mirror of
https://github.com/yt-dlp/yt-dlp.git
synced 2024-12-05 18:08:05 -05:00
f95a92b3d0
Authored by: seproDev
573 lines
23 KiB
Python
573 lines
23 KiB
Python
from __future__ import annotations
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import atexit
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import contextlib
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import functools
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import hashlib
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import json
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import os
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import platform
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import re
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import subprocess
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import sys
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from dataclasses import dataclass
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from zipimport import zipimporter
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from .networking import Request
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from .networking.exceptions import HTTPError, network_exceptions
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from .utils import (
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NO_DEFAULT,
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Popen,
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deprecation_warning,
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format_field,
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remove_end,
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shell_quote,
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system_identifier,
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version_tuple,
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)
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from .version import (
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CHANNEL,
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ORIGIN,
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RELEASE_GIT_HEAD,
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UPDATE_HINT,
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VARIANT,
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__version__,
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)
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UPDATE_SOURCES = {
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'stable': 'yt-dlp/yt-dlp',
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'nightly': 'yt-dlp/yt-dlp-nightly-builds',
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'master': 'yt-dlp/yt-dlp-master-builds',
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}
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REPOSITORY = UPDATE_SOURCES['stable']
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_INVERSE_UPDATE_SOURCES = {value: key for key, value in UPDATE_SOURCES.items()}
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_VERSION_RE = re.compile(r'(\d+\.)*\d+')
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_HASH_PATTERN = r'[\da-f]{40}'
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_COMMIT_RE = re.compile(rf'Generated from: https://(?:[^/?#]+/){{3}}commit/(?P<hash>{_HASH_PATTERN})')
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API_BASE_URL = 'https://api.github.com/repos'
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# Backwards compatibility variables for the current channel
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API_URL = f'{API_BASE_URL}/{REPOSITORY}/releases'
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@functools.cache
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def _get_variant_and_executable_path():
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"""@returns (variant, executable_path)"""
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if getattr(sys, 'frozen', False):
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path = sys.executable
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if not hasattr(sys, '_MEIPASS'):
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return 'py2exe', path
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elif sys._MEIPASS == os.path.dirname(path):
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return f'{sys.platform}_dir', path
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elif sys.platform == 'darwin':
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machine = '_legacy' if version_tuple(platform.mac_ver()[0]) < (10, 15) else ''
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else:
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machine = f'_{platform.machine().lower()}'
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# Ref: https://en.wikipedia.org/wiki/Uname#Examples
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if machine[1:] in ('x86', 'x86_64', 'amd64', 'i386', 'i686'):
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machine = '_x86' if platform.architecture()[0][:2] == '32' else ''
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# sys.executable returns a /tmp/ path for staticx builds (linux_static)
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# Ref: https://staticx.readthedocs.io/en/latest/usage.html#run-time-information
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if static_exe_path := os.getenv('STATICX_PROG_PATH'):
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path = static_exe_path
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return f'{remove_end(sys.platform, "32")}{machine}_exe', path
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path = os.path.dirname(__file__)
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if isinstance(__loader__, zipimporter):
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return 'zip', os.path.join(path, '..')
