nzbToMedia/core/version_check.py
2019-12-08 14:35:15 +13:00

537 lines
20 KiB
Python

# coding=utf-8
# Author: Nic Wolfe <nic@wolfeden.ca>
# Modified by: echel0n
from __future__ import (
absolute_import,
division,
print_function,
unicode_literals,
)
import os
import platform
import re
import shutil
import stat
import subprocess
import tarfile
import traceback
from six.moves.urllib.request import urlretrieve
import cleanup
import core
from core import github_api as github, logger
class CheckVersion(object):
"""Version checker that runs in a thread with the SB scheduler."""
def __init__(self):
self.install_type = self.find_install_type()
self.installed_version = None
self.installed_branch = None
if self.install_type == 'git':
self.updater = GitUpdateManager()
elif self.install_type == 'source':
self.updater = SourceUpdateManager()
else:
self.updater = None
def run(self):
self.check_for_new_version()
def find_install_type(self):
"""
Determine how this copy of SB was installed.
returns: type of installation. Possible values are:
'win': any compiled windows build
'git': running from source using git
'source': running from source without git
"""
# check if we're a windows build
if os.path.exists(os.path.join(core.APP_ROOT, u'.git')):
install_type = 'git'
else:
install_type = 'source'
return install_type
def check_for_new_version(self, force=False):
"""
Check the internet for a newer version.
returns: bool, True for new version or False for no new version.
force: if true the VERSION_NOTIFY setting will be ignored and a check will be forced
"""
if not core.VERSION_NOTIFY and not force:
logger.log(u'Version checking is disabled, not checking for the newest version')
return False
logger.log(u'Checking if {install} needs an update'.format(install=self.install_type))
if not self.updater.need_update():
core.NEWEST_VERSION_STRING = None
logger.log(u'No update needed')
return False
self.updater.set_newest_text()
return True
def update(self):
if self.updater.need_update():
result = self.updater.update()
cleanup.clean(cleanup.FOLDER_STRUCTURE)
return result
class UpdateManager(object):
def get_github_repo_user(self):
return core.GIT_USER
def get_github_repo(self):
return core.GIT_REPO
def get_github_branch(self):
return core.GIT_BRANCH
class GitUpdateManager(UpdateManager):
def __init__(self):
self._git_path = self._find_working_git()
self.github_repo_user = self.get_github_repo_user()
self.github_repo = self.get_github_repo()
self.branch = self._find_git_branch()
self._cur_commit_hash = None
self._newest_commit_hash = None
self._num_commits_behind = 0
self._num_commits_ahead = 0
def _git_error(self):
logger.debug(
'Unable to find your git executable - Set git_path in your autoProcessMedia.cfg OR delete your .git folder and run from source to enable updates.')
def _find_working_git(self):
test_cmd = 'version'
if core.GIT_PATH:
main_git = '"{git}"'.format(git=core.GIT_PATH)
else:
main_git = 'git'
logger.log(u'Checking if we can use git commands: {git} {cmd}'.format
(git=main_git, cmd=test_cmd), logger.DEBUG)
output, err, exit_status = self._run_git(main_git, test_cmd)
if exit_status == 0:
logger.log(u'Using: {git}'.format(git=main_git), logger.DEBUG)
return main_git
else:
logger.log(u'Not using: {git}'.format(git=main_git), logger.DEBUG)
# trying alternatives
alternative_git = []
# osx people who start SB from launchd have a broken path, so try a hail-mary attempt for them
if platform.system().lower() == 'darwin':
alternative_git.append('/usr/local/git/bin/git')
if platform.system().lower() == 'windows':
if main_git != main_git.lower():
alternative_git.append(main_git.lower())
if alternative_git:
logger.log(u'Trying known alternative git locations', logger.DEBUG)
for cur_git in alternative_git:
logger.log(u'Checking if we can use git commands: {git} {cmd}'.format
(git=cur_git, cmd=test_cmd), logger.DEBUG)
output, err, exit_status = self._run_git(cur_git, test_cmd)
if exit_status == 0:
logger.log(u'Using: {git}'.format(git=cur_git), logger.DEBUG)
return cur_git
else:
logger.log(u'Not using: {git}'.format(git=cur_git), logger.DEBUG)
# Still haven't found a working git
logger.debug('Unable to find your git executable - '
'Set git_path in your autoProcessMedia.cfg OR '
'delete your .git folder and run from source to enable updates.')
