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+#!/bin/env python3
+# Filename: scrub.py
+# Location: Various
+# Author: bgstack15@gmail.com
+# Startdate: 2016-09-28
+# Title: Script that Simultaneously Copies and Scrubs a Directory
+# Purpose: Prepare projects for publication by removing private information like usernames and hostnames
+# Package: Various
+# History:
+#    2016-10-03 working on batch rename files
+#    2016-10-20 added not ".tgz" in source.name
+# Usage:
+#    Store this file with any package that gets published. Adjust scrub.txt in local directory.
+#  # First line: source directory      Second line: target directory. WILL BE OVERWRITTEN!
+#  /etc/ansible
+#  /home/bjones/ansible.clean
+#  # Rest of the lines are "OLD WORD" "NEW WORD"
+#  bjones bgstack15
+#  rsmith rmstack15
+# Reference:
+#    http://stackoverflow.com/questions/79968/split-a-string-by-spaces-preserving-quoted-substrings-in-python/524796#524796
+#    http://stackoverflow.com/questions/6706953/python-using-subprocess-to-call-sed#6707003
+#    http://stackoverflow.com/questions/6584871/remove-last-character-if-its-a-backslash/6584893#6584893
+#    http://stackoverflow.com/questions/2212643/python-recursive-folder-read/2212728#2212728
+#    parallel lists: http://stackoverflow.com/questions/1663807/how-can-i-iterate-through-two-lists-in-parallel-in-python
+#    file renames http://stackoverflow.com/questions/225735/batch-renaming-of-files-in-a-directory/7917798#7917798
+# Improve:
+#    Add option to specify scrub file
+#    Add exclude option to scrub file, such as .git and so on
+#    Accept CLI options like source, destination, even exclusions?
+#    Add flag for performing file renames as well, or file renames only
+import re, shlex, os, sys, shutil
+from pathlib import Path
+
+# scrubpy version
+scrubpyversion = "2016-10-20a"
+
+# Define functions
+
+def removeComments(string):
+   #string = re.sub(re.compile("/\*.*?\*/",re.DOTALL ) ,"", string)
+   #string = re.sub(re.compile("//.*?\n" ) ,"" ,string)
+   pattern = r"(\".*?\"|\'.*?\')|(/\*.*?\*/|(//|#)[^\r\n]*$)"
+   regex = re.compile(pattern, re.MULTILINE|re.DOTALL)
+   def _replacer(match):
+      if match.group(2) is not None:
+         return ""
+      else:
+         return match.group(1)
+   return regex.sub(_replacer, string)
+
+# Main code
+stringfile = open('scrub.txt','r')
+count=0
+thisdir=""
+newdir=""
+oldstrings=[]
+newstrings=[]
+
+while True:
+   x = stringfile.readline().rstrip()
+   count += 1
+   if not x: break
+   x = removeComments(x)
+   #print("x=" + x)
+   y = shlex.split (x)
+   if len(y) >= 1:
+      if thisdir == "":
+         thisdir = y[0]
+      elif newdir == "":
+         newdir = y[0]
+   if len(y) >= 2: 
+      #print("y[0]=" + y[0] + "\t and y[1]=" + y[1])
+      oldstrings.append(y[0])
+      newstrings.append(y[1])
+
+# After the file is done
+stringfile.close()
+#newdir = thisdir.rstrip('\/') + ".scrubbed/"
+
+if False:
+   print("\nthisdir=" + thisdir)
+   print("newdir=" + newdir + '\n')
+   print("oldstrings are:")
+   print(oldstrings)
+   print("newstrings are:")
+   print(newstrings)
+
+# Clean scrubbed directory
+try:
+   shutil.rmtree(newdir)
+except:
+   foo=1
+
+shutil.copytree(thisdir,newdir,symlinks=True)
+
+# Execute substitutions
+for rootfolder, subdirs, files in os.walk(thisdir):
+   for filename in files:
+      sourcepath = os.path.join(rootfolder, filename)
+      with open( sourcepath, "r" ) as source:
+         if not ".swp" in source.name and not ".git" in source.name and not ".tgz" in source.name:
+            destdir = rootfolder.replace(thisdir.rstrip('\/'),newdir.rstrip('\/'))
+            destfile = os.path.join(destdir, filename)
+            #print("sourcefile=" + source.name)
+            #print("destfile=" + destfile + '\n')
+            with open( destfile, "w") as target:
+               data = source.read()
+               for oldword, newword in zip(oldstrings, newstrings):
+                  data = data.replace(oldword,newword)
+               changed = data
+               target.write(changed)
+
+# Execute file renames
+# Used "file renames" reference, as well as the structure of directory traversal used earlier, which was from a different source.
+for rootfolder, subdirs, files in os.walk(newdir):
+   for filename in files:
+      oldpath = os.path.join(rootfolder, filename)
+      for oldword, newword in zip(oldstrings, newstrings):
+         if oldword in oldpath:
+            #print("oldword=" + oldword + "\toldpath=" + oldpath)
+            os.rename(oldpath, oldpath.replace(oldword,newword))