Automated Daily Builds

.github/workflows/build.yml

@@ -0,0 +1,187 @@
+name: Build
+
+on:
+  workflow_dispatch:
+  schedule:
+    - cron: "0 2 * * *"
+
+jobs:
+  build_unix:
+    runs-on: ubuntu-latest
+    outputs:
+      version_suffix: ${{ steps.version_suffix.outputs.version_suffix }}
+      ytdl_version: ${{ steps.bump_version.outputs.ytdl_version }}
+      upload_url: ${{ steps.create_release.outputs.upload_url }}
+      sha256_bin: ${{ steps.sha256_bin.outputs.sha256_bin }}
+      sha512_bin: ${{ steps.sha512_bin.outputs.sha512_bin }}
+      sha256_tar: ${{ steps.sha256_tar.outputs.sha256_tar }}
+      sha512_tar: ${{ steps.sha512_tar.outputs.sha512_tar }}
+
+    steps:
+    - uses: actions/checkout@v2
+      with:
+        fetch-depth: 0
+    - name: Set up Python
+      uses: actions/setup-python@v2
+      with:
+          python-version: '3.8'
+    - name: Install packages
+      run: sudo apt-get -y install zip pandoc man
+    - name: Set version suffix
+      id: version_suffix
+      run: echo ::set-output name=version_suffix::$( printf '114514\n40298\n43044\n810\n1919\n19419\n334' | sort -R | head -n1 )
+    - name: Bump version
+      id: bump_version
+      run: |
+        python devscripts/update-version.py ${{ steps.version_suffix.outputs.version_suffix }}
+        make issuetemplates
+    - name: Push to release
+      id: push_release
+      run: echo ::set-output name=head_sha::$(git rev-parse HEAD)
+    - name: Get Changelog
+      id: get_changelog
+      run: |
+        changelog=$(cat Changelog.md | grep -oPz '(?s)(?<=### ${{ steps.bump_version.outputs.ytdl_version }}\n{2}).+?(?=\n{2,3}###)') || true
+        echo "changelog<<EOF" >> $GITHUB_ENV
+        echo "$changelog" >> $GITHUB_ENV
+        echo "EOF" >> $GITHUB_ENV
+
+    - name: Run Make
+      run: make all tar
+    - name: Get SHA2-256SUMS for youtube-dl
+      id: sha256_bin
+      run: echo "::set-output name=sha256_bin::$(sha256sum youtube-dl | awk '{print $1}')"
+    - name: Get SHA2-256SUMS for youtube-dl.tar.gz
+      id: sha256_tar
+      run: echo "::set-output name=sha256_tar::$(sha256sum youtube-dl.tar.gz | awk '{print $1}')"
+    - name: Get SHA2-512SUMS for youtube-dl
+      id: sha512_bin
+      run: echo "::set-output name=sha512_bin::$(sha512sum youtube-dl | awk '{print $1}')"
+    - name: Get SHA2-512SUMS for youtube-dl.tar.gz
+      id: sha512_tar
+      run: echo "::set-output name=sha512_tar::$(sha512sum youtube-dl.tar.gz | awk '{print $1}')"
+
+    - name: Create Release
+      id: create_release
+      uses: actions/create-release@v1
+      env:
+        GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+      with:
+        tag_name: ${{ steps.bump_version.outputs.ytdl_version }}
+        release_name: youtube-dl ${{ steps.bump_version.outputs.ytdl_version }}
+        commitish: ${{ steps.push_release.outputs.head_sha }}
+        body: This is a daily build of youtube-dl.
+        draft: false
+        prerelease: false
+    - name: Upload youtube-dl Unix binary
+      id: upload-release-asset
+      uses: actions/upload-release-asset@v1
+      env:
+        GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+      with:
+        upload_url: ${{ steps.create_release.outputs.upload_url }}
+        asset_path: ./youtube-dl
+        asset_name: youtube-dl
+        asset_content_type: application/octet-stream
+    - name: Upload Source tar
+      uses: actions/upload-release-asset@v1
+      env:
+        GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+      with:
+        upload_url: ${{ steps.create_release.outputs.upload_url }}
+        asset_path: ./youtube-dl.tar.gz
+        asset_name: youtube-dl-${{ steps.bump_version.outputs.ytdl_version }}.tar.gz
+        asset_content_type: application/gzip
+
+  build_windows:
+    runs-on: windows-2022
+    needs: build_unix
+    outputs:
