X-Git-Url: https://git.rapsys.eu/youtubedl/blobdiff_plain/46113edab215c2211a604c06245c16d5d4e57dcf..382a868cee069f08aacf0b89c9d689ec420d6b2c:/youtube_dl/downloader/common.py diff --git a/youtube_dl/downloader/common.py b/youtube_dl/downloader/common.py index f85f0c9..7bb3a94 100644 --- a/youtube_dl/downloader/common.py +++ b/youtube_dl/downloader/common.py @@ -1,10 +1,12 @@ +from __future__ import unicode_literals + import os import re import sys import time +from ..compat import compat_str from ..utils import ( - compat_str, encodeFilename, format_bytes, timeconvert, @@ -23,21 +25,23 @@ class FileDownloader(object): Available options: - verbose: Print additional info to stdout. - quiet: Do not print messages to stdout. - ratelimit: Download speed limit, in bytes/sec. - retries: Number of times to retry for HTTP error 5xx - buffersize: Size of download buffer in bytes. - noresizebuffer: Do not automatically resize the download buffer. - continuedl: Try to continue downloads if possible. - noprogress: Do not print the progress bar. - logtostderr: Log messages to stderr instead of stdout. - consoletitle: Display progress in console window's titlebar. - nopart: Do not use temporary .part files. - updatetime: Use the Last-modified header to set output file timestamps. - test: Download only first bytes to test the downloader. - min_filesize: Skip files smaller than this size - max_filesize: Skip files larger than this size + verbose: Print additional info to stdout. + quiet: Do not print messages to stdout. + ratelimit: Download speed limit, in bytes/sec. + retries: Number of times to retry for HTTP error 5xx + buffersize: Size of download buffer in bytes. + noresizebuffer: Do not automatically resize the download buffer. + continuedl: Try to continue downloads if possible. + noprogress: Do not print the progress bar. + logtostderr: Log messages to stderr instead of stdout. + consoletitle: Display progress in console window's titlebar. + nopart: Do not use temporary .part files. + updatetime: Use the Last-modified header to set output file timestamps. + test: Download only first bytes to test the downloader. + min_filesize: Skip files smaller than this size + max_filesize: Skip files larger than this size + xattr_set_filesize: Set ytdl.filesize user xattribute with expected size. + (experimenatal) Subclasses of this one must re-define the real_download method. """ @@ -78,8 +82,10 @@ class FileDownloader(object): def calc_eta(start, now, total, current): if total is None: return None + if now is None: + now = time.time() dif = now - start - if current == 0 or dif < 0.001: # One millisecond + if current == 0 or dif < 0.001: # One millisecond return None rate = float(current) / dif return int((float(total) - float(current)) / rate) @@ -93,7 +99,7 @@ class FileDownloader(object): @staticmethod def calc_speed(start, now, bytes): dif = now - start - if bytes == 0 or dif < 0.001: # One millisecond + if bytes == 0 or dif < 0.001: # One millisecond return None return float(bytes) / dif @@ -106,7 +112,7 @@ class FileDownloader(object): @staticmethod def best_block_size(elapsed_time, bytes): new_min = max(bytes / 2.0, 1.0) - new_max = min(max(bytes * 2.0, 1.0), 4194304) # Do not surpass 4 MB + new_max = min(max(bytes * 2.0, 1.0), 4194304) # Do not surpass 4 MB if elapsed_time < 0.001: return int(new_max) rate = bytes / elapsed_time @@ -144,29 +150,30 @@ class FileDownloader(object): def report_error(self, *args, **kargs): self.ydl.report_error(*args, **kargs) - def slow_down(self, start_time, byte_counter): + def slow_down(self, start_time, now, byte_counter): """Sleep if the download speed is over the rate limit.""" rate_limit = self.params.get('ratelimit', None) if rate_limit is None or byte_counter == 0: return - now = time.time() + if now is None: + now = time.time() elapsed = now - start_time if elapsed <= 0.0: return speed = float(byte_counter) / elapsed if speed > rate_limit: - time.sleep((byte_counter - rate_limit * (now - start_time)) / rate_limit) + time.sleep(max((byte_counter // rate_limit) - elapsed, 0)) def temp_name(self, filename): """Returns a temporary filename for the given filename.""" - if self.params.get('nopart', False) or filename == u'-' or \ + if self.params.get('nopart', False) or filename == '-' or \ (os.path.exists(encodeFilename(filename)) and not os.path.isfile(encodeFilename(filename))): return filename - return filename + u'.part' + return filename + '.part' def undo_temp_name(self, filename): - if filename.endswith(u'.part'): - return filename[:-len(u'.part')] + if filename.endswith('.part'): + return filename[:-len('.part')] return filename def try_rename(self, old_filename, new_filename): @@ -175,7 +182,7 @@ class FileDownloader(object): return os.rename(encodeFilename(old_filename), encodeFilename(new_filename)) except (IOError, OSError) as err: - self.report_error(u'unable to rename file: %s' % compat_str(err)) + self.report_error('unable to rename file: %s' % compat_str(err)) def try_utime(self, filename, last_modified_hdr): """Try to set the last-modified time of the given file.""" @@ -200,10 +207,10 @@ class FileDownloader(object): def report_destination(self, filename): """Report destination filename.""" - self.to_screen(u'[download] Destination: ' + filename) + self.to_screen('[download] Destination: ' + filename) def _report_progress_status(self, msg, is_last_line=False): - fullmsg = u'[download] ' + msg + fullmsg = '[download] ' + msg if self.params.get('progress_with_newline', False): self.to_screen(fullmsg) else: @@ -211,13 +218,13 @@ class FileDownloader(object): prev_len = getattr(self, '_report_progress_prev_line_length', 0) if prev_len > len(fullmsg): - fullmsg += u' ' * (prev_len - len(fullmsg)) + fullmsg += ' ' * (prev_len - len(fullmsg)) self._report_progress_prev_line_length = len(fullmsg) - clear_line = u'\r' + clear_line = '\r' else: - clear_line = (u'\r\x1b[K' if sys.stderr.isatty() else u'\r') + clear_line = ('\r\x1b[K' if sys.stderr.isatty() else '\r') self.to_screen(clear_line + fullmsg, skip_eol=not is_last_line) - self.to_console_title(u'youtube-dl ' + msg) + self.to_console_title('youtube-dl ' + msg) def report_progress(self, percent, data_len_str, speed, eta): """Report download progress.""" @@ -233,7 +240,7 @@ class FileDownloader(object): percent_str = 'Unknown %' speed_str = self.format_speed(speed) - msg = (u'%s of %s at %s ETA %s' % + msg = ('%s of %s at %s ETA %s' % (percent_str, data_len_str, speed_str, eta_str)) self._report_progress_status(msg) @@ -243,44 +250,56 @@ class FileDownloader(object): downloaded_str = format_bytes(downloaded_data_len) speed_str = self.format_speed(speed) elapsed_str = FileDownloader.format_seconds(elapsed) - msg = u'%s at %s (%s)' % (downloaded_str, speed_str, elapsed_str) + msg = '%s at %s (%s)' % (downloaded_str, speed_str, elapsed_str) self._report_progress_status(msg) def report_finish(self, data_len_str, tot_time): """Report download finished.""" if self.params.get('noprogress', False): - self.to_screen(u'[download] Download completed') + self.to_screen('[download] Download completed') else: self._report_progress_status( - (u'100%% of %s in %s' % + ('100%% of %s in %s' % (data_len_str, self.format_seconds(tot_time))), is_last_line=True) def report_resuming_byte(self, resume_len): """Report attempt to resume at given byte.""" - self.to_screen(u'[download] Resuming download at byte %s' % resume_len) + self.to_screen('[download] Resuming download at byte %s' % resume_len) def report_retry(self, count, retries): """Report retry in case of HTTP error 5xx""" - self.to_screen(u'[download] Got server HTTP error. Retrying (attempt %d of %d)...' % (count, retries)) + self.to_screen('[download] Got server HTTP error. Retrying (attempt %d of %d)...' % (count, retries)) def report_file_already_downloaded(self, file_name): """Report file has already been fully downloaded.""" try: - self.to_screen(u'[download] %s has already been downloaded' % file_name) + self.to_screen('[download] %s has already been downloaded' % file_name) except UnicodeEncodeError: - self.to_screen(u'[download] The file has already been downloaded') + self.to_screen('[download] The file has already been downloaded') def report_unable_to_resume(self): """Report it was impossible to resume download.""" - self.to_screen(u'[download] Unable to resume') + self.to_screen('[download] Unable to resume') def download(self, filename, info_dict): """Download to a filename using the info from info_dict Return True on success and False otherwise """ + + nooverwrites_and_exists = ( + self.params.get('nooverwrites', False) + and os.path.exists(encodeFilename(filename)) + ) + + continuedl_and_exists = ( + self.params.get('continuedl', False) + and os.path.isfile(encodeFilename(filename)) + and not self.params.get('nopart', False) + ) + # Check file already present - if self.params.get('continuedl', False) and os.path.isfile(encodeFilename(filename)) and not self.params.get('nopart', False): + if filename != '-' and nooverwrites_and_exists or continuedl_and_exists: self.report_file_already_downloaded(filename) self._hook_progress({ 'filename': filename, @@ -289,30 +308,43 @@ class FileDownloader(object): }) return True + sleep_interval = self.params.get('sleep_interval') + if sleep_interval: + self.to_screen('[download] Sleeping %s seconds...' % sleep_interval) + time.sleep(sleep_interval) + return self.real_download(filename, info_dict) def real_download(self, filename, info_dict): """Real download process. Redefine in subclasses.""" - raise NotImplementedError(u'This method must be implemented by subclasses') + raise NotImplementedError('This method must be implemented by subclasses') def _hook_progress(self, status): for ph in self._progress_hooks: ph(status) def add_progress_hook(self, ph): - """ ph gets called on download progress, with a dictionary with the entries - * filename: The final filename - * status: One of "downloading" and "finished" + # See YoutubeDl.py (search for progress_hooks) for a description of + # this interface + self._progress_hooks.append(ph) - It can also have some of the following entries: + def _debug_cmd(self, args, subprocess_encoding, exe=None): + if not self.params.get('verbose', False): + return - * downloaded_bytes: Bytes on disks - * total_bytes: Total bytes, None if unknown - * tmpfilename: The filename we're currently writing to - * eta: The estimated time in seconds, None if unknown - * speed: The download speed in bytes/second, None if unknown + if exe is None: + exe = os.path.basename(args[0]) - Hooks are guaranteed to be called at least once (with status "finished") - if the download is successful. - """ - self._progress_hooks.append(ph) + if subprocess_encoding: + str_args = [ + a.decode(subprocess_encoding) if isinstance(a, bytes) else a + for a in args] + else: + str_args = args + try: + import pipes + shell_quote = lambda args: ' '.join(map(pipes.quote, str_args)) + except ImportError: + shell_quote = repr + self.to_screen('[debug] %s command line: %s' % ( + exe, shell_quote(str_args)))