Disconnected the property creation function

The function used to create a new property has been changed to be a callback function, so that later on a UI might use a dialog.

4grab.py

@@ -26,9 +26,18 @@ import config
 import download
 import progressbar
 
+def raw_input_with_default(default, prompt):
+    inp = raw_input("%s (default=%s): " % (prompt, default))
+    if inp == "":
+        return default
+    return inp
+
 base_url = "http://boards.4chan.org/"
 parser = optparse.OptionParser()
 downloader = download.Downloader(progressbar.Progress)
+conf = config.Configuration()
+
+conf.set_optioncreator(raw_input_with_default)
 
 def walk_with_wizard(baseurl):
     wzrd_msg = "Pilates! *SHAZAM* Here they come!"
@@ -54,8 +63,8 @@ def walk_with_wizard(baseurl):
                                            [thread])
     else:
         inp = raw_input("Which category would you like to download? ")
-        config.Configuration().set_category(inp)
+        conf.set_category(inp)
-        baseurl = "%s%s/" % (baseurl, config.Configuration().get_category())
+        baseurl = "%s%s/" % (baseurl, conf.get_category())
 
         print wzrd_msg
         t = downloader.get_thread_links(baseurl)
@@ -109,15 +118,15 @@ if options.wizard and (options.tempcat
     exit(1)
 
 if options.confval:
-    if not config.Configuration().option_exists(options.confval[0]):
+    if not conf.option_exists(options.confval[0]):
         print ("%s: error: %s is not a "
                "valid configuration option") % (sys.argv[0],
                                         options.confval[0])
         exit(1)
     print "Setting", options.confval[0], "to", options.confval[1]
-    config.Configuration().set_option(options.confval[0],
+    conf.set_option(options.confval[0],
                                       options.confval[1])
-    config.Configuration().save()
+    conf.save()
     exit(0)
 
 elif options.wizard:
@@ -150,9 +159,9 @@ elif options.thread:
     exit(0)
 
 elif options.tempcat:
-    config.Configuration().set_category(options.tempcat)
+    conf.set_category(options.tempcat)
 
-base_url = "%s%s/" % (base_url, config.Configuration().get_category())
+base_url = "%s%s/" % (base_url, conf.get_category())
 
 try:
     t = downloader.get_thread_links(base_url)

config.py

@@ -24,36 +24,64 @@ import sys
 homedir = os.getenv("HOME")
 if homedir is None:
     homedir = os.path.dirname(sys.argv[0])
-
+    
 class _Configuration(object):
     def __init__(self):
         self.filename = os.path.join(os.path.join(homedir, ".4grab"), "config.cfg")
         self.configparser = ConfigParser.RawConfigParser()
-        if not os.path.exists(self.filename):
-            self.create_new()
-        else:
-            self.configparser.read(self.filename)
-
-    def create_new(self):
-        self.configparser.add_section("settings")
-        self.set_category(self.raw_input_with_default("w", "Please enter which category you would like to download from: "))
         
-        self.configparser.add_section("locations")
+        self.check()
-        self.configparser.set("locations", "download", self.raw_input_with_default(os.path.join(homedir, "Pictures"), "Please enter where you would like the downloads to go: "))
+        
+        self.configparser.read(self.filename)
 
-        self.save()
+    def set_optioncreator(self, optioncreator):
+        self.optioncreator = optioncreator
 
-    def raw_input_with_default(self, default, prompt):
+    def check(self):
-        inp = raw_input("%s (default=%s): " % (prompt, default))
+        changed = False
-        if inp == "":
+        # read if it exists
-            return default
+        if os.path.exists(self.filename):
-        return inp
+                self.configparser.read(self.filename)
+        # locations
+        if not self.configparser.has_section("locations"):
+            self.configparser.add_section("locations")
+        # locations/download_base
+        if not self.configparser.has_option("locations", "download_base"):
+            self.create_option("locations",
+                               "download_base",
+                               os.path.join(homedir,
+                                            "Pictures"),
+                               "Please enter where "
+                               "you would like the "
+                               "downloads to go: ")
+            changed = True
+        # settings
+        if not self.configparser.has_section("settings"):
+            self.configparser.add_section("settings")
+        # settings/categories
+        if not self.configparser.has_option("settings", "categories"):
+            self.create_option("settings",
+                               "categories",
+                               "w",
+                               "Please enter which "
+                               "category you would like "
+                               "to download from: ")
+            changed = True
+
+        if changed:
+            self.save()
+
+    def create_option(self, section, name, default, message):
+        self.configparser.set(section,
+                              name,
+                              self.optioncreator(default,
+                                                 message))
 
     def get_download_location(self):
-        return self.configparser.get("locations", "download")
+        return self.configparser.get("locations", "download_base")
 
     def get_category(self):
-        return self.configparser.get("settings", "category")
+        return self.configparser.get("settings", "categories")
 
     def set_category(self, value):
         self.configparser.set("settings", "category", value)
@@ -81,7 +109,7 @@ class _Configuration(object):
     def save(self):
         dirname = os.path.dirname(self.filename)
         if not os.path.exists(dirname):
-            os.mkdir(dirname)
+            os.makedirs(dirname)
         configfile = open(self.filename, "w")
         self.configparser.write(configfile)
 

download.py

@@ -25,7 +25,8 @@ import htmlparser
 #import progressbar
 import config
 
-savedir = config.Configuration().get_download_location()
+conf = config.Configuration()
+savedir = conf.get_download_location()
 if not os.path.exists(savedir):
     os.makedirs(savedir)
 
@@ -127,7 +128,7 @@ class Downloader(object):
 
 if __name__ == "__main__":
     # Get a file-like object for the 4chan.org w/imgboard
-    base_url = "http://boards.4chan.org/" + config.Configuration().get_category() + "/"
+    base_url = "http://boards.4chan.org/" + conf.get_category() + "/"
  
     # Get the hyperlinks.
     t = get_thread_links(base_url)