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Re: [p2-dev] Helios Features Mirror
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Thanks gentlemen, sorry for the delayed reply these look like great options.
Pascal:
-Where can I grab your released build supporting the new code?
-Is it possible to run your solution to create a repository for each
platform, then aggregate them into one repository?
Thomas:
-Is it possible to use the aggregator to slice out just one feature
and all transitively required bundles?
Thanks!
David
On Mon, Apr 11, 2011 at 3:59 AM, Thomas Hallgren <thomas@xxxxxxx> wrote:
> Hi David,
>
> An alternative for you might be to use the b3 aggregator [1]. That is the
> tool that was used when creating the Helios and Indigo aggregations and it
> can be used for this type of use-case as well. It can be downloaded from our
> update site [2] and executed either as a freestanding headless product, or
> within your IDE complete with graphical editor.
>
> Since the aggregator performs a validation prior to mirroring there are two
> "flaws" in Helios that must be catered for. One is explained here:
>
> https://bugs.eclipse.org/bugs/show_bug.cgi?id=342350
>
> and the other is that the feature org.eclipse.jwt.feature was renamed to
> org.eclipse.jwt.feature in a service pack release which in turn leads to
> conflicts since both are included when trying to resolve a "canonical"
> repository.
>
> This b3.aggr file will successfully create a validated, "as small as
> possible" mirror of Helios for three common environments (win32.win32.x86,
> linux.gtk.x86, linux.gtk.x86_64). You can add other environments using the
> editor.
>
> <?xml version="1.0" encoding="ASCII"?>
> <aggregator:Aggregator xmi:version="2.0" xmlns:xmi="http://www.omg.org/XMI";
> xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance";
> xmlns:aggregator="http://www.eclipse.org/b3/2010/aggregator/1.0.0";
> description="Used to test stuff that causes errors when added to the main
> repo model." label="Test Repo" buildRoot="build-test"
> packedStrategy="VERIFY">
> <configurations/>
> <configurations operatingSystem="linux" windowSystem="gtk"/>
> <configurations operatingSystem="linux" windowSystem="gtk"
> architecture="x86_64"/>
> <contributions label="Platform Repo">
> <repositories location="http://download.eclipse.org/releases/helios/";>
> <mapRules xsi:type="aggregator:ValidConfigurationsRule"
> description="Cater for bad filtering in the epp.package.linuxtools
> requirement for org.eclipse.epp.package.linuxtools.feature.feature.group"
> name="epp.package.linuxtools" validConfigurations="//@configurations.1
> //@configurations.2"/>
> <mapRules xsi:type="aggregator:ExclusionRule" description="Exclude
> feature that has been renamed and hence causes conflicts."
> name="org.eclipse.jwt.feature.group" versionRange="[0.7.0,0.8.0)"/>
> </repositories>
> </contributions>
> </aggregator:Aggregator>
>
> [1] http://wiki.eclipse.org/Eclipse_b3/aggregator/manual
> [2]
> https://hudson.eclipse.org/hudson/job/emft-b3-build/lastSuccessfulBuild/artifact/b3.p2.repository/
>
> Regards,
> Thomas Hallgren
>
>
> On 2011-04-11 06:10, Pascal Rapicault wrote:
>
> Since there was no satisfying solution, I've just released code to the
> mirroring app that will perform the same resolution than the one performed
> at install time. This will be available in the next I build (Tuesday
> morning)
> This can be enabled by setting resolve="true" (see example below).
> Only one platform filter can be supported at a time (or none).
>
> <project name="Helios Mirror" default="mirror" basedir=".">
> <target name="mirror">
> <p2.mirror source="http://download.eclipse.org/releases/helios/";
> destination="${basedir}" verbose="true">
> <iu id="org.eclipse.equinox.sdk.feature.group"
> version="3.6.0.v20100601-7H7R-7v8rtGVR34XkO3kfH3DUO07" />
> <slicingOptions resolve="true" platformFilter="win32,win32,x86"/>
> </p2.mirror>
> </target>
> </project>
>
> On 2011-04-08, at 5:53 PM, David Erickson wrote:
>
> Hi all-
> I am trying to make the smallest mirror size as possible of two
> features from Helios. I am using the following ant-task:
>
> <project name="Helios Mirror" default="mirror" basedir=".">
> <target name="mirror">
> <p2.mirror source="http://download.eclipse.org/releases/helios/";
> destination="${basedir}" verbose="true">
> <iu id="org.eclipse.equinox.sdk.feature.group"
> version="3.6.0.v20100601-7H7R-7v8rtGVR34XkO3kfH3DUO07" />
> <iu id="org.eclipse.pde.junit.runtime.standalone.feature.group"
> version="1.0.0.v20100610" />
> <slicingOptions followStrict="true" includeOptional="false"
> includeNonGreedy="false"/>
> </p2.mirror>
> </target>
> </project>
>
> and the following target file:
>
> <?xml version="1.0" encoding="UTF-8" standalone="no"?>
> <?pde version="3.6"?>
>
> <target name="Main Target">
> <locations>
> <location path="${resource_loc:/Libraries}" type="Profile"/>
> <location includeAllPlatforms="false" includeMode="planner"
> type="InstallableUnit">
> <unit id="org.eclipse.equinox.sdk.feature.group"
> version="3.6.0.v20100601-7H7R-7v8rtGVR34XkO3kfH3DUO07"/>
> <unit id="org.eclipse.pde.junit.runtime.standalone.feature.group"
> version="1.0.0.v20100610"/>
> <repository location="file:/path/to/libs_helios/"/>
> </location>
> </locations>
> </target>
>
> The result is a nice small sized mirror at ~31MB, however when I load
> the target in Eclipse that points to this folder and the two specified
> features I get resolution errors on needed packages that don't have an
> explicit version requirement listed, many of which are in javax.*. (To
> make this even more bizarre I've actually had it resolve happily once
> or twice then on all followups it fails to resolve).
>
> Now I can solve the resolution problem by changing followStrict to
> false, however then I end up with a mirror folder that is ~90MB,
> containing many duplicates of the same bundles but with separate
> versions, ie the folder has 3 commons logging bundles, 3 JFace
> libraries at 1MB a piece, 3 org.eclipse.ui.ide bundles, etc etc.
>
> How can I bridge the gap here by getting just the features I need
> using the requested versions and the small mirror size, but also have
> all the bundles I need so I don't get resolution errors?
>
> Thanks!
> David
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