rrcs.py :  » Language-Interface » ChinesePython » chinesepython2.1.3-0.4 » Demo » pdist » Python Open Source

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Python Open Source » Language Interface » ChinesePython 
ChinesePython » chinesepython2.1.3 0.4 » Demo » pdist » rrcs.py
#! /usr/bin/env python

"Remote RCS -- command line interface"

import sys
import os
import getopt
import string
import md5
import tempfile
from rcsclient import openrcsclient

def main():
  sys.stdout = sys.stderr
  try:
    opts, rest = getopt.getopt(sys.argv[1:], 'h:p:d:qvL')
    if not rest:
      cmd = 'head'
    else:
      cmd, rest = rest[0], rest[1:]
    if not commands.has_key(cmd):
      raise getopt.error, "unknown command"
    coptset, func = commands[cmd]
    copts, files = getopt.getopt(rest, coptset)
  except getopt.error, msg:
    print msg
    print "usage: rrcs [options] command [options] [file] ..."
    print "where command can be:"
    print "      ci|put      # checkin the given files"
    print "      co|get      # checkout"
    print "      info        # print header info"
    print "      head        # print revision of head branch"
    print "      list        # list filename if valid"
    print "      log         # print full log"
    print "      diff        # diff rcs file and work file"
    print "if no files are given, all remote rcs files are assumed"
    sys.exit(2)
  x = openrcsclient(opts)
  if not files:
    files = x.listfiles()
  for fn in files:
    try:
      func(x, copts, fn)
    except (IOError, os.error), msg:
      print "%s: %s" % (fn, msg)

def checkin(x, copts, fn):
  f = open(fn)
  data = f.read()
  f.close()
  new = not x.isvalid(fn)
  if not new and same(x, copts, fn, data):
    print "%s: unchanged since last checkin" % fn
    return
  print "Checking in", fn, "..."
  message = asklogmessage(new)
  messages = x.put(fn, data, message)
  if messages:
    print messages

def checkout(x, copts, fn):
  data = x.get(fn)
  f = open(fn, 'w')
  f.write(data)
  f.close()

def lock(x, copts, fn):
  x.lock(fn)

def unlock(x, copts, fn):
  x.unlock(fn)

def info(x, copts, fn):
  dict = x.info(fn)
  keys = dict.keys()
  keys.sort()
  for key in keys:
    print key + ':', dict[key]
  print '='*70

def head(x, copts, fn):
  head = x.head(fn)
  print fn, head

def list(x, copts, fn):
  if x.isvalid(fn):
    print fn

def log(x, copts, fn):
  flags = ''
  for o, a in copts:
    flags = flags + ' ' + o + a
  flags = flags[1:]
  messages = x.log(fn, flags)
  print messages

def diff(x, copts, fn):
  if same(x, copts, fn):
    return
  flags = ''
  for o, a in copts:
    flags = flags + ' ' + o + a
  flags = flags[1:]
  data = x.get(fn)
  tfn = tempfile.mktemp()
  try:
    tf = open(tfn, 'w')
    tf.write(data)
    tf.close()
    print 'diff %s -r%s %s' % (flags, x.head(fn), fn)
    sts = os.system('diff %s %s %s' % (flags, tfn, fn))
    if sts:
      print '='*70
  finally:
    remove(tfn)

def same(x, copts, fn, data = None):
  if data is None:
    f = open(fn)
    data = f.read()
    f.close()
  lsum = md5.new(data).digest()
  rsum = x.sum(fn)
  return lsum == rsum

def asklogmessage(new):
  if new:
    print "enter description,",
  else:
    print "enter log message,",
  print "terminate with single '.' or end of file:"
  if new:
    print "NOTE: This is NOT the log message!"
  message = ""
  while 1:
    sys.stderr.write(">> ")
    sys.stderr.flush()
    line = sys.stdin.readline()
    if not line or line == '.\n': break
    message = message + line
  return message

def remove(fn):
  try:
    os.unlink(fn)
  except os.error:
    pass

commands = {
  'ci': ('', checkin),
  'put': ('', checkin),
  'co': ('', checkout),
  'get': ('', checkout),
  'info': ('', info),
  'head': ('', head),
  'list': ('', list),
  'lock': ('', lock),
  'unlock': ('', unlock),
  'log': ('bhLRtd:l:r:s:w:V:', log),
  'diff': ('c', diff),
  }

if __name__ == '__main__':
  main()
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