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25 lines
800 B
Python
25 lines
800 B
Python
from base import Task
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from common import phases
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from common.exceptions import TaskError
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class CheckExternalCommands(Task):
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description = 'Checking availability of external commands'
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phase = phases.preparation
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@classmethod
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def run(cls, info):
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from common.tools import log_check_call
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from subprocess import CalledProcessError
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missing_packages = []
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for command, package in info.host_dependencies.items():
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try:
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log_check_call(['type ' + command], shell=True)
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except CalledProcessError:
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msg = ('The command `{command}\' is not available, '
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'it is located in the package `{package}\'.'
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.format(command=command, package=package))
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missing_packages.append(msg)
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if len(missing_packages) > 0:
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msg = '\n'.join(missing_packages)
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raise TaskError(msg)
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