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elif (os.path.basename(sys.argv[0]) in ('__main__.py', '-m')
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and os.path.exists(os.path.join(path, '../.git/HEAD'))):
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return 'source', path
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return 'unknown', path
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def detect_variant():
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return VARIANT or _get_variant_and_executable_path()[0]
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@functools.cache
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def current_git_head():
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if detect_variant() != 'source':
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return
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with contextlib.suppress(Exception):
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stdout, _, _ = Popen.run(
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['git', 'rev-parse', '--short', 'HEAD'],
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text=True, cwd=os.path.dirname(os.path.abspath(__file__)),
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stdout=subprocess.PIPE, stderr=subprocess.PIPE)
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if re.fullmatch('[0-9a-f]+', stdout.strip()):
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return stdout.strip()
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_FILE_SUFFIXES = {
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'zip': '',
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'win_exe': '.exe',
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'win_x86_exe': '_x86.exe',
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'darwin_exe': '_macos',
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'darwin_legacy_exe': '_macos_legacy',
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'linux_exe': '_linux',
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'linux_aarch64_exe': '_linux_aarch64',
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'linux_armv7l_exe': '_linux_armv7l',
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}
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_NON_UPDATEABLE_REASONS = {
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**{variant: None for variant in _FILE_SUFFIXES}, # Updatable
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**{variant: f'Auto-update is not supported for unpackaged {name} executable; Re-download the latest release'
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for variant, name in {'win32_dir': 'Windows', 'darwin_dir': 'MacOS', 'linux_dir': 'Linux'}.items()},
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'py2exe': 'py2exe is no longer supported by yt-dlp; This executable cannot be updated',
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'source': 'You cannot update when running from source code; Use git to pull the latest changes',
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'unknown': 'You installed yt-dlp from a manual build or with a package manager; Use that to update',
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'other': 'You are using an unofficial build of yt-dlp; Build the executable again',
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}
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def is_non_updateable():
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if UPDATE_HINT:
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return UPDATE_HINT
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return _NON_UPDATEABLE_REASONS.get(
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detect_variant(), _NON_UPDATEABLE_REASONS['unknown' if VARIANT else 'other'])
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def _get_binary_name():
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return format_field(_FILE_SUFFIXES, detect_variant(), template='yt-dlp%s', ignore=None, default=None)
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def _get_system_deprecation():
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MIN_SUPPORTED, MIN_RECOMMENDED = (3, 9), (3, 9)
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if sys.version_info > MIN_RECOMMENDED:
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return None
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major, minor = sys.version_info[:2]
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PYTHON_MSG = f'Please update to Python {".".join(map(str, MIN_RECOMMENDED))} or above'
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if sys.version_info < MIN_SUPPORTED:
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return f'Python version {major}.{minor} is no longer supported! {PYTHON_MSG}'
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return f'Support for Python version {major}.{minor} has been deprecated. {PYTHON_MSG}'
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def _sha256_file(path):
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h = hashlib.sha256()
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mv = memoryview(bytearray(128 * 1024))
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with open(os.path.realpath(path), 'rb', buffering=0) as f:
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for n in iter(lambda: f.readinto(mv), 0):
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h.update(mv[:n])
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return h.hexdigest()
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def _make_label(origin, tag, version=None):
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if '/' in origin:
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channel = _INVERSE_UPDATE_SOURCES.get(origin, origin)
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else:
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channel = origin
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label = f'{channel}@{tag}'
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if version and version != tag:
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label += f' build {version}'
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if channel != origin:
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label += f' from {origin}'
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return label
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@dataclass
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class UpdateInfo:
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"""
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Update target information
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Can be created by `query_update()` or manually.
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Attributes:
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tag The release tag that will be updated to. If from query_update,
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the value is after API resolution and update spec processing.
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The only property that is required.
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version The actual numeric version (if available) of the binary to be updated to,
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after API resolution and update spec processing. (default: None)
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requested_version Numeric version of the binary being requested (if available),
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after API resolution only. (default: None)
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commit Commit hash (if available) of the binary to be updated to,
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after API resolution and update spec processing. (default: None)
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This value will only match the RELEASE_GIT_HEAD of prerelease builds.
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binary_name Filename of the binary to be updated to. (default: current binary name)
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checksum Expected checksum (if available) of the binary to be
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updated to. (default: None)
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"""
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tag: str
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version: str | None = None
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requested_version: str | None = None
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commit: str | None = None
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binary_name: str | None = _get_binary_name() # noqa: RUF009: Always returns the same value
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checksum: str | None = None
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class Updater:
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# XXX: use class variables to simplify testing
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_channel = CHANNEL
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_origin = ORIGIN
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_update_sources = UPDATE_SOURCES
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def __init__(self, ydl, target: str | None = None):
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self.ydl = ydl
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# For backwards compat, target needs to be treated as if it could be None
