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root/cvsroot/COMP/SCRAM/src/Configuration/ConfigArea.pm

Comparing COMP/SCRAM/src/Configuration/ConfigArea.pm (file contents):
Revision 1.10 by williamc, Thu Feb 24 09:55:13 2000 UTC vs.
Revision 1.37 by muzaffar, Fri Oct 14 14:11:42 2011 UTC

#	Line 1 | Line 1
1	–	#
2	–	# ConfigArea.pm
3	–	#
4	–	# Originally Written by Christopher Williams
5	–	#
6	–	# Description
7	–	# -----------
8	–	# creates and manages a configuration area
9	–	#
10	–	# Options
11	–	# -------
12	–	# ConfigArea_location
13	–	# ConfigArea_name
14	–	#
15	–	# Interface
16	–	# ---------
17	–	# new(ActiveConfig)             : A new ConfigArea object
18	–	# setup()                       : setup the configuration area
19	–	# location([dir])               : set/return the location of the area
20	–	# version([version])            : set/return the version of the area
21	–	# name([name])                  : set/return the name of the area
22	–	# store(location)               : store data in file location
23	–	# restore(location)             : restore data from file location
24	–	# meta()                        : return a description string of the area
25	–	# addconfigitem(url)            : add a new item to the area
26	–	# configitem(@keys)             : return a list of fig items that match
27	–	#                                 the keys - all if left blank
28	–	# parentstore()                 : set/return the parent ObjectStore
29	–	# basearea(ConfigArea)          : Set/Get the base area
30	–	# freebase()                    : Remove any link to a base area
31	–	# bootstrapfromlocation([location]): bootstrap the object based on location.
32	–	#                                 no location specified - cwd used
33	–	# searchlocation([startdir])    : returns the location directory. search starts
34	–	#                                 from cwd if not specified
35	–	# defaultdirname()              : return the default directory name string
36	–	# copy(location)                : make a copy of the current area at the
37	–	#                                 specified location - defaults to cwd/default
38	–	#                                 if not specified . ConfigArea_name,
39	–	#                                 ConfigArea_location also override .
40	–	#                                 Return an object representing the area
41	–	# satellite()                   : make a satellite area based on $self
42	–	# arch([archobj])               : Set/get the architecture object
43	–	# structure(name)               : return the object corresponding to the
44	–	#                                 structure name
45	–	# structurelist()               : return list of structure objectS
46	–	# downloadtotop(dir,url)        : download the url to a dir in the config area
47	–	#
48	–
1		package Configuration::ConfigArea;
50	–	use ActiveDoc::ActiveDoc;
2		require 5.004;
3		use Utilities::AddDir;
4	<	use ObjectUtilities::ObjectStore;
54	<	use Configuration::ConfigStore;
55	<	use Configuration::ActiveDoc_arch;
4	>	use Utilities::Verbose;
5		use Cwd;
6	<	@ISA=qw(Configuration::ActiveDoc_arch ObjectUtilities::StorableObject);
58	<
59	<	sub init {
60	<	my $self=shift;
61	<
62	<	$self->newparse("init");
63	<	$self->newparse("download");
64	<	$self->newparse("setup");
65	<	$self->newparse("setup_tools");
66	<	$self->addarchtags("setup_tools");
67	<	$self->addarchtags("setup");
68	<	$self->addtag("init","project",\&Project_Start,$self,
69	<	\&Project_text,$self,"", $self );
70	<	$self->addurltags("download");
