File: shell_plugin.py

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vmdb2 0.41-1
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# Copyright 2017  Lars Wirzenius
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program.  If not, see <http://www.gnu.org/licenses/>.
#
# =*= License: GPL-3+ =*=


import os

import vmdb


class ShellPlugin(vmdb.Plugin):
    def enable(self):
        self.app.step_runners.add(ShellStepRunner())


class ShellStepRunner(vmdb.StepRunnerInterface):
    def get_key_spec(self):
        return {"shell": str, "root-fs": str}

    def run(self, step, settings, state):
        shell = step["shell"]
        fs_tag = step["root-fs"]

        env = dict(os.environ)
        env["ROOT"] = state.tags.get_builder_mount_point(fs_tag)
        vmdb.runcmd(["sh", "-ec", shell], env=env)