mirror of
https://github.com/AsahiLinux/u-boot
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d98006997c
Convert this file to snake case and update all files which use it. Signed-off-by: Simon Glass <sjg@chromium.org>
466 lines
15 KiB
Python
466 lines
15 KiB
Python
# SPDX-License-Identifier: GPL-2.0+
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# Copyright 2022 Google LLC
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#
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"""Base class for all bintools
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This defines the common functionality for all bintools, including running
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the tool, checking its version and fetching it if needed.
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"""
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import collections
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import glob
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import importlib
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import multiprocessing
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import os
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import shutil
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import tempfile
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import urllib.error
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from patman import command
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from patman import terminal
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from patman import tools
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from patman import tout
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BINMAN_DIR = os.path.dirname(os.path.realpath(__file__))
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# Format string for listing bintools, see also the header in list_all()
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FORMAT = '%-16.16s %-12.12s %-26.26s %s'
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# List of known modules, to avoid importing the module multiple times
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modules = {}
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# Possible ways of fetching a tool (FETCH_COUNT is number of ways)
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FETCH_ANY, FETCH_BIN, FETCH_BUILD, FETCH_COUNT = range(4)
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FETCH_NAMES = {
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FETCH_ANY: 'any method',
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FETCH_BIN: 'binary download',
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FETCH_BUILD: 'build from source'
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}
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# Status of tool fetching
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FETCHED, FAIL, PRESENT, STATUS_COUNT = range(4)
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DOWNLOAD_DESTDIR = os.path.join(os.getenv('HOME'), 'bin')
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class Bintool:
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"""Tool which operates on binaries to help produce entry contents
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This is the base class for all bintools
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"""
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# List of bintools to regard as missing
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missing_list = []
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def __init__(self, name, desc):
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self.name = name
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self.desc = desc
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@staticmethod
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def find_bintool_class(btype):
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"""Look up the bintool class for bintool
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Args:
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byte: Bintool to use, e.g. 'mkimage'
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Returns:
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The bintool class object if found, else a tuple:
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module name that could not be found
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exception received
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"""
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# Convert something like 'u-boot' to 'u_boot' since we are only
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# interested in the type.
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module_name = btype.replace('-', '_')
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module = modules.get(module_name)
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# Import the module if we have not already done so
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if not module:
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try:
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module = importlib.import_module('binman.btool.' + module_name)
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except ImportError as exc:
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return module_name, exc
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modules[module_name] = module
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# Look up the expected class name
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return getattr(module, 'Bintool%s' % module_name)
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@staticmethod
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def create(name):
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"""Create a new bintool object
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Args:
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name (str): Bintool to create, e.g. 'mkimage'
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Returns:
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A new object of the correct type (a subclass of Binutil)
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"""
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cls = Bintool.find_bintool_class(name)
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if isinstance(cls, tuple):
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raise ValueError("Cannot import bintool module '%s': %s" % cls)
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# Call its constructor to get the object we want.
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obj = cls(name)
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return obj
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def show(self):
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"""Show a line of information about a bintool"""
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if self.is_present():
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version = self.version()
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else:
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version = '-'
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print(FORMAT % (self.name, version, self.desc,
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self.get_path() or '(not found)'))
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@classmethod
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def set_missing_list(cls, missing_list):
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cls.missing_list = missing_list or []
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@staticmethod
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def get_tool_list(include_testing=False):
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"""Get a list of the known tools
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Returns:
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list of str: names of all tools known to binman
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"""
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files = glob.glob(os.path.join(BINMAN_DIR, 'btool/*'))
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names = [os.path.splitext(os.path.basename(fname))[0]
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for fname in files]
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names = [name for name in names if name[0] != '_']
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if include_testing:
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names.append('_testing')
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return sorted(names)
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@staticmethod
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def list_all():
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"""List all the bintools known to binman"""
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names = Bintool.get_tool_list()
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print(FORMAT % ('Name', 'Version', 'Description', 'Path'))
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print(FORMAT % ('-' * 15,'-' * 11, '-' * 25, '-' * 30))
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for name in names:
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btool = Bintool.create(name)
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btool.show()
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def is_present(self):
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"""Check if a bintool is available on the system
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Returns:
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bool: True if available, False if not
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"""
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if self.name in self.missing_list:
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return False
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return bool(self.get_path())
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def get_path(self):
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"""Get the path of a bintool
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Returns:
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str: Path to the tool, if available, else None
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"""
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return tools.tool_find(self.name)
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def fetch_tool(self, method, col, skip_present):
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"""Fetch a single tool
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Args:
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method (FETCH_...): Method to use
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col (terminal.Color): Color terminal object
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skip_present (boo;): Skip fetching if it is already present
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Returns:
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int: Result of fetch either FETCHED, FAIL, PRESENT
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"""
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def try_fetch(meth):
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res = None
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try:
