a dmenu+xdotool launcher which can paste to terminal and show often used commands at top

launcher

#!/usr/bin/python3

#  launcher (C) vrdhn0@gmail.com
#   A dmenu & xdotool based launcher
#   Features
#   * Select from previously entered commands, or enter new one
#   * Listing sorted by usage frequency
#   * pasted to application using xdotool
#   * terminate by '&' to launch as X application
#   * manipulate ~/.config/launcher.db to add/remove/bump usage count
#
# This is python3, because it's the default on ArchLinux

#  Example
#     cd FOOBAR             }- will type this on last window
#     cd FOOBAR ; xterm &   }- will open xterm with FOOBAR dir
#
# Bound to a Window Manager Key for best results
# e.g. for Open Box:
#     <keybind key="W-space">
#       <action name="Execute">
#         <command>launcher -b -l 10 -p 'RUN&gt; ' -fn 10x20 -nb black -nf white -sb blue</command>
#       </action>
#     </keybind>
 


import sys
import operator
import subprocess
from os.path import expanduser
import os

dbfile=expanduser("~") + "/.config/launcher.db"
dbdict={}

try:
  x = open(dbfile,"r")
  for l in x.readlines():
    w = l.split()
    dbdict[ ' '.join(w[1:])] = int(w[0])
    x.close()
except:
  pass

s = sorted(dbdict.items(), key=operator.itemgetter(1),reverse=True)
sen = "\n".join([ x[0] for x in s])

p = subprocess.Popen( [ "dmenu" ] + sys.argv[1:],
                     stdout=subprocess.PIPE, stdin=subprocess.PIPE)


out = p.communicate(sen.encode('utf-8'))
out = ' '.join(out[0].decode('utf-8').split())

if out != '':
  
  if out in dbdict:
    dbdict[out] += 1
  else:
    dbdict[out] = 1

  x = open(dbfile,"w")
  for k in dbdict:
    x.write(str(dbdict[k]) + " " + k + '\n')
  x.close()

  ### If last character is &, than run directly instead of pasting
  print(out)
  if out[-1] == '&' :
    os.system(out)
  else:
    p = subprocess.Popen( [ "xdotool", "type", out+"\n" ] )
    out = p.communicate()


## end of launcher