Re: [ptxdist] Integration of node.js

[Alexander Raimondi <raimondi@miromico.ch>]

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Hi Jean-Claude

Yes, I can give you my current work state. It is attached as tar.gz

You will find:
- A patch that will add support for node.js to a local project (not 
into ptxdist itself)
- A local_src directory with a build script

Everything is based on ptxdist 14.1.0 (from phytec)

Some comments
- I only tested node +ssl +npm (no ssl doesn't compile for some reason)
- It will also add a host node package. This is necessary to build 
node_modules for the target on the host. This should probably be moved 
into cross section.
- npm on the target works, as long as it doesn't want to compile 
anything.
- My procedure to get node_modules on the target is: extract local_src 
from tar.gz into your project. Use the ./build_module.sh with a list of 
module required on target (e.g. ./build_module.sh can socket.io ejs) and 
move the node_modules directory to the target

This currently works for me. Things to do:
- Creation of node modules withing ptxdist (E.g. through node 
application in ptxdist with a dependency list)
- More important: How to strip down node.js and node_modules (Remove 
documentation, sources, ... not needed on a embedded target)

Hope this helps. Any feedback is appreciated.

Alex

On 2014-12-09 11:04, Jean-Claude Monnin wrote:
> Hi Alex,
>
> I would like to integrate node.js in my image.
> Would it be possible to share your existing rules (even if it’s in a
> unfinished state)?
>
> Thanks,
> Jean-Claude
>
>> On 21 Nov 2014, at 08:27, Alex Raimondi <raimondi@miromico.ch> 
>> wrote:
>>
>> Hi
>>
>> I am working on adding nodejs to ptxdist. I use ptxdist to 
>> crosscompile my ARM based linux.
>>
>> I already succeeded in crosscompiling the nodejs base package and it 
>> works on the target.
>>
>> Node.js is special in some kind. To add extra modules it uses its 
>> own packet manager "npm". Some packages will build some binaries right 
>> on the target system upon installing. This will not work on a cross 
>> compiled target (with no compilers installed)
>>
>> So my approach is to allow the user to select additional modules and 
>> cross compile these modules on the host.
>>
>> So I guess I also need to build nodejs for the host to get my hands 
>> on the npm package manager. I created a host-node package and it 
>> successfully compiles.
>>
>> About the next steps I am unsure how to do that:
>>
>> - My host-node package currently does fetch/prepare/compile. What do 
>> I need to do in install or targetinstall? Currently my host-node gets 
>> installed into platform-XXX/sysroot-host
>>
>> - I need to use host built npm in (target) node to fetch modules. 
>> How do I correctly access the npm package manager?
>>
>> Is there any documentation about host tools usage? What is the 
>> meaning of cross tools?
>>
>> Thanks for any hint
>>
>> Best regards
>> Alex Raimondi
>>
>>
>> --
>> ptxdist mailing list
>> ptxdist@pengutronix.de

-- 
Mit freundlichen Grüssen

Alex Raimondi

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