return None
def _run_git(self, git_path, args):
output = None
err = None
if not git_path:
logger.log(u'No git specified, can\'t use git commands', logger.DEBUG)
exit_status = 1
return output, err, exit_status
cmd = '{git} {args}'.format(git=git_path, args=args)
try:
logger.log(u'Executing {cmd} with your shell in {directory}'.format
(cmd=cmd, directory=core.APP_ROOT), logger.DEBUG)
p = subprocess.Popen(cmd, stdin=subprocess.PIPE, stdout=subprocess.PIPE, stderr=subprocess.STDOUT,
shell=True, cwd=core.APP_ROOT)
output, err = p.communicate()
exit_status = p.returncode
output = output.decode('utf-8')
if output:
output = output.strip()
if core.LOG_GIT:
logger.log(u'git output: {output}'.format(output=output), logger.DEBUG)
except OSError:
logger.log(u'Command {cmd} didn\'t work'.format(cmd=cmd))
exit_status = 1
exit_status = 128 if ('fatal:' in output) or err else exit_status
if exit_status == 0:
logger.log(u'{cmd} : returned successful'.format(cmd=cmd), logger.DEBUG)
exit_status = 0
elif core.LOG_GIT and exit_status in (1, 128):
logger.log(u'{cmd} returned : {output}'.format
(cmd=cmd, output=output), logger.DEBUG)
else:
if core.LOG_GIT:
logger.log(u'{cmd} returned : {output}, treat as error for now'.format
(cmd=cmd, output=output), logger.DEBUG)
exit_status = 1
return output, err, exit_status
def _find_installed_version(self):
"""
Attempt to find the currently installed version of Sick Beard.
Uses git show to get commit version.
Returns: True for success or False for failure
"""
output, err, exit_status = self._run_git(self._git_path, 'rev-parse HEAD') # @UnusedVariable
if exit_status == 0 and output:
cur_commit_hash = output.strip()
if not re.match('^[a-z0-9]+$', cur_commit_hash):
logger.log(u'Output doesn\'t look like a hash, not using it', logger.ERROR)
return False
self._cur_commit_hash = cur_commit_hash
if self._cur_commit_hash:
core.NZBTOMEDIA_VERSION = self._cur_commit_hash
return True
else:
return False
def _find_git_branch(self):
core.NZBTOMEDIA_BRANCH = self.get_github_branch()
branch_info, err, exit_status = self._run_git(self._git_path, 'symbolic-ref -q HEAD') # @UnusedVariable
if exit_status == 0 and branch_info:
branch = branch_info.strip().replace('refs/heads/', '', 1)
if branch:
core.NZBTOMEDIA_BRANCH = branch
core.GIT_BRANCH = branch
return core.GIT_BRANCH
def _check_github_for_update(self):
"""
Check Github for a new version.
Uses git commands to check if there is a newer version than
the provided commit hash. If there is a newer version it
sets _num_commits_behind.
"""
self._newest_commit_hash = None
self._num_commits_behind = 0
self._num_commits_ahead = 0
# get all new info from github
output, err, exit_status = self._run_git(self._git_path, 'fetch origin')
if not exit_status == 0:
logger.log(u'Unable to contact github, can\'t check for update', logger.ERROR)
return
# get latest commit_hash from remote
output, err, exit_status = self._run_git(self._git_path, 'rev-parse --verify --quiet \'@{upstream}\'')
if exit_status == 0 and output:
cur_commit_hash = output.strip()
if not re.match('^[a-z0-9]+$', cur_commit_hash):
logger.log(u'Output doesn\'t look like a hash, not using it', logger.DEBUG)
return
else:
self._newest_commit_hash = cur_commit_hash
else:
logger.log(u'git didn\'t return newest commit hash', logger.DEBUG)
return
# get number of commits behind and ahead (option --count not supported git < 1.7.2)
output, err, exit_status = self._run_git(self._git_path, 'rev-list --left-right \'@{upstream}\'...HEAD')
if exit_status == 0 and output:
try:
self._num_commits_behind = int(output.count('<'))
self._num_commits_ahead = int(output.count('>'))
except Exception:
logger.log(u'git didn\'t return numbers for behind and ahead, not using it', logger.DEBUG)
return
logger.log(u'cur_commit = {current} % (newest_commit)= {new}, '
u'num_commits_behind = {x}, num_commits_ahead = {y}'.format
(current=self._cur_commit_hash, new=self._newest_commit_hash,
x=self._num_commits_behind, y=self._num_commits_ahead), logger.DEBUG)
def set_newest_text(self):
if self._num_commits_ahead:
logger.log(u'Local branch is ahead of {branch}. Automatic update not possible.'.format
(branch=self.branch), logger.ERROR)
elif self._num_commits_behind:
logger.log(u'There is a newer version available (you\'re {x} commit{s} behind)'.format
(x=self._num_commits_behind, s=u's' if self._num_commits_behind > 1 else u''), logger.MESSAGE)
else:
return
def need_update(self):
if not self._find_installed_version():
logger.error('Unable to determine installed version via git, please check your logs!')
