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[bug #5601] Exported variables ($PATH and $GNUSTEP_*)


From: nobody
Subject: [bug #5601] Exported variables ($PATH and $GNUSTEP_*)
Date: Mon, 29 Sep 2003 06:35:46 -0400
User-agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.0.1) Gecko/20020830

=================== BUG #5601: LATEST MODIFICATIONS ==================
http://savannah.gnu.org/bugs/?func=detailbug&bug_id=5601&group_id=99

Changes by: Nicola Pero <n.pero@mi.flashnet.it>
Date: Mon 09/29/2003 at 10:35 (GMT)

            What     | Removed                   | Added
---------------------------------------------------------------------------
            Severity | 5 - Major                 | 1 - Ordinary
         Assigned to | None                      | nico
              Status | Open                      | Analyzed


------------------ Additional Follow-up Comments ----------------------------
Hello.  Thanks for your feedback. :-)



> Directories that don't exist shouldn't be added.



The reason why we add directories that don't exist yet is that if you create 
the directories and install something

(a program) in them, they are immediately available, without the need for 
rerunning GNUstep.sh.



For example, $GNUSTEP_LOCAL_ROOT/Tools is added to the PATH

even if empty or non-existing.  So if you now download a tool from the net, 
compile it and install it (the tool will

by default create and install itself in $GNUSTEP_LOCAL_ROOT/Tools), then you can

run the tool immediately - it's automatically in your PATH.



If GNUstep.sh were filtering out empty/non-existing dirs, you'd have to 
manually rerun GNUstep.sh to be able to run the tool.



Moreover, you can mount/unmount entire GNUstep trees from remote networks (say, 
you mount GNUSTEP_NETWORK_ROOT from

a central server in your company); the corresponding tools

/applications will appear/disappear transparently as you

mount/umount the tree.



This functionality was felt to be so cool :-) that it's Ok

to have a few links to empty directories.



What GNUstep.sh already does is that, if GNUSTEP_LOCAL_ROOT == 
GNUSTEP_NETWORK_ROOT, for example, then it doesn't add the directory twice but 
only once.  If you're very worried about having multiple dirs, you could play 
with the gnustep-make ./configure flags to remove GNUSTEP_NETWORK_ROOT, for 
example.



The other point - reducing the number of variables exported by GNUstep.sh - is 
generally a good thing, but it's not easy as most of them are actually used / 
in use (often by 3rd party software).



The only one which looks pointless and possibly nobody

is using it is GNUSTEP_ROOT.  I'll investigate if we can remove that. :-)



=================== BUG #5601: FULL BUG SNAPSHOT ===================


Submitted by: gaelicWizard            Project: GNUstep                      
Submitted on: Sun 09/28/2003 at 05:45
Category:  Makefiles                  Severity:  1 - Ordinary               
Bug Group:  Change Request            Resolution:  None                     
Assigned to:  nico                    Status:  Analyzed                     

Summary:  Exported variables ($PATH and $GNUSTEP_*)

Original Submission:  I've noticed that there a whole lot ov variables exported 
by GNUstep.sh. I think that 

a) they should be reduced.

b) directories that don't exist shouldn't be added. For example, 
$GNUSTEP_LOCAL_ROOT/Tools shouldn't be added to my path if it doesn't exist, 
same for $GNUSTEP_USER_ROOT/Tools or any other path. Also, $CLASSPATH shouldn't 
include and dirs what don't exist etc etc etc... It would be very easy to patch 
the GNUstep.sh to do this, and i'll attach a possible patch to this later 
tonight. I think it *is* a bug for it to waste my env space like this. Thanx, JP

Follow-up Comments
*******************

-------------------------------------------------------
Date: Mon 09/29/2003 at 10:35       By: nico
Hello.  Thanks for your feedback. :-)



> Directories that don't exist shouldn't be added.



The reason why we add directories that don't exist yet is that if you create 
the directories and install something

(a program) in them, they are immediately available, without the need for 
rerunning GNUstep.sh.



For example, $GNUSTEP_LOCAL_ROOT/Tools is added to the PATH

even if empty or non-existing.  So if you now download a tool from the net, 
compile it and install it (the tool will

by default create and install itself in $GNUSTEP_LOCAL_ROOT/Tools), then you can

run the tool immediately - it's automatically in your PATH.



If GNUstep.sh were filtering out empty/non-existing dirs, you'd have to 
manually rerun GNUstep.sh to be able to run the tool.



Moreover, you can mount/unmount entire GNUstep trees from remote networks (say, 
you mount GNUSTEP_NETWORK_ROOT from

a central server in your company); the corresponding tools

/applications will appear/disappear transparently as you

mount/umount the tree.



This functionality was felt to be so cool :-) that it's Ok

to have a few links to empty directories.



What GNUstep.sh already does is that, if GNUSTEP_LOCAL_ROOT == 
GNUSTEP_NETWORK_ROOT, for example, then it doesn't add the directory twice but 
only once.  If you're very worried about having multiple dirs, you could play 
with the gnustep-make ./configure flags to remove GNUSTEP_NETWORK_ROOT, for 
example.



The other point - reducing the number of variables exported by GNUstep.sh - is 
generally a good thing, but it's not easy as most of them are actually used / 
in use (often by 3rd party software).



The only one which looks pointless and possibly nobody

is using it is GNUSTEP_ROOT.  I'll investigate if we can remove that. :-)


CC list is empty


File Attachments
****************

-------------------------------------------------------
Date: Sun 09/28/2003 at 06:50  Name: GNUstep.sh.in.diff  Size: 1KB   By: 
gaelicWizard
ummm... last one don't seem to apply cleanly...
http://savannah.gnu.org/bugs/download.php?group_id=99&amp;bug_id=5601&amp;bug_file_id=686

-------------------------------------------------------
Date: Sun 09/28/2003 at 06:09  Name: GNUstep.sh.in.diff  Size: 2KB   By: 
gaelicWizard
promised patch (generated with 'diff -Naur' )
http://savannah.gnu.org/bugs/download.php?group_id=99&amp;bug_id=5601&amp;bug_file_id=685


For detailed info, follow this link:
http://savannah.gnu.org/bugs/?func=detailbug&bug_id=5601&group_id=99

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