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res = self.fetch(meth)
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except urllib.error.URLError as uerr:
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message = uerr.reason
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print(col.Color(col.RED, f'- {message}'))
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except ValueError as exc:
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print(f'Exception: {exc}')
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return res
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if skip_present and self.is_present():
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return PRESENT
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print(col.Color(col.YELLOW, 'Fetch: %s' % self.name))
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if method == FETCH_ANY:
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for try_method in range(1, FETCH_COUNT):
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print(f'- trying method: {FETCH_NAMES[try_method]}')
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result = try_fetch(try_method)
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if result:
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break
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else:
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result = try_fetch(method)
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if not result:
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return FAIL
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if result is not True:
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fname, tmpdir = result
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dest = os.path.join(DOWNLOAD_DESTDIR, self.name)
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print(f"- writing to '{dest}'")
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shutil.move(fname, dest)
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if tmpdir:
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shutil.rmtree(tmpdir)
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return FETCHED
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@staticmethod
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def fetch_tools(method, names_to_fetch):
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"""Fetch bintools from a suitable place
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This fetches or builds the requested bintools so that they can be used
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by binman
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Args:
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names_to_fetch (list of str): names of bintools to fetch
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Returns:
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True on success, False on failure
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"""
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def show_status(color, prompt, names):
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print(col.Color(
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color, f'{prompt}:%s{len(names):2}: %s' %
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(' ' * (16 - len(prompt)), ' '.join(names))))
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col = terminal.Color()
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skip_present = False
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name_list = names_to_fetch
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if len(names_to_fetch) == 1 and names_to_fetch[0] in ['all', 'missing']:
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name_list = Bintool.get_tool_list()
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if names_to_fetch[0] == 'missing':
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skip_present = True
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print(col.Color(col.YELLOW,
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'Fetching tools: %s' % ' '.join(name_list)))
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status = collections.defaultdict(list)
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for name in name_list:
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btool = Bintool.create(name)
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result = btool.fetch_tool(method, col, skip_present)
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status[result].append(name)
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if result == FAIL:
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if method == FETCH_ANY:
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print('- failed to fetch with all methods')
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else:
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print(f"- method '{FETCH_NAMES[method]}' is not supported")
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if len(name_list) > 1:
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if skip_present:
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show_status(col.GREEN, 'Already present', status[PRESENT])
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show_status(col.GREEN, 'Tools fetched', status[FETCHED])
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if status[FAIL]:
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show_status(col.RED, 'Failures', status[FAIL])
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return not status[FAIL]
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def run_cmd_result(self, *args, binary=False, raise_on_error=True):
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"""Run the bintool using command-line arguments
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Args:
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args (list of str): Arguments to provide, in addition to the bintool
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name
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binary (bool): True to return output as bytes instead of str
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raise_on_error (bool): True to raise a ValueError exception if the
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tool returns a non-zero return code
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Returns:
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CommandResult: Resulting output from the bintool, or None if the
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tool is not present
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"""
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if self.name in self.missing_list:
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return None
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name = os.path.expanduser(self.name) # Expand paths containing ~
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all_args = (name,) + args
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env = tools.get_env_with_path()
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tout.Detail(f"bintool: {' '.join(all_args)}")
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result = command.run_pipe(
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[all_args], capture=True, capture_stderr=True, env=env,
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raise_on_error=False, binary=binary)
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if result.return_code:
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# Return None if the tool was not found. In this case there is no
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# output from the tool and it does not appear on the path. We still
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# try to run it (as above) since RunPipe() allows faking the tool's
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# output
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if not any([result.stdout, result.stderr, tools.tool_find(name)]):
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tout.Info(f"bintool '{name}' not found")
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return None
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if raise_on_error:
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tout.Info(f"bintool '{name}' failed")
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raise ValueError("Error %d running '%s': %s" %
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(result.return_code, ' '.join(all_args),
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result.stderr or result.stdout))
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if result.stdout:
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tout.Debug(result.stdout)
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if result.stderr:
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tout.Debug(result.stderr)
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return result
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def run_cmd(self, *args, binary=False):
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"""Run the bintool using command-line arguments
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Args:
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args (list of str): Arguments to provide, in addition to the bintool
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name
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binary (bool): True to return output as bytes instead of str
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Returns:
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str or bytes: Resulting stdout from the bintool
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"""
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result = self.run_cmd_result(*args, binary=binary)
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if result:
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return result.stdout
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@classmethod
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def build_from_git(cls, git_repo, make_target, bintool_path):
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"""Build a bintool from a git repo
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This clones the repo in a temporary directory, builds it with 'make',
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then returns the filename of the resulting executable bintool
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Args:
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git_repo (str): URL of git repo
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make_target (str): Target to pass to 'make' to build the tool
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bintool_path (str): Relative path of the tool in the repo, after
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build is complete
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Returns:
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tuple:
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str: Filename of fetched file to copy to a suitable directory
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str: Name of temp directory to remove, or None
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or None on error
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"""
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tmpdir = tempfile.mkdtemp(prefix='binmanf.')
