├── README.md
└── incresearch.py


/README.md:
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1 | #incresearch
2 | Search as you type. A frontend over egrep.
3 | 
4 |     python incresearch.py
5 | 


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/incresearch.py:
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  1 | import os
  2 | import tty
  3 | import select
  4 | import sys
  5 | import termios
  6 | import signal
  7 | 
  8 | from sh import egrep
  9 | 
 10 | # TODO Proper encapsulation
 11 | 
 12 | 
 13 | class Interact(object):
 14 |     def __init__(self):
 15 |         self.count = 0
 16 |         self.muted = False
 17 |         self.limit = 0
 18 | 
 19 |     def __call__(self, line, stdin, process):
 20 |         if self.limit > 0 and self.count >= self.limit:
 21 |             process.kill()
 22 |             self.count = 0
 23 |             print
 24 |         else:
 25 |             self.count += 1
 26 |             if not self.muted:
 27 |                 print line,
 28 |             else:
 29 |                 process.kill()
 30 |                 self.count = 0
 31 |                 print
 32 | 
 33 |     def mute(self):
 34 |         self.muted = True
 35 | 
 36 | 
 37 | class TermSearch(object):
 38 |     def __init__(self, path):
 39 |         self.s = ''
 40 |         self.old_settings = termios.tcgetattr(sys.stdin)
 41 |         self.old = None
 42 |         self.path = path
 43 | 
 44 |     def escape(self, s):
 45 |         escape_chars = ['(', ')', '.']
 46 | 
 47 |         for c in escape_chars:
 48 |             return s.replace(c, '\\' + c)
 49 | 
 50 |         return s
 51 | 
 52 |     def start(self):
 53 |         try:
 54 |             tty.setcbreak(sys.stdin.fileno())
 55 |             while True:
 56 |                 if self.isData():
 57 |                     c = sys.stdin.read(1)
 58 |                     self.s += c
 59 |                     if c == '\x0A': # Return
 60 |                         continue;
 61 |                     if c == '\x7f': # Backspace
 62 |                         self.s = self.s[:-2]
 63 | 
 64 |                     if self.s != '':
 65 |                         n = Interact()
 66 |                         egrep(
 67 |                             # Recursive
 68 |                             "-R",
 69 |                             # Case insensitive
 70 |                             "-i",
 71 |                             # Prefix line number
 72 |                             "-n",
 73 |                             # Ignore binary
 74 |                             "-I",
 75 |                             # Max 3 results per file
 76 |                             "-m", 3,
 77 |                             # 2 lines of context
 78 |                             "-C", 2,
 79 |                             # Only list files
 80 |                             "-l",
 81 |                             self.escape(self.s), self.path, _bg=True, _out=n)
 82 |                         if self.old is not None:
 83 |                             self.old.mute()
 84 |                             print
 85 |                             print '-----------------------------------------'
 86 |                             print self.s
 87 |                         self.old = n
 88 |         
 89 |         finally:
 90 |             termios.tcsetattr(sys.stdin, termios.TCSADRAIN, self.old_settings)
 91 | 
 92 |     def isData(self):
 93 |         return select.select([sys.stdin], [], [], 250) == ([sys.stdin], [], [])
 94 | 
 95 | if __name__ == '__main__':
 96 |     def signal_handler(signal, frame):
 97 |         sys.exit(0)
 98 | 
 99 |     signal.signal(signal.SIGINT, signal_handler)
100 |     if len(sys.argv) == 2:
101 |         TermSearch(sys.argv[1]).start()
102 |     else:
103 |         TermSearch().start()
104 |     
105 | 


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