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  #   ˆl–Ým_JJh¥ ² ¸È®2ò˜´oÊ„.4ßÃÈ 5M    #! /usr/bin/env python

"""Remote CVS -- command line interface"""

# XXX To do:
#
# Bugs:
# - if the remote file is deleted, "rcvs update" will fail
#
# Functionality:
# - cvs rm
# - descend into directories (alraedy done for update)
# - conflict resolution
# - other relevant commands?
# - branches
#
# - Finesses:
# - retain file mode's x bits
# - complain when "nothing known about filename"
# - edit log message the way CVS lets you edit it
# - cvs diff -rREVA -rREVB
# - send mail the way CVS sends it
#
# Performance:
# - cache remote checksums (for every revision ever seen!)
# - translate symbolic revisions to numeric revisions
#
# Reliability:
# - remote locking
#
# Security:
# - Authenticated RPC?


from cvslib import CVS, File
import md5
import os
import string
import sys
from cmdfw import CommandFrameWork


DEF_LOCAL = 1                           # Default -l


class MyFile(File):

    def action(self):
        """Return a code indicating the update status of this file.

        The possible return values are:

        '=' -- everything's fine
        '0' -- file doesn't exist anywhere
        '?' -- exists locally only
        'A' -- new locally
        'R' -- deleted locally
        'U' -- changed remotely, no changes locally
               (includes new remotely or deleted remotely)
        'M' -- changed locally, no changes remotely
        'C' -- conflict: changed locally as well as remotely
               (includes cases where the file has been added
               or removed locally and remotely)
        'D' -- deleted remotely
        'N' -- new remotely
        'r' -- get rid of entry
        'c' -- create entry
        'u' -- update entry

        (and probably others :-)
        """
        if not self.lseen:
            self.getlocal()
        if not self.rseen:
            self.getremote()
        if not self.eseen:
            if not self.lsum:
                if not self.rsum: return '0' # Never heard of
                else:
                    return 'N' # New remotely
            else: # self.lsum
                if not self.rsum: return '?' # Local only
                # Local and remote, but no entry
                if self.lsum == self.rsum:
                    return 'c' # Restore entry only
                else: return 'C' # Real conflict
        else: # self.eseen
            if not self.lsum:
                if self.edeleted:
                    if self.rsum: return 'R' # Removed
                    else: return 'r' # Get rid of entry
                else: # not self.edeleted
                    if self.rsum:
                        print "warning:",
                        print self.file,
                        print "was lost"
                        return 'U'
                    else: return 'r' # Get rid of entry
            else: # self.lsum
                if not self.rsum:
                    if self.enew: return 'A' # New locally
                    else: return 'D' # Deleted remotely
                else: # self.rsum
                    if self.enew:
                        if self.lsum == self.rsum:
                            return 'u'
                        else:
                            return 'C'
                    if self.lsum == self.esum:
                        if self.esum == self.rsum:
                            return '='
                        else:
                            return 'U'
                    elif self.esum == self.rsum:
                        return 'M'
                    elif self.lsum == self.rsum:
                        return 'u'
                    else:
                        return 'C'

    def update(self):
        code = self.action()
        if code == '=': return
        print code, self.file
        if code in ('U', 'N'):
            self.get()
        elif code == 'C':
            print "%s: conflict resolution not yet implemented" % \
                  self.file
        elif code == 'D':
            remove(self.file)
            self.eseen = 0
        elif code == '