mirror of
https://github.com/kevingruesser/bootstrap-vz.git
synced 2025-08-22 09:50:37 +00:00
f62c8ade99
Up until now I didn't see the point of using spaces for indentation. However, the previous commit (a18bec3) was quite eye opening. Given that python is an indentation aware language, the amount of mistakes that went unnoticed because tabs and spaces were used at the same time (tabs for indentation and spaces for alignment) were unacceptable. E101,W191 have been re-enable in the tox flake8 checker and the documentation has been modified accordingly. The following files have been left as-is: * bootstrapvz/common/assets/extlinux/extlinux.conf * bootstrapvz/common/assets/init.d/expand-root * bootstrapvz/common/assets/init.d/generate-ssh-hostkeys * bootstrapvz/common/assets/init.d/squeeze/generate-ssh-hostkeys * bootstrapvz/plugins/docker_daemon/assets/init.d/docker * bootstrapvz/providers/ec2/assets/bin/growpart * bootstrapvz/providers/ec2/assets/grub.d/40_custom * bootstrapvz/providers/ec2/assets/init.d/ec2-get-credentials * bootstrapvz/providers/ec2/assets/init.d/ec2-run-user-data * docs/_static/taskoverview.coffee * docs/_static/taskoverview.less * tests/unit/subprocess.sh
31 lines
1.2 KiB
Python
31 lines
1.2 KiB
Python
from bootstrapvz.base import Task
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from .. import phases
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from ..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 ..tools import log_check_call
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from subprocess import CalledProcessError
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import re
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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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if re.match('^https?:\/\/', package):
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msg = ('The command `{command}\' is not available, '
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'you can download the software at `{package}\'.'
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.format(command=command, package=package))
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else:
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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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