+      sha256_win: ${{ steps.sha256_win.outputs.sha256_win }}
+      sha512_win: ${{ steps.sha512_win.outputs.sha512_win }}
+
+    steps:
+    - uses: actions/checkout@v2
+    # reason to choose 3.4: https://media.discordapp.net/attachments/807245652072857613/942409077701619742/unknown.png
+    - name: Set up Python 3.4
+      uses: actions/setup-python@v2
+      with:
+        python-version: '3.4'
+        architecture: 'x86'
+    - name: Install packages
+      # https://setuptools.pypa.io/en/latest/history.html#v44-0-0
+      # https://pypi.org/project/py2exe/0.9.2.2/
+      # https://pip.pypa.io/en/stable/news/#v19-2
+      # https://wheel.readthedocs.io/en/stable/news.html
+      run: python -m pip install --upgrade "pip<19.2" "setuptools<44" "wheel<0.34.0" py2exe==0.9.2.2
+    - name: Bump version
+      id: bump_version
+      env:
+        version_suffix: ${{ needs.build_unix.outputs.version_suffix }}
+      run: python devscripts/update-version.py ${{ env.version_suffix }}
+    # - name: Run PyInstaller Script
+    #   run: python -m PyInstaller --onefile --console --distpath dist/ -n youtube-dl youtube_dl\__main__.py
+    - name: Build EXE file
+      run: python setup.py py2exe
+    - name: Upload youtube-dl.exe Windows binary
+      id: upload-release-windows
+      uses: actions/upload-release-asset@v1
+      env:
+        GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+      with:
+        upload_url: ${{ needs.build_unix.outputs.upload_url }}
+        asset_path: ./youtube-dl.exe
+        asset_name: youtube-dl.exe
+        asset_content_type: application/vnd.microsoft.portable-executable
+    - name: Get SHA2-256SUMS for youtube-dl.exe
+      id: sha256_win
+      run: echo "::set-output name=sha256_win::$((Get-FileHash youtube-dl.exe -Algorithm SHA256).Hash.ToLower())"
+    - name: Get SHA2-512SUMS for youtube-dl.exe
+      id: sha512_win
+      run: echo "::set-output name=sha512_win::$((Get-FileHash youtube-dl.exe -Algorithm SHA512).Hash.ToLower())"
+
+  finish:
+    runs-on: ubuntu-latest
+    needs: [build_unix, build_windows]
+    env:
+      YTDL_VERSION: ${{ needs.build_unix.outputs.ytdl_version }}
+
+    steps:
+    - name: Make SHA2-256SUMS file
+      env:
+        SHA256_BIN: ${{ needs.build_unix.outputs.sha256_bin }}
+        SHA256_TAR: ${{ needs.build_unix.outputs.sha256_tar }}
+        SHA256_WIN: ${{ needs.build_windows.outputs.sha256_win }}
+      run: |
+        echo "${{ env.SHA256_BIN }}  youtube-dl" >> SHA2-256SUMS
+        echo "${{ env.SHA256_TAR }}  youtube-dl-${YTDL_VERSION}.tar.gz" >> SHA2-256SUMS
+        echo "${{ env.SHA256_WIN }}  youtube-dl.exe" >> SHA2-256SUMS
+    - name: Upload 256SUMS file
+      id: upload-sums
+      uses: actions/upload-release-asset@v1
+      env:
+        GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+      with:
+        upload_url: ${{ needs.build_unix.outputs.upload_url }}
+        asset_path: ./SHA2-256SUMS
+        asset_name: SHA2-256SUMS
+        asset_content_type: text/plain
+    - name: Make SHA2-512SUMS file
+      env:
+        SHA512_BIN: ${{ needs.build_unix.outputs.sha512_bin }}
+        SHA512_TAR: ${{ needs.build_unix.outputs.sha512_tar }}
+        SHA512_WIN: ${{ needs.build_windows.outputs.sha512_win }}
+      run: |
+        echo "${{ env.SHA512_BIN }}  youtube-dl" >> SHA2-512SUMS
+        echo "${{ env.SHA512_TAR }}  youtube-dl-${YTDL_VERSION}.tar.gz" >> SHA2-512SUMS
+        echo "${{ env.SHA512_WIN }}  youtube-dl.exe" >> SHA2-512SUMS
+    - name: Upload 512SUMS file
+      id: upload-512sums
+      uses: actions/upload-release-asset@v1
+      env:
+        GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+      with:
+        upload_url: ${{ needs.build_unix.outputs.upload_url }}
+        asset_path: ./SHA2-512SUMS
+        asset_name: SHA2-512SUMS
+        asset_content_type: text/plain