71	<	$self->addtag("download","download",\&Download_Start,$self,
72	<	"", $self, "",$self);
73	<	$self->addtag("download","use",\&Use_download_Start,$self,
74	<	"", $self, "",$self);
75	<	$self->addurltags("setup");
76	<	$self->addtag("setup_tools","use",\&Use_Start,$self, "", $self, "",$self);
77	<	$self->addtag("setup","structure",\&Structure_Start,$self,
78	<	"", $self, "",$self);
79	<
80	<	# data init
81	<	$self->{admindir}=".SCRAM";
82	<	}
83	<
84	<	sub basearea {
85	<	my $self=shift;
86	<
87	<	my $area;
88	<	if ( @_ ) {
89	<	$area=shift;
90	<	$self->config()->store($area,"BaseArea");
91	<	}
92	<	else {
93	<	($area)=$self->config()->restore("BaseArea");
94	<	}
95	<	return $area;
96	<	}
6	>	@ISA=qw(Utilities::Verbose);
7
8	<	sub freebase {
9	<	my $self=shift;
10	<	$self->config()->delete("BaseArea");
8	>	sub new {
9	>	my $class=shift;
10	>	my $self={};
11	>	bless $self, $class;
12	>	$self->{admindir}=".SCRAM";
13	>	$self->{configurationdir} = "config";
14	>	$self->archname($ENV{SCRAM_ARCH});
15	>	return $self;
16	>	}
17	>
18	>	sub toolcachename
19	>	{
20	>	my $self=shift;
21	>	return ($self->archdir()."/ToolCache.db.gz");
22	>	}
23	>
24	>	sub projectcachename
25	>	{
26	>	my $self=shift;
27	>	return ($self->archdir()."/ProjectCache.db.gz");
28	>	}
29	>
30	>	sub symlinks {
31	>	my $self=shift;
32	>	if (@_) {$self->{symlinks}=shift;}
33	>	return $self->{symlinks};
34	>	}
35	>
36	>	sub calchksum {
37	>	my $self=shift;
38	>	my $dir=$self->location()."/".$self->configurationdir();
39	>	push @INC,$dir;
40	>	require SCRAM::Plugins::ProjectChkSum;
41	>	my $sum=&SCRAM::Plugins::ProjectChkSum::chksum($dir);
42	>	pop @INC;
43	>	return $sum;
44		}
45
46	<	sub defaultdirname {
46	>	sub configchksum {
47		my $self=shift;
48	<	my $name=$self->name();
49	<	my $vers=$self->version();
107	<	$vers=~s/^$name\_//;
108	<	$name=$name."_".$vers;
109	<	return $name;
48	>	if (@_) {$self->{configchksum}=shift;}
49	>	return $self->{configchksum};
50		}
51
52
53	<	sub setup {
114	<	my $self=shift;
115	<
116	<	# --- find out the location - default is cwd
117	<	my $location=$self->option("ConfigArea_location");
118	<	if ( ! defined $location ) {
119	<	$location=cwd();
120	<	}
121	<	elsif ( $location!~/^\// ) {
122	<	$location=cwd()."/".$location;
123	<	}
124	<
125	<	# --- find area directory name , default name projectname_version
126	<	my $name=$self->option("ConfigArea_name");
127	<	if ( ! defined $name ) {
128	<	$name=$self->defaultdirname();
129	<	}
130	<	$self->location($location."/".$name);
131	<
132	<	# make a new store handler
133	<	$self->_setupstore();
134	<
135	<	# --- download everything first
136	<	$self->parse("download");
137	<
138	<	# --- and parse the setup file
139	<	$self->parse("setup");
140	<	$self->parse("setup_tools");
141	<
142	<	# --- store bootstrap info
143	<	$self->store($self->location()."/".$self->{admindir}."/ConfigArea.dat");
144	<
145	<	# --- store self in original database
146	<	$self->parentconfig()->store($self,"ConfigArea",$self->name(),
147	<	$self->version());
148	<	}
149	<
150	<	sub structure {
53	>	sub name {
54		my $self=shift;
55	<	my $vr=shift;
56	<	return $self->{structures}{$vr};
55	>	@_?$self->{name}=shift
56	>	:$self->{name};
57		}
58
59	<	sub structurelist {
59	>	sub version {
60		my $self=shift;
61	<	return ( keys %{$self->{structures}} );
61	>	@_?$self->{version}=shift
62	>	:$self->{version};
63		}
64
65	<	sub _setupstore {
65	>	sub setup {
66		my $self=shift;
67	<
68	<	# --- make a new ConfigStore at the location and add it to the db list
69	<	my $ad=Configuration::ConfigStore->new($self->location().
