elif orig_type in (kconfiglib.INT, kconfiglib.HEX):
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return "{}{}={}\n".format(config.config_prefix, name, value)
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elif orig_type == kconfiglib.STRING:
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return '{}{}="{}"\n'.format(config.config_prefix, name, kconfiglib.escape(value))
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else:
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raise RuntimeError('{}{}: unknown type {}'.format(config.config_prefix, name, orig_type))
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def write_makefile_node(node):
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item = node.item
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if isinstance(item, kconfiglib.Symbol) and item.env_var is None:
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# item.config_string cannot be used because it ignores hidden config items
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val = item.str_value
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f.write(get_makefile_config_string(item.name, val, item.orig_type))
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dep_opt = deprecated_options.get_deprecated_option(item.name)
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if dep_opt:
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# the same string but with the deprecated name
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tmp_dep_lines.append(get_makefile_config_string(dep_opt, val, item.orig_type))
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config.walk_menu(write_makefile_node, True)
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if len(tmp_dep_lines) > 0:
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f.write('\n# List of deprecated options\n')
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f.writelines(tmp_dep_lines)
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def write_header(deprecated_options, config, filename):
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CONFIG_HEADING = """/*
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* Automatically generated file. DO NOT EDIT.
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* Espressif IoT Development Framework (ESP-IDF) Configuration Header
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*/
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#pragma once
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"""
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config.write_autoconf(filename, header=CONFIG_HEADING)
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deprecated_options.append_header(config, filename)
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def write_cmake(deprecated_options, config, filename):
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with open(filename, "w") as f:
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tmp_dep_list = []
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write = f.write
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prefix = config.config_prefix
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write("""#
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# Automatically generated file. DO NOT EDIT.
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# Espressif IoT Development Framework (ESP-IDF) Configuration cmake include file
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#
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""")
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configs_list = list()
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def write_node(node):
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sym = node.item
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if not isinstance(sym, kconfiglib.Symbol):
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return
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if sym.config_string:
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val = sym.str_value
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if sym.orig_type in (kconfiglib.BOOL, kconfiglib.TRISTATE) and val == "n":
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val = "" # write unset values as empty variables
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write("set({}{} \"{}\")\n".format(
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prefix, sym.name, val))
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configs_list.append(prefix + sym.name)
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dep_opt = deprecated_options.get_deprecated_option(sym.name)
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if dep_opt:
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tmp_dep_list.append("set({}{} \"{}\")\n".format(prefix, dep_opt, val))
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configs_list.append(prefix + dep_opt)
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config.walk_menu(write_node)
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write("set(CONFIGS_LIST {})".format(";".join(configs_list)))
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if len(tmp_dep_list) > 0:
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write('\n# List of deprecated options for backward compatibility\n')
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f.writelines(tmp_dep_list)
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def get_json_values(config):
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config_dict = {}
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def write_node(node):
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sym = node.item
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if not isinstance(sym, kconfiglib.Symbol):
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return
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if sym.config_string:
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val = sym.str_value
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if sym.type in [kconfiglib.BOOL, kconfiglib.TRISTATE]:
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val = (val != "n")
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elif sym.type == kconfiglib.HEX:
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val = int(val, 16)
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elif sym.type == kconfiglib.INT:
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val = int(val)
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config_dict[sym.name] = val
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config.walk_menu(write_node)
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return config_dict
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def write_json(deprecated_options, config, filename):
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config_dict = get_json_values(config)
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with open(filename, "w") as f:
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json.dump(config_dict, f, indent=4, sort_keys=True)
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def get_menu_node_id(node):
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""" Given a menu node, return a unique id
