added some comments

# encoding: utf-8

# encoding: utf-8

from __future__ import division

from __future__ import division

from __future__ import print_function

from __future__ import print_function

"""

# @file khelper.py

# @brief Extract file access data after build, modify CDT project configuration

# (.cproject) accordingly

# @copyright Copyright (C) 2016, Elphel.inc.

# @param <b>License</b>

# This program is free software: you can redistribute it and/or modify

# it under the terms of the GNU General Public License as published by

# the Free Software Foundation, either version 3 of the License, or

# (at your option) any later version.

# This program is distributed in the hope that it will be useful,

# but WITHOUT ANY WARRANTY; without even the implied warranty of

# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

# GNU General Public License for more details.

# You should have received a copy of the GNU General Public License

# along with this program.  If not, see <http:#www.gnu.org/licenses/>.

@author:     Andrey Filippov

@license:    GPLv3.0+

@contact:    andrey@elphel.coml

@deffield    updated: Updated

"""

__author__ = "Andrey Filippov"

__copyright__ = "Copyright 2016, Elphel, Inc."

__license__ = "GPL"

__version__ = "3.0+"

__maintainer__ = "Andrey Filippov"

__email__ = "andrey@elphel.com"

__status__ = "Development"

import sys

import sys

import os

import os

import time

import time

import xml.etree.ElementTree as ET

import xml.etree.ElementTree as ET

'''

'''

TODO: make 2 runs, first before

TODO:Automate, find out why separate touch commands are needed

bitbake linux-xlnx

Run this program twice:

khelper.py linux -1

1-st run ./khelper.py linux -1

#get timestamp

and save shown timestamp

#next 2 commands - I do not understand why their access timestamp is set during previous command and does not change during bitbake 

Then run (some mystery here)

touch /home/eyesis/git/elphel393/linux-elphel/src/drivers/ata/ahci_elphel.c

touch src/drivers/ata/ahci_elphel.c

touch /home/eyesis/git/elphel393/linux-elphel/src/drivers/elphel/sensor_common.c

touch src/drivers/elphel/sensor_common.c

Wait 5 seconds and run (in a different console with appropriate sourcing)

bitbake linux-xlnx -c compile -f 

bitbake linux-xlnx -c compile -f 

khelper.py linux <timestamp_from_the_first_run>

Then again

./khelper.py linux <timestamp_from_the_first_run>

If somethong went wrong you will need to resore .cproject from eclipse_project_setup directory

'''

'''

def file_tree(flist): # Each file in list is a file, no directories

def file_tree(flist): # Each file in list is a file, no directories

    ftree={}

    ftree={}