stencila/stencila

Living documents for reproducible research

Finlay Thompson

@finlay

Can I keep bothering you with questions ?

Nokome Bentley

@nokome

Sure

:thumbsup:

Finlay Thompson

@finlay

nixster enter drops you into a shell right ?

is that something like nix-shell ?

Nokome Bentley

@nokome

Yes correct x 2

Finlay Thompson

@finlay

So, just looked at the code. I can run it in --pure=false mode

and it does what I think it does right ?

nixster enter --pure=false readxml

Nokome Bentley

@nokome

Yeah, with pure=false it adds to the PATH

Finlay Thompson

@finlay

yeah, which can be good and bad, obviously

Nokome Bentley

@nokome

    let PATH = `${location}/bin:${location}/sbin`
    if (!pure) PATH += ':' + process.env.PATH

where location is the location of the env

Finlay Thompson

@finlay

it has created a biggish sqlite3 file locally ?

Is that necessary ?

Nokome Bentley

@nokome

Yes, that sqlite3 file should go next to node_modules - it's app level data

Finlay Thompson

@finlay

let me see ....

hmm, it has saved in my cwd

Nokome Bentley

@nokome

Yes, currently it is in cwd but we need someone to write a ticket to remind us to put it elsewhere :)

Finlay Thompson

@finlay

stencila/nixster#46

Nokome Bentley

@nokome

It's size can be reduced by only populating with package data for one channel e.g. delete the db and do nixster update nixos-18.09

Finlay Thompson

@finlay

Okay, more questions for you....

https://nixos.org/nixpkgs/manual/#users-guide-to-the-haskell-infrastructure

The nix packages in haskell space are all under a sub attribute

I wonder how I can reference them ?

Nokome Bentley

@nokome

Yes, when we populate the database we create (hopefully) easier names

Let me just get my local version running again....and I'll give more info

Finlay Thompson

@finlay

So, how can I find the haskellPackages.xeno package...

It is there

Finlay Thompson

@finlay

poping out to get some lunch

Nokome Bentley

@nokome

OK, looks like we need to do something special for haskell packages...like this....

https://github.com/stencila/nixster/blob/master/src/nix.ts#L89

Finlay Thompson

@finlay

Yes! That is what it needs

Nokome Bentley

@nokome

I've just done that, and it's currently building on Travis:

nixster search 'xml' --type haskell-package
    haskell-aws-sdk-xml-unordered  0.3.1      The xml parser for aws-sdk package
    haskell-berkeleydbxml          0.7.2      Berkeley DB XML binding
    haskell-blastxml               0.3.2      Library for reading Blast XML output
    haskell-data-stm32             0.1.0.0    ARM SVD and CubeMX XML parser and pretty printer for STM32…
    haskell-dom-selector           0.2.0.1    DOM traversal by CSS selectors for xml-conduit package
    haskell-dtd-text               0.1.2.0    Parse and render XML DTDs
    haskell-dtd-types              0.3.0.1    Basic types for representing XML DTDs

Finlay Thompson

@finlay

perfect

Nokome Bentley

@nokome

Check the releases page in a minute or two for the new binary

Finlay Thompson

@finlay

stencila/nixster#47

I just added an issue to close, when I have tested it

Nokome Bentley

@nokome

Great, thanks

Finlay Thompson

@finlay

I am going into a couple of hours of meetings nowish, so I'll be back to try this later...

@nokome thanks for your help...

I feel a blog post coming on...

Nokome Bentley

@nokome

OK, thanks Finlay!

Finlay Thompson

@finlay

Back again....

Nokome Bentley

@nokome

:wave:

Finlay Thompson

@finlay

Trying to find the haskell libraries ?

yeah, works!

nixster create readxml --adds haskell-xeno --adds haskell-cabal-install --adds haskell-cassava

Nokome Bentley

@nokome

Does that work? Is it not nixster create readxml --adds haskell-xeno haskell-cabal-install haskell-cassava

In any case editing the YAML is probably easiest once it is created

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