Convert direct uses of .to_stdout() into methods to ease inheritation

diff --git a/youtube-dl b/youtube-dl
index 2c1d1aa..b0b494e 100755 (executable)
--- a/youtube-dl
+++ b/youtube-dl
@@ -193,6 +193,19 @@ class FileDownloader(object):
                        raise DownloadError(message)
                return 1
 
+       def report_destination(self, filename):
+               """Report destination filename."""
+               self.to_stdout('[download] Destination: %s' % filename)
+       
+       def report_progress(self, percent_str, data_len_str, speed_str, eta_str):
+               """Report download progress."""
+               self.to_stdout('\r[download] %s of %s at %s ETA %s' %
+                               (percent_str, data_len_str, speed_str, eta_str), skip_eol=True)
+       
+       def report_finish(self):
+               """Report download finished."""
+               self.to_stdout('')
+
        def download(self, url_list):
                """Download a given list of URLs."""
                retcode = 0
@@ -228,7 +241,7 @@ class FileDownloader(object):
 
                                        try:
                                                filename = self._params['outtmpl'] % result
-                                               self.to_stdout('[download] Destination: %s' % filename)
+                                               self.report_destination(filename)
                                        except (ValueError, KeyError), err:
                                                retcode = self.trouble('ERROR: invalid output template: %s' % str(err))
                                                continue
@@ -266,12 +279,13 @@ class FileDownloader(object):
                block_size = 1024
                start = time.time()
                while True:
+                       # Progress message
                        percent_str = self.calc_percent(byte_counter, data_len)
                        eta_str = self.calc_eta(start, time.time(), data_len, byte_counter)
                        speed_str = self.calc_speed(start, time.time(), byte_counter)
-                       self.to_stdout('\r[download] %s of %s at %s ETA %s' %
-                                       (percent_str, data_len_str, speed_str, eta_str), skip_eol=True)
+                       self.report_progress(percent_str, data_len_str, speed_str, eta_str)
 
+                       # Download and write
                        before = time.time()
                        data_block = data.read(block_size)
                        after = time.time()
@@ -282,7 +296,7 @@ class FileDownloader(object):
                        stream.write(data_block)
                        block_size = self.best_block_size(after - before, data_block_len)
 
-               self.to_stdout('')
+               self.report_finish()
                if data_len is not None and str(byte_counter) != data_len:
                        raise ValueError('Content too short: %s/%s bytes' % (byte_counter, data_len))
 
@@ -362,6 +376,26 @@ class YoutubeIE(InfoExtractor):
        _AGE_URL = 'http://www.youtube.com/verify_age?next_url=/'
        _NETRC_MACHINE = 'youtube'
 
+       def report_login(self):
+               """Report attempt to log in."""
+               self.to_stdout('[youtube] Logging in')
+       
+       def report_age_confirmation(self):
+               """Report attempt to confirm age."""
+               self.to_stdout('[youtube] Confirming age')
+       
+       def report_webpage_download(self, video_id):
+               """Report attempt to download webpage."""
+               self.to_stdout('[youtube] %s: Downloading video webpage' % video_id)
+       
+       def report_information_extraction(self, video_id):
+               """Report attempt to extract video information."""
+               self.to_stdout('[youtube] %s: Extracting video information' % video_id)
+       
+       def report_video_url(self, video_id, video_real_url):
+               """Report extracted video URL."""
+               self.to_stdout('[youtube] %s: URL: %s' % (video_id, video_real_url))
+
        def _real_initialize(self):
                if self._downloader is None:
                        return
@@ -400,7 +434,7 @@ class YoutubeIE(InfoExtractor):
                                }
                request = urllib2.Request(self._LOGIN_URL, urllib.urlencode(login_form), std_headers)
                try:
-                       self.to_stdout('[youtube] Logging in')
+                       self.report_login()
                        login_results = urllib2.urlopen(request).read()
                        if re.search(r'(?i)<form[^>]* name="loginForm"', login_results) is not None:
                                self.to_stderr('WARNING: unable to log in: bad username or password')
@@ -416,7 +450,7 @@ class YoutubeIE(InfoExtractor):
                                }
                request = urllib2.Request(self._AGE_URL, urllib.urlencode(age_form), std_headers)
                try:
-                       self.to_stdout('[youtube] Confirming age')
+                       self.report_age_confirmation()
                        age_results = urllib2.urlopen(request).read()
                except (urllib2.URLError, httplib.HTTPException, socket.error), err:
                        self.to_stderr('ERROR: unable to confirm age: %s' % str(err))
@@ -445,12 +479,12 @@ class YoutubeIE(InfoExtractor):
                        normalized_url = '%s&fmt=%s' % (normalized_url, format_param)
                request = urllib2.Request(normalized_url, None, std_headers)
                try:
-                       self.to_stdout('[youtube] %s: Downloading video webpage' % video_id)
+                       self.report_webpage_download(video_id)
                        video_webpage = urllib2.urlopen(request).read()
                except (urllib2.URLError, httplib.HTTPException, socket.error), err:
                        self.to_stderr('ERROR: unable to download video webpage: %s' % str(err))
                        return [None]
-               self.to_stdout('[youtube] %s: Extracting video information' % video_id)
+               self.report_information_extraction(video_id)
                
                # "t" param
                mobj = re.search(r', "t": "([^"]+)"', video_webpage)
@@ -460,7 +494,7 @@ class YoutubeIE(InfoExtractor):
                video_real_url = 'http://www.youtube.com/get_video?video_id=%s&t=%s' % (video_id, mobj.group(1))
                if format_param is not None:
                        video_real_url = '%s&fmt=%s' % (video_real_url, format_param)
-               self.to_stdout('[youtube] %s: URL: %s' % (video_id, video_real_url))
+               self.report_video_url(video_id, video_real_url)
 
                # uploader
                mobj = re.search(r'More From: ([^<]*)<', video_webpage)