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self.requested_channel, sep, self.requested_tag = (target or self._channel).rpartition('@')
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# Check if requested_tag is actually the requested repo/channel
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if not sep and ('/' in self.requested_tag or self.requested_tag in self._update_sources):
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self.requested_channel = self.requested_tag
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self.requested_tag: str = None # type: ignore (we set it later)
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elif not self.requested_channel:
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# User did not specify a channel, so we are requesting the default channel
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self.requested_channel = self._channel.partition('@')[0]
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# --update should not be treated as an exact tag request even if CHANNEL has a @tag
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self._exact = bool(target) and target != self._channel
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if not self.requested_tag:
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# User did not specify a tag, so we request 'latest' and track that no exact tag was passed
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self.requested_tag = 'latest'
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self._exact = False
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if '/' in self.requested_channel:
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# requested_channel is actually a repository
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self.requested_repo = self.requested_channel
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if not self.requested_repo.startswith('yt-dlp/') and self.requested_repo != self._origin:
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self.ydl.report_warning(
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f'You are switching to an {self.ydl._format_err("unofficial", "red")} executable '
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f'from {self.ydl._format_err(self.requested_repo, self.ydl.Styles.EMPHASIS)}. '
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f'Run {self.ydl._format_err("at your own risk", "light red")}')
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self._block_restart('Automatically restarting into custom builds is disabled for security reasons')
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else:
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# Check if requested_channel resolves to a known repository or else raise
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self.requested_repo = self._update_sources.get(self.requested_channel)
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if not self.requested_repo:
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self._report_error(
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f'Invalid update channel {self.requested_channel!r} requested. '
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f'Valid channels are {", ".join(self._update_sources)}', True)
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self._identifier = f'{detect_variant()} {system_identifier()}'
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@property
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def current_version(self):
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"""Current version"""
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return __version__
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@property
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def current_commit(self):
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"""Current commit hash"""
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return RELEASE_GIT_HEAD
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def _download_asset(self, name, tag=None):
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if not tag:
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tag = self.requested_tag
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path = 'latest/download' if tag == 'latest' else f'download/{tag}'
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url = f'https://github.com/{self.requested_repo}/releases/{path}/{name}'
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self.ydl.write_debug(f'Downloading {name} from {url}')
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return self.ydl.urlopen(url).read()
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def _call_api(self, tag):
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tag = f'tags/{tag}' if tag != 'latest' else tag
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url = f'{API_BASE_URL}/{self.requested_repo}/releases/{tag}'
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self.ydl.write_debug(f'Fetching release info: {url}')
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return json.loads(self.ydl.urlopen(Request(url, headers={
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'Accept': 'application/vnd.github+json',
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'User-Agent': 'yt-dlp',
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'X-GitHub-Api-Version': '2022-11-28',
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})).read().decode())
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def _get_version_info(self, tag: str) -> tuple[str | None, str | None]:
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if _VERSION_RE.fullmatch(tag):
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return tag, None
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api_info = self._call_api(tag)
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if tag == 'latest':
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requested_version = api_info['tag_name']
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else:
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match = re.search(rf'\s+(?P<version>{_VERSION_RE.pattern})$', api_info.get('name', ''))
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requested_version = match.group('version') if match else None
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if re.fullmatch(_HASH_PATTERN, api_info.get('target_commitish', '')):
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target_commitish = api_info['target_commitish']
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else:
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match = _COMMIT_RE.match(api_info.get('body', ''))
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target_commitish = match.group('hash') if match else None
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if not (requested_version or target_commitish):
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self._report_error('One of either version or commit hash must be available on the release', expected=True)
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return requested_version, target_commitish
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def _download_update_spec(self, source_tags):
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for tag in source_tags:
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try:
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return self._download_asset('_update_spec', tag=tag).decode()
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except network_exceptions as error:
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if isinstance(error, HTTPError) and error.status == 404:
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continue
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self._report_network_error(f'fetch update spec: {error}')
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return None
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self._report_error(
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f'The requested tag {self.requested_tag} does not exist for {self.requested_repo}', True)
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return None
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def _process_update_spec(self, lockfile: str, resolved_tag: str):
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lines = lockfile.splitlines()
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is_version2 = any(line.startswith('lockV2 ') for line in lines)
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for line in lines:
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if is_version2:
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if not line.startswith(f'lockV2 {self.requested_repo} '):
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continue
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_, _, tag, pattern = line.split(' ', 3)
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else:
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if not line.startswith('lock '):
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continue
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_, tag, pattern = line.split(' ', 2)
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if re.match(pattern, self._identifier):
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if _VERSION_RE.fullmatch(tag):
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if not self._exact:
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return tag
