527 lines
19 KiB
Python
527 lines
19 KiB
Python
# Copyright (c) 2018 Open Source Foundries Limited.
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#
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# SPDX-License-Identifier: Apache-2.0
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'''Common code used by commands which execute runners.
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'''
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import argparse
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import logging
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from os import close, getcwd, path, fspath
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from pathlib import Path
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from subprocess import CalledProcessError
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import sys
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import tempfile
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import textwrap
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import traceback
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from west import log
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from build_helpers import find_build_dir, is_zephyr_build, \
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FIND_BUILD_DIR_DESCRIPTION
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from west.commands import CommandError
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from west.configuration import config
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import yaml
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from zephyr_ext_common import ZEPHYR_SCRIPTS
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# Runners depend on edtlib. Make sure the copy in the tree is
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# available to them before trying to import any.
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sys.path.append(str(ZEPHYR_SCRIPTS / 'dts' / 'python-devicetree' / 'src'))
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from runners import get_runner_cls, ZephyrBinaryRunner, MissingProgram
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from runners.core import RunnerConfig
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import zcmake
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# Context-sensitive help indentation.
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# Don't change this, or output from argparse won't match up.
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INDENT = ' ' * 2
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if log.VERBOSE >= log.VERBOSE_NORMAL:
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# Using level 1 allows sub-DEBUG levels of verbosity. The
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# west.log module decides whether or not to actually print the
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# message.
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#
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# https://docs.python.org/3.7/library/logging.html#logging-levels.
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LOG_LEVEL = 1
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else:
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LOG_LEVEL = logging.INFO
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def _banner(msg):
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log.inf('-- ' + msg, colorize=True)
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class WestLogFormatter(logging.Formatter):
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def __init__(self):
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super().__init__(fmt='%(name)s: %(message)s')
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class WestLogHandler(logging.Handler):
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def __init__(self, *args, **kwargs):
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super().__init__(*args, **kwargs)
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self.setFormatter(WestLogFormatter())
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self.setLevel(LOG_LEVEL)
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def emit(self, record):
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fmt = self.format(record)
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lvl = record.levelno
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if lvl > logging.CRITICAL:
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log.die(fmt)
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elif lvl >= logging.ERROR:
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log.err(fmt)
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elif lvl >= logging.WARNING:
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log.wrn(fmt)
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elif lvl >= logging.INFO:
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_banner(fmt)
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elif lvl >= logging.DEBUG:
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log.dbg(fmt)
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else:
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log.dbg(fmt, level=log.VERBOSE_EXTREME)
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def command_verb(command):
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return "flash" if command.name == "flash" else "debug"
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def add_parser_common(command, parser_adder=None, parser=None):
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if parser_adder is not None:
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parser = parser_adder.add_parser(
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command.name,
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formatter_class=argparse.RawDescriptionHelpFormatter,
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help=command.help,
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description=command.description)
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# Remember to update west-completion.bash if you add or remove
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# flags
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group = parser.add_argument_group('general options',
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FIND_BUILD_DIR_DESCRIPTION)
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group.add_argument('-d', '--build-dir', metavar='DIR',
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help='application build directory')
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# still supported for backwards compatibility, but questionably
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# useful now that we do everything with runners.yaml
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group.add_argument('-c', '--cmake-cache', metavar='FILE',
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help=argparse.SUPPRESS)
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group.add_argument('-r', '--runner',
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help='override default runner from --build-dir')
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group.add_argument('--skip-rebuild', action='store_true',
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help='do not refresh cmake dependencies first')
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group = parser.add_argument_group(
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'runner configuration',
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textwrap.dedent(f'''\
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===================================================================
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IMPORTANT:
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Individual runners support additional options not printed here.
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===================================================================
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Run "west {command.name} --context" for runner-specific options.
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If a build directory is found, --context also prints per-runner
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settings found in that build directory's runners.yaml file.
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Use "west {command.name} --context -r RUNNER" to limit output to a
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specific RUNNER.
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Some runner settings also can be overridden with options like
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--hex-file. However, this depends on the runner: not all runners
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respect --elf-file / --hex-file / --bin-file, nor use gdb or openocd,
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etc.'''))
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group.add_argument('-H', '--context', action='store_true',
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help='print runner- and build-specific help')
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# Options used to override RunnerConfig values in runners.yaml.
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# TODO: is this actually useful?
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group.add_argument('--board-dir', metavar='DIR', help='board directory')
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# FIXME: we should just have a single --file argument. The variation
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# between runners is confusing people.
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group.add_argument('--elf-file', metavar='FILE', help='path to zephyr.elf')
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group.add_argument('--hex-file', metavar='FILE', help='path to zephyr.hex')
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group.add_argument('--bin-file', metavar='FILE', help='path to zephyr.bin')
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# FIXME: these are runner-specific and should be moved to where --context
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# can find them instead.
