Gradle Plugin / dump plugin with jre dependency

[Matthew Aguirre]

Here's a snap + wrapper that seems to work.
It's really messy as it copies the contents of freeplane twice.
https://gist.github.com/ZenHarbinger/cf3aec2d7c6110ab0a0780b315cadc2f
--
Matt

On Thu, Dec 29, 2016 at 12:17 PM, Matthew Aguirre 
<matt.aguirre at gmail.com> wrote:
> I take that back, you will need the JDK to get the full on 
> visualization libraries included.  Otherwise it defaults to headless 
> with just the JRE.  I ran into that problem.
> 
> https://github.com/ZenHarbinger/torgo
> 
> While not gradle, it is a Java app with a GUI that works.
> --
> Matt
> 
> On Thu, Dec 29, 2016 at 12:06 PM, Matthew Aguirre 
> <matt.aguirre at gmail.com> wrote:
>> If you need the JDK (not just the jre), you should be able to do the 
>> following:
>> 
>>>     stage-packages:
>>>       - fontconfig-config
>>>       - default-jdk
>>>       - fonts-dejavu-extra
>>>       - fonts-ipafont-gothic
>> 
>> In your snapcraft.yaml file instead of just using including the jre.
>> 
>> If this is your complete snapcraft.yaml file, you may also need:
>>>     plugs: [home, x11, opengl, network, unity7]
>> or a subset of these.
>> 
>> There are some limitations with Java that I've found.
>> 
>> Here is my wrapper:
>>> #!/bin/bash
>>> 
>>> # Not good, needed for fontconfig
>>> export XDG_DATA_HOME=$SNAP/usr/share
>>> # Font Config
>>> export FONTCONFIG_PATH=$SNAP/etc/fonts/config.d
>>> export FONTCONFIG_FILE=$SNAP/etc/fonts/fonts.conf
>>> export HOME=$SNAP_USER_DATA
>>> 
>>> export LIBGL_DRIVERS_PATH=$SNAP/usr/lib/x86_64-linux-gnu/dri
>>> export LIBVA_DRIVERS_PATH=$SNAP/usr/lib/x86_64-linux-gnu/dri
>>> export LIBGL_DEBUG=verbose
>>> 
>>> export PATH=$PATH:/usr/local/bin
>>> 
>>> java -Dswing.defaultlaf=javax.swing.plaf.nimbus.NimbusLookAndFeel 
>>> -Duser.home=$HOME -Dsun.java2d.opengl=true -jar 
>>> $SNAP/jar/torgo-1.4.1.jar "$@"
>> 
>> You must set the user.home directory this way for the application to 
>> work (unless this has been fixed).
>> 
>> As far as updating gradle.  Put in a LaunchPad bug and register an 
>> Issue.  While I added the gradlew plugin, I am not a gradle user, so 
>> I can definitely work on adding/fixing work.
>> 
>> If the application tries to use xdg-open or open a web-browser, 
>> there are more fixes that are needed in my experience.
>> --
>> Matt
>> 
>> On Thu, Dec 29, 2016 at 4:46 AM, Felix Natter <fnatter at gmx.net> 
>> wrote:
>>> Dear snapcraft experts,
>>> 
>>> I am creating a simple snap for a java application:
>>> 
>>> BTW: My original post is here:
>>> http://askubuntu.com/questions/865090/simple-java-snap-with-jre-dependency
>>> 
>>> name: freeplane-snap
>>> version: 1.5.18-1
>>> summary: Java program for working with Mind Maps
>>> description: ...
>>> confinement: devmode
>>> grade: stable
>>> 
>>> apps:
>>>   freeplane-snap:
>>>     command: ./freeplane.sh
>>> 
>>> parts:
>>>   main:
>>>     plugin: dump
>>>     source: freeplane-1.5.18/
>>>     stage-packages: [openjdk-8-jre]
>>>     filesets:
>>>       mybuild:
>>>         - "*"
>>>     stage:
>>>       - $mybuild
>>>     snap:
>>>       - $mybuild
>>> 
>>> Freeplane uses a gradle build system, but the snapcraft gradle 
>>> plugin is
>>> not powerful enough (expects "gradlew" to be there and not 
>>> "gradle", and
>>> is used for single jar projects, i.e. always with 'jar' option). 
>>> Where
>>> can I submit feature requests / patches for this?
>>> 
>>> So I am using the project's binary distribution (unzipped to
>>> ./freeplane-1.5.18) with the 'dump' plugin, which works well. 
>>> However,
>>> since I'm not using a java build system, the jre is missing in the 
>>> snap
>>> (when running "freeplane-snap" I get an error that the JDK cannot be
>>> found, NOT when running freeplane.sh directly). I tried to add it 
>>> with
>>> 'stage-packages: [openjdk-8-jre]' but this did not help.
>>> 
>>> Could you please tell me how to add the jre to the mix?
>>> 
>>> One more question: Hearing about this containment stuff, is it
>>> possible/feasible (using plugs?) to to create a desktop application 
>>> that
>>> can read and write (mind maps) from/to everywhere, just like a 
>>> normal
>>> .deb? (like plugs: [network, home, tmp]?)
>>> I also need to install the desktop file and mime type mappings to
>>> /usr/share/... --> I assume I can do this with separate parts?
>>> 
>>> Many Thanks and Best Regards,
>>> --
>>> Felix Natter
>>> 
>>> --
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