Snapcraft and Java - experimental

[Ricardo Salveti de Araujo]

Also adding snappy-devel.

We just merged quite a few useful merge requests today, including one
that extends our current documentation for it.

The project can be found at https://launchpad.net/snapcraft, and we
also have one PPA at
https://launchpad.net/~snappy-dev/+archive/ubuntu/snapcraft-daily that
includes the latest Ubuntu packages for Snapcraft (in case you want to
give it a try).

Please check the following links for further information (we should
have a page at https://developer.ubuntu.com/snappy soon as well):
http://bazaar.launchpad.net/~snappy-dev/snapcraft/core/view/head:/README.md
http://bazaar.launchpad.net/~snappy-dev/snapcraft/core/view/head:/docs/intro.md
http://bazaar.launchpad.net/~snappy-dev/snapcraft/core/view/head:/docs/tutorial.md

There are a few interesting examples already at
http://bazaar.launchpad.net/~snappy-dev/snapcraft/core/files/head:/examples/.
By calling snapcraft under an example folder you can get the feeling
about what is happening underneath.

We are also actively working on producing a container that will offer
a snapcraft development environment by default (hopefully to be
released over the next few days), so you can easily run snapcraft at
your target.

Enjoy!

On Mon, Aug 3, 2015 at 10:45 PM, Mark Shuttleworth <mark at ubuntu.com> wrote:
>
> The two core ideas for snapcraft are:
>
> First, a universal meta-build system that allows you to pull together
> wildly different types of source code and build your app together with
> all its dependencies. So for example you might download and build the
> javascript runtime you want, together with the JRE and various Java
> files, adding in a bunch of python for a sub-command and Go for another.
> snapcraft lets you define handlers for classes of content, and it comes
> with handlers for common project types like "github automake projects"
> or "go projects" or "apache maven projects". Each of these can have
> completely different build systems or make files; the handler takes care
> of all that.
>
> We know that most cool stuff is moving far faster than the packaging
> system, so snapcraft is designed to work directly from source wherever
> you need, handling every type of source project from github or
> elsewhere, and then mix in debs where that makes sense. We took a lot of
> inspiration from the catkin tools in the ROS project, and we're keen for
> feedback from the widest audience. Just yesterday we had a good bug
> report asking for a cleanroom build as well as cross-build support,
> which is very useful insight.
>
> Second, in order to enable people to go faster, we want to have a
> library of pre-defined upstream source "parts". In snapcraft you
> describe each of these parts, defining which handler to use and any
> parameters like the version control URL and tag to use. We figure it
> would be most useful to have many of those defined in a shared space, as
> parts that you can just invoke by name. So "libreadline" as a named part
> in your snap would be the source equivalent of "apt-get install
> libreadline-dev". This idea of an apt-like system for commonly shared
> source parts is particularly cool.
>
> Happy snappying,
> Mark
>
> On 03/08/15 10:12, Maarten Ectors wrote:
>> Many developers are surprised to see how easy it is to create a hello world
>> Snappy App. However when you go and create a complex application, packaging
>> it as a Snap becomes harder. This is why we launched Snapcraft
>> <https://launchpad.net/snapcraft>. Snapcraft allows anybody to create
>> plugins to support their favourite programming language, platform,
>> packaging solution, etc. Snapcraft is still experimental but with your help
>> we can make it super easy for anybody to create snaps in any language and
>> for any platform.
>>
>> As a preview here you can see how easy it is to package a JDK, Tomcat and
>> your favourite war:
>> https://insights.ubuntu.com/2015/08/03/java-on-snappy/
>>
>> If you like Snapcraft, please upvote the blog post on Hacker News:
>> https://news.ycombinator.com/item?id=9994563
>>
>
>
>
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-- 
Ricardo Salveti de Araujo