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#!/usr/bin/env python
# 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 2 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 Library General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
#
# rdm_compare.py
# Copyright (C) 2012 Simon Newton
import getopt
import os
import pickle
import sys
import tempfile
import textwrap
import webbrowser
from ola.UID import UID
'''Compare the RDM configurations saves with rdm_snapshot.py'''
__author__ = 'nomis52@gmail.com (Simon Newton)'
class Error(Exception):
"""Base exception class."""
class LoadException(Error):
"""Raised when we can't write to the output file."""
def Usage():
print(textwrap.dedent("""\
Usage: rdm_compare.py <file1> <file2>
Compare two RDM configurations saved with rdm_snapshot.
Flags:
-h, --help Display this help message and exit."""))
def ReadFile(filename):
try:
f = open(filename, 'rb')
except IOError as e:
raise LoadException(e)
raw_data = pickle.load(f)
f.close()
data = {}
for uid, settings in raw_data.items():
data[UID.FromString(uid)] = settings
return data
def TransformKey(key):
tokens = key.split('_')
output = []
for t in tokens:
if t == 'dmx':
output.append('DMX')
else:
output.append(t.capitalize())
return ' '.join(output)
def Diff(configuration1, configuration2):
"""Return the added and removed devices."""
added = set()
changed = []
removed = set()
for uid, config1 in configuration1.items():
config2 = configuration2.get(uid)
if config2 is None:
removed.add(uid)
continue
fields = ['label', 'dmx_start_address', 'personality']
for field in fields:
value1 = config1.get(field)
value2 = config2.get(field)
if value1 != value2:
changed.append((uid, TransformKey(field), value1, value2))
for uid in configuration2:
if uid not in configuration1:
added.add(uid)
return added, changed, removed
def AddList(output, uids, title):
if not uids:
return
output.append(' <h4>%s</h4> <ul>' % title)
for uid in uids:
output.append(' <li>%s</li>' % uid)
output.append(' </ul>')
def DiffInBrowser(configuration1, configuration2):
"""Diff the configurations and output a HTML page."""
added, changed, removed = Diff(configuration1, configuration2)
output = []
output.append(textwrap.dedent("""\
<html>
<head>
<title>RDM Comparator</title>
<style type='text/css'>
table {
padding: 0px;
margin: 0px;
border-spacing: 0px;
border-collapse: collapse;
}
table td {
border: 1px solid #000000;
padding: 3px 10px 3px 10px;
}
</style>
</head>
<body>
<h3>RDM Comparator</h3>
"""))
AddList(output, added, 'Devices Added')
AddList(output, removed, 'Devices Removed')
if changed:
output.append(' <h4>Device Changes</h4>')
output.append(' <table>')
output.append(' <tr><th>UID</th><th>Field</th><th>Old</th><th>New</th>'
'</tr>')
for row in changed:
output.append(' </tr>')
output.append('<td>%s</td><td>%s</td><td>%s</td><td>%s</td>' % row)
output.append(' </tr>')
output.append(' </table>')
output.append(textwrap.dedent("""\
</body>
</html>
"""))
fd, filename = tempfile.mkstemp('.html')
f = os.fdopen(fd, 'w')
f.write('\n'.join(output))
f.close()
# open in new tab if possible
webbrowser.open('file://%s' % filename, new=2)
def DiffToStdout(configuration1, configuration2):
"""Diff the configurations and write to STDOUT."""
added, changed, removed = Diff(configuration1, configuration2)
for uid in added:
print('Device %s was added' % uid)
for uid in removed:
print('Device %s was removed' % uid)
for uid, human_field, value1, value2 in changed:
print('%s: %s changed from %s to %s' %
(uid, human_field, value1, value2))
def main():
try:
opts, args = getopt.getopt(
sys.argv[1:],
'hb',
['help', 'browser'])
except getopt.GetoptError as err:
print(str(err))
Usage()
sys.exit(2)
use_browser = False
if len(args) != 2:
Usage()
sys.exit()
for o, a in opts:
if o in ('-h', '--help'):
Usage()
sys.exit()
elif o in ('-b', '--browser'):
use_browser = True
configuration1 = ReadFile(args[0])
configuration2 = ReadFile(args[1])
if use_browser:
DiffInBrowser(configuration1, configuration2)
else:
DiffToStdout(configuration1, configuration2)
if __name__ == '__main__':
main()
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