70	<	"/".$self->{admindir}, $self->arch());
71	<
72	<	$self->parentconfig($self->config());
73	<	#        $self->config(Configuration::ConfigureStore->new());
74	<	#        $self->config()->db("local",$ad);
75	<	#        $self->config()->db("parent",$self->parentconfig());
76	<	#        $self->config()->policy("cache","local");
77	<	$self->config($ad);
78	<	$self->config()->basedoc($self->parentconfig()->basedoc());
67	>	my $location=shift;
68	>	my $areaname=shift  || undef;
69	>	my $symlinks=shift  || 0;
70	>	my $locarea = shift || undef;
71	>	if ( (! defined $areaname) || ( $areaname eq "" ) ) {
72	>	$areaname=$self->version();
73	>	}
74	>	$self->location($location."/".$areaname);
75	>	$self->symlinks($symlinks);
76	>	if ($self->configchksum() ne "")
77	>	{
78	>	if ((!-defined $locarea) && (-f "${location}/${areaname}/".$self->admindir()."/Environment"))
79	>	{
80	>	$locarea=Configuration::ConfigArea->new();
81	>	$locarea->bootstrapfromlocation("${location}/${areaname}");
82	>	}
83	>	if ((defined $locarea) && ($locarea->configchksum() != $self->configchksum()))
84	>	{
85	>	print "ERROR: Can not setup your current working area for SCRAM_ARCH:$ENV{SCRAM_ARCH}.\n",
86	>	"Your current development area ${location}/${areaname}\n",
87	>	"is using a different ${areaname}/config then the one used for\n",
88	>	$self->releasetop(),".\n";
89	>	exit 1;
90	>	}
91	>	}
92	>	Utilities::AddDir::adddir($self->archdir());
93		}
94
95	<	sub bootstrapfromlocation {
95	>	sub configurationdir {
96		my $self=shift;
97	<
98	<	if ( ! defined $self->location(@_) ) {
181	<	$self->error("Unable to locate the top of local configuration area");
97	>	if ( @_ ) {
98	>	$self->{configurationdir}=shift;
99		}
100	<	print "Found top ".$self->location()."\n";
184	<	$self->_setupstore();
185	<	$self->restore($self->location()."/".$self->{admindir}.
186	<	"/ConfigArea.dat");
100	>	return (defined $self->{configurationdir})?$self->{configurationdir}:undef;
101		}
102
103	<	sub parentconfig {
103	>	sub sourcedir {
104		my $self=shift;
105	<	@_?$self->{parentconfig}=shift
106	<	:$self->{parentconfig};
105	>	if ( @_ ) {
106	>	$self->{sourcedir}=shift;
107	>	}
108	>	return (defined $self->{sourcedir})?$self->{sourcedir}:undef;
109		}
110
111	<	sub store {
111	>	sub releasetop {
112		my $self=shift;
113	<	my $location=shift;
114	<
115	<	my $fh=$self->openfile(">".$location);
116	<	$self->savevar($fh,"location", $self->location());
201	<	$self->savevar($fh,"url", $self->url());
202	<	$self->savevar($fh,"name", $self->name());
203	<	$self->savevar($fh,"version", $self->version());
204	<	$fh->close();
205	<
206	<	$self->_storestructures();
113	>	if ( @_ ) {
114	>	$self->{releasetop}=shift;
115	>	}
116	>	return (defined $self->{releasetop})?$self->{releasetop}:undef;
117		}
118
119	<	sub satellite {
120	<	my $self=shift;
121	<	my $newarea=$self->copy(@_);
122	<	$newarea->_makesatellites();
123	<	return $newarea;
124	<	}
119	>	sub admindir()
120	>	{
121	>	my $self=shift;
122	>
123	>	@_ ? $self->{admindir} = shift
124	>	: $self->{admindir};
125	>	}
126
127	<	sub copy {
127	>	sub bootstrapfromlocation {
128		my $self=shift;
129	<	use File::Basename;
130	<	# create the area
131	<
132	<	my $destination;
222	<	if ( @_ ) {
223	<	$destination=shift;
129	>	my $location = $self->searchlocation(shift);
130	>	my $rv=0;
131	>	if ( ! defined $location) {
132	>	$rv=1;
133		}
134		else {
135	<	my($location,$name)=$self->_defaultoptions();
136	<	$destination=$location."/".$name
135	>	$self->location($location);
136	>	$self->_LoadEnvFile();
137		}
138	<	#AddDir::adddir(dirname($destination)."/".$self->{admindir});
230	<	#AddDir::adddir($destination."/".$self->{admindir});
231	<
232	<	# copy across the admin dir
233	<	$temp=$self->location()."/".$self->{admindir};
234	<	AddDir::copydir($temp,"$destination/".$self->{admindir});
235	<	# create a new object based on the new area
236	<	my $newarea=ref($self)->new($self->parentconfig());
237	<	$newarea->bootstrapfromlocation($destination);
238	<	# save it with the new location info
239	<	$newarea->store($self->location()."/".$self->{admindir}.
