17691d2756
The current implementation did some more hackish solution to work around some of kas infrastructure, without changing to much. This patch cleans this up and therefor remove the more obsure part of the include mechansim. Signed-off-by: Claudius Heine <ch@denx.de>
349 lines
10 KiB
Python
349 lines
10 KiB
Python
# kas - setup tool for bitbake based projects
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#
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# Copyright (c) Siemens AG, 2017
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#
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# Permission is hereby granted, free of charge, to any person obtaining a copy
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# of this software and associated documentation files (the "Software"), to deal
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# in the Software without restriction, including without limitation the rights
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# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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# copies of the Software, and to permit persons to whom the Software is
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# furnished to do so, subject to the following conditions:
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#
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# The above copyright notice and this permission notice shall be
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# included in all copies or substantial portions of the Software.
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#
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# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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# SOFTWARE.
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"""
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This module contains the core implementation of kas.
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"""
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import re
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import os
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import sys
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import logging
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import tempfile
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import asyncio
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from subprocess import Popen, PIPE
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__license__ = 'MIT'
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__copyright__ = 'Copyright (c) Siemens AG, 2017'
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class LogOutput:
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"""
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Handles the log output of executed applications
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"""
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def __init__(self, live):
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self.live = live
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self.stdout = []
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self.stderr = []
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def log_stdout(self, line):
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"""
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This method is called when a line over stdout is received.
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"""
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if self.live:
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logging.info(line.strip())
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self.stdout.append(line)
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def log_stderr(self, line):
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"""
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This method is called when a line over stderr is received.
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"""
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if self.live:
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logging.error(line.strip())
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self.stderr.append(line)
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@asyncio.coroutine
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def _read_stream(stream, callback):
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"""
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This asynchronious method reads from the output stream of the
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application and transfers each line to the callback function.
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"""
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while True:
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line = yield from stream.readline()
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try:
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line = line.decode('utf-8')
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except UnicodeDecodeError as err:
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logging.warning('Could not decode line from stream, ignore it: %s',
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err)
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if line:
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callback(line)
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else:
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break
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@asyncio.coroutine
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def _stream_subprocess(cmd, cwd, env, shell, stdout_cb, stderr_cb):
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"""
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This function starts the subprocess, sets up the output stream
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handlers and waits until the process has existed
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"""
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# pylint: disable=too-many-arguments
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if shell:
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process = yield from asyncio.create_subprocess_shell(
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cmd,
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env=env,
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cwd=cwd,
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universal_newlines=True,
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stdout=asyncio.subprocess.PIPE,
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stderr=asyncio.subprocess.PIPE)
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else:
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process = yield from asyncio.create_subprocess_exec(
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*cmd,
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cwd=cwd,
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env=env,
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stdout=asyncio.subprocess.PIPE,
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stderr=asyncio.subprocess.PIPE)
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yield from asyncio.wait([
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_read_stream(process.stdout, stdout_cb),
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_read_stream(process.stderr, stderr_cb)
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])
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ret = yield from process.wait()
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return ret
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def run_cmd(cmd, cwd, env=None, fail=True, shell=False, liveupdate=True):
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"""
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Starts a command.
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"""
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# pylint: disable=too-many-arguments
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env = env or {}
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retc = 0
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cmdstr = cmd
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if not shell:
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cmdstr = ' '.join(cmd)
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logging.info('%s$ %s', cwd, cmdstr)
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logo = LogOutput(liveupdate)
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if asyncio.get_event_loop().is_closed():
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loop = asyncio.new_event_loop()
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asyncio.set_event_loop(loop)
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else:
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loop = asyncio.get_event_loop()
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retc = loop.run_until_complete(
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_stream_subprocess(cmd, cwd, env, shell,
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logo.log_stdout, logo.log_stderr))
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loop.close()
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if retc and fail:
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msg = 'Command "{cwd}$ {cmd}" failed\n'.format(cwd=cwd, cmd=cmdstr)
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for line in logo.stderr:
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msg += line
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logging.error(msg)
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sys.exit(retc)
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return (retc, ''.join(logo.stdout))
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def find_program(paths, name):
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"""
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Find a file within the paths array and returns its path.
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"""
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for path in paths.split(os.pathsep):
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prg = os.path.join(path, name)
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if os.path.isfile(prg):
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return prg
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return None
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def repo_fetch(config, repo):
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"""
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Fetches the repository to the kas_work_dir.
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"""
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if repo.git_operation_disabled:
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return
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if not os.path.exists(repo.path):
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os.makedirs(os.path.dirname(repo.path), exist_ok=True)
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gitsrcdir = os.path.join(config.get_repo_ref_dir() or '',
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repo.qualified_name)
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logging.debug('Looking for repo ref dir in %s', gitsrcdir)
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if config.get_repo_ref_dir() and os.path.exists(gitsrcdir):
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run_cmd(['/usr/bin/git',
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'clone',
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'--reference', gitsrcdir,
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repo.url, repo.path],
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env=config.environ,
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cwd=config.kas_work_dir)
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else:
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run_cmd(['/usr/bin/git', 'clone', '-q', repo.url,
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repo.path],
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env=config.environ,
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cwd=config.kas_work_dir)
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return
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# Does refspec in the current repository?
