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[cleanup] Refactor updater 

The updater now uses `.update.run_update` and not `.update.update_self`.
Although I don't expect anyone to be using the updater via API, a wrapper `update_self` is provided for compatibility just in case
This commit is contained in:
pukkandan 2021-05-26 01:13:08 +05:30
parent 5435dcf96e
commit c19bc311cb
No known key found for this signature in database
GPG Key ID: 0F00D95A001F4698
3 changed files with 75 additions and 70 deletions
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3
yt_dlp/YoutubeDL.py
View File

@ -734,7 +734,8 @@ class YoutubeDL(object):
else:
tb_data = traceback.format_list(traceback.extract_stack())
tb = ''.join(tb_data)
self.to_stderr(tb)
if tb:
self.to_stderr(tb)
if not self.params.get('ignoreerrors', False):
if sys.exc_info()[0] and hasattr(sys.exc_info()[1], 'exc_info') and sys.exc_info()[1].exc_info[0]:
exc_info = sys.exc_info()[1].exc_info

4
yt_dlp/__init__.py
View File

@ -37,7 +37,7 @@ from .utils import (
std_headers,
write_string,
)
from .update import update_self
from .update import run_update
from .downloader import (
FileDownloader,
)
@ -663,7 +663,7 @@ def _real_main(argv=None):
# Update version
if opts.update_self:
# If updater returns True, exit. Required for windows
if update_self(ydl.to_screen, opts.verbose, ydl._opener):
if run_update(ydl):
if actual_use:
sys.exit('ERROR: The program must exit for the update to complete')
sys.exit()

138
yt_dlp/update.py
View File

@ -1,13 +1,13 @@
from __future__ import unicode_literals
import hashlib
import io
import json
import traceback
import hashlib
import os
import platform
import subprocess
import sys
import traceback
from zipimport import zipimporter
from .compat import compat_realpath
@ -33,6 +33,40 @@ def rsa_verify(message, signature, key):
def update_self(to_screen, verbose, opener):
''' Exists for backward compatibility. Use run_update(ydl) instead '''
printfn = to_screen
class FakeYDL():
_opener = opener
to_screen = printfn
@staticmethod
def report_warning(msg, *args, **kwargs):
return printfn('WARNING: %s' % msg, *args, **kwargs)
@staticmethod
def report_error(msg, tb=None):
printfn('ERROR: %s' % msg)
if not verbose:
return
if tb is None:
# Copied from YoutubeDl.trouble
if sys.exc_info()[0]:
tb = ''
if hasattr(sys.exc_info()[1], 'exc_info') and sys.exc_info()[1].exc_info[0]:
tb += ''.join(traceback.format_exception(*sys.exc_info()[1].exc_info))
tb += encode_compat_str(traceback.format_exc())
else:
tb_data = traceback.format_list(traceback.extract_stack())
tb = ''.join(tb_data)
if tb:
printfn(tb)
return run_update(FakeYDL())
def run_update(ydl):
"""
Update the program file with the latest version from the repository
Returns whether the program should terminate
@ -40,6 +74,11 @@ def update_self(to_screen, verbose, opener):
JSON_URL = 'https://api.github.com/repos/yt-dlp/yt-dlp/releases/latest'
def report_error(msg, network=False, expected=False, delim=';'):
if network:
msg += '%s Visit https://github.com/yt-dlp/yt-dlp/releases/latest' % delim
ydl.report_error(msg, tb='' if network or expected else None)
def calc_sha256sum(path):
h = hashlib.sha256()
b = bytearray(128 * 1024)
@ -50,112 +89,91 @@ def update_self(to_screen, verbose, opener):
return h.hexdigest()
if not isinstance(globals().get('__loader__'), zipimporter) and not hasattr(sys, 'frozen'):
to_screen('It looks like you installed yt-dlp with a package manager, pip, setup.py or a tarball. Please use that to update')
return
return report_error(
'It looks like you installed yt-dlp with a package manager, pip, setup.py or a tarball. '
'Please use that to update', expected=True)
# sys.executable is set to the full pathname of the exe-file for py2exe
# though symlinks are not followed so that we need to do this manually
# with help of realpath
filename = compat_realpath(sys.executable if hasattr(sys, 'frozen') else sys.argv[0])
to_screen('Current Build Hash %s' % calc_sha256sum(filename))
ydl.to_screen('Current Build Hash %s' % calc_sha256sum(filename))
# Download and check versions info
try:
version_info = opener.open(JSON_URL).read().decode('utf-8')
version_info = ydl._opener.open(JSON_URL).read().decode('utf-8')
version_info = json.loads(version_info)
except Exception:
if verbose:
to_screen(encode_compat_str(traceback.format_exc()))
to_screen('ERROR: can\'t obtain versions info. Please try again later')
to_screen('Visit https://github.com/yt-dlp/yt-dlp/releases/latest')
return
return report_error('can\'t obtain versions info. Please try again later ', True, delim='or')
def version_tuple(version_str):
return tuple(map(int, version_str.split('.')))
version_id = version_info['tag_name']
if version_tuple(__version__) >= version_tuple(version_id):
to_screen('yt-dlp is up to date (%s)' % __version__)
ydl.to_screen('yt-dlp is up to date (%s)' % __version__)
return
to_screen('Updating to version ' + version_id + ' ...')
ydl.to_screen('Updating to version ' + version_id + ' ...')
version_labels = {
'zip_3': '',
'zip_2': '',
# 'zip_2': '_py2',
'exe_64': '.exe',
'exe_32': '_x86.exe',
}
def get_bin_info(bin_or_exe, version):
label = version_labels['%s_%s' % (bin_or_exe, version)]
return next(
(i for i in version_info['assets'] if i['name'] == 'yt-dlp%s' % label),
{})
return next((i for i in version_info['assets'] if i['name'] == 'yt-dlp%s' % label), {})
def get_sha256sum(bin_or_exe, version):
label = version_labels['%s_%s' % (bin_or_exe, version)]
urlh = next(
(i for i in version_info['assets']
if i['name'] in ('SHA2-256SUMS')), {}).get('browser_download_url')
(i for i in version_info['assets'] if i['name'] in ('SHA2-256SUMS')),
{}).get('browser_download_url')
if not urlh:
return None
hash_data = opener.open(urlh).read().decode('utf-8')
hash_data = ydl._opener.open(urlh).read().decode('utf-8')
hashes = list(map(lambda x: x.split(':'), hash_data.splitlines()))
return next(
(i[1] for i in hashes if i[0] == 'yt-dlp%s' % label),
None)
return next((i[1] for i in hashes if i[0] == 'yt-dlp%s' % label), None)
if not os.access(filename, os.W_OK):
to_screen('ERROR: no write permissions on %s' % filename)
return
return report_error('no write permissions on %s' % filename, expected=True)
# PyInstaller
if hasattr(sys, 'frozen'):
exe = filename
directory = os.path.dirname(exe)
if not os.access(directory, os.W_OK):
to_screen('ERROR: no write permissions on %s' % directory)
return
return report_error('no write permissions on %s' % directory, expected=True)
try:
arch = platform.architecture()[0][:2]
url = get_bin_info('exe', arch).get('browser_download_url')
if not url:
to_screen('ERROR: unable to fetch updates')
to_screen('Visit https://github.com/yt-dlp/yt-dlp/releases/latest')
return
urlh = opener.open(url)
return report_error('unable to fetch updates', True)
urlh = ydl._opener.open(url)
newcontent = urlh.read()
urlh.close()
except (IOError, OSError, StopIteration):
if verbose:
to_screen(encode_compat_str(traceback.format_exc()))
to_screen('ERROR: unable to download latest version')
to_screen('Visit https://github.com/yt-dlp/yt-dlp/releases/latest')
return
return report_error('unable to download latest version', True)
try:
with open(exe + '.new', 'wb') as outf:
outf.write(newcontent)
except (IOError, OSError):
if verbose:
to_screen(encode_compat_str(traceback.format_exc()))
to_screen('ERROR: unable to write the new version')
return
return report_error('unable to write the new version')
expected_sum = get_sha256sum('exe', arch)
if not expected_sum:
to_screen('WARNING: no hash information found for the release')
ydl.report_warning('no hash information found for the release')
elif calc_sha256sum(exe + '.new') != expected_sum:
to_screen('ERROR: unable to verify the new executable')
to_screen('Visit https://github.com/yt-dlp/yt-dlp/releases/latest')
report_error('unable to verify the new executable', True)
try:
os.remove(exe + '.new')
except OSError:
to_screen('ERROR: unable to remove corrupt download')
return
return report_error('unable to remove corrupt download')
try:
bat = os.path.join(directory, 'yt-dlp-updater.cmd')
@ -171,12 +189,9 @@ def update_self(to_screen, verbose, opener):
''' % (exe, exe, version_id))
subprocess.Popen([bat]) # Continues to run in the background
return True # Exit app
except (IOError, OSError):
if verbose:
to_screen(encode_compat_str(traceback.format_exc()))
to_screen('ERROR: unable to overwrite current version')
return
report_error('unable to overwrite current version')
return True # Exit app
# Zip unix package
elif isinstance(globals().get('__loader__'), zipimporter):
@ -184,35 +199,24 @@ def update_self(to_screen, verbose, opener):
py_ver = platform.python_version()[0]
url = get_bin_info('zip', py_ver).get('browser_download_url')
if not url:
to_screen('ERROR: unable to fetch updates')
to_screen('Visit https://github.com/yt-dlp/yt-dlp/releases/latest')
return
urlh = opener.open(url)
return report_error('unable to fetch updates', True)
urlh = ydl._opener.open(url)
newcontent = urlh.read()
urlh.close()
except (IOError, OSError, StopIteration):
if verbose:
to_screen(encode_compat_str(traceback.format_exc()))
to_screen('ERROR: unable to download latest version')
to_screen('Visit https://github.com/yt-dlp/yt-dlp/releases/latest')
return
return report_error('unable to download latest version', True)
expected_sum = get_sha256sum('zip', py_ver)
if expected_sum and hashlib.sha256(newcontent).hexdigest() != expected_sum:
to_screen('ERROR: unable to verify the new zip')
to_screen('Visit https://github.com/yt-dlp/yt-dlp/releases/latest')
return
return report_error('unable to verify the new zip', True)
try:
with open(filename, 'wb') as outf:
outf.write(newcontent)
except (IOError, OSError):
if verbose:
to_screen(encode_compat_str(traceback.format_exc()))
to_screen('ERROR: unable to overwrite current version')
return
return report_error('unable to overwrite current version')
to_screen('Updated yt-dlp. Restart yt-dlp to use the new version')
ydl.to_screen('Updated yt-dlp to version %s; Restart yt-dlp to use the new version' % version_id)
''' # UNUSED