.github/workflows/rebase-on-upstream.yml

@@ -0,0 +1,17 @@
+name: Rebase on Upstream
+
+on:
+  schedule:
+    - cron: "0 0 * * *"
+  workflow_dispatch:
+
+jobs:
+  rebase:
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@master
+      with:
+        fetch-depth: 0
+    - uses: ytdl-patched/rebase-upstream-action@master
+      with:
+        token: ${{ secrets.GH_PAT }}

README.md

@@ -1,6 +1,9 @@
 [![Build Status](https://github.com/ytdl-org/youtube-dl/workflows/CI/badge.svg)](https://github.com/ytdl-org/youtube-dl/actions?query=workflow%3ACI)
 
 
+**This repository is for unofficial daily builds.**
+**Please do not open any issues nor pull requests.**
+
 youtube-dl - download videos from youtube.com or other video platforms
 
 - [INSTALLATION](#installation)

devscripts/update-version.py

@@ -0,0 +1,32 @@
+#!/usr/bin/env python3
+from datetime import datetime
+import sys
+
+
+with open('youtube_dl/version.py', 'rt') as f:
+    exec(compile(f.read(), 'youtube_dl/version.py', 'exec'))
+old_version = locals()['__version__']
+
+old_version_list = old_version.split('.')
+
+old_ver = '.'.join(old_version_list[:3])
+old_rev = old_version_list[3] if len(old_version_list) > 3 else ''
+
+ver = datetime.utcnow().strftime("%Y.%m.%d")
+
+rev = (sys.argv[1:] or [''])[0]  # Use first argument, if present as revision number
+if not rev:
+    rev = str(int(old_rev or 0) + 1) if old_ver == ver else ''
+
+VERSION = '.'.join((ver, rev)) if rev else ver
+
+VERSION_FILE = '''# Autogenerated by devscripts/update-version.py
+
+__version__ = {!r}
+'''.format(VERSION)
+
+with open('youtube_dl/version.py', 'wt') as f:
+    f.write(VERSION_FILE)
+
+print('::set-output name=ytdl_version::' + VERSION)
+print('\nVersion = %s' % VERSION)

youtube_dl/update.py

@@ -1,11 +1,12 @@
 from __future__ import unicode_literals
 
-import json
-import traceback
 import hashlib
+import json
 import os
+import platform
 import subprocess
 import sys
+import traceback
 from zipimport import zipimporter
 
 from .compat import (
@@ -17,176 +18,231 @@ from .utils import encode_compat_str
 from .version import __version__
 
 
-def rsa_verify(message, signature, key):
+def detect_variant():
-    from hashlib import sha256
+    if hasattr(sys, 'frozen'):
-    assert isinstance(message, bytes)
+        if getattr(sys, '_MEIPASS', None):
-    byte_size = (len(bin(key[0])) - 2 + 8 - 1) // 8
+            return 'win_exe'
-    signature = ('%x' % pow(int(signature, 16), key[1], key[0])).encode()
+        return 'py2exe'
-    signature = (byte_size * 2 - len(signature)) * b'0' + signature
+    elif isinstance(globals().get('__loader__'), zipimporter):
-    asn1 = b'3031300d060960864801650304020105000420'
+        return 'zip'
-    asn1 += sha256(message).hexdigest().encode()
+    elif os.path.basename(sys.argv[0]) == '__main__.py':
-    if byte_size < len(asn1) // 2 + 11:
+        return 'source'
-        return False
+    return 'unknown'
-    expected = b'0001' + (byte_size - len(asn1) // 2 - 3) * b'ff' + b'00' + asn1
-    return expected == signature
 