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group.add_argument('--gdb', help='path to GDB')
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group.add_argument('--openocd', help='path to openocd')
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group.add_argument(
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'--openocd-search', metavar='DIR',
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help='path to add to openocd search path, if applicable')
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return parser
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def do_run_common(command, user_args, user_runner_args):
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# This is the main routine for all the "west flash", "west debug",
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# etc. commands.
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if user_args.context:
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dump_context(command, user_args, user_runner_args)
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return
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command_name = command.name
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build_dir = get_build_dir(user_args)
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cache = load_cmake_cache(build_dir, user_args)
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board = cache['CACHED_BOARD']
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if not user_args.skip_rebuild:
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rebuild(command, build_dir, user_args)
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# Load runners.yaml.
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yaml_path = runners_yaml_path(build_dir, board)
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runners_yaml = load_runners_yaml(yaml_path)
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# Get a concrete ZephyrBinaryRunner subclass to use based on
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# runners.yaml and command line arguments.
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runner_cls = use_runner_cls(command, board, user_args, runners_yaml,
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cache)
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runner_name = runner_cls.name()
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# Set up runner logging to delegate to west.log commands.
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logger = logging.getLogger('runners')
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logger.setLevel(LOG_LEVEL)
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logger.addHandler(WestLogHandler())
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# If the user passed -- to force the parent argument parser to stop
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# parsing, it will show up here, and needs to be filtered out.
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runner_args = [arg for arg in user_runner_args if arg != '--']
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# Arguments in this order to allow specific to override general:
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#
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# - runner-specific runners.yaml arguments
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# - user-provided command line arguments
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final_argv = runners_yaml['args'][runner_name] + runner_args
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# 'user_args' contains parsed arguments which are:
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#
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# 1. provided on the command line, and
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# 2. handled by add_parser_common(), and
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# 3. *not* runner-specific
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#
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# 'final_argv' contains unparsed arguments from either:
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#
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# 1. runners.yaml, or
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# 2. the command line
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#
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# We next have to:
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#
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# - parse 'final_argv' now that we have all the command line
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# arguments
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# - create a RunnerConfig using 'user_args' and the result
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# of parsing 'final_argv'
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parser = argparse.ArgumentParser(prog=runner_name)
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add_parser_common(command, parser=parser)
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runner_cls.add_parser(parser)
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args, unknown = parser.parse_known_args(args=final_argv)
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if unknown:
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log.die(f'runner {runner_name} received unknown arguments: {unknown}')
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# Override args with any user_args. The latter must take
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# precedence, or e.g. --hex-file on the command line would be
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# ignored in favor of a board.cmake setting.
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for a, v in vars(user_args).items():
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if v is not None:
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setattr(args, a, v)
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# Create the RunnerConfig from runners.yaml and any command line
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# overrides.
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runner_config = get_runner_config(build_dir, yaml_path, runners_yaml, args)
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log.dbg(f'runner_config: {runner_config}', level=log.VERBOSE_VERY)
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# Use that RunnerConfig to create the ZephyrBinaryRunner instance
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# and call its run().
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try:
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runner = runner_cls.create(runner_config, args)
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runner.run(command_name)
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except ValueError as ve:
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log.err(str(ve), fatal=True)
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dump_traceback()
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raise CommandError(1)
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except MissingProgram as e:
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log.die('required program', e.filename,
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'not found; install it or add its location to PATH')
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except RuntimeError as re:
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if not user_args.verbose:
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log.die(re)
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else:
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log.err('verbose mode enabled, dumping stack:', fatal=True)
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raise
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def get_build_dir(args, die_if_none=True):
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# Get the build directory for the given argument list and environment.
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if args.build_dir:
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return args.build_dir
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guess = config.get('build', 'guess-dir', fallback='never')
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guess = guess == 'runners'
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dir = find_build_dir(None, guess)
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if dir and is_zephyr_build(dir):
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return dir
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elif die_if_none:
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msg = '--build-dir was not given, '
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if dir:
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msg = msg + 'and neither {} nor {} are zephyr build directories.'
