view tests/md5sum.py @ 2039:0c438fd25e6e

bash_completion: small optimization

Right now we always call "hg help $cmd" to get the canonical name of $cmd
(i.e. to go from "co" to "update").

This patch optimistically assumes that $cmd is already the canonical form
and tries to generate completions for it.  If that fails, it falls back
to canonicalizing $cmd and trying again.

This means that:

- if a command or alias is explicitly handled by the
  _hg_command_specific function, things get somewhat faster

- as long as the canonical $cmd is handled by _hg_command_specific, all
  its aliases and abbreviations are also handled.

#! /usr/bin/env python
#
# Based on python's Tools/scripts/md5sum.py
#
# This software may be used and distributed according to the terms
# of the PYTHON SOFTWARE FOUNDATION LICENSE VERSION 2, which is
# GPL-compatible.

import sys
import os
import md5

for filename in sys.argv[1:]:
    try:
        fp = open(filename, 'rb')
    except IOError, msg:
        sys.stderr.write('%s: Can\'t open: %s\n' % (filename, msg))
        sys.exit(1)
    
    m = md5.new()
    try:
        while 1:
            data = fp.read(8192)
            if not data:
                break
            m.update(data)
    except IOError, msg:
        sys.stderr.write('%s: I/O error: %s\n' % (filename, msg))
        sys.exit(1)
    sys.stdout.write('%s  %s\n' % (m.hexdigest(), filename))

sys.exit(0)