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print(f"- clone git repo '{git_repo}' to '{tmpdir}'")
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tools.run('git', 'clone', '--depth', '1', git_repo, tmpdir)
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print(f"- build target '{make_target}'")
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tools.run('make', '-C', tmpdir, '-j', f'{multiprocessing.cpu_count()}',
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make_target)
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fname = os.path.join(tmpdir, bintool_path)
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if not os.path.exists(fname):
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print(f"- File '{fname}' was not produced")
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return None
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return fname, tmpdir
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@classmethod
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def fetch_from_url(cls, url):
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"""Fetch a bintool from a URL
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Args:
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url (str): URL to fetch from
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Returns:
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tuple:
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str: Filename of fetched file to copy to a suitable directory
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str: Name of temp directory to remove, or None
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"""
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fname, tmpdir = tools.download(url)
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tools.run('chmod', 'a+x', fname)
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return fname, tmpdir
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@classmethod
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def fetch_from_drive(cls, drive_id):
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"""Fetch a bintool from Google drive
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Args:
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drive_id (str): ID of file to fetch. For a URL of the form
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'https://drive.google.com/file/d/xxx/view?usp=sharing' the value
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passed here should be 'xxx'
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Returns:
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tuple:
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str: Filename of fetched file to copy to a suitable directory
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str: Name of temp directory to remove, or None
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"""
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url = f'https://drive.google.com/uc?export=download&id={drive_id}'
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return cls.fetch_from_url(url)
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@classmethod
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def apt_install(cls, package):
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"""Install a bintool using the 'aot' tool
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This requires use of servo so may request a password
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Args:
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package (str): Name of package to install
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Returns:
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True, assuming it completes without error
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"""
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args = ['sudo', 'apt', 'install', '-y', package]
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print('- %s' % ' '.join(args))
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tools.run(*args)
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return True
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@staticmethod
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def WriteDocs(modules, test_missing=None):
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"""Write out documentation about the various bintools to stdout
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Args:
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modules: List of modules to include
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test_missing: Used for testing. This is a module to report
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as missing
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"""
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print('''.. SPDX-License-Identifier: GPL-2.0+
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Binman bintool Documentation
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============================
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This file describes the bintools (binary tools) supported by binman. Bintools
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are binman's name for external executables that it runs to generate or process
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binaries. It is fairly easy to create new bintools. Just add a new file to the
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'btool' directory. You can use existing bintools as examples.
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''')
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modules = sorted(modules)
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missing = []
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for name in modules:
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module = Bintool.find_bintool_class(name)
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docs = getattr(module, '__doc__')
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if test_missing == name:
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docs = None
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if docs:
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lines = docs.splitlines()
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first_line = lines[0]
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rest = [line[4:] for line in lines[1:]]
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hdr = 'Bintool: %s: %s' % (name, first_line)
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print(hdr)
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print('-' * len(hdr))
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print('\n'.join(rest))
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print()
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print()
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else:
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missing.append(name)
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if missing:
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raise ValueError('Documentation is missing for modules: %s' %
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', '.join(missing))
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# pylint: disable=W0613
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def fetch(self, method):
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"""Fetch handler for a bintool
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This should be implemented by the base class
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Args:
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method (FETCH_...): Method to use
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Returns:
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tuple:
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str: Filename of fetched file to copy to a suitable directory
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str: Name of temp directory to remove, or None
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or True if the file was fetched and already installed
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or None if no fetch() implementation is available
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Raises:
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Valuerror: Fetching could not be completed
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"""
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print(f"No method to fetch bintool '{self.name}'")
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return False
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# pylint: disable=R0201
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def version(self):
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"""Version handler for a bintool
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This should be implemented by the base class
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Returns:
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str: Version string for this bintool
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"""
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return 'unknown'
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