src/BuildSystem/BuildSetup.pm

#
#
# Interface
# ---------
# new(ConfigArea) : A new BuildSetup
# BuildSetup(directory,targets) : prepare the ground for a build and build
# getclass(directory) : return (Class, ClassDir, BuildFileobject) 
#                       associated with directory
# setup(dir)

package BuildSystem::BuildSetup;
require 5.004;
use Utilities::Verbose;
use Utilities::SCRAMUtils;
use BuildSystem::BuildFile;
use Utilities::AddDir;
@ISA=qw(Utilities::Verbose);

sub new {
        my $class=shift;
        my $self={};
        bless $self,$class;
        $self->{area}=shift;
        $self->{toolbox}=$self->{area}->toolbox();
        $self->{projconfigdir}=$self->{area}->configurationdir();
        $self->{localtop}=$self->{area}->location();
        $self->{buildfilename}="BuildFile";
        $self->_configurationsetup();
        return $self;
}

sub _generateexternals {
        my $self=shift;
        my $outfile=shift;

        # -- specifiy these files for dependency information
        my $depfile=$self->{projconfigdir}."/External_Dependencies";

        # -- get list of dependent files
        my $datadir=$self->{localtop}."/.SCRAM/".$ENV{SCRAM_ARCH};
        $fdir=FileHandle->new();
        opendir $fdir, $datadir; 
        my @depfiles=grep !/^\.\.?$/, readdir $fdir;
        undef $fdir;
        for (my $i=0; $i<=$#depfiles; $i++ ) {
           $depfiles[$i]=$datadir."/".$depfiles[$i];
        } 

        # -- do we need to rebuild?
        if ( SCRAMUtils::dated($outfile,@depfiles) ) {
          print "Configuring Local Area\n";
          # -- open output file
          my $fout=FileHandle->new();
          $fout->open(">".$outfile) or die "Unable to open $outfile for output".
                                        $!."\n";

          # -- print out tool/ version info
          my ($tool,$toolobj,$f,$val,$version);
          foreach $tool ( $self->{toolbox}->tools() ) {
            $version=$self->{toolbox}->defaultversion($tool);
            # default versions
            print $fout "ifdef $tool\n".$tool."_V_".$version."=true\nendif\n";
            # -- set up the different version  -- externals
            foreach $version ( $self->{toolbox}->versions($tool) ) {
             $toolobj=$self->{toolbox}->gettool($tool,$version);
             @deps=$toolobj->getfeature("_externals");
             foreach $d ( @deps ) {
              $d=~tr[A-Z][a-z];
              print $fout "ifdef ".$tool."_V_".$version."\n $d=true\nendif\n";
             }
             # -- tool info
             print $fout "ifdef ".$tool."_V_".$version."\n";
             foreach $f ( $toolobj->features() ) {
              foreach $val ( $toolobj->getfeature($f) ) {
                print $fout "\t".$f." += ".$val."\n";
              }
             }
             print $fout "endif\n";
            }
          }
          # some addittional processing of specific vars
          print $fout 'INCLUDEPATH+=$(addprefix -I,$(INCLUDE))'."\n";
          print $fout 'LDFLAGS+=$(addprefix -L,$(LIBDIR))'."\n";
          print $fout 'CPPFLAGS+=$(addprefix -D,$(CPPDEFINES))'."\n";
          print $fout 'lib+=$(extralib)'."\n";
          print $fout 'LDLIBS+=$(addprefix -l,$(lib))'."\n";
          print $fout 'LDLIBS+=$(addprefix -l,$(REQUIRES))'."\n";

          undef $fout;
          $self->verbose("End Configuration Setup");
        }
}

sub classsetup {
        my $self=shift;
        my $THISDIR=shift;

        my $classmakefile;

        my ($Class, $ClassDir, $bf)=$self->getclass($THISDIR);
        $self->verbose("Class = $Class : ClassDir = $ClassDir for directory ".
                        $THISDIR);

