[Pkg-javascript-devel] Problems to recreate minimized JS in r-cran-jsonld

[David I. Lehn]

On Wed, May 9, 2018 at 5:35 AM, Andreas Tille <andreas at fam-tille.de> wrote:
> I was stumbling upon an issue with some minimized JS in the package
> r-cran-jsonld (ITPed in #898224).  I tried to recreate jsonld.min.js and
> have written a script[1] which calls webpack in a clone of the Github
> reporsitory.  Unfortunately the webpack call ends in:
>
> webpack-merge at 4.1.2 node_modules/webpack-merge
> └── lodash at 4.17.10
> ...
>     ERROR in multi regenerator-runtime/runtime core-js/fn/array/includes core-js/fn/object/assign core-js/fn/promise core-js/fn/string/starts-with core-js/fn/symbol ./lib/index.js
>     Module not found: Error: Can't resolve 'babel-loader' in '/home/andreas/debian-maintain/salsa/r-pkg-team/0_prospective/r-cran-jsonld/debian/JS/jsonld.js'
>      @ multi regenerator-runtime/runtime core-js/fn/array/includes core-js/fn/object/assign core-js/fn/promise core-js/fn/string/starts-with core-js/fn/symbol ./lib/index.js
> ...
> Any idea how to get the minimized JS?  Simply taking the non-minimized
> jsonld.js does not work.  The file size of this uncompressed file is way
> smaller than the minimazion result and doese not work together with the
> R code.  Thus I really need to undergo the process to create the
> minimized JS.
>
> Any idea how to approach this?
> ...
> [1] https://salsa.debian.org/r-pkg-team/r-cran-jsonld/blob/master/debian/JS/get-jsonld.min
>

Hi, I'm an upstream developer for jsonld.js and the one to blame for
the webpack config. ;-)  I'm getting 404 on that salsa repo so I'm not
sure what your script is doing.  In npm world you can build
jsonld.min.js with "npm install && npm run build-webpack".  That's how
it's published to npm.  I've never tried building with apt installed
modules.  If upstream changes would help make this all easier, let me
know.

-dave