1

#!/usr/bin/env python

     2

# -*- coding: utf-8 -*-

     3

     4

# This file is part of Beremiz, a Integrated Development Environment for

     5

# programming IEC 61131-3 automates supporting plcopen standard and CanFestival.

     6

#

     7

# Copyright (C) 2007: Edouard TISSERANT and Laurent BESSARD

     8

#

     9

# See COPYING file for copyrights details.

    10

#

    11

# This program is free software; you can redistribute it and/or

    12

# modify it under the terms of the GNU General Public License

    13

# as published by the Free Software Foundation; either version 2

    14

# of the License, or (at your option) any later version.

    15

#

    16

# This program is distributed in the hope that it will be useful,

    17

# but WITHOUT ANY WARRANTY; without even the implied warranty of

    18

# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

    19

# GNU General Public License for more details.

    20

#

    21

# You should have received a copy of the GNU General Public License

    22

# along with this program; if not, write to the Free Software

    23

# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.

    24

    28

from util.ProcessLogger import ProcessLogger

    29

import hashlib

    30

    31

import time

    32

    33

includes_re =  re.compile('\s*#include\s*["<]([^">]*)[">].*')

    34

    35

class toolchain_makefile():

    36

    def __init__(self, CTRInstance):

    37

        self.CTRInstance = CTRInstance

    38

        self.md5key = None

    39

        self.buildpath = None

    40

        self.SetBuildPath(self.CTRInstance._getBuildPath())

    41

    42

    def SetBuildPath(self, buildpath):

    43

        if self.buildpath != buildpath:

    44

            self.buildpath = buildpath

    45

            self.md5key = None

    46

    47

    def GetBinaryCode(self):

    48

        return None

    49

    50

    def _GetMD5FileName(self):

    51

        return os.path.join(self.buildpath, "lastbuildPLC.md5")

    52

    53

    def ResetBinaryCodeMD5(self):

    54

        self.md5key = None

    55

        try:

    56

            os.remove(self._GetMD5FileName())

    57

        except Exception, e:

    58

            pass

    59

    60

    def GetBinaryCodeMD5(self):

    61

        if self.md5key is not None:

    62

            return self.md5key

    63

        else:

    64

            try:

    65

                return open(self._GetMD5FileName(), "r").read()

    66

            except IOError, e:

    67

                return None

    68

    69

    def concat_deps(self, bn):

    70

        # read source

    71

        src = open(os.path.join(self.buildpath, bn),"r").read()

    72

        # update direct dependencies

    73

        deps = []

    74

        for l in src.splitlines():

    75

            res = includes_re.match(l)

    76

            if res is not None:

    77

                depfn = res.groups()[0]

    78

                if os.path.exists(os.path.join(self.buildpath, depfn)):

    79

                    #print bn + " depends on "+depfn

    80

                    deps.append(depfn)

    81

        # recurse through deps

    82

        # TODO detect cicular deps.

    83

        return reduce(operator.concat, map(self.concat_deps, deps), src)

    84

    85

    def build(self):

    86

        srcfiles= []

    87

        cflags = []

    88

        wholesrcdata = ""

    89

        for Location, CFilesAndCFLAGS, DoCalls in self.CTRInstance.LocationCFilesAndCFLAGS:

    90

            # Get CFiles list to give it to makefile

    91

            for CFile, CFLAGS in CFilesAndCFLAGS:

    92

                CFileName = os.path.basename(CFile)

    93

                wholesrcdata += self.concat_deps(CFileName)

    94

                srcfiles.append(CFileName)

    95

                if CFLAGS not in cflags:

    96

                    cflags.append(CFLAGS)

    97

    98

        oldmd5 = self.md5key

    99

        self.md5key = hashlib.md5(wholesrcdata).hexdigest()

   100

   101

        # Store new PLC filename based on md5 key

   102

        f = open(self._GetMD5FileName(), "w")

   103

        f.write(self.md5key)

   104

        f.close()

   105

   106

        if oldmd5 != self.md5key :

   107

            target = self.CTRInstance.GetTarget().getcontent()

   108

            beremizcommand = {"src": ' '.join(srcfiles),

   109

                              "cflags": ' '.join(cflags),

   110

                              "md5": self.md5key,

   111

                              "buildpath": self.buildpath

   112

                             }

   113

   114

            # clean sequence of multiple whitespaces

   115

            cmd = re.sub(r"[ ]+", " ", target.getCommand().strip())

   116

   117

            command = [ token % beremizcommand for token in cmd.split(' ')]

   118

   119

            # Call Makefile to build PLC code and link it with target specific code

   120

            status, result, err_result = ProcessLogger(self.CTRInstance.logger,

   121

                                                       command).spin()

   122

            if status :

   123

                self.md5key = None

   124

                self.CTRInstance.logger.write_error(_("C compilation failed.\n"))

   125

                return False

   126

            return True

   127

        else :

   128

            self.CTRInstance.logger.write(_("Source didn't change, no build.\n"))

   129

            return True