moved generated into extra dir, prepare for more embedded files

extra_script.py

@@ -2,10 +2,27 @@ print("running extra...")
 import gzip
 import shutil
 import os
+import sys
+import inspect
+GEN_DIR='generated'
 FILES=['web/index.html']
 
+def outPath():
+    #see: https://stackoverflow.com/questions/16771894/python-nameerror-global-name-file-is-not-defined
+    return os.path.join(os.path.dirname(inspect.getfile(lambda: None)),GEN_DIR)
+
+def checkDir():
+    dn=outPath()
+    if not os.path.exists(dn):
+        os.makedirs(dn)
+    if not os.path.isdir(dn):
+        print("unable to create %s"%dn)
+        return False
+    return True    
+
 def compressFile(inFile):
-    outfile=inFile+".gz"
+    outfile=os.path.basename(inFile)+".gz"
+    outfile=os.path.join(outPath(),outfile)
     if os.path.exists(outfile):
         otime=os.path.getmtime(outfile)
         itime=os.path.getmtime(inFile)
@@ -16,6 +33,8 @@ def compressFile(inFile):
         with gzip.open(outfile, 'wb') as f_out:
             shutil.copyfileobj(f_in, f_out)
 
+if not checkDir():
+    sys.exit(1)
 for f in FILES:
     print("compressing %s"%f)
     compressFile(f)