return False
if not self._cur_commit_hash:
return True
else:
try:
self._check_github_for_update()
except Exception as error:
logger.log(u'Unable to contact github, can\'t check for update: {msg!r}'.format(msg=error), logger.ERROR)
return False
if self._num_commits_behind > 0:
return True
return False
def update(self):
"""
Check git for a new version.
Calls git pull origin <branch> in order to update Sick Beard.
Returns a bool depending on the call's success.
"""
output, err, exit_status = self._run_git(self._git_path, 'pull origin {branch}'.format(branch=self.branch)) # @UnusedVariable
if exit_status == 0:
return True
return False
class SourceUpdateManager(UpdateManager):
def __init__(self):
self.github_repo_user = self.get_github_repo_user()
self.github_repo = self.get_github_repo()
self.branch = self.get_github_branch()
self._cur_commit_hash = None
self._newest_commit_hash = None
self._num_commits_behind = 0
def _find_installed_version(self):
version_file = os.path.join(core.APP_ROOT, u'version.txt')
if not os.path.isfile(version_file):
self._cur_commit_hash = None
return
try:
with open(version_file, 'r') as fp:
self._cur_commit_hash = fp.read().strip(' \n\r')
except EnvironmentError as error:
logger.log(u'Unable to open \'version.txt\': {msg}'.format(msg=error), logger.DEBUG)
if not self._cur_commit_hash:
self._cur_commit_hash = None
else:
core.NZBTOMEDIA_VERSION = self._cur_commit_hash
def need_update(self):
self._find_installed_version()
try:
self._check_github_for_update()
except Exception as error:
logger.log(u'Unable to contact github, can\'t check for update: {msg!r}'.format(msg=error), logger.ERROR)
return False
if not self._cur_commit_hash or self._num_commits_behind > 0:
return True
return False
def _check_github_for_update(self):
"""
Check Github for a new version.
Uses pygithub to ask github if there is a newer version than
the provided commit hash. If there is a newer version it sets
Sick Beard's version text.
commit_hash: hash that we're checking against
"""
self._num_commits_behind = 0
self._newest_commit_hash = None
gh = github.GitHub(self.github_repo_user, self.github_repo, self.branch)
# try to get newest commit hash and commits behind directly by comparing branch and current commit
if self._cur_commit_hash:
branch_compared = gh.compare(base=self.branch, head=self._cur_commit_hash)
if 'base_commit' in branch_compared:
self._newest_commit_hash = branch_compared['base_commit']['sha']
if 'behind_by' in branch_compared:
self._num_commits_behind = int(branch_compared['behind_by'])
# fall back and iterate over last 100 (items per page in gh_api) commits
if not self._newest_commit_hash:
for curCommit in gh.commits():
if not self._newest_commit_hash:
self._newest_commit_hash = curCommit['sha']
if not self._cur_commit_hash:
break
if curCommit['sha'] == self._cur_commit_hash:
break
# when _cur_commit_hash doesn't match anything _num_commits_behind == 100
self._num_commits_behind += 1
logger.log(u'cur_commit = {current} % (newest_commit)= {new}, num_commits_behind = {x}'.format
(current=self._cur_commit_hash, new=self._newest_commit_hash, x=self._num_commits_behind), logger.DEBUG)
def set_newest_text(self):
# if we're up to date then don't set this
core.NEWEST_VERSION_STRING = None
if not self._cur_commit_hash:
logger.log(u'Unknown current version number, don\'t know if we should update or not', logger.ERROR)
elif self._num_commits_behind > 0:
logger.log(u'There is a newer version available (you\'re {x} commit{s} behind)'.format
(x=self._num_commits_behind, s=u's' if self._num_commits_behind > 1 else u''), logger.MESSAGE)
else:
return
def update(self):
"""Download and install latest source tarball from github."""