 
-def update_self(to_screen, verbose, opener):
+_NON_UPDATEABLE_REASONS = {
-    """Update the program file with the latest version from the repository"""
+    'win_exe': None,
+    'zip': None,
+    'mac_exe': None,
+    'py2exe': None,
+    'win_dir': 'Auto-update is not supported for unpackaged windows executable; Re-download the latest release',
+    'mac_dir': 'Auto-update is not supported for unpackaged MacOS executable; Re-download the latest release',
+    'source': 'You cannot update when running from source code; Use git to pull the latest changes',
+    'unknown': 'It looks like you installed youtube-dl with a package manager, pip or setup.py; Use that to update',
+}
 
-    UPDATE_URL = 'https://yt-dl.org/update/'
-    VERSION_URL = UPDATE_URL + 'LATEST_VERSION'
-    JSON_URL = UPDATE_URL + 'versions.json'
-    UPDATES_RSA_KEY = (0x9d60ee4d8f805312fdb15a62f87b95bd66177b91df176765d13514a0f1754bcd2057295c5b6f1d35daa6742c3ffc9a82d3e118861c207995a8031e151d863c9927e304576bc80692bc8e094896fcf11b66f3e29e04e3a71e9a11558558acea1840aec37fc396fb6b65dc81a1c4144e03bd1c011de62e3f1357b327d08426fe93, 65537)
 
-    if not isinstance(globals().get('__loader__'), zipimporter) and not hasattr(sys, 'frozen'):
+def is_non_updateable():
-        to_screen('It looks like you installed youtube-dl with a package manager, pip, setup.py or a tarball. Please use that to update.')
+    return _NON_UPDATEABLE_REASONS.get(detect_variant(), _NON_UPDATEABLE_REASONS['unknown'])
-        return
 
-    # Check if there is a new version
+
-    try:
+def run_update(ydl):
-        newversion = opener.open(VERSION_URL).read().decode('utf-8').strip()
+    """
-    except Exception:
+    Update the program file with the latest version from the repository
-        if verbose:
+    Returns whether the program should terminate
-            to_screen(encode_compat_str(traceback.format_exc()))
+    """
-        to_screen('ERROR: can\'t find the current version. Please try again later.')
+
-        return
+    JSON_URL = 'https://api.github.com/repos/ytdl-patched/youtube-dl/releases/latest'
-    if newversion == __version__:
+
-        to_screen('youtube-dl is up-to-date (' + __version__ + ')')
+    def report_error(msg, expected=False):
-        return
+        ydl.report_error(msg, tb='' if expected else None)
+
+    def report_unable(action, expected=False):
+        report_error('Unable to %s' % action, expected)
+
+    def report_permission_error(file):
+        report_unable('write to %s; Try running as administrator' % file, True)
+
+    def report_network_error(action, delim=';'):
+        report_unable('%s%s Visit  https://github.com/ytdl-patched/youtube-dl/releases/latest' % (action, delim), True)
+
+    def calc_sha256sum(path):
+        h = hashlib.sha256()
+        b = bytearray(128 * 1024)
+        mv = memoryview(b)
+        with open(os.path.realpath(path), 'rb', buffering=0) as f:
+            for n in iter(lambda: f.readinto(mv), 0):
+                h.update(mv[:n])
+        return h.hexdigest()
 
     # Download and check versions info
     try:
-        versions_info = opener.open(JSON_URL).read().decode('utf-8')
+        version_info = ydl._opener.open(JSON_URL).read().decode('utf-8')
-        versions_info = json.loads(versions_info)
+        version_info = json.loads(version_info)
     except Exception:
-        if verbose:
+        return report_network_error('obtain version info', delim='; Please try again later or')
-            to_screen(encode_compat_str(traceback.format_exc()))
-        to_screen('ERROR: can\'t obtain versions info. Please try again later.')
-        return
-    if 'signature' not in versions_info:
-        to_screen('ERROR: the versions file is not signed or corrupted. Aborting.')
-        return
-    signature = versions_info['signature']
-    del versions_info['signature']
-    if not rsa_verify(json.dumps(versions_info, sort_keys=True).encode('utf-8'), signature, UPDATES_RSA_KEY):
-        to_screen('ERROR: the versions file signature is invalid. Aborting.')
-        return
-
-    version_id = versions_info['latest']
 
     def version_tuple(version_str):
         return tuple(map(int, version_str.split('.')))
+
+    version_id = version_info['tag_name']
+    ydl.to_screen('Latest version: %s, Current version: %s' % (version_id, __version__))
     if version_tuple(__version__) >= version_tuple(version_id):
-        to_screen('youtube-dl is up to date (%s)' % __version__)
+        ydl.to_screen('youtube-dl is up to date (%s)' % __version__)
         return
 
-    to_screen('Updating to version ' + version_id + ' ...')
+    err = is_non_updateable()
-    version = versions_info['versions'][version_id]
+    if err:
-
+        return report_error(err, True)
-    print_notes(to_screen, versions_info['versions'])
 
     # 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])
+    ydl.to_screen('Current Build Hash %s' % calc_sha256sum(filename))
+    ydl.to_screen('Updating to version %s ...' % version_id)
+
+    version_labels = {
+        'zip_3': '',
+        'py2exe_32': '.exe',
+        'py2exe_64': '.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'] == 'youtube-dl%s' % label), {})
+
+    def get_sha256sum(bin_or_exe, version):
+        filename = 'youtube-dl%s' % 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')
+        if not urlh:
+            return None
+        hash_data = ydl._opener.open(urlh).read().decode('utf-8')
+        return dict(ln.split()[::-1] for ln in hash_data.splitlines()).get(filename)
 
     if not os.access(filename, os.W_OK):
-        to_screen('ERROR: no write permissions on %s' % filename)
+        return report_permission_error(filename)
-        return
 
-    # Py2EXE
+    # PyInstaller
-    if hasattr(sys, 'frozen'):
+    variant = detect_variant()
-        exe = filename
+    if variant in ('win_exe', 'py2exe'):
-        directory = os.path.dirname(exe)
+        directory = os.path.dirname(filename)
         if not os.access(directory, os.W_OK):
-            to_screen('ERROR: no write permissions on %s' % directory)
+            return report_permission_error(directory)
-            return
+        try:
+            if os.path.exists(filename + '.old'):
+                os.remove(filename + '.old')
+        except (IOError, OSError):
+            return report_unable('remove the old version')
 
         try:
-            urlh = opener.open(version['exe'][0])
+            arch = platform.architecture()[0][:2]
+            url = get_bin_info(variant, arch).get('browser_download_url')
+            if not url:
+                return report_network_error('fetch updates')
+            urlh = ydl._opener.open(url)
             newcontent = urlh.read()
             urlh.close()
         except (IOError, OSError):
-            if verbose:
+            return report_network_error('download latest version')
-                to_screen(encode_compat_str(traceback.format_exc()))
-            to_screen('ERROR: unable to download latest version')
-            return
-
-        newcontent_hash = hashlib.sha256(newcontent).hexdigest()
-        if newcontent_hash != version['exe'][1]:
-            to_screen('ERROR: the downloaded file hash does not match. Aborting.')
-            return
 
         try:
-            with open(exe + '.new', 'wb') as outf:
+            with open(filename + '.new', 'wb') as outf:
                 outf.write(newcontent)
         except (IOError, OSError):
-            if verbose:
+            return report_permission_error('%s.new' % filename)
-                to_screen(encode_compat_str(traceback.format_exc()))
+
-            to_screen('ERROR: unable to write the new version')
+        expected_sum = get_sha256sum(variant, arch)
-            return
+        if not expected_sum:
+            ydl.report_warning('no hash information found for the release')
+        elif calc_sha256sum(filename + '.new') != expected_sum:
+            report_network_error('verify the new executable')
+            try:
+                os.remove(filename + '.new')
+            except OSError:
+                return report_unable('remove corrupt download')
 
