Simplify logger code(#1811)
[youtube-dl] / youtube_dl / YoutubeDL.py
index 6ea865bd9bb5544f792b4571b37972a9fd875645..d7e2417acf507e21a0b7644e11b220cc1c0c9e83 100644 (file)
@@ -5,6 +5,7 @@ from __future__ import absolute_import
 
 import errno
 import io
+import json
 import os
 import re
 import shutil
@@ -16,7 +17,31 @@ import traceback
 if os.name == 'nt':
     import ctypes
 
-from .utils import *
+from .utils import (
+    compat_http_client,
+    compat_print,
+    compat_str,
+    compat_urllib_error,
+    compat_urllib_request,
+    ContentTooShortError,
+    date_from_str,
+    DateRange,
+    determine_ext,
+    DownloadError,
+    encodeFilename,
+    ExtractorError,
+    locked_file,
+    MaxDownloadsReached,
+    PostProcessingError,
+    preferredencoding,
+    SameFileError,
+    sanitize_filename,
+    subtitles_filename,
+    takewhile_inclusive,
+    UnavailableVideoError,
+    write_json_file,
+    write_string,
+)
 from .extractor import get_info_extractor, gen_extractors
 from .FileDownloader import FileDownloader
 
@@ -60,6 +85,7 @@ class YoutubeDL(object):
     forcethumbnail:    Force printing thumbnail URL.
     forcedescription:  Force printing description.
     forcefilename:     Force printing final filename.
+    forcejson:         Force printing info_dict as JSON.
     simulate:          Do not download the video files.
     format:            Video format code.
     format_limit:      Highest quality format to try.
@@ -71,6 +97,7 @@ class YoutubeDL(object):
     playlistend:       Playlist item to end at.
     matchtitle:        Download only matching titles.
     rejecttitle:       Reject downloads for matching titles.
+    logger:            Log messages to a logging.Logger instance.
     logtostderr:       Log messages to stderr instead of stdout.
     writedescription:  Write the video description to a .description file
     writeinfojson:     Write the video description to a .info.json file
@@ -166,7 +193,9 @@ class YoutubeDL(object):
 
     def to_screen(self, message, skip_eol=False):
         """Print message to stdout if not in quiet mode."""
-        if not self.params.get('quiet', False):
+        if self.params.get('logger'):
+            self.params['logger'].debug(message)
+        elif not self.params.get('quiet', False):
             terminator = [u'\n', u''][skip_eol]
             output = message + terminator
             write_string(output, self._screen_file)
@@ -174,10 +203,13 @@ class YoutubeDL(object):
     def to_stderr(self, message):
         """Print message to stderr."""
         assert type(message) == type(u'')
-        output = message + u'\n'
-        if 'b' in getattr(self._screen_file, 'mode', '') or sys.version_info[0] < 3: # Python 2 lies about the mode of sys.stdout/sys.stderr
-            output = output.encode(preferredencoding())
-        sys.stderr.write(output)
+        if self.params.get('logger'):
+            self.params['logger'].error(message)
+        else:
+            output = message + u'\n'
+            if 'b' in getattr(self._screen_file, 'mode', '') or sys.version_info[0] < 3: # Python 2 lies about the mode of sys.stdout/sys.stderr
+                output = output.encode(preferredencoding())
+            sys.stderr.write(output)
 
     def to_console_title(self, message):
         if not self.params.get('consoletitle', False):
@@ -187,7 +219,28 @@ class YoutubeDL(object):
             # already of type unicode()
             ctypes.windll.kernel32.SetConsoleTitleW(ctypes.c_wchar_p(message))
         elif 'TERM' in os.environ:
-            self.to_screen('\033]0;%s\007' % message, skip_eol=True)
+            write_string(u'\033]0;%s\007' % message, self._screen_file)
+
+    def save_console_title(self):
+        if not self.params.get('consoletitle', False):
+            return
+        if 'TERM' in os.environ:
+            # Save the title on stack
+            write_string(u'\033[22;0t', self._screen_file)
+
+    def restore_console_title(self):
+        if not self.params.get('consoletitle', False):
+            return
+        if 'TERM' in os.environ:
+            # Restore the title from stack
+            write_string(u'\033[23;0t', self._screen_file)
+
+    def __enter__(self):
+        self.save_console_title()
+        return self
+
+    def __exit__(self, *args):
+        self.restore_console_title()
 
     def fixed_template(self):
         """Checks if the output template is fixed."""
@@ -267,7 +320,7 @@ class YoutubeDL(object):
         """Report file has already been fully downloaded."""
         try:
             self.to_screen(u'[download] %s has already been downloaded' % file_name)
-        except (UnicodeEncodeError) as err:
+        except UnicodeEncodeError:
             self.to_screen(u'[download] The file has already been downloaded')
 
     def increment_downloads(self):
@@ -308,15 +361,17 @@ class YoutubeDL(object):
     def _match_entry(self, info_dict):
         """ Returns None iff the file should be downloaded """
 