tar_download_url = 'https://github.com/{org}/{repo}/tarball/{branch}'.format(
org=self.github_repo_user, repo=self.github_repo, branch=self.branch)
version_path = os.path.join(core.APP_ROOT, u'version.txt')
try:
# prepare the update dir
sb_update_dir = os.path.join(core.APP_ROOT, u'sb-update')
if os.path.isdir(sb_update_dir):
logger.log(u'Clearing out update folder {dir} before extracting'.format(dir=sb_update_dir))
shutil.rmtree(sb_update_dir)
logger.log(u'Creating update folder {dir} before extracting'.format(dir=sb_update_dir))
os.makedirs(sb_update_dir)
# retrieve file
logger.log(u'Downloading update from {url!r}'.format(url=tar_download_url))
tar_download_path = os.path.join(sb_update_dir, u'nzbtomedia-update.tar')
urlretrieve(tar_download_url, tar_download_path)
if not os.path.isfile(tar_download_path):
logger.log(u'Unable to retrieve new version from {url}, can\'t update'.format
(url=tar_download_url), logger.ERROR)
return False
if not tarfile.is_tarfile(tar_download_path):
logger.log(u'Retrieved version from {url} is corrupt, can\'t update'.format
(url=tar_download_url), logger.ERROR)
return False
# extract to sb-update dir
logger.log(u'Extracting file {path}'.format(path=tar_download_path))
tar = tarfile.open(tar_download_path)
tar.extractall(sb_update_dir)
tar.close()
# delete .tar.gz
logger.log(u'Deleting file {path}'.format(path=tar_download_path))
os.remove(tar_download_path)
# find update dir name
update_dir_contents = [x for x in os.listdir(sb_update_dir) if
os.path.isdir(os.path.join(sb_update_dir, x))]
if len(update_dir_contents) != 1:
logger.log(u'Invalid update data, update failed: {0}'.format(update_dir_contents), logger.ERROR)
return False
content_dir = os.path.join(sb_update_dir, update_dir_contents[0])
# walk temp folder and move files to main folder
logger.log(u'Moving files from {source} to {destination}'.format
(source=content_dir, destination=core.APP_ROOT))
for dirname, _, filenames in os.walk(content_dir): # @UnusedVariable
dirname = dirname[len(content_dir) + 1:]
for curfile in filenames:
old_path = os.path.join(content_dir, dirname, curfile)
new_path = os.path.join(core.APP_ROOT, dirname, curfile)
# Avoid DLL access problem on WIN32/64
# These files needing to be updated manually
# or find a way to kill the access from memory
if curfile in ('unrar.dll', 'unrar64.dll'):
try:
os.chmod(new_path, stat.S_IWRITE)
os.remove(new_path)
os.renames(old_path, new_path)
except Exception as error:
logger.log(u'Unable to update {path}: {msg}'.format
(path=new_path, msg=error), logger.DEBUG)
os.remove(old_path) # Trash the updated file without moving in new path
continue
if os.path.isfile(new_path):
os.remove(new_path)
os.renames(old_path, new_path)
# update version.txt with commit hash
try:
with open(version_path, 'w') as ver_file:
ver_file.write(self._newest_commit_hash)
except EnvironmentError as error:
logger.log(u'Unable to write version file, update not complete: {msg}'.format
(msg=error), logger.ERROR)
return False
except Exception as error:
logger.log(u'Error while trying to update: {msg}'.format
(msg=error), logger.ERROR)
logger.log(u'Traceback: {error}'.format(error=traceback.format_exc()), logger.DEBUG)
return False
return True