#!/usr/local/bin/python

"""A Python version of the Perforce "p4" client.

This uses the Python type P4Client, which is a wrapper for the
Perforce ClientApi object. It includes the "ClientUser" class, which
is a Python version of the default ClientUser from Perforce.

Copyright 1999, Mike Meyer. All Rights Reserved
See the comment in the source for redistribution permission.
"""

# License:
# This file and any derivatives or translations of it may be freely
# copied and redistributed so long as:
#	1) This license and copyright notice are not changed.
#	2) Any fixes or enhancements are reported back to either the
#	   author (mwm@phone.net).
# and any of:
#	a) The source is redistributed with it.
#	b) The source is compiled unmodified, and instructions for finding
#	   the original source are included.
#	c) The source is made available by some other means.

import sys, os, string

class ClientUser:
    """Sample user interface class for use with the P4Client class.
    
    This classes methods are invoked by P4Client object to communicate with
    the user."""

    debug = 0

    def OutputError(my, output):
	"Process the text of an error message."

	if my.debug: print "Python: OutputError"
	sys.stderr.write(output)

    def HandleError(my, output, severity):
	"Process an error event"

	if my.debug: print "Python: HandleError; severity", severity
	my.OutputError(output)

    def InputData(my):
	"Returns input data."

	if my.debug: print "Python: InputData"
	return sys.stdin.read()

    def OutputInfo(my, level, data):
	"Process output data, with level info."

	if my.debug: print "Python: OutputInfo; level", level

	level = string.atoi(level)
	while level:
	    print "...",
	    level = level - 1
	print data

    def OutputBinary(my, output):
	"Process binary output data"

	if my.debug: print "Python: OutputBinary"
	sys.stdout.write(output)

    def OutputText(my, output):
	"Process text output data"

	if my.debug: print "Python: OutputText"
	sys.stdout.write(output)

    def OutputStat(my, dict):
	"Process dictionary of file status info"

	text = "otherOpen"
	test = len(text)
	if my.debug: print "Python: OutputStat"
	for key, value in dict.items():
	    if len(key) > test and key[:test] == text:
		my.OutputInfo('2', "%s %s" % (key, value))
	    else:
		my.OutputInfo('1', "%s %s" % (key, value))

    def Prompt(my, msg):
	"Returns results of prompting with msg"

	if my.debug: print "Python: Prompt"
	return raw_input(msg)

    def ErrorPause(my, buf):
	"Display an error message and wait for user to respond."

	if my.debug: print "Python: ErrorPause"
	my.OutputError(buf)
	raw_input('Hit return to continue...')

    def Edit(my, file):
	"Process an edit request."

	if my.debug: print "Python: Edit - ", file

	if os.environ.has_key("P4EDITOR"): editor = os.environ["P4EDITOR"]
	elif os.environ.has_key("EDITOR"): editor = os.environ["EDITOR"]
	else: editor = "vi"	# If you don't say, you deserve what you get

	os.system("%s %s" % (editor, file))
	
    def Diff(my, file1, file2, doPage, flags):
	"Process a diff request."

	if os.environ.has_key("P4DIFF"): diff = os.environ["P4DIFF"]
	elif os.environ.has_key("DIFF"): diff = os.environ["DIFF"]
	else: raise ValueError, \
	      "No diff program specified with $P4DIFF or $DIFF."

	if not doPage: pager = 0
	else:
	    if os.environ.has_key("P4PAGER"): pager = os.environ["P4pager"]
	    elif os.environ.has_key("pager"): pager = os.environ["pager"]
	    else: pager = 0

	if pager:
	    os.system("%s %s %s %s | %s" % (diff, flags, file1, file2, pager))
	else:
	    os.system("%s %s %s %s" % (diff, flags, file1, file2))
	    

    def Merge(my, base, leg1, leg2, result):
	"Process a merge request."

	if os.environ.has_key("P4MERGE"): merger = os.environ["P4MERGE"]
	elif os.environ.has_key("MERGE"): merger = os.environ["MERGE"]
	else: raise ValueError, \
	      "No merge program specified with $P4MERGE or $MERGE."

	os.system("%s %s %s %s %s" % (merger, base, leg1, leg2, result))

    def Help(my, help):
	"Process help text."

	if my.debug: print "Python: Help"
	for line in help:
	    print line


if __name__ == "__main__":
    from P4Client import P4Client

    ui = ClientUser()
    ui.debug = 1

    p4 = P4Client(ui)
    p4.Init()
    p4.SetArgv(sys.argv[2:])
    p4.Run(sys.argv[1])
    p4.Final()