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(retc, output) = run_cmd(['/usr/bin/git', 'cat-file',
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'-t', repo.refspec], env=config.environ,
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cwd=repo.path, fail=False)
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if retc == 0:
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return
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# No it is missing, try to fetch
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(retc, output) = run_cmd(['/usr/bin/git', 'fetch', '--all'],
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env=config.environ,
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cwd=repo.path, fail=False)
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if retc:
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logging.warning('Could not update repository %s: %s',
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repo.name, output)
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def repo_checkout(config, repo):
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"""
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Checks out the correct revision of the repo.
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"""
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if repo.git_operation_disabled:
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return
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# Check if repos is dirty
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(_, output) = run_cmd(['/usr/bin/git', 'diff', '--shortstat'],
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env=config.environ, cwd=repo.path,
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fail=False)
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if len(output):
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logging.warning('Repo %s is dirty. no checkout', repo.name)
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return
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# Check if current HEAD is what in the config file is defined.
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(_, output) = run_cmd(['/usr/bin/git', 'rev-parse',
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'--verify', 'HEAD'],
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env=config.environ, cwd=repo.path)
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if output.strip() == repo.refspec:
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logging.info('Repo %s has already checkout out correct '
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'refspec. nothing to do', repo.name)
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return
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run_cmd(['/usr/bin/git', 'checkout', '-q',
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'{refspec}'.format(refspec=repo.refspec)],
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cwd=repo.path)
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def get_build_environ(config, build_dir):
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"""
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Create the build environment variables.
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"""
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# pylint: disable=too-many-locals
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# nasty side effect function: running oe/isar-init-build-env also
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# creates the conf directory
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permutations = \
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[(repo, script) for repo in config.get_repos()
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for script in ['oe-init-build-env', 'isar-init-build-env']]
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for (repo, script) in permutations:
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if os.path.exists(repo.path + '/' + script):
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init_path = repo.path
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init_script = script
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break
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else:
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logging.error('Did not find any init-build-env script')
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sys.exit(1)
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get_bb_env_file = tempfile.mktemp()
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with open(get_bb_env_file, 'w') as fds:
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script = """#!/bin/bash
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source %s $1 > /dev/null 2>&1
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env
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""" % init_script
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fds.write(script)
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os.chmod(get_bb_env_file, 0o775)
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env = {}
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env['PATH'] = '/bin:/usr/bin'
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(_, output) = run_cmd([get_bb_env_file, build_dir],
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cwd=init_path, env=env, liveupdate=False)
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os.remove(get_bb_env_file)
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env = {}
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for line in output.splitlines():
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try:
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(key, val) = line.split('=', 1)
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env[key] = val
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except ValueError:
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pass
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env_vars = ['SSTATE_DIR', 'DL_DIR', 'TMPDIR']
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if 'BB_ENV_EXTRAWHITE' in env:
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extra_white = env['BB_ENV_EXTRAWHITE'] + ' '.join(env_vars)
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env.update({'BB_ENV_EXTRAWHITE': extra_white})
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env_vars.extend(['SSH_AGENT_PID', 'SSH_AUTH_SOCK',
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'SHELL', 'TERM'])
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for env_var in env_vars:
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if env_var in os.environ:
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env[env_var] = os.environ[env_var]
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return env
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def ssh_add_key(env, key):
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"""
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Add ssh key to the ssh-agent
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"""
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process = Popen(['/usr/bin/ssh-add', '-'], stdin=PIPE, stdout=None,
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stderr=PIPE, env=env)
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(_, error) = process.communicate(input=str.encode(key))
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if process.returncode and error:
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logging.error('failed to add ssh key: %s', error)
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def ssh_cleanup_agent(config):
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"""
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Removes the identities and stop the ssh-agent instance
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"""
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# remove the identities
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process = Popen(['/usr/bin/ssh-add', '-D'], env=config.environ)
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process.wait()
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if process.returncode != 0:
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logging.error('failed to delete SSH identities')
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# stop the ssh-agent
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process = Popen(['/usr/bin/ssh-agent', '-k'], env=config.environ)
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process.wait()
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if process.returncode != 0:
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logging.error('failed to stop SSH agent')
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def ssh_setup_agent(config, envkeys=None):
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"""
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Starts the ssh-agent
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"""
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envkeys = envkeys or ['SSH_PRIVATE_KEY']
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output = os.popen('/usr/bin/ssh-agent -s').readlines()
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for line in output:
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matches = re.search(r"(\S+)\=(\S+)\;", line)
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if matches:
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config.environ[matches.group(1)] = matches.group(2)
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for envkey in envkeys:
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key = os.environ.get(envkey)
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if key:
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ssh_add_key(config.environ, key)
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else:
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logging.warning('%s is missing', envkey)
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def ssh_no_host_key_check(_):
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"""
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Disables ssh host key check
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"""
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home = os.path.expanduser('~')
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if not os.path.exists(home + '/.ssh'):
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os.mkdir(home + '/.ssh')
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with open(home + '/.ssh/config', 'w') as fds:
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fds.write('Host *\n\tStrictHostKeyChecking no\n\n')
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