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which can be used to identify it in the menu structure
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Will either be the config symbol name, or a menu identifier
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'slug'
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"""
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try:
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if not isinstance(node.item, kconfiglib.Choice):
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return node.item.name
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except AttributeError:
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pass
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result = []
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while node.parent is not None:
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slug = re.sub(r'\W+', '-', node.prompt[0]).lower()
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result.append(slug)
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node = node.parent
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result = "-".join(reversed(result))
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return result
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def write_json_menus(deprecated_options, config, filename):
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existing_ids = set()
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result = [] # root level items
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node_lookup = {} # lookup from MenuNode to an item in result
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def write_node(node):
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try:
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json_parent = node_lookup[node.parent]["children"]
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except KeyError:
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assert node.parent not in node_lookup # if fails, we have a parent node with no "children" entity (ie a bug)
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json_parent = result # root level node
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# node.kconfig.y means node has no dependency,
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if node.dep is node.kconfig.y:
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depends = None
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else:
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depends = kconfiglib.expr_str(node.dep)
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try:
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is_menuconfig = node.is_menuconfig
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except AttributeError:
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is_menuconfig = False
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new_json = None
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if node.item == kconfiglib.MENU or is_menuconfig:
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new_json = {"type": "menu",
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"title": node.prompt[0],
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"depends_on": depends,
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"children": [],
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}
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if is_menuconfig:
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sym = node.item
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new_json["name"] = sym.name
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new_json["help"] = node.help
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new_json["is_menuconfig"] = is_menuconfig
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greatest_range = None
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if len(sym.ranges) > 0:
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# Note: Evaluating the condition using kconfiglib's expr_value
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# should have one condition which is true
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for min_range, max_range, cond_expr in sym.ranges:
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if kconfiglib.expr_value(cond_expr):
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greatest_range = [min_range, max_range]
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new_json["range"] = greatest_range
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elif isinstance(node.item, kconfiglib.Symbol):
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sym = node.item
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greatest_range = None
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if len(sym.ranges) > 0:
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# Note: Evaluating the condition using kconfiglib's expr_value
|
|
# should have one condition which is true
|
|
for min_range, max_range, cond_expr in sym.ranges:
|
|
if kconfiglib.expr_value(cond_expr):
|
|
base = 16 if sym.type == kconfiglib.HEX else 10
|
|
greatest_range = [int(min_range.str_value, base), int(max_range.str_value, base)]
|
|
break
|
|
|
|
new_json = {
|
|
"type": kconfiglib.TYPE_TO_STR[sym.type],
|
|
"name": sym.name,
|
|
"title": node.prompt[0] if node.prompt else None,
|
|
"depends_on": depends,
|
|
"help": node.help,
|
|
"range": greatest_range,
|
|
"children": [],
|
|
}
|
|
elif isinstance(node.item, kconfiglib.Choice):
|
|
choice = node.item
|
|
new_json = {
|
|
"type": "choice",
|
|
"title": node.prompt[0],
|
|
"name": choice.name,
|
|
"depends_on": depends,
|
|
"help": node.help,
|
|
"children": []
|
|
}
|
|
|
|
if new_json:
|
|
node_id = get_menu_node_id(node)
|
|
if node_id in existing_ids:
|
|
raise RuntimeError("Config file contains two items with the same id: %s (%s). " +
|
|
"Please rename one of these items to avoid ambiguity." % (node_id, node.prompt[0]))
|
|
new_json["id"] = node_id
|
|
|
|
json_parent.append(new_json)
|
|
node_lookup[node] = new_json
|
|
|
|
config.walk_menu(write_node)
|
|
with open(filename, "w") as f:
|
|
f.write(json.dumps(result, sort_keys=True, indent=4))
|
|
|
|
|
|
def write_docs(deprecated_options, config, filename):
|
|
gen_kconfig_doc.write_docs(config, filename)
|
|
deprecated_options.append_doc(config, filename)
|
|
|
|
|
|
def update_if_changed(source, destination):
|
|
with open(source, "r") as f:
|
|
source_contents = f.read()
|
|
|
|
if os.path.exists(destination):
|
|
with open(destination, "r") as f:
|
|
dest_contents = f.read()
|
|
if source_contents == dest_contents:
|
|
return # nothing to update
|
|
|
|
with open(destination, "w") as f:
|
|
f.write(source_contents)
|
|
|
|
|
|
OUTPUT_FORMATS = {"config": write_config,
|
|
"makefile": write_makefile, # only used with make in order to generate auto.conf
|
|
"header": write_header,
|
|
"cmake": write_cmake,
|
|
"docs": write_docs,
|
|
"json": write_json,
|
|
"json_menus": write_json_menus,
|
|
}
|
|
|
|
|
|
class FatalError(RuntimeError):
|
|
"""
|
|
Class for runtime errors (not caused by bugs but by user input).
|
|
"""
|
|
pass
|
|
|
|
|
|
if __name__ == '__main__':
|
|
try:
|
|
main()
|
|
except FatalError as e:
|
|
print("A fatal error occurred: %s" % e)
|
|
sys.exit(2)
|