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[p2-dev] FW: [emf-dev] Possible bug in EMF all-in-one distribution

See attached re. my recent problems with the EMF update site
distribution. I can't really say either way, but sounds like there needs
to be an agreement between you guys! Can one of you get in touch with
them and resolve this issue so other users don't have the same problem
as me?

Cheers guys, and thanks again for getting me a working solution.


-----Original Message-----
From: emf-dev-bounces@xxxxxxxxxxx [mailto:emf-dev-bounces@xxxxxxxxxxx]
On Behalf Of Nick Boldt
Sent: 11 September 2009 16:29
To: Eclipse Modelling Framework; P2 developer discussions
Subject: Re: [emf-dev] Possible bug in EMF all-in-one distribution

IMHO the fact that p2 doesn't check locally for a .jar.pack.gz before
going to the web is still a bug in p2. A local repo, whether a zip or a
folder, ought to have the same 'see if there's a packed jar just in
case' behaviour - isn't that like one line of

And since the zip is installable as a zip, which is easier/faster than
unpacking it first, and can be installed via director using the jar:
prefix, I consider this a WORKSFORME.

If you disagree, open a bug and I'll point you at the code that does the
jar packing, metadata gen, and zip packaging. Patches welcome.


On 9/11/09, Dalton, Tom <tom.dalton@xxxxxxx> wrote:
> Hi,
> I had some problems recently with the EMF all-in-one distribution - 
> the update site .zip file. I raised the issue with the P2 team (who 
> maintain Eclipse's update features) and they say it's a bug in your
> Please see the attached email chain for the details.
> Cheers,
> Tom Dalton
> ________________________________
> 	From: p2-dev-bounces@xxxxxxxxxxx
> [mailto:p2-dev-bounces@xxxxxxxxxxx] On Behalf Of Dalton, Tom
> 	Sent: 11 September 2009 12:27
> 	To: P2 developer discussions
> 	Subject: RE: [p2-dev] Issue running p2 director
> 	Thank you for the response - I'll let the EMF team know there's
> problem at their end.
> 	Using the jar:file type URI to point at the .zip seems to work
in the 
> meantime, so I'm a very happy bunny.
> 	Cheers,
> 	Tom
> ________________________________
> 		From: p2-dev-bounces@xxxxxxxxxxx
> [mailto:p2-dev-bounces@xxxxxxxxxxx] On Behalf Of Pascal Rapicault
> 		Sent: 10 September 2009 18:00
> 		To: P2 developer discussions
> 		Cc: p2-dev@xxxxxxxxxxx; p2-dev-bounces@xxxxxxxxxxx
> 		Subject: Re: [p2-dev] Issue running p2 director
> 		The artifact repository contained in this archive is
> It has been made inconsistent by the EMF build process which deletes 
> the canonical jars to only leave the pack'ed one, but does not update 
> the artifact repository index (artifacts.jar) to reflect this change. 
> Please report this problem to the EMF team.
> 		The reason why this is working in the case of a zip'ed
repo is 
> because p2 treats it as a non-local repo and installs from the pack 
> file which it finds. However when the repository is exploded on the 
> file system, p2 first tries to download the JAR because the artifact 
> repository index (artifacts.jar) indicates that it contains it even 
> though it does not have it. If this reference had not been available 
> in the artifact repo index, then p2 would have resorted to use the 
> pack'ed files.
> 		That said, the code in MirrorRequest#perform in the 
> p2.artifact.repository bundle could be made for insistent and try 
> every descriptor rather than just the first one.
> 		Did you try to point the director app at the archive
using as a 
> repository the JAR URI (jar:file:/c:/archive.zip!/ or see the URI that

> gets created for you when you add the archive through the UI)?
> 		HTH
> 		PaScaL
> 		[p2-dev] Issue running p2 director
> [p2-dev] Issue running p2 director	
> Dalton, Tom 	
> to:	
> p2-dev	
> 09/10/2009 06:57 AM
> Sent by:	
> p2-dev-bounces@xxxxxxxxxxx	
> Please respond to P2 developer discussions
> ________________________________
> 		Hi,
> 		I'm using the Eclipse 3.5 CDT on a non-networked machine
and I want 
> to add the EMF framework to it. I have downloaded the EMF update site 
> .zip from
> http://www.eclipse.org/modeling/emf/downloads/?project=emf
> <http://www.eclipse.org/modeling/emf/downloads/?project=emf>
> 		Specifically I got
> http://www.eclipse.org/modeling/download.php?file=/modeling/emf/emf/do
> wn loads/drops/2.5.0/R200906151043/emf-xsd-Update-2.5.0.zip
> <http://www.eclipse.org/modeling/download.php?file=/modeling/emf/emf/d
> ow nloads/drops/2.5.0/R200906151043/emf-xsd-Update-2.5.0.zip>
> 		Now, if I install that update though the Eclipse UI by
selecting the 
> zip file itself, everything works. However, if I unzip the file to 
> somewhere temporary and then try to install from that location, it 
> gets to about 60% though and then bombs out with a mass of 'file not 
> found' errors, because it seems to be looking for the plugins as plain

> .jar files instead of the actual .jar.pack.gz files.
> 		This difference in behaviours seems to me to be a bug,
albeit with a 
> workaround (install direct from the zip rather than extracting it 
> myself). So that would be fine, except that I need to automat the 
> eclipse build (I need to add a lot more than just EMF and need to do 
> this for a lot of people).
> 		So I started looking at the P2 director command line
stuff described 
> at:
> http://help.eclipse.org/galileo/topic/org.eclipse.platform.doc.isv/gui
> de
> /p2_director.html
> <http://help.eclipse.org/galileo/topic/org.eclipse.platform.doc.isv/gu
> id
> e/p2_director.html>
> 		And
> http://wiki.eclipse.org/Equinox_p2_director_application#Installing_.2F
> _u
> ninstalling_IUs_into_a_target_product
> <http://wiki.eclipse.org/Equinox_p2_director_application#Installing_.2
> F_ uninstalling_IUs_into_a_target_product>
> 		However, when using these methods, if I set the
-repository to point 
> at the zip file itself, it moans that its not a valid repository. If I

> point it at my manually unzipped directory, it starts off ok, but then

> bombs out with the same file not found errors as described above.
> 		So two questions:
> 		1. Are these file not found errors the symptoms of a
> 		2. Is there a way to duplicate the UI install-from-zip
behaviour via 
> the command line P2 director (which would provide me with a solution 
> to my problem).
> 		Thanks a lot for any help provided!
> 		Tom Dalton
> _______________________________________________
> 		p2-dev mailing list
> 		p2-dev@xxxxxxxxxxx
> 		https://dev.eclipse.org/mailman/listinfo/p2-dev

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Nick Boldt :: JBoss by Red Hat
Productization Lead :: JBoss Tools & Dev Studio Release Engineer :: Dash
Athena http://nick.divbyzero.com
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