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else:
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msg = msg + ('{} is not a build directory and the default build '
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'directory cannot be determined. Check your '
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'build.dir-fmt configuration option')
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log.die(msg.format(getcwd(), dir))
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else:
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return None
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def load_cmake_cache(build_dir, args):
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cache_file = path.join(build_dir, args.cmake_cache or zcmake.DEFAULT_CACHE)
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try:
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return zcmake.CMakeCache(cache_file)
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except FileNotFoundError:
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log.die(f'no CMake cache found (expected one at {cache_file})')
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def rebuild(command, build_dir, args):
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_banner(f'west {command.name}: rebuilding')
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try:
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zcmake.run_build(build_dir)
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except CalledProcessError:
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if args.build_dir:
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log.die(f're-build in {args.build_dir} failed')
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else:
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log.die(f're-build in {build_dir} failed (no --build-dir given)')
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def runners_yaml_path(build_dir, board):
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ret = Path(build_dir) / 'zephyr' / 'runners.yaml'
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if not ret.is_file():
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log.die(f'either a pristine build is needed, or board {board} '
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"doesn't support west flash/debug "
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'(no ZEPHYR_RUNNERS_YAML in CMake cache)')
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return ret
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def load_runners_yaml(path):
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# Load runners.yaml and convert to Python object.
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try:
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with open(path, 'r') as f:
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content = yaml.safe_load(f.read())
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except FileNotFoundError:
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log.die(f'runners.yaml file not found: {path}')
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if not content.get('runners'):
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log.wrn(f'no pre-configured runners in {path}; '
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"this probably won't work")
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return content
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def use_runner_cls(command, board, args, runners_yaml, cache):
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# Get the ZephyrBinaryRunner class from its name, and make sure it
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# supports the command. Print a message about the choice, and
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# return the class.
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runner = args.runner or runners_yaml.get(command.runner_key)
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if runner is None:
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log.die(f'no {command.name} runner available for board {board}. '
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"Check the board's documentation for instructions.")
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_banner(f'west {command.name}: using runner {runner}')
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available = runners_yaml.get('runners', [])
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if runner not in available:
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if 'BOARD_DIR' in cache:
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board_cmake = Path(cache['BOARD_DIR']) / 'board.cmake'
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else:
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board_cmake = 'board.cmake'
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log.err(f'board {board} does not support runner {runner}',
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fatal=True)
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log.inf(f'To fix, configure this runner in {board_cmake} and rebuild.')
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sys.exit(1)
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try:
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runner_cls = get_runner_cls(runner)
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except ValueError as e:
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log.die(e)
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if command.name not in runner_cls.capabilities().commands:
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log.die(f'runner {runner} does not support command {command.name}')
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return runner_cls
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def get_runner_config(build_dir, yaml_path, runners_yaml, args=None):
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# Get a RunnerConfig object for the current run. yaml_config is
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# runners.yaml's config: map, and args are the command line arguments.
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yaml_config = runners_yaml['config']
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yaml_dir = yaml_path.parent
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if args is None:
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args = argparse.Namespace()
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def output_file(filetype):
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from_args = getattr(args, f'{filetype}_file', None)
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if from_args is not None:
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return from_args
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from_yaml = yaml_config.get(f'{filetype}_file')
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if from_yaml is not None:
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# Output paths in runners.yaml are relative to the
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# directory containing the runners.yaml file.
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return fspath(yaml_dir / from_yaml)
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return None
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def config(attr, default=None):
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return getattr(args, attr, None) or yaml_config.get(attr, default)
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return RunnerConfig(build_dir,
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yaml_config['board_dir'],
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output_file('elf'),
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output_file('hex'),
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output_file('bin'),
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config('gdb'),
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config('openocd'),
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config('openocd_search', []))
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def dump_traceback():
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# Save the current exception to a file and return its path.
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fd, name = tempfile.mkstemp(prefix='west-exc-', suffix='.txt')
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close(fd) # traceback has no use for the fd
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with open(name, 'w') as f:
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traceback.print_exc(file=f)
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log.inf("An exception trace has been saved in", name)
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#
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# west {command} --context
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#
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def dump_context(command, args, unknown_args):
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build_dir = get_build_dir(args, die_if_none=False)
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if build_dir is None:
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log.wrn('no --build-dir given or found; output will be limited')
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runners_yaml = None
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else:
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cache = load_cmake_cache(build_dir, args)
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board = cache['CACHED_BOARD']
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yaml_path = runners_yaml_path(build_dir, board)
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runners_yaml = load_runners_yaml(yaml_path)
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# Re-build unless asked not to, to make sure the output is up to date.
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if build_dir and not args.skip_rebuild:
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rebuild(command, build_dir, args)
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if args.runner:
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try:
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cls = get_runner_cls(args.runner)
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except ValueError:
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log.die(f'invalid runner name {args.runner}; choices: ' +
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', '.join(cls.name() for cls in
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ZephyrBinaryRunner.get_runners()))
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else:
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cls = None
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if runners_yaml is None:
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dump_context_no_config(command, cls)
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else:
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log.inf(f'build configuration:', colorize=True)
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log.inf(f'{INDENT}build directory: {build_dir}')
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log.inf(f'{INDENT}board: {board}')
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log.inf(f'{INDENT}runners.yaml: {yaml_path}')
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if cls:
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dump_runner_context(command, cls, runners_yaml)
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else:
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dump_all_runner_context(command, runners_yaml, board, build_dir)
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def dump_context_no_config(command, cls):
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if not cls:
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all_cls = {cls.name(): cls for cls in ZephyrBinaryRunner.get_runners()
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if command.name in cls.capabilities().commands}
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log.inf('all Zephyr runners which support {}:'.format(command.name),
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colorize=True)
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dump_wrapped_lines(', '.join(all_cls.keys()), INDENT)
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log.inf()
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log.inf('Note: use -r RUNNER to limit information to one runner.')
