diff options
Diffstat (limited to 'contrib')
| -rwxr-xr-x | contrib/wrapper.py | 71 | 
1 files changed, 71 insertions, 0 deletions
diff --git a/contrib/wrapper.py b/contrib/wrapper.py new file mode 100755 index 0000000..ccc292b --- /dev/null +++ b/contrib/wrapper.py @@ -0,0 +1,71 @@ +#!/usr/bin/env python +# -*- coding: utf-8 -*- + +# This script is a simple wrapper which prefixes each i3status line with custom +# information. It is a python reimplementation of: +# http://code.stapelberg.de/git/i3status/tree/contrib/wrapper.pl +# +# To use it, ensure your ~/.i3status.conf contains this line: +#     output_format = "i3bar" +# in the 'general' section. +# Then, in your ~/.i3/config, use: +#     status_command i3status | ~/i3status/contrib/wrapper.py +# In the 'bar' section. +# +# In its current version it will display the cpu frequency governor, but you +# are free to change it to display whatever you like, see the comment in the +# source code below. +# +# © 2012 Valentin Haenel <valentin.haenel@gmx.de> +# +# This program is free software. It comes without any warranty, to the extent +# permitted by applicable law. You can redistribute it and/or modify it under +# the terms of the Do What The Fuck You Want To Public License (WTFPL), Version +# 2, as published by Sam Hocevar. See http://sam.zoy.org/wtfpl/COPYING for more +# details. + +import sys +import json + +def get_governor(): +    """ Get the current governor for cpu0, assuming all CPUs use the same. """ +    with open('/sys/devices/system/cpu/cpu0/cpufreq/scaling_governor') as fp: +        return fp.readlines()[0].strip() + +def print_line(message): +    """ Non-buffered printing to stdout. """ +    sys.stdout.write(message + '\n') +    sys.stdout.flush() + +def read_line(): +    """ Interrupted respecting reader for stdin. """ +    # try reading a line, removing any extra whitespace +    try: +        line = sys.stdin.readline().strip() +        # i3status sends EOF, or an empty line +        if not line: +            sys.exit(3) +        return line +    # exit on ctrl-c +    except KeyboardInterrupt: +        sys.exit() + +if __name__ == '__main__': +    # Skip the first line which contains the version header. +    print_line(read_line()) + +    # The second line contains the start of the infinite array. +    print_line(read_line()) + +    while True: +        line, prefix = read_line(), '' +        # ignore comma at start of lines +        if line.startswith(','): +            line, prefix = line[1:], ',' + +        j = json.loads(line) +        # insert information into the start of the json, but could be anywhere +        # CHANGE THIS LINE TO INSERT SOMETHING ELSE +        j.insert(0, {'full_text' : '%s' % get_governor(), 'name' : 'gov'}) +        # and echo back new encoded json +        print_line(prefix+json.dumps(j))  | 
