#!/usr/bin/env python

# Back up important files and directories in homedir.
# Copyright 2007, 2011 by Akkana Peck; share and enjoy under GPL.v2 # or later.

import sys, os, time
# Python can't get the hostname without the socket lib!
# And from bash, $HOST isn't defined like it is in tcsh.
import socket

backupto = "/home/YOURNAME/dotback/"

# List of what to save, both files and directories.
# This isn't my complete list, just a sample. You decide what you need.
backupfiles = [ \
  ".bashrc",
  ".bash_profile",
  ".emacs",
  ".Xdefaults",

  ".vim",
  ".emacs-lisp",
  ".config/openbox",
  ".gimp-2.6",

  # Skip logs and other big stuff from xchat:
  ".xchat2/colors.conf",
  ".xchat2/keybindings.conf",
  ".xchat2/servlist_.conf",
  ".xchat2/replace.conf",
  ".xchat2/sound.conf",
  ".xchat2/urlhandlers.conf",
  ".xchat2/usermenu.conf",
  ".xchat2/xchat.conf",

  # Skip cache and other autogenerated cruft from Mozilla:
  ".mozilla/firefox/YOURPROFILE/bookmarks.html",
  ".mozilla/firefox/YOURPROFILE/user.js",
  ".mozilla/firefox/YOURPROFILE/prefs.js",
  ".mozilla/firefox/YOURPROFILE/chrome/",
  ".mozilla/firefox/YOURPROFILE/cookies.txt",
  ".mozilla/firefox/YOURPROFILE/cookperm.txt",
  ".mozilla/firefox/YOURPROFILE/localstore.rdf",
  ".mozilla/firefox/YOURPROFILE/mimeTypes.rdf",
  ".mozilla/firefox/YOURPROFILE/training.dat",
  ".mozilla/firefox/YOURPROFILE/places.sqlite",
  ".mozilla/firefox/YOURPROFILE/signons3.txt",
  ".mozilla/firefox/YOURPROFILE/signons.sqlite",
  ".mozilla/firefox/YOURPROFILE/chrome",
]

if os.access(backupto, os.W_OK) != 1 :
    os.mkdir(backupto, 0755)
# Make sure it exists now and is a directory:
try :
    os.chdir(backupto)
except NameError, e :
    print "Can't make $backupto"
    sys.exit(1)

# Now chdir to home, which is where we really want to be:
os.chdir(os.getenv("HOME"))

# Exclude files which aren't there on the current system.
# This doesn't use a "for fil in backupfiles" loop because
# changing the list from the middle of a for loop confuses Python
# and ends up skipping some files that should be removed.
i=0
while i < len(backupfiles) :
    fil = backupfiles[i]
    if os.access(fil, os.R_OK) != 1 :
        print "Excluding", fil
        backupfiles.remove(fil)
    else :
        i = i+1

if len(backupfiles) < 1 :
    print "None of the files exist!"
    sys.exit(1)

# Make a tarball and save it locally
host = socket.gethostname()
ltime = time.localtime()
filenam = "dotfiles-" + host \
    + "-" + str(ltime[0]) \
    + "-" + str(ltime[1]) + "-" + str(ltime[2]) \
    + ".tgz"

realcmd = "tar czvf " + backupto + "/" + filenam + ' '.join(backupfiles)
print "Running:", realcmd
os.system(realcmd)

print "Made " + backupto + "/" + filenam