        # -- should we ignore?
        if ( $bf->ignore() ) {
           print "Nothing to be done - empty group\n";
           exit;
        }       


        # -- Create a makefile from the class BuildFile
        my $classbuildfile=$self->{localtop}."/".
                $self->{projconfigdir}."/".$Class."_BuildFile";
        if ( -f $classbuildfile ) {
              $classmakefile=$self->{localtop}."/".$ENV{INTwork}.
                                        "/".$Class."_makefile.mk";
              if ( SCRAMUtils::dated($classmakefile, $classbuildfile) ) {
                # -- generate the new makefile if out of date
                $self->verbose("Generating $classmakefile from".
                                                " $classbuildfile");
                my $classbf=BuildSystem::BuildFile->new($self->{area});
                undef $ENV{LatestBuildFile}; # gets set by BuildFile
                $classbf->GenerateMakefile($classbuildfile, $classmakefile);
                undef $ENV{LatestBuildFile}; # we dont want this included in the
                                             # hierarchy
              }
        }
        else {
           # -- No BuildFile - maybe its old style makefile
              $classmakefile=$self->{localtop}."/".
              $self->{projconfigdir}."/".$Class."_makefile.mk";
              if ( ! -f $classmakefile ) {
                   $self->error("Unable to find matching ".$Class.
                                "_BuildFile or ".$Class."_makefile.mk");
              }
        }
        # -- set LatestBuildFile
        if ( $bf->buildfile() ne "" ) {
          $ENV{LatestBuildFile}=$bf->buildfile();
        }
        else {
          $ENV{LatestBuildFile}=$self->{topbf}->buildfile();
        }

        return ($Class,$ClassDir,$classmakefile);
}

sub _configurationsetup {
        my $self=shift;

        # -- set working directory
        $self->{workdir}=$ENV{INTwork};
        $self->{fullworkdir}=$self->{localtop}."/".$self->{workdir};

        # -- make working directory
        chdir $self->{localtop};
        AddDir::adddir($self->{workdir});

        # -- generate tool info
        $self->_generateexternals($self->{fullworkdir}."/clientmakefile");

        # -- process project BuildFile
        $self->_topbuildfile();
}

sub BuildDir {
        my $self=shift;
        my $THISDIR=shift;
        my @Targets=@_;
        my $DefaultBuildFile="";

        # -- Create working directory
        my $workdir=$self->{workdir}."/".$THISDIR;
        chdir $self->{localtop};
        AddDir::adddir($workdir);
        $ENV{workdir}=$workdir;
        my $fullworkdir=$self->{localtop}."/".$ENV{workdir};
        chdir $fullworkdir || die "Unable to enter working directory $!";

        # -- setup Class specifics
        ($Class,$ClassDir,$classmakefile)=$self->classsetup($THISDIR);
        $ENV{classmakefile}=$classmakefile;
        $ENV{Class}=$Class;
        $ENV{ClassDir}=$ClassDir;
        $DefaultBuildFile=$ENV{classmakefile};
        $ENV{DefaultBuildFile}=$DefaultBuildFile;
        

        # -- Set up some other useful variables for the Build
        # set variables listing directories/files available
        my $fh=FileHandle->new();
        opendir $fh, "$self->{localtop}/$THISDIR";
        my @allfiles= grep !/^\.\.?$/, readdir $fh;
        undef $fh;
        foreach $file ( @allfiles ) {
         if ( -d "$self->{localtop}/$THISDIR/$file" ) { 
           $ENV{SCRAM_AVAILDIRS}=$ENV{SCRAM_AVAILDIRS}." ".$file;
         }
         else {
           $ENV{SCRAM_AVAILFILES}=$ENV{SCRAM_AVAILFILES}." ".$file;
         }
        }
        my $targetnumber=$#Targets;
        $ENV{"MAKETARGETS"}="";
        foreach $word ( @Targets ) {
         if ( $word=~/.*=.*/ ) { # if we have an assignment it cant be a target
           $targetnumber--; 
         }
         else {
          # set some variables for use in makefiles
          $ENV{"MAKETARGET_".$word}=$word;
          if ( $ENV{"MAKETARGETS"} ne "" ) {
            $ENV{"MAKETARGETS"}=$ENV{"MAKETARGETS"}." ".$word;
          }
          else {
            $ENV{"MAKETARGETS"}=$word;
          }
         }
        }

