359 lines
11 KiB
Python
Executable File
359 lines
11 KiB
Python
Executable File
#!/usr/bin/python3
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from typing import Dict, List, Optional
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import argparse
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import contextlib
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import datetime
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import glob
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import logging
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import os
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import re
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import shutil
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import subprocess
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import sys
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import yaml
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PROG = 'cloud-build'
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class CB:
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"""class for building cloud images"""
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def __init__(self, config: str, system_datadir: str) -> None:
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self.parse_config(config)
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data_dir = (os.getenv('XDG_DATA_HOME',
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os.path.expanduser('~/.local/share'))
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+ f'/{PROG}/')
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self.images_dir = data_dir + 'images/'
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self.work_dir = data_dir + 'work/'
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self.out_dir = data_dir + 'out/'
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self.scripts_dir = data_dir + 'scripts/'
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self.system_datadir = system_datadir
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self.date = datetime.date.today().strftime('%Y%m%d')
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self.ensure_dirs()
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logging.basicConfig(
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filename=f'{data_dir}{PROG}.log',
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format='%(levelname)s:%(asctime)s - %(message)s',
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)
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self.log = logging.getLogger(PROG)
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self.log.setLevel(self.log_level)
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self.info(f'Start {PROG}')
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@contextlib.contextmanager
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def pushd(self, new_dir):
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previous_dir = os.getcwd()
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self.debug(f'Pushd to {new_dir}')
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os.chdir(new_dir)
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yield
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self.debug(f'Popd from {new_dir}')
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os.chdir(previous_dir)
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def parse_config(self, config: str) -> None:
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with open(config) as f:
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cfg = yaml.safe_load(f)
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self.mkimage_profiles_git = os.path.expanduser(
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cfg.get('mkimage_profiles_git')
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)
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self.log_level = getattr(logging, cfg.get('log_level', 'INFO').upper())
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try:
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self._remote = os.path.expanduser(cfg['remote'])
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self.key = cfg['key']
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self._images = cfg['images']
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self._branches = cfg['branches']
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except KeyError as e:
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msg = f'Required parameter {e} does not set in config'
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print(msg, file=sys.stderr)
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raise Exception(msg)
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def info(self, msg: str) -> None:
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self.log.info(msg)
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def debug(self, msg: str) -> None:
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self.log.debug(msg)
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def error(self, msg: str) -> None:
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self.log.error(msg)
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raise Exception(msg)
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def remote(self, branch: str) -> str:
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return self._remote.format(branch=branch)
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def run_script(self, name: str, args: Optional[List[str]] = None) -> None:
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path = self.scripts_dir + name
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if not os.path.exists(path):
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system_path = f'{self.system_datadir}scripts/{name}'
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if os.path.exists(system_path):
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shutil.copyfile(system_path, path)
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else:
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msg = f'Required script `{name}` does not exist'
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self.error(msg)
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if not os.access(path, os.X_OK):
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st = os.stat(path)
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os.chmod(path, st.st_mode | 0o111)
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if args is None:
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args = [path]
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else:
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args = [path] + args
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self.call(args)
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def call(
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self,
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cmd: List[str],
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*,
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stdout_to_file: str = '',
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fail_on_error: bool = True,
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) -> None:
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def maybe_fail(string: str, rc: int) -> None:
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if fail_on_error:
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if rc != 0:
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msg = 'Command `{}` failed with {} return code'.format(
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string,
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rc,
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)
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self.error(msg)
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# just_print = True
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just_print = False
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string = ' '.join(cmd)
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self.debug(f'Call `{string}`')
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if just_print:
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print(string)
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else:
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if stdout_to_file:
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p = subprocess.Popen(cmd, stdout=subprocess.PIPE)
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rc = p.wait()
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maybe_fail(string, rc)
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with open(stdout_to_file, 'w') as f:
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f.write(p.stdout.read().decode())
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else:
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rc = subprocess.call(cmd)
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maybe_fail(string, rc)
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def ensure_dirs(self) -> None:
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for attr in dir(self):
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if attr.endswith('_dir'):
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value = getattr(self, attr)
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if isinstance(value, str):
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os.makedirs(value, exist_ok=True)
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for branch in self.branches:
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os.makedirs(self.images_dir + branch, exist_ok=True)
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def escape_branch(self, branch: str) -> str:
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return re.sub(r'\.', '_', branch)
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def ensure_mkimage_profiles(self, update: bool = False) -> None:
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"""Checks that mkimage-profiles exists or clones it"""
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url = self.mkimage_profiles_git
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if url is None:
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url = (
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'git://'
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+ 'git.altlinux.org/'
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+ 'people/mike/packages/mkimage-profiles.git'
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)
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os.chdir(self.work_dir)
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if os.path.isdir('mkimage-profiles'):
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if update:
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with self.pushd('mkimage-profiles'):
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self.info('Updating mkimage-profiles')
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self.call(['git', 'pull'], fail_on_error=False)
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else:
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self.info('Downloading mkimage-profiles')
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self.call(['git', 'clone', url, 'mkimage-profiles'])
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# create file with proper brandings
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with self.pushd('mkimage-profiles'):
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branch_requires = {
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'Sisyphus': [],
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'p8': ['mixin/p8'],
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} # type: Dict[str, List[str]]
