Added --thread

With --thread a signle thread ID or thread URL can be entered.
If thread is a URL, it will download it.
If thread is an ID, a category must also be set.

4grab.py

@@ -25,6 +25,7 @@ import sys
 import config
 import download
 
+base_url = "http://boards.4chan.org/"
 parser = optparse.OptionParser()
 
 parser.set_usage(
@@ -36,6 +37,7 @@ This is free software, and you are welcome to redistribute it
 under certain conditions.""")
 parser.add_option("-e", nargs=2, dest="confval", metavar="CONF VALUE", help="Set configuration option CONF to be VALUE")
 parser.add_option("-c", "--category", dest="tempcat", metavar="CATEGORY", help="Set the category to CATEGORY only for this run")
+parser.add_option("-t", "--thread", dest="thread", metavar="THREAD", help="""Download only THREAD. If THREAD is only an ID, CATEGORY must also be set. Otherwise, no problem :-)""")
 
 (options, args) = parser.parse_args()
 
@@ -51,10 +53,21 @@ if options.confval:
     config.Configuration().set_option(options.confval[0], options.confval[1])
     config.Configuration().save()
     exit(0)
+elif options.thread:
+    if options.thread[:7] == "http://":
+        t = download.get_image_links("", [options.thread])
+    elif options.tempcat:
+        url = "%s%s/res/" % (base_url, options.tempcat)
+        t = download.get_image_links(url, [options.thread])
+    else:
+        print "if THREAD is not an absolute URL, CATEGORY must also be specified"
+        exit(1)
+    download.get_images(t)
+    exit(0)
 elif options.tempcat:
     config.Configuration().set_category(options.tempcat)
 
-base_url = "http://boards.4chan.org/%s/" % (config.Configuration().get_category())
+base_url = "%s%s/" % (base_url, config.Configuration().get_category())
 
 t = download.get_thread_links(base_url)
 t = download.get_image_links(base_url, t)

download.py

@@ -58,6 +58,8 @@ def get_thread_links(baseurl):
         else:
             "\rOpening of", url, "did not succeed, trying next one..."
         i += 1
+    
+    progress.complete()
     return myparser.get_hyperlinks()
 
 def get_image_links(baseurl, t = []):
@@ -87,6 +89,7 @@ def get_image_links(baseurl, t = []):
             print "\rOpening of", img_url, "did not succeed, trying next one..."
         i += 1
 
+    progress.complete()
     return mysubparser.get_hyperlinks()
 
 def get_images(t = []):
@@ -108,6 +111,8 @@ def get_images(t = []):
         else:
             print "\rNot downloading", link, "already downloaded"
         i += 1
+    
+    progress.complete()
 
 if __name__ == "__main__":
     # Get a file-like object for the 4chan.org w/imgboard

progressbar.py

@@ -30,15 +30,35 @@ class Progress():
 
         self.show_progress(0)
 
+    def __get_true_maxwidth(self, vallen, maxvallen):
+        return self.maxwidth - 4 - vallen - maxvallen
+
     def show_progress(self, value):
         str_value = str(value)
         str_maxvalue = str(self.maxvalue)
-        true_maxwidth = self.maxwidth - 4 - len(str_value) - len(str_maxvalue)
-        progress = int(round((true_maxwidth/float(self.maxvalue))*value))
+        #true_maxwidth = self.maxwidth - 4 - len(str_value) - len(str_maxvalue)
+        true_maxwidth = self.__get_true_maxwidth(len(str_value), len(str_maxvalue))
+        #print true_maxwidth, ":", self.maxvalue, ":", value # for debugging purposes
+        
+        if self.maxvalue == 0:
+            progress = true_maxwidth
+        else:
+            progress = int(round((true_maxwidth/float(self.maxvalue))*value))
+        
+        #self.fd.write("\r%s/%s [%s%s]" % (str_value, str_maxvalue, self.prog_char * progress, self.fill_char * (true_maxwidth - progress)))
+        #self.fd.flush()
+        self.__write_progress(str_value, str_maxvalue, progress, true_maxwidth)
+
+    def __write_progress(self, str_value, str_maxvalue, progress, true_maxwidth):
         self.fd.write("\r%s/%s [%s%s]" % (str_value, str_maxvalue, self.prog_char * progress, self.fill_char * (true_maxwidth - progress)))
         self.fd.flush()
-        if value == self.maxvalue:
-            self.fd.write("\n")
+            
+    def complete(self):
+        str_maxvalue = str(self.maxvalue)
+        vallen = len(str_maxvalue)
+        true_maxwidth = self.__get_true_maxwidth(vallen, vallen)
+        self.__write_progress(str_maxvalue, str_maxvalue, true_maxwidth, true_maxwidth)
+        self.fd.write("\n")
 
 if __name__ == "__main__":
     prog = Progress(200)