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#!/usr/bin/env python2
# -- this code is licensed GPLv3
# Copyright 2013 Jezra
import sys
import signal
import gobject
import os.path
import subprocess
from optparse import OptionParser
try:
import yaml
except:
print "YAML is not supported. ~/.config/blather/options.yaml will not function"
#where are the files?
conf_dir = os.path.expanduser("~/.config/blather")
lang_dir = os.path.join(conf_dir, "language")
command_file = os.path.join(conf_dir, "commands.conf")
strings_file = os.path.join(conf_dir, "sentences.corpus")
history_file = os.path.join(conf_dir, "blather.history")
opt_file = os.path.join(conf_dir, "options.yaml")
lang_file = os.path.join(lang_dir,'lm')
dic_file = os.path.join(lang_dir,'dic')
#make the lang_dir if it doesn't exist
if not os.path.exists(lang_dir):
os.makedirs(lang_dir)
class Blather:
def __init__(self, opts):
#import the recognizer so Gst doesn't clobber our -h
from Recognizer import Recognizer
self.ui = None
self.options = {}
ui_continuous_listen = False
self.continuous_listen = False
self.commands = {}
#read the commands
self.read_commands()
#load the options file
self.load_options()
#merge the opts
for k,v in opts.__dict__.items():
if (not k in self.options) or opts.override:
self.options[k] = v
print "Using Options: ", self.options
if self.options['interface'] != None:
if self.options['interface'] == "q":
from QtUI import UI
elif self.options['interface'] == "g":
from GtkUI import UI
elif self.options['interface'] == "gt":
from GtkTrayUI import UI
else:
print "no GUI defined"
sys.exit()
self.ui = UI(args, self.options['continuous'])
self.ui.connect("command", self.process_command)
#can we load the icon resource?
icon = self.load_resource("icon.png")
if icon:
self.ui.set_icon_active_asset(icon)
#can we load the icon_inactive resource?
icon_inactive = self.load_resource("icon_inactive.png")
if icon_inactive:
self.ui.set_icon_inactive_asset(icon_inactive)
if self.options['history']:
self.history = []
#create the recognizer
self.recognizer = Recognizer(lang_file, dic_file, self.options['microphone'] )
self.recognizer.connect('finished',self.recognizer_finished)
def read_commands(self):
#read the.commands file
file_lines = open(command_file)
strings = open(strings_file, "w")
for line in file_lines:
print line
#trim the white spaces
line = line.strip()
#if the line has length and the first char isn't a hash
if len(line) and line[0]!="#":
#this is a parsible line
(key,value) = line.split(":",1)
print key, value
self.commands[key.strip().lower()] = value.strip()
strings.write( key.strip()+"\n")
#close the strings file
strings.close()
def load_options(self):
#is there an opt file?
try:
opt_fh = open(opt_file)
text = opt_fh.read()
self.options = yaml.load(text)
except:
pass
def log_history(self,text):
if self.options['history']:
self.history.append(text)
if len(self.history) > self.options['history']:
#pop off the first item
self.history.pop(0)
#open and truncate the blather history file
hfile = open(history_file, "w")
for line in self.history:
hfile.write( line+"\n")
#close the file
hfile.close()
def recognizer_finished(self, recognizer, text):
t = text.lower()
#is there a matching command?
if self.commands.has_key( t ):
#run the valid_sentence_command if there is a valid sentence command
if self.options['valid_sentence_command']:
subprocess.call(self.options['valid_sentence_command'], shell=True)
cmd = self.commands[t]
print cmd
subprocess.call(cmd, shell=True)
self.log_history(text)
else:
#run the invalid_sentence_command if there is a valid sentence command
if self.options['invalid_sentence_command']:
subprocess.call(self.options['invalid_sentence_command'], shell=True)
print "no matching command %s" %(t)
#if there is a UI and we are not continuous listen
if self.ui:
if not self.continuous_listen:
#stop listening
self.recognizer.pause()
#let the UI know that there is a finish
self.ui.finished(t)
def run(self):
if self.ui:
self.ui.run()
else:
blather.recognizer.listen()
def quit(self):
sys.exit()
def process_command(self, UI, command):
print command
if command == "listen":
self.recognizer.listen()
elif command == "stop":
self.recognizer.pause()
elif command == "continuous_listen":
self.continuous_listen = True
self.recognizer.listen()
elif command == "continuous_stop":
self.continuous_listen = False
self.recognizer.pause()
elif command == "quit":
self.quit()
def load_resource(self,string):
local_data = os.path.join(os.path.dirname(__file__), 'data')
paths = ["/usr/share/blather/","/usr/local/share/blather", local_data]
for path in paths:
resource = os.path.join(path, string)
if os.path.exists( resource ):
return resource
#if we get this far, no resource was found
return False
if __name__ == "__main__":
parser = OptionParser()
parser.add_option("-i", "--interface", type="string", dest="interface",
action='store',
help="Interface to use (if any). 'q' for Qt, 'g' for GTK, 'gt' for GTK system tray icon")
parser.add_option("-c", "--continuous",
action="store_true", dest="continuous", default=False,
help="starts interface with 'continuous' listen enabled")
parser.add_option("-o", "--override",
action="store_true", dest="override", default=False,
help="override config file with command line options")
parser.add_option("-H", "--history", type="int",
action="store", dest="history",
help="number of commands to store in history file")
parser.add_option("-m", "--microphone", type="int",
action="store", dest="microphone", default=None,
help="Audio input card to use (if other than system default)")
parser.add_option("--valid-sentence-command", type="string", dest="valid_sentence_command",
action='store',
help="command to run when a valid sentence is detected")
parser.add_option( "--invalid-sentence-command", type="string", dest="invalid_sentence_command",
action='store',
help="command to run when an invalid sentence is detected")
(options, args) = parser.parse_args()
#make our blather object
blather = Blather(options)
#init gobject threads
gobject.threads_init()
#we want a main loop
main_loop = gobject.MainLoop()
#handle sigint
signal.signal(signal.SIGINT, signal.SIG_DFL)
#run the blather
blather.run()
#start the main loop
try:
main_loop.run()
except:
print "time to quit"
main_loop.quit()
sys.exit()
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