         try:
-            bat = os.path.join(directory, 'youtube-dl-updater.bat')
+            os.rename(filename, filename + '.old')
-            with open(bat, 'w') as batfile:
-                batfile.write('''
-@echo off
-echo Waiting for file handle to be closed ...
-ping 127.0.0.1 -n 5 -w 1000 > NUL
-move /Y "%s.new" "%s" > NUL
-echo Updated youtube-dl to version %s.
-start /b "" cmd /c del "%%~f0"&exit /b"
-                \n''' % (exe, exe, version_id))
-
-            subprocess.Popen([bat])  # Continues to run in the background
-            return  # Do not show premature success messages
         except (IOError, OSError):
-            if verbose:
+            return report_unable('move current version')
-                to_screen(encode_compat_str(traceback.format_exc()))
-            to_screen('ERROR: unable to overwrite current version')
-            return
-
-    # Zip unix package
-    elif isinstance(globals().get('__loader__'), zipimporter):
         try:
-            urlh = opener.open(version['bin'][0])
+            os.rename(filename + '.new', filename)
+        except (IOError, OSError):
+            report_unable('overwrite current version')
+            os.rename(filename + '.old', filename)
+            return
+        try:
+            # Continues to run in the background
+            subprocess.Popen(
+                'ping 127.0.0.1 -n 5 -w 1000 & del /F "%s.old"' % filename,
+                shell=True, stdout=subprocess.DEVNULL, stderr=subprocess.DEVNULL)
+            ydl.to_screen('Updated youtube-dl to version %s' % version_id)
+            return True  # Exit app
+        except OSError:
+            report_unable('delete the old version')
+
+    elif variant in ('zip', 'mac_exe'):
+        pack_type = '3' if variant == 'zip' else '64'
+        try:
+            url = get_bin_info(variant, pack_type).get('browser_download_url')
+            if not url:
+                return report_network_error('fetch updates')
+            urlh = ydl._opener.open(url)
             newcontent = urlh.read()
             urlh.close()
         except (IOError, OSError):
-            if verbose:
+            return report_network_error('download the latest version')
-                to_screen(encode_compat_str(traceback.format_exc()))
-            to_screen('ERROR: unable to download latest version')
-            return
 
-        newcontent_hash = hashlib.sha256(newcontent).hexdigest()
+        expected_sum = get_sha256sum(variant, pack_type)
-        if newcontent_hash != version['bin'][1]:
+        if not expected_sum:
-            to_screen('ERROR: the downloaded file hash does not match. Aborting.')
+            ydl.report_warning('no hash information found for the release')
-            return
+        elif hashlib.sha256(newcontent).hexdigest() != expected_sum:
+            return report_network_error('verify the new package')
 
         try:
             with open(filename, 'wb') as outf:
                 outf.write(newcontent)
         except (IOError, OSError):
-            if verbose:
+            return report_unable('overwrite current version')
-                to_screen(encode_compat_str(traceback.format_exc()))
-            to_screen('ERROR: unable to overwrite current version')
-            return
 
-    to_screen('Updated youtube-dl. Restart youtube-dl to use the new version.')
+        ydl.to_screen('Updated youtube-dl to version %s; Restart youtube-dl to use the new version' % version_id)
+        return
+
+    assert False, ('Unhandled variant: %s' % variant)
 
 
-def get_notes(versions, fromVersion):
+# Deprecated
-    notes = []
+def update_self(to_screen, verbose, opener):
-    for v, vdata in sorted(versions.items()):
-        if v > fromVersion:
-            notes.extend(vdata.get('notes', []))
-    return notes
 
+    printfn = to_screen
 
-def print_notes(to_screen, versions, fromVersion=__version__):
+    class FakeYDL():
-    notes = get_notes(versions, fromVersion)
+        _opener = opener
-    if notes:
+        to_screen = printfn
-        to_screen('PLEASE NOTE:')
+
-        for note in notes:
+        @staticmethod
-            to_screen(note)
+        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())