bootstrap-vz/bootstrapvz/plugins/minimize_size/tasks/mounts.py
Anders Ingemann f62c8ade99 Convert indentation from tabs to spaces (4)
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
2016-06-04 11:38:16 +02:00

43 lines
1.5 KiB
Python

from bootstrapvz.base import Task
from bootstrapvz.common import phases
from bootstrapvz.common.tasks import apt
from bootstrapvz.common.tasks import bootstrap
import os
folders = ['tmp', 'var/lib/apt/lists']
class AddFolderMounts(Task):
description = 'Mounting folders for writing temporary and cache data'
phase = phases.os_installation
predecessors = [bootstrap.Bootstrap]
@classmethod
def run(cls, info):
info._minimize_size['foldermounts'] = os.path.join(info.workspace, 'minimize_size')
os.mkdir(info._minimize_size['foldermounts'])
for folder in folders:
temp_path = os.path.join(info._minimize_size['foldermounts'], folder.replace('/', '_'))
os.mkdir(temp_path)
full_path = os.path.join(info.root, folder)
info.volume.partition_map.root.add_mount(temp_path, full_path, ['--bind'])
class RemoveFolderMounts(Task):
description = 'Removing folder mounts for temporary and cache data'
phase = phases.system_cleaning
successors = [apt.AptClean]
@classmethod
def run(cls, info):
import shutil
for folder in folders:
temp_path = os.path.join(info._minimize_size['foldermounts'], folder.replace('/', '_'))
full_path = os.path.join(info.root, folder)
info.volume.partition_map.root.remove_mount(full_path)
shutil.rmtree(temp_path)
os.rmdir(info._minimize_size['foldermounts'])
del info._minimize_size['foldermounts']