240	<	"/ConfigArea.dat");
241	<	return $newarea;
242	<	}
243	<
244	<	sub restore {
245	<	my $self=shift;
246	<	my $location=shift;
247	<
248	<	my $fh=$self->openfile("<".$location);
249	<	my $varhash={};
250	<	$self->restorevars($fh,$varhash);
251	<	if ( ! defined $self->location() ) {
252	<	$self->location($$varhash{"location"});
253	<	}
254	<	$self->_setupstore();
255	<	$self->url($$varhash{"url"});
256	<	$self->name($$varhash{"name"});
257	<	$self->version($$varhash{"version"});
258	<	$fh->close();
259	<
260	<	$self->_restorestructures();
261	<	}
262	<
263	<	sub name {
264	<	my $self=shift;
265	<
266	<	@_?$self->{name}=shift
267	<	:$self->{name};
268	<	}
269	<
270	<	sub version {
271	<	my $self=shift;
272	<
273	<	@_?$self->{version}=shift
274	<	:$self->{version};
138	>	return $rv;
139		}
140
141		sub location {
#	Line 279 | Line 143 | sub location {
143
144		if ( @_ ) {
145		$self->{location}=shift;
146	+	$self->archname($ENV{SCRAM_ARCH});
147		}
148		elsif ( ! defined $self->{location} ) {
149		# try and find the release location
150		$self->{location}=$self->searchlocation();
151	+	if (defined $self->{location})
152	+	{
153	+	$self->archname($ENV{SCRAM_ARCH});
154	+	}
155		}
156		return  $self->{location};
157		}
158
159		sub searchlocation {
160		my $self=shift;
161	<
161	>
162		#start search in current directory if not specified
163		my $thispath;
164	<	@_?$thispath=shift
165	<	:$thispath=cwd();
166	<
164	>	if ( @_ ) {
165	>	$thispath=shift
166	>	}
167	>	else {
168	>	$thispath=cwd();
169	>	}
170	>
171		my $rv=0;
172
173	+	# chop off any files - we only want dirs
174	+	if ( -f $thispath ) {
175	+	$thispath=~s/(.*)\/.*/$1/;
176	+	}
177		Sloop:{
178		do {
179	<	#         print "Searching $thispath\n";
179	>	$self->verbose("Searching $thispath");
180		if ( -e "$thispath/".$self->{admindir} ) {
181	<	#           print "Found\n";
181	>	$self->verbose("Found\n");
182		$rv=1;
183		last Sloop;
184		}
185		} while ( ($thispath=~s/(.*)\/.*/$1/)=~/./ ) };
186	<
186	>
187		return $rv?$thispath:undef;
188		}
189
190	<	sub meta {
190	>	sub archname {
191		my $self=shift;
192	<
193	<	my $string=$self->name()." ".$self->version()." located at :\n  ".
194	<	$self->location;
195	<	}
319	<
320	<	sub configitem {
321	<	my $self=shift;
322	<
323	<	return ($self->config()->find("ConfigItem",@_));
324	<	}
325	<
326	<	sub addconfigitem {
327	<	my $self=shift;
328	<	my $url=shift;
329	<
330	<	my $docref=$self->activatedoc($url);
331	<	# Set up the document
332	<	$docref->setup();
333	<	$docref->save();
334	<	#       $self->config()->storepolicy("local");
335	<	}
336	<
337	<	sub downloadtotop {
338	<	my $self=shift;
339	<	my $url=shift;
340	<	my $dir=shift;
341	<
342	<	# only download once
343	<	if ( ! -e $self->location()."/".$dir ) {
344	<	$self->{urlhandler}->download($url,$self->location()."/".$dir);
345	<	}
346	<	}
347	<
348	<	sub _makesatellites {
349	<	my $self=shift;
350	<	foreach $st ( values %{$self->{structures}} ) {
351	<	$st->setupsatellite()
192	>	if ( @_ ) {
193	>	if (defined $self->{location}) {
194	>	$self->archdir($self->{location}."/".$self->{admindir}."/".$ENV{SCRAM_ARCH});
195	>	}
196		}
197	+	return $ENV{SCRAM_ARCH};
198		}
199
200	<	sub _storestructures {
200	>	sub archdir {
201		my $self=shift;
202	<	foreach $struct ( values %{$self->{structures}} ) {
203	<	$self->config()->store($struct, "Structures", $struct->name());
202	>	if ( @_ ) {
203	>	$self->{archdir}=shift;
204		}
205	+	return $self->{archdir};
206		}
207
208	<	sub _restorestructures {
208	>	sub satellite {
209		my $self=shift;
210	<	my @strs=$self->config()->find("Structures");
211	<	foreach $struct ( @strs ) {
212	<	$struct->parent($self);
213	<	$self->{structures}{$struct->name()}=$struct;
214	<	}
210	>	my $relloc = $self->location();
211	>	my $sat=Configuration::ConfigArea->new();
212	>	$sat->name($self->name());
213	>	$sat->version($self->version());
214	>	$sat->configurationdir($self->configurationdir());
215	>	$sat->sourcedir($self->sourcedir());
216	>	$sat->releasetop($relloc);
217	>	$sat->configchksum($self->configchksum());
218	>	$sat->setup(@_);
219	>	$self->copywithskip($self->archdir(),$sat->archdir(),["InstalledTools","ProjectCache.db.gz","RuntimeCache.db.gz","DirCache.db.gz","MakeData/DirCache","MakeData/DirCache.mk","MakeData/src.mk"]);
220	>	$envfile = $sat->archdir()."/Environment";
221	>	open ( $fh, "> $envfile" ) or  $sat->error("Cannot Open \"$envfile\" file to Save\n $!");
222	>	print $fh "RELEASETOP=$relloc\n";
223	>	close($fh);
224	>	my $devconf = $sat->location()."/".$sat->configurationdir();
225	>	my $relconf = $self->location()."/".$self->configurationdir();
226	>	if (!-d $devconf)
227	>	{
228	>	$self->copywithskip($relconf,$devconf,['toolbox']);
229	>	}
230	>	$envfile = $sat->location()."/".$self->{admindir}."/Environment";
231	>	if (! -f $envfile)
232	>	{
233	>	$sat->save ();
234	>	}
235	>	Utilities::AddDir::copydir("${relconf}/toolbox/$ENV{SCRAM_ARCH}","${devconf}/toolbox/$ENV{SCRAM_ARCH}");
236	>	Utilities::AddDir::adddir ($sat->location()."/".$sat->sourcedir());
237	>	return $sat;
238	>	}
239	>
240	>	sub copywithskip {
241	>	my $self=shift;
242	>	my $src=shift;
243	>	my $des=shift;
244	>	my $filetoskip=shift || [];
245	>	my $rv=1;
246	>	if ( $src ne $des )
247	>	{
248	>	if ( -d $src )
249	>	{
250	>	my $fs=[];
251	>	foreach my $f (@$filetoskip) {push @$fs,"${src}/${f}";}
252	>	Utilities::AddDir::copydirwithskip($src,$des,$fs);
253	>	$rv=0;
254	>	}
255	>	}
256	>	return $rv;
257		}
258
259	<	sub _defaultoptions {
259	>	sub copyenv {
260		my $self=shift;
373	–	my $name;
374	–	my $location;
375	–
376	–	# --- find out the location - default is cwd
377	–	$location=$self->option("ConfigArea_location");
378	–	if ( ! defined $location ) {
379	–	$location=cwd();
380	–	}
381	–	elsif ( $location!~/^\// ) {
382	–	$location=cwd()."/".$location;
383	–	}
384	–
385	–	# --- find area directory name , default name projectname_version
386	–	$name=$self->option("ConfigArea_name");
387	–	if ( ! defined $name ) {
388	–	$name=$self->defaultdirname();
389	–	}
390	–	return ($location,$name);
391	–	}
392	–	# -------------- Tags ---------------------------------
393	–	# -- init parse
394	–	sub Project_Start {
395	–	my $self=shift;
396	–	my $name=shift;
261		my $hashref=shift;
262	<
263	<	$self->checktag($name,$hashref,'name');
264	<	$self->checktag($name,$hashref,'version');
401	<
402	<	$self->name($$hashref{'name'});
403	<	$self->version($$hashref{'version'});
404	<	}
405	<
406	<
407	<	sub Project_text {
408	<	my $self=shift;
409	<	my $name=shift;
410	<	my $string=shift;
411	<
412	<	print $string;
413	<	}
414	<
415	<	# ---- download parse
416	<
417	<	sub Download_Start {
418	<	my $self=shift;
419	<	my $name=shift;
420	<	my $hashref=shift;
421	<
422	<	$self->checktag($name,$hashref,'url');
423	<	$self->checktag($name,$hashref,'location');
424	<	if ( $$hashref{'location'}!~/^\w/ ) {
425	<	$self->parseerror("location must start with an".
426	<	" alphanumeric character");
262	>
263	>	foreach $elem ( keys %{$self->{ENV}} ) {
264	>	$$hashref{$elem}=$self->{ENV}{$elem};
265		}
428	–	print "Downloading .... ".$$hashref{'url'}."\n";
429	–	$self->downloadtotop($$hashref{'url'},$$hashref{'location'});
266		}
267
268	<	sub Use_download_Start {
268	>	sub arch {
269		my $self=shift;
270	<	my $name=shift;
435	<	my $hashref=shift;
436	<
437	<	$self->checktag($name,$hashref,'url');
438	<	print "Downloading .... ".$$hashref{'url'}."\n";
439	<	$self->getfile($$hashref{'url'});
270	>	return $ENV{SCRAM_ARCH};
271		}
272
273	<	# --- setup parse
443	<
444	<	sub Structure_Start {
273	>	sub save {
274		my $self=shift;
275	<	my $name=shift;
447	<	my $hashref=shift;
448	<
449	<	$self->checktag($name,$hashref,'name');
450	<	if ( !( exists $$hashref{'type'}) || ( exists $$hashref{'url'}) ) {
451	<	$self->parseerror("No url or type given in <$name> tag");
452	<	}
453	<	if ( ! exists $self->{structures}{$$hashref{'name'}} ) {
454	<	if ( exists $$hashref{'type'}) {
455	<	# create a new object of the specified type
456	<	eval "require $$hashref{'type'} ";
457	<	if  ( $@ ) {
458	<	$self->parseerror("Unable to instantiate type=".
459	<	$$hashref{'type'}." in <$name> .".$@);
460	<	}
461	<	$self->{structures}{$$hashref{'name'}}=
462	<	$$hashref{'type'}->new($self->config());
463	<	$self->{structures}{$$hashref{'name'}}->name($$hashref{'name'});
464	<	$self->{structures}{$$hashref{'name'}}->parent($self);
465	<	$self->{structures}{$$hashref{'name'}}->vars($hashref);
466	<	}
467	<	else { # its an activedoc
468	<	$self->{structures}{$$hashref{'name'}}=
469	<	$self->activatedoc($$hashref{'url'});
470	<	}
471	<	$self->{structures}{$$hashref{'name'}}->setupbase();
472	<	}
473	<	else {
474	<	$self->parseerror("Multiply defined Structure - ".
475	<	$$hashref{'name'});
476	<	}
275	>	$self->_SaveEnvFile();
276		}
277
278	<	sub Use_Start {
480	<	my $self=shift;
481	<	my $name=shift;
482	<	my $hashref=shift;
483	<
484	<	$self->checktag($name,$hashref,'url');
485	<	$self->addconfigitem($$hashref{'url'});
486	<	}
278	>	# ---- support routines
279
280	+	sub _SaveEnvFile
281	+	{
282	+	my $self=shift;
283	+
284	+	my $fh;
285	+	my $envfile = $self->location()."/".$self->{admindir}."/Environment";
286	+	open ( $fh, "> $envfile" ) or  $self->error("Cannot Open \"$envfile\" file to Save\n $!");
287	+
288	+	print $fh "SCRAM_PROJECTNAME=".$self->name()."\n";
289	+	print $fh "SCRAM_PROJECTVERSION=".$self->version()."\n";
290	+	print $fh "SCRAM_CONFIGDIR=".$self->configurationdir()."\n";
291	+	print $fh "SCRAM_SOURCEDIR=".$self->sourcedir()."\n";
292	+	print $fh "SCRAM_SYMLINKS=",$self->symlinks(),"\n";
293	+	print $fh "SCRAM_CONFIGCHKSUM=",$self->configchksum(),"\n";
294	+	close($fh);
295	+
296	+	# Set the default permissions (-rw-r--r--):
297	+	my $filemode = 0644;
298	+	chmod $filemode, $self->location()."/".$self->{admindir}."/Environment";
299	+	}
300	+
301	+	sub _LoadEnvFile
302	+	{
303	+	my $self=shift;
304	+
305	+	my $fh;
306	+	my $envfile = $self->location()."/".$self->{admindir}."/Environment";
307	+	open ( $fh, "< $envfile" ) or $self->error("Cannot open \"$envfile\" file for reading.\n $!");
308	+	while ( <$fh> )
309	+	{
310	+	chomp;
311	+	next if /^#/;
312	+	next if /^\s*$/ ;
313	+	($name, $value)=split /=/;
314	+	eval "\$self->{ENV}{${name}}=\"$value\"";
315	+	}
316	+	close($fh);
317	+	$envfile = $self->archdir()."/Environment";
318	+	if (-f $envfile)
319	+	{
320	+	open ( $fh, "< $envfile" ) or $self->error("Cannot open \"$envfile\" file for reading.\n $!");
321	+	while ( <$fh> )
322	+	{
323	+	chomp;
324	+	next if /^#/;
325	+	next if /^\s*$/ ;
326	+	($name, $value)=split /=/;
327	+	eval "\$self->{ENV}{${name}}=\"$value\"";
328	+	}
329	+	close($fh);
330	+	}
331	+
332	+	# -- set internal variables appropriately
333	+	if ( defined $self->{ENV}{"SCRAM_PROJECTNAME"} )
334	+	{
335	+	$self->name($self->{ENV}{"SCRAM_PROJECTNAME"});
336	+	}
337	+	if ( defined $self->{ENV}{"SCRAM_SYMLINKS"} )
338	+	{
339	+	$self->symlinks($self->{ENV}{"SCRAM_SYMLINKS"});
340	+	}
341	+	if ( defined $self->{ENV}{"SCRAM_CONFIGCHKSUM"} )
342	+	{
343	+	$self->configchksum($self->{ENV}{"SCRAM_CONFIGCHKSUM"});
344	+	}
345	+	if ( defined $self->{ENV}{"SCRAM_PROJECTVERSION"} )
346	+	{
347	+	$self->version($self->{ENV}{"SCRAM_PROJECTVERSION"});
348	+	}
349	+	if ( defined $self->{ENV}{"SCRAM_CONFIGDIR"} )
350	+	{
351	+	$self->configurationdir($self->{ENV}{"SCRAM_CONFIGDIR"});
352	+	}
353	+	if ( defined $self->{ENV}{"SCRAM_SOURCEDIR"} )
354	+	{
355	+	$self->sourcedir($self->{ENV}{"SCRAM_SOURCEDIR"});
356	+	}
357	+	if ( defined $self->{ENV}{"RELEASETOP"} )
358	+	{
359	+	$self->releasetop($self->{ENV}{"RELEASETOP"});
360	+	}
361	+	}
362	+	1;

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