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with open(f'conf.d/{PROG}.mk', 'w') as f:
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for image in self.images:
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target = self.target_by_image(image)
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for branch in self.branches:
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ebranch = self.escape_branch(branch)
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requires = ' '.join([target] + branch_requires[branch])
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s = f'{target}_{ebranch}: {requires}; @:'
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print(s, file=f)
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apt_dir = self.work_dir + 'apt'
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if not os.path.isdir(apt_dir):
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self.run_script('gen-apt-files.sh', [apt_dir])
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@property
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def branches(self) -> List[str]:
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return list(self._branches.keys())
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def arches_by_branch(self, branch: str) -> List[str]:
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return self._branches[branch]
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@property
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def images(self) -> List[str]:
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return list(self._images.keys())
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def kinds_by_image(self, image: str) -> List[str]:
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return self._images[image]['kind']
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def target_by_image(self, image: str) -> str:
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return self._images[image]['target']
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def skip_arch(self, image: str, arch: str) -> bool:
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return arch in self._images[image].get('skip_arches', [])
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def build_tarball(
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self,
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target: str,
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branch: str,
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arch: str,
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kind: str
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) -> str:
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self.ensure_mkimage_profiles()
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target = f'{target}_{self.escape_branch(branch)}'
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image = re.sub(r'.*/', '', target)
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full_target = f'{target}.{kind}'
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tarball = f'{self.out_dir}{image}-{self.date}-{arch}.{kind}'
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apt_dir = self.work_dir + 'apt'
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with self.pushd(self.work_dir + 'mkimage-profiles'):
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if os.path.exists(tarball):
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self.info(f'Skip building of {full_target} {arch}')
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else:
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cmd = [
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'make',
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f'APTCONF={apt_dir}/apt.conf.{branch}.{arch}',
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f'ARCH={arch}',
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f'IMAGE_OUTDIR={self.out_dir.rstrip("/")}',
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full_target,
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]
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self.info(f'Begin building of {full_target} {arch}')
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self.call(cmd)
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if os.path.exists(tarball):
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self.info(f'End building of {full_target} {arch}')
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else:
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self.error(f'Fail building of {full_target} {arch}')
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return tarball
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def image_path(self, image: str, branch: str, arch: str, kind: str) -> str:
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path = '{}{}/alt-{}-{}-{}.{}'.format(
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self.images_dir,
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branch,
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branch.lower(),
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image,
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arch,
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kind,
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)
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return path
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def copy_image(self, src: str, dst: str) -> None:
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os.link(src, dst)
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def clear_imager_dir(self):
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for branch in self.branches:
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directory = f'{self.images_dir}{branch}'
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for path in os.listdir(directory):
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os.unlink(f'{directory}/{path}')
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def create_images(self) -> None:
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self.clear_imager_dir()
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for branch in self.branches:
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images_in_branch = []
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for image in self.images:
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target = self.target_by_image(image)
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for arch in self.arches_by_branch(branch):
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if self.skip_arch(image, arch):
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continue
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for kind in self.kinds_by_image(image):
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tarball = self.build_tarball(
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target, branch, arch, kind,
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)
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image_path = self.image_path(image, branch, arch, kind)
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self.copy_image(tarball, image_path)
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images_in_branch.append(image_path)
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self.checksum_sign(images_in_branch)
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def checksum_sign(self, images):
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if len(images) == 0:
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self.error('Empty list of images to checksum_sign')
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sum_file = 'SHA256SUM'
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with self.pushd(os.path.dirname(images[0])):
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files = [os.path.basename(x) for x in images]
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string = ','.join(files)
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cmd = ['sha256sum'] + files
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self.info(f'Calculate checksum of {string}')
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self.call(cmd, stdout_to_file=sum_file)
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self.info(f'Sign checksum of {string}')
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self.call(['gpg2', '--yes', '-basu', self.key, sum_file])
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def kick(self):
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remote = self._remote
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colon = remote.find(':')
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if colon != -1:
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host = remote[:colon]
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self.call(['ssh', host, 'kick'])
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def sync(self) -> None:
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self.create_images()
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for branch in self.branches:
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remote = self.remote(branch)
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files = glob.glob(f'{self.images_dir}{branch}/*')
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cmd = ['rsync', '-v'] + files + [remote]
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self.call(cmd)
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self.kick()
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def get_data_dir() -> str:
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data_dir = (os.getenv('XDG_DATA_HOME',
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os.path.expanduser('~/.local/share'))
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+ f'/{PROG}/')
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return data_dir
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def parse_args():
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parser = argparse.ArgumentParser(
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formatter_class=argparse.ArgumentDefaultsHelpFormatter,
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)
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parser.add_argument(
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'-c',
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'--config',
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default=f'/etc/{PROG}/config.yaml',
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help='path to config',
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)
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parser.add_argument(
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'-d',
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'--data-dir',
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default=f'/usr/share/{PROG}',
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help='system data directory',
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)
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args = parser.parse_args()
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if not args.data_dir.endswith('/'):
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args.data_dir += '/'
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return args
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def main():
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args = parse_args()
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cloud_build = CB(args.config, args.data_dir)
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cloud_build.sync()
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if __name__ == '__main__':
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main()
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