Home » Archived » Buckminster » [git-reader] Materializing components from different sub-paths of the same repository
| [git-reader] Materializing components from different sub-paths of the same repository [message #654845] |
Thu, 17 February 2011 07:21  |
Eclipse User |
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Hi,
I am trying to set up a cquery + rmap for etrice. Since plugins are
located in different subdirectories in the repository, I created
separate searchPaths, like this:
<rm:searchPath name="etrice.examples">
<rm:provider componentTypes="osgi.bundle" readerType="git">
<rm:uri format="{0}/org.eclipse.etrice,examples/{1}">
<bc:propertyRef key="workspace.root" />
<bc:propertyRef key="buckminster.component" />
</rm:uri>
<rm:property key="git.remote.uri" value="${etrice.git.repo}"/>
</rm:provider>
</rm:searchPath>
<rm:searchPath name="etrice.modellib">
<rm:provider componentTypes="osgi.bundle" readerType="git">
<rm:uri format="{0}/org.eclipse.etrice,modellib/{1}">
<bc:propertyRef key="workspace.root" />
<bc:propertyRef key="buckminster.component" />
</rm:uri>
<rm:property key="git.remote.uri" value="${etrice.git.repo}"/>
</rm:provider>
</rm:searchPath>
And then defined corresponding locators. So far so good, but when trying
to resolve a cquery using this rmap, I run into errors like this:
> ERROR [0002] : No suitable provider for component org.eclipse.etrice.generator:osgi.bundle was found in resourceMap file:/D:/git/org.eclipse.etrice.releng.feature/etrice-git.rm ap
> ERROR [0002] : No suitable provider for component org.eclipse.etrice.generator:osgi.bundle was found in searchPath etrice.plugins
> ERROR [0002] : Rejecting provider git({0}/org.eclipse.etrice,plugins/{1}[C:/Users/Daniel/works pace/default/org.eclipse.etrice,plugins/org.eclipse.etrice.g enerator]): No component match was found
> ERROR java.io.IOException: Cannot lock file C:\Users\Daniel\workspace\default\org.eclipse.etrice\.git\co nfig
> E [0002] : Rejecting provider git({0}/org.eclipse.etrice,tests/{1}[C:/Users/Daniel/workspa ce/default/org.eclipse.etrice,tests/org.eclipse.etrice.gener ator.tests]): No component match was found: java.io.IOException: Cannot lock file C:\Users\Daniel\workspace\default\org.eclipse.etrice\.git\co nfig
> ERROR [0002] : No suitable provider for component org.eclipse.etrice.ui.behavior:osgi.bundle was found in resourceMap file:/D:/git/org.eclipse.etrice.releng.feature/etrice-git.rm ap
> ERROR [0002] : No suitable provider for component org.eclipse.etrice.ui.behavior:osgi.bundle was found in searchPath etrice.plugins
> ERROR [0002] : Rejecting provider git({0}/org.eclipse.etrice,plugins/{1}[C:/Users/Daniel/works pace/default/org.eclipse.etrice,plugins/org.eclipse.etrice.u i.behavior]): No component match was found
> ERROR java.io.IOException: Cannot lock file C:\Users\Daniel\workspace\default\org.eclipse.etrice\.git\co nfig
Looks to me like buckminster is trying to lock the local repository
multiple times. The local clone was not present, I intended to let
buckminster take care of this. Does the git reader not support multiple
searchPaths using the same repository?
Here's the feature versions I used:
> Buckminster - Core 1.3.1.r11666 org.eclipse.buckminster.core.feature.feature.group
> Buckminster - Git Support 1.0.360.r11654 org.eclipse.buckminster.git.feature.feature.group
> Buckminster - PDE support 1.2.1.r11660 org.eclipse.buckminster.pde.feature.feature.group
> Eclipse EGit (Incubation) 0.10.1 org.eclipse.egit.feature.group
> Eclipse JGit (Incubation) 0.10.1 org.eclipse.jgit.feature.group
Any help would be appreciated.
Regards,
Daniel
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| Re: [git-reader] Materializing components from different sub-paths of the same repository [message #654897 is a reply to message #654862] |
Thu, 17 February 2011 09:40  |
| Eclipse User |
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On 17.02.2011 14:22, Thomas Hallgren wrote:
> On 2011-02-17 13:21, Daniel Weber wrote:
>>
>> Looks to me like buckminster is trying to lock the local repository multiple times. The local clone was not present, I
>> intended to let buckminster take care of this. Does the git reader not support multiple searchPaths using the same
>> repository?
>>
> AFAIK, it has never been tested so there's a distinct possibility that it doesn't work just yet. Our git support is
> still in it's infancy and it builds on egit/jgit which is still in incubation and moving forward rapidly. It's all for
> the good but help finding bugs, attached samples that provoke errors, and of course patches fixing such errors ;-) is
> greatly appreciated. Nothing mandatory of course, but the more the better.
>
> Please enter a bugzilla for this and attach as much info as possible.
>
> Thanks,
> Thomas Hallgren
I can confirm this. When initially resolving a query where the git
repository is not yet present locally, concurrency issues ensue.
I've avoided this so far by setting the parallel resolver threads to 1.
IIRC, the problem I identified in the past is that the first resolver thread
starts cloning the repository, then the second thread tries to resolve
something else from it, sees that there already is a repository (and doesn't
know about or gets blocked by the other resolver still cloning) and tries to
checkout from it.
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| Re: [git-reader] Materializing components from different sub-paths of the same repository [message #655400 is a reply to message #655210] |
Sun, 20 February 2011 10:06 |
| Eclipse User |
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On 18.02.2011 17:24, Daniel Weber wrote:
> On 17.02.2011 15:40, Carsten Reckord wrote:
>> I've avoided this so far by setting the parallel resolver threads to 1.
>
> That seems to be a valid workaround, worked for me, too. Thanks!
>
>> IIRC, the problem I identified in the past is that the first resolver thread
>> starts cloning the repository, then the second thread tries to resolve
>> something else from it, sees that there already is a repository (and doesn't
>> know about or gets blocked by the other resolver still cloning) and tries to
>> checkout from it.
>
> So has a bug been filed already?
No, I meant to file one and look into it further, too, but I haven't come
around to either yet. So feel free to go ahead and file one.
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