Spotter-VM/build/usr/lib/python3.6/lxcbuild/apppacker.py

62 lines
2.3 KiB
Python

# -*- coding: utf-8 -*-
import os
import subprocess
from . import crypto
from .imagebuilder import ImageNotFoundError
from .packer import Packer
from .paths import REPO_APPS_DIR
class AppPacker(Packer):
def __init__(self, app):
super().__init__()
self.app = app
# Prepare package file names
self.tar_path = os.path.join(REPO_APPS_DIR, '{}.tar'.format(self.app.name))
self.xz_path = '{}.xz'.format(self.tar_path)
def pack(self):
# Check if all images used by containers exist
for container in self.app.conf['containers']:
image = self.app.conf['containers'][container]['image']
if image not in self.packages['images']:
raise ImageNotFoundError(image)
try:
os.unlink(self.xz_path)
except FileNotFoundError:
pass
self.create_archive()
self.register()
self.sign_packages()
def remove(self):
self.unregister()
try:
os.unlink(self.xz_path)
except FileNotFoundError:
pass
def create_archive(self):
# Create archive with application setup scripts
print('Archiving setup scripts for', self.app.name)
scripts = ('install', 'install.sh', 'upgrade', 'upgrade.sh', 'uninstall', 'uninstall.sh')
scripts = [s for s in scripts if os.path.exists(os.path.join(self.app.build_dir, s))]
subprocess.run(['tar', '--xattrs', '-cpf', self.tar_path, '--transform', 's,^,{}/,'.format(self.app.name)] + scripts, cwd=self.app.build_dir)
self.compress_archive()
def register(self):
# Register package in global repository metadata file
print('Registering application package', self.app.name)
self.packages['apps'][self.app.name] = self.app.conf.copy()
self.packages['apps'][self.app.name]['size'] = self.tar_size
self.packages['apps'][self.app.name]['pkgsize'] = self.xz_size
self.packages['apps'][self.app.name]['sha512'] = crypto.hash_file(self.xz_path)
self.save_repo_meta()
def unregister(self):
# Removes package from global repository metadata file
if self.app.name in self.packages['apps']:
del self.packages['apps'][self.app.name]
self.save_repo_meta()