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else:
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# This does the right thing with a None argument.
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dump_runner_context(command, cls, None)
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def dump_runner_context(command, cls, runners_yaml, indent=''):
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dump_runner_caps(cls, indent)
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dump_runner_option_help(cls, indent)
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if runners_yaml is None:
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return
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if cls.name() in runners_yaml['runners']:
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dump_runner_args(cls.name(), runners_yaml, indent)
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else:
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log.wrn(f'support for runner {cls.name()} is not configured '
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f'in this build directory')
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def dump_runner_caps(cls, indent=''):
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# Print RunnerCaps for the given runner class.
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log.inf(f'{indent}{cls.name()} capabilities:', colorize=True)
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log.inf(f'{indent}{INDENT}{cls.capabilities()}')
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def dump_runner_option_help(cls, indent=''):
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# Print help text for class-specific command line options for the
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# given runner class.
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dummy_parser = argparse.ArgumentParser(prog='', add_help=False)
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cls.add_parser(dummy_parser)
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formatter = dummy_parser._get_formatter()
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for group in dummy_parser._action_groups:
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# Break the abstraction to filter out the 'flash', 'debug', etc.
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# TODO: come up with something cleaner (may require changes
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# in the runner core).
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actions = group._group_actions
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if len(actions) == 1 and actions[0].dest == 'command':
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# This is the lone positional argument. Skip it.
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continue
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formatter.start_section('REMOVE ME')
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formatter.add_text(group.description)
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formatter.add_arguments(actions)
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formatter.end_section()
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# Get the runner help, with the "REMOVE ME" string gone
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runner_help = f'\n{indent}'.join(formatter.format_help().splitlines()[1:])
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log.inf(f'{indent}{cls.name()} options:', colorize=True)
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log.inf(indent + runner_help)
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def dump_runner_args(group, runners_yaml, indent=''):
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msg = f'{indent}{group} arguments from runners.yaml:'
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args = runners_yaml['args'][group]
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if args:
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log.inf(msg, colorize=True)
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for arg in args:
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log.inf(f'{indent}{INDENT}{arg}')
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else:
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log.inf(f'{msg} (none)', colorize=True)
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def dump_all_runner_context(command, runners_yaml, board, build_dir):
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all_cls = {cls.name(): cls for cls in ZephyrBinaryRunner.get_runners() if
|
|
command.name in cls.capabilities().commands}
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|
available = runners_yaml['runners']
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|
available_cls = {r: all_cls[r] for r in available if r in all_cls}
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|
default_runner = runners_yaml[command.runner_key]
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|
yaml_path = runners_yaml_path(build_dir, board)
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|
runners_yaml = load_runners_yaml(yaml_path)
|
|
|
|
log.inf(f'zephyr runners which support "west {command.name}":',
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|
colorize=True)
|
|
dump_wrapped_lines(', '.join(all_cls.keys()), INDENT)
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|
log.inf()
|
|
dump_wrapped_lines('Note: not all may work with this board and build '
|
|
'directory. Available runners are listed below.',
|
|
INDENT)
|
|
|
|
log.inf(f'available runners in runners.yaml:',
|
|
colorize=True)
|
|
dump_wrapped_lines(', '.join(available), INDENT)
|
|
log.inf(f'default runner in runners.yaml:', colorize=True)
|
|
log.inf(INDENT + default_runner)
|
|
log.inf('common runner configuration:', colorize=True)
|
|
runner_config = get_runner_config(build_dir, yaml_path, runners_yaml)
|
|
for field, value in zip(runner_config._fields, runner_config):
|
|
log.inf(f'{INDENT}- {field}: {value}')
|
|
log.inf('runner-specific context:', colorize=True)
|
|
for cls in available_cls.values():
|
|
dump_runner_context(command, cls, runners_yaml, INDENT)
|
|
|
|
if len(available) > 1:
|
|
log.inf()
|
|
log.inf('Note: use -r RUNNER to limit information to one runner.')
|
|
|
|
def dump_wrapped_lines(text, indent):
|
|
for line in textwrap.wrap(text, initial_indent=indent,
|
|
subsequent_indent=indent,
|
|
break_on_hyphens=False,
|
|
break_long_words=False):
|
|
log.inf(line)
|