af4389e606
By storing plugins in a dictionary indexed by plugin name rather than a list, we can simplify plugin lookup and remove the undocumented need for a plugin's run() method to return True when it has matched the given command. The command will be rejected by the argument parser if it does not match one of the plugin names so we do not need to handle failure to lookup the plugin in the dictionary. Signed-off-by: Paul Barker <pbarker@konsulko.com> Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
132 lines
3.9 KiB
Python
132 lines
3.9 KiB
Python
# kas - setup tool for bitbake based projects
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#
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# Copyright (c) Siemens AG, 2017-2018
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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 a kas plugin that opens a shell within the kas
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environment
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"""
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import logging
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import os
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import subprocess
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import sys
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from .libkas import kasplugin
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from .context import create_global_context
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from .config import Config
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from .libcmds import (Macro, Command, SetupDir, SetupEnviron,
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WriteBBConfig, SetupHome, ReposApplyPatches,
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CleanupSSHAgent, SetupSSHAgent,
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Loop, InitSetupRepos, FinishSetupRepos,
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SetupReposStep)
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__license__ = 'MIT'
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__copyright__ = 'Copyright (c) Siemens AG, 2017-2018'
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@kasplugin
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class Shell:
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"""
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Implements a kas plugin that opens a shell within the kas environment.
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"""
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name = 'shell'
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helpmsg = 'Run a shell in the build environment.'
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@classmethod
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def setup_parser(cls, parser):
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"""
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Setup the argument parser for the shell plugin
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"""
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parser.add_argument('-k', '--keep-config-unchanged',
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help='Skip steps that change the configuration',
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action='store_true')
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parser.add_argument('-c', '--command',
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help='Run command',
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default='')
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def run(self, args):
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"""
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Runs this kas plugin
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"""
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ctx = create_global_context(args)
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ctx.config = Config(args.config, None, None)
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macro = Macro()
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# Prepare
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if not args.keep_config_unchanged:
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macro.add(SetupDir())
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if 'SSH_PRIVATE_KEY' in os.environ:
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macro.add(SetupSSHAgent())
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ctx.keep_config = args.keep_config_unchanged
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macro.add(InitSetupRepos())
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repo_loop = Loop('repo_setup_loop')
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repo_loop.add(SetupReposStep())
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macro.add(repo_loop)
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macro.add(FinishSetupRepos())
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macro.add(SetupEnviron())
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macro.add(SetupHome())
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if not args.keep_config_unchanged:
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macro.add(ReposApplyPatches())
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macro.add(WriteBBConfig())
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# Shell
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macro.add(ShellCommand(args.command))
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if 'SSH_PRIVATE_KEY' in os.environ:
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macro.add(CleanupSSHAgent())
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macro.run(ctx, args.skip)
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class ShellCommand(Command):
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"""
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This class implements the command that starts a shell.
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"""
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def __init__(self, cmd):
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super().__init__()
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self.cmd = []
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if cmd:
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self.cmd = cmd
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def __str__(self):
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return 'shell'
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def execute(self, ctx):
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cmd = [ctx.environ.get('SHELL', '/bin/sh')]
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if self.cmd:
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cmd.append('-c')
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cmd.append(self.cmd)
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ret = subprocess.call(cmd, env=ctx.environ, cwd=ctx.build_dir)
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if ret != 0:
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logging.error('Shell returned non-zero exit status %d', ret)
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sys.exit(ret)
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