[josm-dev] Lean JOSM - one-language trimmed down builds of JOSM

[Shaun McDonald]

I'll presume that all the GB should be replaced with MB, unless of  
course someone has managed to sneak in almost the whole planet into  
the jar file.

Shaun

On 1 Nov 2009, at 04:00, Frederik Ramm wrote:

> Hi,
>
>    a while ago I complained about the .jar file having grown to 5.5 GB
> (meanwhile, over 6 GB), partly due to language support but also due to
> other kinds of feature creep.
>
> Having recently had the pleasure (again) to download JOSM over a slow
> connection, I decided to do something about this myself, and have  
> set up
> an alternative JOSM distribution I'm calling "Lean JOSM" for now.
>
> Initially I'm just building a few one-language versions (a one- 
> language
> version is about 3 GB in size, compared to 6 GB of the full jar  
> file). I
> will start to make my own analysis of "usefulness vs. size" and drop
> some features that I consider unimportant - as a first start, I have
> disabled bzip2 reading and writing.
>
> Lean JOSM does not have extra Java code - it is just a different way  
> of
> packing things into a jar file (specifically, some "excludes" and
> "includes" in the build.xml). Where changes to the code are required  
> to
> accomodate Lean JOSM, and as long as these don't interfere with normal
> JOSM operations, I hope to be able to make these changes in the  
> standard
> JOSM code (as in http://josm.openstreetmap.de/changeset/2367 where I
> changed the ExtensionFileFilter so that it does not break when bzip2  
> is
> not available). I expect that some things I find while trying to slim
> down the jar file will be useful for standard JOSM as well (like
> pngcrushing all the image files which I just did).
>
> The goal is to create a variant of JOSM that serves 80% of users well
> but uses significantly less space.
>
> Lean JOSM can be downloaded from josm.geofabrik.de. Builds should be
> roughly in sync with the main JOSM site. There's no "-tested" yet  
> but I
> plan to introduce that as well. If Lean JOSM works well and becomes
> popular then we can perhaps move it to the main JOSM site some time.
>
> I'm not announcing this on talk yet, I'll just let it run for a while
> and see how it works. Let me know if you have any comments. If anyone
> wants a one-language build for their language, I can add that easily  
> (at
> the moment I'm just doing en and de).
>
> Bye
> Frederik
>
> PS: Is it possible to build a JOSM version that supports *only*  
> language
> X and not English, or is support for English always built-in due to  
> the
> way we do our I18N? Could I perhaps run a preprocessor to replace the
> built-in English texts by translations and then kill the whole I18N
> overhead?
>
> -- 
> Frederik Ramm  ##  eMail frederik at remote.org  ##  N49°00'09"  
> E008°23'33"
>
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