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elif self._version_compare(tag, resolved_tag):
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return resolved_tag
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elif tag != resolved_tag:
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continue
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self._report_error(
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f'yt-dlp cannot be updated to {resolved_tag} since you are on an older Python version '
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'or your operating system is not compatible with the requested build', True)
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return None
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return resolved_tag
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def _version_compare(self, a: str, b: str):
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"""
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Compare two version strings
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This function SHOULD NOT be called if self._exact == True
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"""
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if _VERSION_RE.fullmatch(f'{a}.{b}'):
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return version_tuple(a) >= version_tuple(b)
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return a == b
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def query_update(self, *, _output=False) -> UpdateInfo | None:
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"""Fetches info about the available update
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@returns An `UpdateInfo` if there is an update available, else None
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"""
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if not self.requested_repo:
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self._report_error('No target repository could be determined from input')
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return None
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try:
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requested_version, target_commitish = self._get_version_info(self.requested_tag)
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except network_exceptions as e:
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self._report_network_error(f'obtain version info ({e})', delim='; Please try again later or')
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return None
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if self._exact and self._origin != self.requested_repo:
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has_update = True
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elif requested_version:
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if self._exact:
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has_update = self.current_version != requested_version
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else:
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has_update = not self._version_compare(self.current_version, requested_version)
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elif target_commitish:
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has_update = target_commitish != self.current_commit
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else:
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has_update = False
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resolved_tag = requested_version if self.requested_tag == 'latest' else self.requested_tag
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current_label = _make_label(self._origin, self._channel.partition('@')[2] or self.current_version, self.current_version)
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requested_label = _make_label(self.requested_repo, resolved_tag, requested_version)
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latest_or_requested = f'{"Latest" if self.requested_tag == "latest" else "Requested"} version: {requested_label}'
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if not has_update:
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if _output:
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self.ydl.to_screen(f'{latest_or_requested}\nyt-dlp is up to date ({current_label})')
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return None
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update_spec = self._download_update_spec(('latest', None) if requested_version else (None,))
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if not update_spec:
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return None
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# `result_` prefixed vars == post-_process_update_spec() values
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result_tag = self._process_update_spec(update_spec, resolved_tag)
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if not result_tag or result_tag == self.current_version:
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return None
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elif result_tag == resolved_tag:
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result_version = requested_version
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elif _VERSION_RE.fullmatch(result_tag):
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result_version = result_tag
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else: # actual version being updated to is unknown
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result_version = None
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checksum = None
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# Non-updateable variants can get update_info but need to skip checksum
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if not is_non_updateable():
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try:
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hashes = self._download_asset('SHA2-256SUMS', result_tag)
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except network_exceptions as error:
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if not isinstance(error, HTTPError) or error.status != 404:
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self._report_network_error(f'fetch checksums: {error}')
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return None
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self.ydl.report_warning('No hash information found for the release, skipping verification')
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else:
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for ln in hashes.decode().splitlines():
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if ln.endswith(_get_binary_name()):
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checksum = ln.split()[0]
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break
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if not checksum:
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self.ydl.report_warning('The hash could not be found in the checksum file, skipping verification')
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if _output:
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update_label = _make_label(self.requested_repo, result_tag, result_version)
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self.ydl.to_screen(
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f'Current version: {current_label}\n{latest_or_requested}'
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+ (f'\nUpgradable to: {update_label}' if update_label != requested_label else ''))
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return UpdateInfo(
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tag=result_tag,
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version=result_version,
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requested_version=requested_version,
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commit=target_commitish if result_tag == resolved_tag else None,
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checksum=checksum)
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def update(self, update_info=NO_DEFAULT):
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"""Update yt-dlp executable to the latest version
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@param update_info `UpdateInfo | None` as returned by query_update()
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"""
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if update_info is NO_DEFAULT:
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update_info = self.query_update(_output=True)
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if not update_info:
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return False
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err = is_non_updateable()
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if err:
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self._report_error(err, True)
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return False
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self.ydl.to_screen(f'Current Build Hash: {_sha256_file(self.filename)}')
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update_label = _make_label(self.requested_repo, update_info.tag, update_info.version)
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self.ydl.to_screen(f'Updating to {update_label} ...')