-        title = info_dict['title']
-        matchtitle = self.params.get('matchtitle', False)
-        if matchtitle:
-            if not re.search(matchtitle, title, re.IGNORECASE):
-                return u'[download] "' + title + '" title did not match pattern "' + matchtitle + '"'
-        rejecttitle = self.params.get('rejecttitle', False)
-        if rejecttitle:
-            if re.search(rejecttitle, title, re.IGNORECASE):
-                return u'"' + title + '" title matched reject pattern "' + rejecttitle + '"'
+        if 'title' in info_dict:
+            # This can happen when we're just evaluating the playlist
+            title = info_dict['title']
+            matchtitle = self.params.get('matchtitle', False)
+            if matchtitle:
+                if not re.search(matchtitle, title, re.IGNORECASE):
+                    return u'[download] "' + title + '" title did not match pattern "' + matchtitle + '"'
+            rejecttitle = self.params.get('rejecttitle', False)
+            if rejecttitle:
+                if re.search(rejecttitle, title, re.IGNORECASE):
+                    return u'"' + title + '" title matched reject pattern "' + rejecttitle + '"'
         date = info_dict.get('upload_date', None)
         if date is not None:
             dateRange = self.params.get('daterange', DateRange())
@@ -327,8 +382,8 @@ class YoutubeDL(object):
             if age_limit < info_dict.get('age_limit', 0):
                 return u'Skipping "' + title + '" because it is age restricted'
         if self.in_download_archive(info_dict):
-            return (u'%(title)s has already been recorded in archive'
-                    % info_dict)
+            return (u'%s has already been recorded in archive'
+                    % info_dict.get('title', info_dict.get('id', u'video')))
         return None
 
     @staticmethod
@@ -407,7 +462,7 @@ class YoutubeDL(object):
                                      ie_key=ie_result.get('ie_key'),
                                      extra_info=extra_info)
         elif result_type == 'playlist':
-            self.add_extra_info(ie_result, extra_info)
+
             # We process each entry in the playlist
             playlist = ie_result.get('title', None) or ie_result.get('id', None)
             self.to_screen(u'[download] Downloading playlist: %s' % playlist)
@@ -437,6 +492,12 @@ class YoutubeDL(object):
                     'webpage_url': ie_result['webpage_url'],
                     'extractor_key': ie_result['extractor_key'],
                 }
+
+                reason = self._match_entry(entry)
+                if reason is not None:
+                    self.to_screen(u'[download] ' + reason)
+                    continue
+
                 entry_result = self.process_ie_result(entry,
                                                       download=download,
                                                       extra_info=extra)
@@ -592,7 +653,7 @@ class YoutubeDL(object):
 
         # Forced printings
         if self.params.get('forcetitle', False):
-            compat_print(info_dict['title'])
+            compat_print(info_dict['fulltitle'])
         if self.params.get('forceid', False):
             compat_print(info_dict['id'])
         if self.params.get('forceurl', False):
@@ -606,6 +667,8 @@ class YoutubeDL(object):
             compat_print(filename)
         if self.params.get('forceformat', False):
             compat_print(info_dict['format'])
+        if self.params.get('forcejson', False):
+            compat_print(json.dumps(info_dict))
 
         # Do nothing else if in simulate mode
         if self.params.get('simulate', False):
@@ -668,7 +731,7 @@ class YoutubeDL(object):
                     return
 
         if self.params.get('writeinfojson', False):
-            infofn = filename + u'.info.json'
+            infofn = os.path.splitext(filename)[0] + u'.info.json'
             self.report_writeinfojson(infofn)
             try:
                 json_info_dict = dict((k, v) for k, v in info_dict.items() if not k in ['urlhandle'])
@@ -761,7 +824,16 @@ class YoutubeDL(object):
         fn = self.params.get('download_archive')
         if fn is None:
             return False
-        vid_id = info_dict['extractor'] + u' ' + info_dict['id']
+        extractor = info_dict.get('extractor_id')
+        if extractor is None:
+            if 'id' in info_dict:
+                extractor = info_dict.get('ie_key')  # key in a playlist
+        if extractor is None:
+            return False  # Incomplete video information
+        # Future-proof against any change in case
+        # and backwards compatibility with prior versions
+        extractor = extractor.lower()
+        vid_id = extractor + u' ' + info_dict['id']
         try:
             with locked_file(fn, 'r', encoding='utf-8') as archive_file:
                 for line in archive_file: