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Comparing COMP/SCRAM/src/Configuration/ConfigArea.pm (file contents):
Revision 1.8 by williamc, Thu Feb 10 10:59:44 2000 UTC vs.
Revision 1.22 by sashby, Tue Dec 4 19:24:04 2001 UTC

#	Line 1 | Line 1
1		#
2		# ConfigArea.pm
3		#
4	<	# Originally Written by Christopher Williams
4	>	# Written by Christopher Williams
5		#
6		# Description
7	+	# -----------
8	+	# creates and manages a configuration area
9	+	#
10	+	# Notes
11	+	# -------
12	+	# Persistency - remember to call the save method to make changes persistent
13		#
14		# Interface
15		# ---------
16	<	# new(ActiveConfig)             : A new ConfigArea object
17	<	# setup()                       : setup the configuration area
18	<	# location([dir])               : set/return the location of the area
19	<	# version([version])            : set/return the version of the area
20	<	# name([name])                  : set/return the name of the area
21	<	# store(location)               : store data in file location
22	<	# restore(location)             : restore data from file location
23	<	# meta()                        : return a description string of the area
24	<	# addconfigitem(url)            : add a new item to the area
25	<	# configitem(@keys)             : return a list of fig items that match
20	<	#                                 the keys - all if left blank
21	<	# parentstore()                 : set/return the parent ObjectStore
22	<	# bootstrapfromlocation([location]): bootstrap the object based on location.
23	<	#                                 no location specified - cwd used
16	>	# new()                         : A new ConfigArea object
17	>	# name()                        : get/set project name
18	>	# setup(dir[,areaname])         : setup a fresh area in dir
19	>	# satellite(dir[,areaname])     : setup a satellite area in dir
20	>	# version()                     : get/set project version
21	>	# location([dir])               : set/return the location of the work area
22	>	# bootstrapfromlocation([location]) : bootstrap the object based on location.
23	>	#                                     no location specified - cwd used
24	>	#                                     return 0 if succesful 1 otherwise
25	>	# requirementsdoc()             : get set the requirements doc
26		# searchlocation([startdir])    : returns the location directory. search starts
27		#                                 from cwd if not specified
28	<	# defaultdirname()              : return the default directory name string
29	<	# copy(location)                : make a copy of the current area at the
30	<	#                                 specified location - return an object
31	<	#                                 representing the area
28	>	# scramversion()                : return the scram version associated with
29	>	#                                 area
30	>	# configurationdir()            : return the location of the project
31	>	#                                 configuration directory
32	>	# copy(location)                : copy a configuration
33	>	# copysetup(location)           : copy the architecture specific tool setup
34	>	#                                 returns 0 if successful, 1 otherwise
35	>	# copyenv($ref)                 : copy the areas environment into the hashref
36	>	# toolbox()                     : return the areas toolbox object
37	>	# save()                        : save changes permanently
38	>	# linkto(location)              : link the current area to that at location
39	>	# unlinkarea()                  : destroy link (autosave)
40	>	# linkarea([ConfigArea])        : link the current area to the apec Area Object
41	>	# archname()            : get/set a string to indicate architecture
42	>	# archdir()             : return the location of the administration arch dep
43	>	#                         directory
44	>	# objectstore()         : return the objectStore object of the area
45	>	# - temporary
46	>	# align()                       : adjust hard paths to suit local loaction
47
48		package Configuration::ConfigArea;
32	–	use ActiveDoc::ActiveDoc;
49		require 5.004;
50	+	use URL::URLcache;
51		use Utilities::AddDir;
52	+	use Utilities::Verbose;
53		use ObjectUtilities::ObjectStore;
36	–	use Configuration::ConfigStore;
54		use Cwd;
55	<	@ISA=qw(ActiveDoc::ActiveDoc ObjectUtilities::StorableObject);
55	>	@ISA=qw(Utilities::Verbose);
56	>
57	>	sub new {
58	>	my $class=shift;
59	>	my $self={};
60	>	bless $self, $class;
61
62	<	sub init {
62	>	# data init
63	>	$self->{admindir}=".SCRAM";
64	>	$self->{cachedir}="cache";
65	>	$self->{dbdir}="ObjectDB";
66	>	undef $self->{linkarea};
67	>
68	>	return $self;
69	>	}
70	>
71	>	sub cache {
72		my $self=shift;
73
74	<	$self->newparse("init");
75	<	$self->newparse("download");
76	<	$self->newparse("setup");
77	<	$self->addtag("init","project",\&Project_Start,$self,
78	<	\&Project_text,$self,"", $self );
79	<	$self->addurltags("download");
80	<	$self->addtag("download","use",\&Use_download_Start,$self,
81	<	"", $self, "",$self);
82	<	$self->addurltags("setup");
83	<	$self->addtag("setup","use",\&Use_Start,$self, "", $self, "",$self);
74	>	if ( @_ ) {
75	>	$self->{cache}=shift;
76	>	}
77	>	if ( ! defined $self->{cache} ) {
78	>	my $loc=$self->location()."/".$self->{admindir}."/".$self->{cachedir};
79	>	if ( -e $loc  ) {
80	>	$self->{cache}=URL::URLcache->new($loc);
81	>	}
82	>	else {
83	>	$self->{cache}=undef;
84	>	}
85	>	}
86	>	return $self->{cache};
87	>	}
88
89	<	# data init
90	<	$self->{admindir}=".SCRAM";
89	>	sub _newcache {
90	>	my $self=shift;
91	>	my $loc=$self->location()."/".$self->{admindir}."/".$self->{cachedir};
92	>	$self->{cache}=URL::URLcache->new($loc);
93	>	return $self->{cache};
94		}
95
96	+	sub _newobjectstore {
97	+	my $self=shift;
98	+	my $loc=$self->location()."/".$self->{admindir}."/".$self->{dbdir};
99	+	$self->{dbstore}=ObjectUtilities::ObjectStore->new($loc);
100	+	return $self->{dbstore};
101	+	}
102
103	<	sub defaultdirname {
103	>	sub objectstore {
104		my $self=shift;
61	–	my $name=$self->name();
62	–	my $vers=$self->version();
63	–	$vers=~s/^$name_//;
64	–	$name=$name."_".$vers;
65	–	return $name;
105
106	+	if ( @_ ) {
107	+	$self->{dbstore}=shift;
108	+	}
109	+	if ( ! defined $self->{dbstore} ) {
110	+	my $loc=$self->location()."/".$self->{admindir}."/".$self->{dbdir};
111	+	if ( -e $loc ) {
112	+	$self->{dbstore}=ObjectUtilities::ObjectStore->new($loc);
113	+	}
114	+	else {
115	+	$self->{dbstore}=undef;
116	+	}
117	+	}
118	+	return $self->{dbstore}
119	+	}
120	+
121	+	sub name {
122	+	my $self=shift;
123	+	@_?$self->{name}=shift
124	+	:$self->{name};
125	+	}
126	+
127	+	sub version {
128	+	my $self=shift;
129	+	@_?$self->{version}=shift
130	+	:$self->{version};
131		}
132
133		sub setup {
134		my $self=shift;
135	+	my $location=shift;
136	+	my $areaname;
137
138	<	# --- find out the location - default is cwd
139	<	my $location=$self->option("area_location");
138	>	# -- check we have a project name and version
139	>	my $name=$self->name();
140	>	my $vers=$self->version();
141	>	if ( ( ! defined $name ) && ( ! defined $version )) {
142	>	$self->error("Set ConfigArea name and version before setup");
143	>	}
144	>
145	>	# -- check arguments and set location
146		if ( ! defined $location ) {
147	<	$location=cwd();
147	>	$self->error("ConfigArea: Cannot setup new area without a location");
148		}
149	<	elsif ( $location!~/^\// ) {
150	<	$location=cwd()."/".$location;
149	>	if ( @_ ) {
150	>	$areaname=shift;
151		}
152	<
153	<	# --- find area directory name , default name projectname_version
154	<	my $name=$self->option("area_name");
155	<	if ( ! defined $name ) {
84	<	$name=$self->defaultdirname();
152	>	if ( (! defined $areaname) || ( $areaname eq "" ) ) {
153	>	# -- make up a name from the project name and version
154	>	$vers=~s/^$name\_//;
155	>	$areaname=$name."_".$vers;
156		}
157	<	$self->location($location."/".$name);
157	>	my $arealoc=$location."/".$areaname;
158	>	my $workloc=$arealoc."/".$self->{admindir};
159	>	$self->verbose("Building at $arealoc");
160	>	$self->location($arealoc);
161
162	<	# make a new store handler
163	<	$self->_setupstore();
162	>	# -- create top level structure and work area
163	>	AddDir::adddir($workloc);
164
165	<	# --- download everything first
166	<	# FIX-ME --- cacheing is broken
93	<	$self->parse("download");
94	<
95	<	# --- and parse the setup file
96	<	$self->parse("setup");
97	<
98	<	# --- store bootstrap info
99	<	$self->store($self->location()."/".$self->{admindir}."/ConfigArea.dat");
165	>	# -- add a cache
166	>	$self->_newcache();
167
168	<	# --- store self in original database
169	<	$self->parentconfig()->store($self,"ConfigArea",$self->name(),
103	<	$self->version());
104	<	}
168	>	# -- add an Objectstore
169	>	$self->_newobjectstore();
170
171	<	sub _setupstore {
172	<	my $self=shift;
108	<
109	<	# --- make a new ConfigStore at the location and add it to the db list
110	<	my $ad=Configuration::ConfigStore->new($self->location().
111	<	"/".$self->{admindir});
171	>	# -- Save Environment File
172	>	$self->_SaveEnvFile();
173
113	–	$self->parentconfig($self->config());
114	–	#        $self->config(Configuration::ConfigureStore->new());
115	–	#        $self->config()->db("local",$ad);
116	–	#        $self->config()->db("parent",$self->parentconfig());
117	–	#        $self->config()->policy("cache","local");
118	–	$self->config($ad);
119	–	$self->config()->basedoc($self->parentconfig()->basedoc());
174		}
175
176	<	sub bootstrapfromlocation {
176	>	sub configurationdir {
177		my $self=shift;
178	<
179	<	if ( ! defined $self->location(@_) ) {
126	<	$self->error("Unable to locate the top of local configuration area");
178	>	if ( @_ ) {
179	>	$self->{configurationdir}=shift;
180		}
181	<	print "Found top ".$self->location()."\n";
129	<	$self->_setupstore();
130	<	$self->restore($self->location()."/".$self->{admindir}.
131	<	"/ConfigArea.dat");
132	<	}
133	<
134	<	sub parentconfig {
135	<	my $self=shift;
136	<	@_?$self->{parentconfig}=shift
137	<	:$self->{parentconfig};
181	>	return (defined $self->{configurationdir})?$self->{configurationdir}:undef;
182		}
183
184	<	sub store {
184	>	sub toolbox {
185		my $self=shift;
186	<	my $location=shift;
187	<
188	<	my $fh=$self->openfile(">".$location);
189	<	$self->savevar($fh,"location", $self->location());
146	<	$self->savevar($fh,"url", $self->url());
147	<	$self->savevar($fh,"name", $self->name());
148	<	$self->savevar($fh,"version", $self->version());
149	<	$fh->close();
186	>	if ( ! defined $self->{toolbox} ) {
187	>	$self->{toolbox}=BuildSystem::ToolBox->new($self, $ENV{SCRAM_ARCH});
188	>	}
189	>	return $self->{toolbox};
190		}
191
192	<	sub copy {
192	>	sub requirementsdoc {
193		my $self=shift;
194	<	my $destination=shift;
195	<	use File::Basename;
196	<	# create the area
197	<
198	<	AddDir::adddir(dirname($destination));
199	<
200	<	$temp=$self->location();
201	<	my @cpcmd=(qw(cp -r), "$temp", "$destination");
202	<	print "@cpcmd"."\n";
163	<	#       File::Copy::copy("$self->location()", "$destination") or
164	<	system(@cpcmd) == 0 or
165	<	$self->error("Cannot copy ".$self->location().
166	<	" to $destination ".$!);
167	<
168	<	# create a new object based on the new area
169	<	my $newarea=ref($self)->new($self->parentconfig());
170	<	$newarea->bootstrapfromlocation($destination);
171	<	# save it with the new location info
172	<	$newarea->store($self->location()."/".$self->{admindir}."/ConfigArea.dat");
194	>	if ( @_ ) {
195	>	$self->{reqdoc}=shift;
196	>	}
197	>	if ( defined $self->{reqdoc} ) {
198	>	return $self->location()."/".$self->{reqdoc};
199	>	}
200	>	else {
201	>	return undef;
202	>	}
203		}
204
205	<	sub restore {
205	>	sub scramversion {
206		my $self=shift;
207	<	my $location=shift;
208	<
209	<	my $fh=$self->openfile("<".$location);
210	<	my $varhash={};
211	<	$self->restorevars($fh,$varhash);
212	<	if ( ! defined $self->location() ) {
213	<	$self->location($$varhash{"location"});
214	<	}
215	<	$self->_setupstore();
216	<	$self->url($$varhash{"url"});
217	<	$self->name($$varhash{"name"});
218	<	$self->version($$varhash{"version"});
219	<	$fh->close();
207	>	if ( ! defined $self->{scramversion} ) {
208	>	my $filename=$self->location()."/".$self->configurationdir()."/".
209	>	"scram_version";
210	>	if ( -f $filename ) {
211	>	use FileHandle;
212	>	$fh=FileHandle->new();
213	>	open ($fh, "<".$filename);
214	>	my $version=<$fh>;
215	>	chomp $version;
216	>	$self->{scramversion}=$version;
217	>	undef $fh;
218	>	}
219	>	}
220	>	return $self->{scramversion};
221		}
222
223	<	sub name {
224	<	my $self=shift;
223	>	sub sitename
224	>	{
225	>	###############################################################
226	>	# sitename()                                                  #
227	>	###############################################################
228	>	# modified : Mon Dec  3 15:45:35 2001 / SFA                   #
229	>	# params   :                                                  #
230	>	#          :                                                  #
231	>	#          :                                                  #
232	>	#          :                                                  #
233	>	# function : Read the site name from config/site/sitename and #
234	>	#          : export it.                                       #
235	>	#          :                                                  #
236	>	#          :                                                  #
237	>	###############################################################
238	>	my $self = shift;
239	>	my $sitefile = $self->location()."/".$self->configurationdir()."/site/sitename";
240	>
241	>	$self->{sitename} = 'CERN'; # Use CERN as the default site name
242	>
243	>	use FileHandle;
244	>	my $sitefh = FileHandle->new();
245	>
246	>	# Be verbose and print file we're going to read:
247	>	$self->verbose(">> Going to try to get sitename from: ".$sitefile." ");
248	>
249	>	# See if we can read from the file. If not, just
250	>	# use default site name:
251	>	open($sitefh,"<".$sitefile) ||
252	>	do
253	>	{
254	>	$self->verbose(">> Unable to read a site name definition file. Using \'CERN\' as the site name.");
255	>	return $self->{sitename};
256	>	};
257	>
258	>	$sitename = <$sitefh>;
259	>	chomp($sitename);
260	>	$self->{sitename} = $sitename;
261	>
262	>	# Close the file (be tidy!);
263	>	close($sitefile);
264	>	# Return:
265	>	return $self->{sitename};
266	>	}
267
195	–	@_?$self->{name}=shift
196	–	:$self->{name};
197	–	}
268
269	<	sub version {
269	>	sub bootstrapfromlocation {
270		my $self=shift;
271
272	<	@_?$self->{version}=shift
273	<	:$self->{version};
272	>	my $rv=0;
273	>
274	>	my $location;
275	>	if ( ! defined ($location=$self->searchlocation(@_)) ) {
276	>	$rv=1;
277	>	$self->verbose("Unable to locate the top of local configuration area");
278	>	}
279	>	else {
280	>	$self->location($location);
281	>	$self->verbose("Found top ".$self->location());
282	>	my $infofile=$self->location()."/".$self->{admindir}."/ConfigArea.dat";
283	>	$self->_LoadEnvFile();
284	>	}
285	>	return $rv;
286		}
287
288		sub location {
#	Line 211 | Line 293 | sub location {
293		}
294		elsif ( ! defined $self->{location} ) {
295		# try and find the release location
296	<	#$self->{location}=$self->searchlocation();
296	>	$self->{location}=$self->searchlocation();
297		}
298		return  $self->{location};
299		}
300
301		sub searchlocation {
302		my $self=shift;
303	<
303	>
304		#start search in current directory if not specified
305		my $thispath;
306	<	@_?$thispath=shift
307	<	:$thispath=cwd();
308	<
306	>	if ( @_ ) {
307	>	$thispath=shift
308	>	}
309	>	else {
310	>	$thispath=cwd();
311	>	}
312	>
313		my $rv=0;
314
315	+	# chop off any files - we only want dirs
316	+	if ( -f $thispath ) {
317	+	$thispath=~s/(.*)\/.*/$1/;
318	+	}
319		Sloop:{
320		do {
321	<	#         print "Searching $thispath\n";
321	>	$self->verbose("Searching $thispath");
322		if ( -e "$thispath/".$self->{admindir} ) {
323	<	#           print "Found\n";
323	>	$self->verbose("Found\n");
324		$rv=1;
325		last Sloop;
326		}
327		} while ( ($thispath=~s/(.*)\/.*/$1/)=~/./ ) };
328	<
328	>
329		return $rv?$thispath:undef;
330		}
331
332	<	sub meta {
332	>	sub archname {
333		my $self=shift;
334	+	if ( @_ ) {
335	+	$self->{archname}=shift;
336	+	}
337	+	return $self->{archname};
338	+	}
339
340	<	my $string=$self->name()." ".$self->version()." located at :\n  ".
341	<	$self->location;
340	>	sub archdir {
341	>	my $self=shift;
342	>	if ( @_ ) {
343	>	$self->{archdir}=shift;
344	>	}
345	>	if ( ! defined $self->{archdir} ) {
346	>	if ( defined $self->{archname} ) {
347	>	$self->{archdir}=$self->location()."/".$self->{admindir}."/".
348	>	$self->{archname};
349	>	}
350	>	else {
351	>	$self->error("ConfigArea : cannot create arch directory - ".
352	>	"architecture name not set")
353	>	}
354	>	}
355	>	return $self->{archdir};
356		}
357
358	<	sub configitem {
358	>	sub satellite {
359		my $self=shift;
360	+
361	+	# -- create the sat object
362	+	my $sat=Configuration::ConfigArea->new();
363	+	$sat->name($self->name());
364	+	$sat->version($self->version());
365	+	$sat->requirementsdoc($self->{reqdoc});
366	+	$sat->configurationdir($self->configurationdir());
367	+	$sat->setup(@_);
368	+
369	+	# -- copy across the cache and ObjectStore
370	+	# -- make sure we dont try building new caches in release areas
371	+	my $rcache=$self->cache();
372	+	if ( defined $rcache ) {
373	+	copy($rcache->location(),$sat->cache()->location());
374	+	}
375	+
376	+	# -- make sure we dont try building new objectstores in release areas
377	+	my $rostore=$self->objectstore();
378	+	if ( defined $rostore ) {
379	+	copy($rostore->location(),$sat->objectstore()->location());
380	+	}
381	+
382	+	# and make sure in reinitialises
383	+	undef ($sat->{cache});
384	+
385	+	# -- link it to this area
386	+	$sat->linkarea($self);
387
388	<	return ($self->config()->find("ConfigItem",@_));
388	>	# -- save it
389	>	$sat->save();
390	>
391	>	return $sat;
392		}
393
394	<	sub addconfigitem {
394	>	sub copy {
395		my $self=shift;
396	<	my $url=shift;
396	>	my $destination=shift;
397
398	<	my $docref=$self->activatedoc($url);
399	<	# Set up the document
400	<	$docref->setup();
401	<	$docref->save();
402	<	#       $self->config()->storepolicy("local");
398	>	# copy across the admin dir
399	>	my $temp=$self->location()."/".$self->{admindir};
400	>	AddDir::copydir($temp,"$destination/".$self->{admindir});
401	>	}
402	>
403	>	sub align {
404	>	my $self=shift;
405	>	use File::Copy;
406	>
407	>	$self->_LoadEnvFile();
408	>	my $Envfile=$self->location()."/".$self->{admindir}."/Environment";
409	>	my $tmpEnvfile=$Envfile.".bak";
410	>	my $rel=$self->{ENV}{RELEASETOP};
411	>	my $local=$self->location();
412	>
413	>	rename( $Envfile, $tmpEnvfile );
414	>	use FileHandle;
415	>	my $fh=FileHandle->new();
416	>	my $fout=FileHandle->new();
417	>	open ( $fh, "<".$tmpEnvfile ) or
418	>	$self->error("Cannot find Environment file. Area Corrupted? ("
419	>	.$self->location().")\n $!");
420	>	open ( $fout, ">".$Envfile ) or
421	>	$self->error("Cannot find Environment file. Area Corrupted? ("
422	>	.$self->location().")\n $!");
423	>	while ( <$fh> ) {
424	>	$_=~s/\Q$rel\L/$local/g;
425	>	print $fout $_;
426	>	}
427	>	undef $fh;
428	>	undef $fout;
429		}
430
431	<	# -------------- Tags ---------------------------------
267	<	# -- init parse
268	<	sub Project_Start {
431	>	sub copysetup {
432		my $self=shift;
433	<	my $name=shift;
271	<	my $hashref=shift;
433	>	my $dest=shift;
434
435	<	$self->checktag($name,$hashref,'name');
436	<	$self->checktag($name,$hashref,'version');
437	<
438	<	$self->name($$hashref{'name'});
439	<	$self->version($$hashref{'version'});
435	>	my $rv=1;
436	>	# copy across the admin dir
437	>	my $temp=$self->location()."/".$self->{admindir}."/".$self->arch();
438	>	my $temp2=$dest."/".$self->{admindir}."/".$self->arch();
439	>	if ( $temp ne $temp2 ) {
440	>	if ( -d $temp ) {
441	>	AddDir::copydir($temp,$temp2);
442	>	$rv=0;
443	>	}
444	>	}
445	>	return $rv;
446		}
447
448	+	sub copyenv {
449	+	my $self=shift;
450	+	my $hashref=shift;
451	+
452	+	foreach $elem ( keys %{$self->{ENV}} ) {
453	+	$$hashref{$elem}=$self->{ENV}{$elem};
454	+	}
455	+	}
456
457	<	sub Project_text {
457	>	sub arch {
458		my $self=shift;
459	<	my $name=shift;
460	<	my $string=shift;
459	>	return $ENV{SCRAM_ARCH};
460	>	}
461
462	<	print $string;
462	>	sub linkto {
463	>	my $self=shift;
464	>	my $location=shift;
465	>	if ( -d $location ) {
466	>	my $area=Configuration::ConfigArea->new();
467	>	$area->bootstrapfromlocation($location);
468	>	$self->linkarea($area);
469	>	}
470	>	else {
471	>	$self->error("ConfigArea : Unable to link to non existing directory ".
472	>	$location);
473	>	}
474		}
475
476	<	# ---- download parse
476	>	sub unlinkarea {
477	>	my $self=shift;
478	>	undef $self->{linkarea};
479	>	$self->{linkarea}=undef;
480	>	$self->save();
481	>	}
482
483	<	sub Use_download_Start {
483	>	sub linkarea {
484		my $self=shift;
485	<	my $name=shift;
486	<	my $hashref=shift;
485	>	my $area=shift;
486	>	if ( defined $area ) {
487	>	$self->{linkarea}=$area;
488	>	}
489	>	return (defined $self->{linkarea} && $self->{linkarea} ne "")?
490	>	$self->{linkarea}:undef;
491	>	}
492
493	<	$self->checktag($name,$hashref,'url');
494	<	print "Downloading .... ".$$hashref{'url'}."\n";
495	<	$self->getfile($$hashref{'url'});
493	>	sub save {
494	>	my $self=shift;
495	>	$self->_SaveEnvFile();
496		}
497
498	<	# --- setup parse
498	>	# ---- support routines
499
500	<	sub Use_Start {
500	>	sub _SaveEnvFile {
501		my $self=shift;
502	<	my $name=shift;
503	<	my $hashref=shift;
502	>	use FileHandle;
503	>	my $fh=FileHandle->new();
504	>	open ( $fh, ">".$self->location()."/".$self->{admindir}."/".
505	>	"Environment" ) or
506	>	$self->error("Cannot Open Environment file to Save ("
507	>	.$self->location().")\n $!");
508
509	<	$self->checktag($name,$hashref,'url');
510	<	$self->addconfigitem($$hashref{'url'});
509	>	print $fh "SCRAM_PROJECTNAME=".$self->name()."\n";
510	>	print $fh "SCRAM_PROJECTVERSION=".$self->version()."\n";
511	>	print $fh "projconfigdir=".$self->configurationdir()."\n";
512	>	print $fh "SCRAM_ProjReqsDoc=".$self->{reqdoc}."\n";
513	>	if ( defined $self->linkarea() ) {
514	>	my $area=$self->linkarea()->location();
515	>	if ( $area ne "" ) {
516	>	print $fh "RELEASETOP=".$area."\n";
517	>	}
518	>	}
519	>	undef $fh;
520		}
521
522	+
523	+	sub _LoadEnvFile {
524	+	my $self=shift;
525	+
526	+	use FileHandle;
527	+	my $fh=FileHandle->new();
528	+	open ( $fh, "<".$self->location()."/".$self->{admindir}."/".
529	+	"Environment" ) or
530	+	$self->error("Cannot find Environment file. Area Corrupted? ("
531	+	.$self->location().")\n $!");
532	+	while ( <$fh> ) {
533	+	chomp;
534	+	next if /^#/;
535	+	next if /^\s*$/ ;
536	+	($name, $value)=split /=/;
537	+	eval "\$self->{ENV}{${name}}=\"$value\"";
538	+	}
539	+	undef $fh;
540	+
541	+	# -- set internal variables appropriately
542	+	if ( defined $self->{ENV}{"SCRAM_PROJECTNAME"} ) {
543	+	$self->name($self->{ENV}{"SCRAM_PROJECTNAME"});
544	+	}
545	+	if ( defined $self->{ENV}{"SCRAM_PROJECTVERSION"} ) {
546	+	$self->version($self->{ENV}{"SCRAM_PROJECTVERSION"});
547	+	}
548	+	if ( defined $self->{ENV}{"projconfigdir"} ) {
549	+	$self->configurationdir($self->{ENV}{projconfigdir});
550	+	}
551	+	if ( defined $self->{ENV}{"SCRAM_ProjReqsDoc"} ) {
552	+	$self->requirementsdoc($self->{ENV}{SCRAM_ProjReqsDoc});
553	+	}
554	+	if ( ( defined $self->{ENV}{"RELEASETOP"} ) &&
555	+	($self->{ENV}{"RELEASETOP"} ne $self->location())) {
556	+	$self->linkto($self->{ENV}{"RELEASETOP"});
557	+	}
558	+	else {
559	+	$self->{ENV}{"RELEASETOP"}=$self->location();
560	+	}
561	+	}

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