Initial commit

makepak.py

@@ -0,0 +1,43 @@
+import sys
+import struct
+import os
+ 
+#dummy class for stuffing the file headers into
+class FileEntry:
+    pass
+ 
+#arguments are source directory, then target filename e.g. "pak1.pak"
+rootdir = sys.argv[1]
+pakfilename = sys.argv[2]
+ 
+pakfile = open(pakfilename,"wb")
+ 
+#write a dummy header to start with
+pakfile.write(struct.Struct("<4s2l").pack(b"PACK",0,0))
+ 
+#walk the directory recursively, add the files and record the file entries
+offset = 12
+fileentries = []
+for root, subFolders, files in os.walk(rootdir):
+    for file in files:
+        entry = FileEntry()
+        impfilename = os.path.join(root,file)  
+        entry.filename = os.path.relpath(impfilename,rootdir).replace("\\","/")       
+        with open(impfilename, "rb") as importfile:
+            pakfile.write(importfile.read())
+            entry.offset = offset
+            entry.length = importfile.tell()
+            offset = offset + entry.length
+        fileentries.append(entry)
+tablesize = 0
+ 
+#after all the file data, write the list of entries
+for entry in fileentries:
+    pakfile.write(struct.Struct("<56s").pack(entry.filename.encode("ascii")))
+    pakfile.write(struct.Struct("<l").pack(entry.offset))
+    pakfile.write(struct.Struct("<l").pack(entry.length))
+    tablesize = tablesize + 64
+ 
+#return to the header and write the values correctly
+pakfile.seek(0)
+pakfile.write(struct.Struct("<4s2l").pack(b"PACK",offset,tablesize))