       # -- If target not specified default to the class name target
       if ( $targetnumber == -1 ) {
        push @Targets,$Class;
       }

    $ENV{DefaultMakefile}="$ENV{TOOL_HOME}/basics.mk";

    $SCRAM_GROUPSDIR=$self->{localtop}."/".$self->{projconfigdir}."/groups.mk";
    if ( -f $SCRAM_GROUPSDIR ) {
      $ENV{SCRAM_GROUPSDIR}=$SCRAM_GROUPSDIR;
    }

    # Do a datestamp check so that make will build files that have changed 
    # rather than just those which are older than their dependencies
    # The main build here
    $rv=system("gmake","--no-print-directory","-r","-k","-f","$ENV{DefaultMakefile}","-I$ENV{TOOL_HOME}",datestamp_config);
    $rv=system("gmake","--no-print-directory","-r","-k","-f","$ENV{DefaultMakefile}","-I$ENV{TOOL_HOME}",datestamp, @Targets);
    return $rv/256; # return the exit status of gmake
}

sub getclass {
    my $self=shift;
    my $dirname = shift;
    my $Class="DEFAULT";
    my $ClassDir="";
        
    #return if $dirname eq "";
    @DIRA=split /\//, $dirname;

    my $thispath=".";
    # -- construct all class buildfiles in the path
    for ( $i=0; $i<=$#DIRA; $i++ ) {
        #$thispath=(($thispath eq "")?$DIRA[$i]:$thispath."/".$DIRA[$i]);
        $thispath=$thispath."/".$DIRA[$i];
        if ( ! exists $self->{pathbf}{$thispath} ) {
          $self->verbose("Initialising BuildFile in $thispath");
          $self->{pathbf}{$thispath}=$self->_startbuildfile($thispath);
        }
        # -- check class overriden by BuildFile
        if ( defined $self->{pathbf}{$thispath}->classname() ) {
                $Class=$self->{pathbf}{$thispath}->classname();
                $ClassDir=$thispath;
        }
        else {
          # -- sort it out from classpath directives
          foreach $BlockClassA ( @{$self->{LoBCA}} ) {
           foreach $elem ( @$BlockClassA ) {
            if ( $elem=~/^$DIRA[$i]\+/ ) {
                $elem=~s/^$DIRA[$i]//;
            }
            if ( $elem=~/^\+/ ) {
                ($Class=$elem)=~s/^\+//;
                $ClassDir=$thispath;
            }
          }
         }
        }
    }
    # -- default case
    if ( $ClassDir eq "" ) {
      if ( ! defined $self->{pathbf}{'.'}) {
          $self->{pathbf}{'.'}=$self->_startbuildfile(".");
          $self->verbose("DEFAULT class initialised : ".$self->{pathbf}{'.'});
      }
      $ClassDir=".";
    }

    # -- retunrs
    ($ClassDir_c=$ClassDir)=~s/^\.\///;
    return ( $Class, $ClassDir_c, $self->{pathbf}{$ClassDir});
}

#
# Check to see if the buildfile is local or in the release area and
# parse appropriately
#
sub _startbuildfile {
         my $self=shift;
         my $classdir=shift;

         my $bf=BuildSystem::BuildFile->new($self->{area});
         my $thisfile="$classdir/$self->{buildfilename}";

         if ( -e $self->{localtop}."/".$thisfile ) {
            $bf->buildfile($self->{localtop}."/".$thisfile);
            $bf->ParseBuildFile($self->{localtop}, $classdir, 
                                $self->{buildfilename});
         }
         elsif ( -e $ENV{RELEASETOP}."/".$thisfile ) {
            $bf->buildfile("$ENV{RELEASETOP}/$thisfile");
            $bf->ParseBuildFile($ENV{RELEASETOP}, $classdir, 
                                                $slef->{buildfilename});
         }
         return $bf;
}

sub _topbuildfile {
    my $self=shift;

    # -- Analyse project buildfile if it exists
    $self->{topbf}=BuildSystem::BuildFile->new($self->{area}); 

    # -- generate top level makefile
    $self->{topbf}->buildfile($self->{localtop}."/".$self->{projconfigdir}
                ."/".$self->{buildfilename});
    $self->{topbf}->ParseBuildFile($self->{localtop},
                        $self->{projconfigdir},$self->{buildfilename}); 

    my @ClassPaths=split /:/, $self->{topbf}->BlockClassPath();
    foreach $BClassPath ( @ClassPaths ) {
      next if ( $BClassPath eq "");
      push @{$self->{LoBCA}}, [ split /\//, $BClassPath ];
    }

}
Revision:	1.5
Committed:	Fri Sep 15 11:18:21 2000 UTC (24 years, 7 months ago) by williamc
Content type:	text/plain
Branch:	MAIN
Changes since 1.4:	+140 -76 lines
Log Message:	updates to setup environment
#	User	Rev	Content
1	williamc	1.2	#
2			#
3			# Interface
4			# ---------
5	williamc	1.3	# new(ConfigArea) : A new BuildSetup
6	williamc	1.2	# BuildSetup(directory,targets) : prepare the ground for a build and build
7			# getclass(directory) : return (Class, ClassDir, BuildFileobject)
8			# associated with directory
9	williamc	1.4	# setup(dir)
10	williamc	1.2
11			package BuildSystem::BuildSetup;
12			require 5.004;
13			use Utilities::Verbose;
14			use Utilities::SCRAMUtils;
15			use BuildSystem::BuildFile;
16			use Utilities::AddDir;
17			@ISA=qw(Utilities::Verbose);
18
19			sub new {
20			my $class=shift;
21			my $self={};
22			bless $self,$class;
23	williamc	1.3	$self->{area}=shift;
24			$self->{toolbox}=$self->{area}->toolbox();
25			$self->{projconfigdir}=$self->{area}->configurationdir();
26			$self->{localtop}=$self->{area}->location();
27	williamc	1.5	$self->{buildfilename}="BuildFile";
28			$self->_configurationsetup();
29	williamc	1.2	return $self;
30			}
31
32			sub _generateexternals {
33			my $self=shift;
34			my $outfile=shift;
35
36			# -- specifiy these files for dependency information
37	williamc	1.3	my $depfile=$self->{projconfigdir}."/External_Dependencies";
38	williamc	1.2
39			# -- get list of dependent files
40	williamc	1.3	my $datadir=$self->{localtop}."/.SCRAM/".$ENV{SCRAM_ARCH};
41	williamc	1.2	$fdir=FileHandle->new();
42			opendir $fdir, $datadir;
43			my @depfiles=grep !/^\.\.?$/, readdir $fdir;
44			undef $fdir;
45			for (my $i=0; $i<=$#depfiles; $i++ ) {
46			$depfiles[$i]=$datadir."/".$depfiles[$i];
47			}
48
49			# -- do we need to rebuild?
50			if ( SCRAMUtils::dated($outfile,@depfiles) ) {
51			print "Configuring Local Area\n";
52			# -- open output file
53			my $fout=FileHandle->new();
54			$fout->open(">".$outfile) or die "Unable to open $outfile for output".
55			$!."\n";
56
57			# -- print out tool/ version info
58			my ($tool,$toolobj,$f,$val,$version);
59			foreach $tool ( $self->{toolbox}->tools() ) {
60			$version=$self->{toolbox}->defaultversion($tool);
61			# default versions
62			print $fout "ifdef $tool\n".$tool."_V_".$version."=true\nendif\n";
63			# -- set up the different version -- externals
64			foreach $version ( $self->{toolbox}->versions($tool) ) {
65			$toolobj=$self->{toolbox}->gettool($tool,$version);
66			@deps=$toolobj->getfeature("_externals");
67			foreach $d ( @deps ) {
68			$d=~tr[A-Z][a-z];
69			print $fout "ifdef ".$tool."_V_".$version."\n $d=true\nendif\n";
70			}
71			# -- tool info
72			print $fout "ifdef ".$tool."_V_".$version."\n";
73			foreach $f ( $toolobj->features() ) {
74			foreach $val ( $toolobj->getfeature($f) ) {
75			print $fout "\t".$f." += ".$val."\n";
76			}
77			}
78			print $fout "endif\n";
79			}
80			}
81			# some addittional processing of specific vars
82			print $fout 'INCLUDEPATH+=$(addprefix -I,$(INCLUDE))'."\n";
83			print $fout 'LDFLAGS+=$(addprefix -L,$(LIBDIR))'."\n";
84			print $fout 'CPPFLAGS+=$(addprefix -D,$(CPPDEFINES))'."\n";
85			print $fout 'lib+=$(extralib)'."\n";
86			print $fout 'LDLIBS+=$(addprefix -l,$(lib))'."\n";
87			print $fout 'LDLIBS+=$(addprefix -l,$(REQUIRES))'."\n";
88
89			undef $fout;
90	williamc	1.3	$self->verbose("End Configuration Setup");
91	williamc	1.2	}
92			}
93
94	williamc	1.4	sub classsetup {
95			my $self=shift;
96			my $THISDIR=shift;
97
98			my $classmakefile;
99
100			my ($Class, $ClassDir, $bf)=$self->getclass($THISDIR);
101	williamc	1.5	$self->verbose("Class = $Class : ClassDir = $ClassDir for directory ".
102			$THISDIR);
103	williamc	1.4
104			# -- should we ignore?
105			if ( $bf->ignore() ) {
106			print "Nothing to be done - empty group\n";
107			exit;
108			}
109
110	williamc	1.5
111	williamc	1.4	# -- Create a makefile from the class BuildFile
112			my $classbuildfile=$self->{localtop}."/".
113			$self->{projconfigdir}."/".$Class."_BuildFile";
114			if ( -f $classbuildfile ) {
115			$classmakefile=$self->{localtop}."/".$ENV{INTwork}.
116			"/".$Class."_makefile.mk";
117			if ( SCRAMUtils::dated($classmakefile, $classbuildfile) ) {
118			# -- generate the new makefile if out of date
119			$self->verbose("Generating $classmakefile from".
120			" $classbuildfile");
121			my $classbf=BuildSystem::BuildFile->new($self->{area});
122			undef $ENV{LatestBuildFile}; # gets set by BuildFile
123			$classbf->GenerateMakefile($classbuildfile, $classmakefile);
124			undef $ENV{LatestBuildFile}; # we dont want this included in the
125			# hierarchy
126			}
127			}
128			else {
129			# -- No BuildFile - maybe its old style makefile
130			$classmakefile=$self->{localtop}."/".
131			$self->{projconfigdir}."/".$Class."_makefile.mk";
132			if ( ! -f $classmakefile ) {
133			$self->error("Unable to find matching ".$Class.
134			"_BuildFile or ".$Class."_makefile.mk");
135			}
136			}
137	williamc	1.5	# -- set LatestBuildFile
138			if ( $bf->buildfile() ne "" ) {
139			$ENV{LatestBuildFile}=$bf->buildfile();
140			}
141			else {
142			$ENV{LatestBuildFile}=$self->{topbf}->buildfile();
143			}
144
145	williamc	1.4	return ($Class,$ClassDir,$classmakefile);
146			}
147
148	williamc	1.5	sub _configurationsetup {
149			my $self=shift;
150
151			# -- set working directory
152			$self->{workdir}=$ENV{INTwork};
153			$self->{fullworkdir}=$self->{localtop}."/".$self->{workdir};
154
155			# -- make working directory
156			chdir $self->{localtop};
157			AddDir::adddir($self->{workdir});
158
159			# -- generate tool info
160			$self->_generateexternals($self->{fullworkdir}."/clientmakefile");
161
162			# -- process project BuildFile
163			$self->_topbuildfile();
164			}
165
166			sub BuildDir {
167	williamc	1.4	my $self=shift;
168			my $THISDIR=shift;
169			my @Targets=@_;
170			my $DefaultBuildFile="";
171
172			# -- Create working directory
173	williamc	1.5	my $workdir=$self->{workdir}."/".$THISDIR;
174	williamc	1.4	chdir $self->{localtop};
175			AddDir::adddir($workdir);
176			$ENV{workdir}=$workdir;
177			my $fullworkdir=$self->{localtop}."/".$ENV{workdir};
178			chdir $fullworkdir \|\| die "Unable to enter working directory $!";
179
180			# -- setup Class specifics
181			($Class,$ClassDir,$classmakefile)=$self->classsetup($THISDIR);
182			$ENV{classmakefile}=$classmakefile;
183			$ENV{Class}=$Class;
184			$ENV{ClassDir}=$ClassDir;
185			$DefaultBuildFile=$ENV{classmakefile};
186			$ENV{DefaultBuildFile}=$DefaultBuildFile;
187	williamc	1.2
188	williamc	1.4
189	williamc	1.5	# -- Set up some other useful variables for the Build
190			# set variables listing directories/files available
191			my $fh=FileHandle->new();
192			opendir $fh, "$self->{localtop}/$THISDIR";
193			my @allfiles= grep !/^\.\.?$/, readdir $fh;
194			undef $fh;
195			foreach $file ( @allfiles ) {
196			if ( -d "$self->{localtop}/$THISDIR/$file" ) {
197			$ENV{SCRAM_AVAILDIRS}=$ENV{SCRAM_AVAILDIRS}." ".$file;
198			}
199			else {
200			$ENV{SCRAM_AVAILFILES}=$ENV{SCRAM_AVAILFILES}." ".$file;
201			}
202	williamc	1.4	}
203	williamc	1.5	my $targetnumber=$#Targets;
204			$ENV{"MAKETARGETS"}="";
205			foreach $word ( @Targets ) {
206			if ( $word=~/.=./ ) { # if we have an assignment it cant be a target
207			$targetnumber--;
208			}
209			else {
210			# set some variables for use in makefiles
211			$ENV{"MAKETARGET_".$word}=$word;
212			if ( $ENV{"MAKETARGETS"} ne "" ) {
213			$ENV{"MAKETARGETS"}=$ENV{"MAKETARGETS"}." ".$word;
214			}
215			else {
216			$ENV{"MAKETARGETS"}=$word;
217			}
218			}
219	williamc	1.3	}
220	williamc	1.2
221	williamc	1.5	# -- If target not specified default to the class name target
222			if ( $targetnumber == -1 ) {
223	williamc	1.2	push @Targets,$Class;
224	williamc	1.5	}
225	williamc	1.2
226			$ENV{DefaultMakefile}="$ENV{TOOL_HOME}/basics.mk";
227
228	williamc	1.3	$SCRAM_GROUPSDIR=$self->{localtop}."/".$self->{projconfigdir}."/groups.mk";
229	williamc	1.2	if ( -f $SCRAM_GROUPSDIR ) {
230			$ENV{SCRAM_GROUPSDIR}=$SCRAM_GROUPSDIR;
231			}
232
233			# Do a datestamp check so that make will build files that have changed
234			# rather than just those which are older than their dependencies
235			# The main build here
236			$rv=system("gmake","--no-print-directory","-r","-k","-f","$ENV{DefaultMakefile}","-I$ENV{TOOL_HOME}",datestamp_config);
237			$rv=system("gmake","--no-print-directory","-r","-k","-f","$ENV{DefaultMakefile}","-I$ENV{TOOL_HOME}",datestamp, @Targets);
238			return $rv/256; # return the exit status of gmake
239			}
240
241			sub getclass {