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directory = os.path.dirname(self.filename)
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if not os.access(self.filename, os.W_OK):
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return self._report_permission_error(self.filename)
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elif not os.access(directory, os.W_OK):
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return self._report_permission_error(directory)
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new_filename, old_filename = f'{self.filename}.new', f'{self.filename}.old'
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if detect_variant() == 'zip': # Can be replaced in-place
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new_filename, old_filename = self.filename, None
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|
|
|
try:
|
|
if os.path.exists(old_filename or ''):
|
|
os.remove(old_filename)
|
|
except OSError:
|
|
return self._report_error('Unable to remove the old version')
|
|
|
|
try:
|
|
newcontent = self._download_asset(update_info.binary_name, update_info.tag)
|
|
except network_exceptions as e:
|
|
if isinstance(e, HTTPError) and e.status == 404:
|
|
return self._report_error(
|
|
f'The requested tag {self.requested_repo}@{update_info.tag} does not exist', True)
|
|
return self._report_network_error(f'fetch updates: {e}', tag=update_info.tag)
|
|
|
|
if not update_info.checksum:
|
|
self._block_restart('Automatically restarting into unverified builds is disabled for security reasons')
|
|
elif hashlib.sha256(newcontent).hexdigest() != update_info.checksum:
|
|
return self._report_network_error('verify the new executable', tag=update_info.tag)
|
|
|
|
try:
|
|
with open(new_filename, 'wb') as outf:
|
|
outf.write(newcontent)
|
|
except OSError:
|
|
return self._report_permission_error(new_filename)
|
|
|
|
if old_filename:
|
|
mask = os.stat(self.filename).st_mode
|
|
try:
|
|
os.rename(self.filename, old_filename)
|
|
except OSError:
|
|
return self._report_error('Unable to move current version')
|
|
|
|
try:
|
|
os.rename(new_filename, self.filename)
|
|
except OSError:
|
|
self._report_error('Unable to overwrite current version')
|
|
return os.rename(old_filename, self.filename)
|
|
|
|
variant = detect_variant()
|
|
if variant.startswith('win'):
|
|
atexit.register(Popen, f'ping 127.0.0.1 -n 5 -w 1000 & del /F "{old_filename}"',
|
|
shell=True, stdout=subprocess.DEVNULL, stderr=subprocess.DEVNULL)
|
|
elif old_filename:
|
|
try:
|
|
os.remove(old_filename)
|
|
except OSError:
|
|
self._report_error('Unable to remove the old version')
|
|
|
|
try:
|
|
os.chmod(self.filename, mask)
|
|
except OSError:
|
|
return self._report_error(
|
|
f'Unable to set permissions. Run: sudo chmod a+rx {shell_quote(self.filename)}')
|
|
|
|
self.ydl.to_screen(f'Updated yt-dlp to {update_label}')
|
|
return True
|
|
|
|
@functools.cached_property
|
|
def filename(self):
|
|
"""Filename of the executable"""
|
|
return os.path.realpath(_get_variant_and_executable_path()[1])
|
|
|
|
@functools.cached_property
|
|
def cmd(self):
|
|
"""The command-line to run the executable, if known"""
|
|
# There is no sys.orig_argv in py < 3.10. Also, it can be [] when frozen
|
|
if getattr(sys, 'orig_argv', None):
|
|
return sys.orig_argv
|
|
elif getattr(sys, 'frozen', False):
|
|
return sys.argv
|
|
|
|
def restart(self):
|
|
"""Restart the executable"""
|
|
assert self.cmd, 'Must be frozen or Py >= 3.10'
|
|
self.ydl.write_debug(f'Restarting: {shell_quote(self.cmd)}')
|
|
_, _, returncode = Popen.run(self.cmd)
|
|
return returncode
|
|
|
|
def _block_restart(self, msg):
|
|
def wrapper():
|
|
self._report_error(f'{msg}. Restart yt-dlp to use the updated version', expected=True)
|
|
return self.ydl._download_retcode
|
|
self.restart = wrapper
|
|
|
|
def _report_error(self, msg, expected=False):
|
|
self.ydl.report_error(msg, tb=False if expected else None)
|
|
self.ydl._download_retcode = 100
|
|
|
|
def _report_permission_error(self, file):
|
|
self._report_error(f'Unable to write to {file}; try running as administrator', True)
|
|
|
|
def _report_network_error(self, action, delim=';', tag=None):
|
|
if not tag:
|
|
tag = self.requested_tag
|
|
path = tag if tag == 'latest' else f'tag/{tag}'
|
|
self._report_error(
|
|
f'Unable to {action}{delim} visit '
|
|
f'https://github.com/{self.requested_repo}/releases/{path}', True)
|
|
|
|
|
|
def run_update(ydl):
|
|
"""Update the program file with the latest version from the repository
|
|
@returns Whether there was a successful update (No update = False)
|
|
"""
|
|
deprecation_warning(
|
|
'"yt_dlp.update.run_update(ydl)" is deprecated and may be removed in a future version. '
|
|
'Use "yt_dlp.update.Updater(ydl).update()" instead')
|
|
return Updater(ydl).update()
|
|
|
|
|
|
__all__ = ['Updater']
|