67 lines
2.3 KiB
Python
67 lines
2.3 KiB
Python
# -*- coding: utf-8 -*-
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import os
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import subprocess
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from lxcmgr.paths import LXC_STORAGE_DIR
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from lxcmgr.pkgmgr import PkgMgr
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from . import crypto
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from .packer import Packer
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from .paths import REPO_IMAGES_DIR
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class ImagePacker(Packer):
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def __init__(self, image):
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super().__init__()
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self.image = image
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# Prepare package file names
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self.tar_path = os.path.join(REPO_IMAGES_DIR, '{}.tar'.format(self.image.name))
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self.xz_path = '{}.xz'.format(self.tar_path)
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def pack(self):
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if self.image.force_build:
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self.unregister()
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try:
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os.unlink(self.xz_path)
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except FileNotFoundError:
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pass
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elif os.path.exists(self.xz_path):
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raise PackageExistsError(self.xz_path)
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self.create_archive()
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self.register()
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self.sign_packages()
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def remove(self):
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self.unregister()
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try:
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os.unlink(self.xz_path)
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except FileNotFoundError:
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pass
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def create_archive(self):
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# Create archive
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print('Archiving', self.image.path)
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subprocess.run(['tar', '--xattrs', '-cpf', self.tar_path, self.image.name], cwd=LXC_STORAGE_DIR)
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self.compress_archive()
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def register(self):
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# Register image in global repository metadata file
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print('Registering package {}'.format(self.image.name))
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self.packages['images'][self.image.name] = self.image.conf.copy()
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self.packages['images'][self.image.name]['size'] = self.tar_size
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self.packages['images'][self.image.name]['pkgsize'] = self.xz_size
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self.packages['images'][self.image.name]['sha512'] = crypto.hash_file(self.xz_path)
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self.save_repo_meta()
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# Register the image also to locally installed images for package manager
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pm = PkgMgr()
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pm.register_image(self.image.name, self.packages['images'][self.image.name])
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def unregister(self):
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# Removes package from global repository metadata file
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if self.image.name in self.packages['images']:
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del self.packages['images'][self.image.name]
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self.save_repo_meta()
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# Unregister the image also from locally installed images for package manager
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pm = PkgMgr()
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pm.unregister_image(self.image.name)
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