#

# Copyright (c) 2007-2009 Nokia Corporation and/or its subsidiary(-ies).

# All rights reserved.

# This component and the accompanying materials are made available

# under the terms of the License "Eclipse Public License v1.0"

# which accompanies this distribution, and is available

# at the URL "http://www.eclipse.org/legal/epl-v10.html".

#

# Initial Contributors:

# Nokia Corporation - initial contribution.

#

# Contributors:

#

# Description: 

# Generate some useful statistics from a Raptor build log

# Work out what was specified to make but not built even if

# it was not mentioned in the make error output because some

# child's dependency was not satisfied.

# Needs raptor --tracking option to set make to use -debug=v

# An example bit of make output that can be analysed:

#

 File `fred.exe' does not exist.

  Considering target file `fred.in'.

   File `fred.in' does not exist.

    Considering target file `a.o'.

     File `a.o' does not exist.

      Considering target file `a.c'.

       Finished prerequisites of target file `a.c'.

      No need to remake target `a.c'.

      Pruning file `a.c'.

     Finished prerequisites of target file `a.o'.

    Must remake target `a.o'.

cc    -c -o a.o a.c

    Successfully remade target file `a.o'.

    Considering target file `b.o'.

     File `b.o' does not exist.

      Considering target file `b.c'.

       Finished prerequisites of target file `b.c'.

      No need to remake target `b.c'.

      Pruning file `b.c'.

     Finished prerequisites of target file `b.o'.

    Must remake target `b.o'.

cc    -c -o b.o b.c

    Successfully remade target file `b.o'.

   Finished prerequisites of target file `fred.in'.

  Must remake target `fred.in'.

  Successfully remade target file `fred.in'.

 Finished prerequisites of target file `fred.exe'.

Must remake target `fred.exe'.

Successfully remade target file `fred.exe'.

"""

# The output is a filename followed by a number.  If the number is 0

# Then the prerequisites that file now exist.

# If > 0 then the prerequisites for that file could not be completed.

import sys

from  optparse import OptionParser

import re

import os

from stat import *

def genstats(file,showmissing):

	filecount = {}

	startre = re.compile("[\t ]*File `(?P<file>[^']*)' does not exist")

	endre = re.compile("[\t ]*Finished prerequisites of target file `(?P<file>[^']*)'\..*")

	for x in file.readlines():

		g = startre.match(x)

		if g is not None:

			filename = g.group('file')

			try:

				filecount[filename] += 1

			except KeyError:

				filecount[filename] = 1

		else:

			g = endre.match(x)

			if g is not None:

				filename = g.group('file')

				try:

					filecount[filename] -= 1

				except KeyError:

					filecount[filename] = 0

	for k in filecount:

		if showmissing:

			if filecount[k] > 0:

				print "%s: %i" % (k,filecount[k])

		else:

			print "%s: %i" % (k,filecount[k])

parser = OptionParser(prog = "matchmade",

	usage = "%prog [-h | options] logfile")

parser.add_option("-m", "--missing-prerequistes", default = False,

	 action="store_true", dest="missing", help="List those targets whose pre-requisites could not be found or made") 

(options, args) = parser.parse_args()

logname="stdin"

if len(args) > 0:

	logname=args[0]

	file = open(logname,"r")

else:

	file = sys.stdin

genstats(file,options.missing)

if file != sys.stdin:

	file.close()