Clean up skin listing (#100)

Supersedes the 'fsep' setting by automatically detecting
the texture name in both, the skin list and the updater
scripts.
New, automatically fetched skins will now always use the
'.' delimiter to avoid player name issues.
In case of ambiguous texture names, a warning is logged.

updater/update_skins.py

@@ -1,9 +1,4 @@
-import sys, requests, base64
-
-# filename seperator to use, either default "-" or ".". see skinsdb/textures/readme.txt
-#fsep = "_"
-fsep = "."
-
+import os.path, sys, requests, base64
 
 
 print("Downloading skins from skinsdb.terraqueststudio.net ...")
@@ -22,21 +17,27 @@ print("Writing skins")
 for json in data["skins"]:
     id = str(json["id"])
 
+    name = "character." + id
+    if True:
+        legacy_name = "character_" + id
+        if os.path.exists("../textures/" + legacy_name + ".png"):
+            name = legacy_name
+
+
     # Texture file
     raw_data = base64.b64decode(json["img"])
-    file = open("../textures/character" + fsep + id + ".png", "wb")
+    file = open("../textures/" + name + ".png", "wb")
     file.write(bytearray(raw_data))
     file.close()
 
     # Meta file
-    name = str(json["name"])
-    author = str(json["author"])
-    license = str(json["license"])
-    file = open("../meta/character_" + id + ".txt", "w")
-    file.write(name + "\n" + author + "\n" + license + "\n")
+    meta_name = str(json["name"])
+    meta_author = str(json["author"])
+    meta_license = str(json["license"])
+    file = open("../meta/" + name + ".txt", "w")
+    file.write(meta_name + "\n" + meta_author + "\n" + meta_license + "\n")
     file.close()
-    print("Added #%s Name: %s Author: %s License: %s" % (id, name, author, license))
+    print("Added #%s Name: %s Author: %s License: %s" % (id, meta_name, meta_author, meta_license))
     count += 1
 
-
 print("Fetched " + str(count) + " skins!")