242			my $self=shift;
243			my $dirname = shift;
244			my $Class="DEFAULT";
245			my $ClassDir="";
246
247			#return if $dirname eq "";
248			@DIRA=split /\//, $dirname;
249
250	williamc	1.5	my $thispath=".";
251			# -- construct all class buildfiles in the path
252	williamc	1.2	for ( $i=0; $i<=$#DIRA; $i++ ) {
253	williamc	1.5	#$thispath=(($thispath eq "")?$DIRA[$i]:$thispath."/".$DIRA[$i]);
254			$thispath=$thispath."/".$DIRA[$i];
255			if ( ! exists $self->{pathbf}{$thispath} ) {
256			$self->verbose("Initialising BuildFile in $thispath");
257			$self->{pathbf}{$thispath}=$self->_startbuildfile($thispath);
258			}
259			# -- check class overriden by BuildFile
260			if ( defined $self->{pathbf}{$thispath}->classname() ) {
261			$Class=$self->{pathbf}{$thispath}->classname();
262	williamc	1.2	$ClassDir=$thispath;
263			}
264			else {
265	williamc	1.5	# -- sort it out from classpath directives
266			foreach $BlockClassA ( @{$self->{LoBCA}} ) {
267			foreach $elem ( @$BlockClassA ) {
268			if ( $elem=~/^$DIRA[$i]\+/ ) {
269			$elem=~s/^$DIRA[$i]//;
270	williamc	1.2	}
271	williamc	1.5	if ( $elem=~/^\+/ ) {
272			($Class=$elem)=~s/^\+//;
273	williamc	1.2	$ClassDir=$thispath;
274			}
275			}
276	williamc	1.5	}
277	williamc	1.2	}
278			}
279	williamc	1.5	# -- default case
280			if ( $ClassDir eq "" ) {
281			if ( ! defined $self->{pathbf}{'.'}) {
282			$self->{pathbf}{'.'}=$self->_startbuildfile(".");
283			$self->verbose("DEFAULT class initialised : ".$self->{pathbf}{'.'});
284			}
285			$ClassDir=".";
286			}
287
288			# -- retunrs
289			($ClassDir_c=$ClassDir)=~s/^\.\///;
290			return ( $Class, $ClassDir_c, $self->{pathbf}{$ClassDir});
291			}
292
293			#
294			# Check to see if the buildfile is local or in the release area and
295			# parse appropriately
296			#
297			sub _startbuildfile {
298			my $self=shift;
299			my $classdir=shift;
300
301			my $bf=BuildSystem::BuildFile->new($self->{area});
302			my $thisfile="$classdir/$self->{buildfilename}";
303
304			if ( -e $self->{localtop}."/".$thisfile ) {
305			$bf->buildfile($self->{localtop}."/".$thisfile);
306			$bf->ParseBuildFile($self->{localtop}, $classdir,
307			$self->{buildfilename});
308			}
309			elsif ( -e $ENV{RELEASETOP}."/".$thisfile ) {
310			$bf->buildfile("$ENV{RELEASETOP}/$thisfile");
311			$bf->ParseBuildFile($ENV{RELEASETOP}, $classdir,
312			$slef->{buildfilename});
313			}
314			return $bf;
315			}
316
317			sub _topbuildfile {
318			my $self=shift;
319
320			# -- Analyse project buildfile if it exists
321			$self->{topbf}=BuildSystem::BuildFile->new($self->{area});
322
323			# -- generate top level makefile
324			$self->{topbf}->buildfile($self->{localtop}."/".$self->{projconfigdir}
325			."/".$self->{buildfilename});
326			$self->{topbf}->ParseBuildFile($self->{localtop},
327			$self->{projconfigdir},$self->{buildfilename});
328
329			my @ClassPaths=split /:/, $self->{topbf}->BlockClassPath();
330			foreach $BClassPath ( @ClassPaths ) {
331			next if ( $BClassPath eq "");
332			push @{$self->{LoBCA}}, [ split /\//, $BClassPath ];
333			}
334
335	williamc	1.2	}