[Pkg-javascript-devel] need help with building node-dagre-d3-renderer with webpack

[Pirate Praveen]

Control: tag -1 help

On Sat, 08 Jun 2019 20:48:32 +0500 Pirate Praveen
<praveen at onenetbeyond.org> wrote:> This library is a dependency of
gitlab. Since it uses babel and webpack
> to generate ES5 code, it is not suitable for embedding.

With node-d3 in NEW/salsa (#801765), I get this error. d3-format and
d3-scale is embedded in node-d3 and installed in
/usr/lib/nodejs/d3/node_modules. Because of missing ES modules in
node-d3-format (#930920) we cannot use the packaged version.


    ERROR in /usr/lib/nodejs/d3/index.js
    Module not found: Error: Can't resolve 'd3-format' in
'/usr/lib/nodejs/d3'
     @ /usr/lib/nodejs/d3/index.js 13:0-26
     @ ./lib/render.js
     @ ./index.js

    ERROR in /usr/lib/nodejs/d3/index.js
    Module not found: Error: Can't resolve 'd3-scale' in
'/usr/lib/nodejs/d3'
     @ /usr/lib/nodejs/d3/index.js 23:0-25
     @ ./lib/render.js
     @ ./index.js


I tried this patch (also tried /usr/lib/nodejs/d3/node_modules instead
of just node_modules), but webpack still fails. Upstream used webpack 4,
we have webpack 3.5.6, but that should not be an issue for resolving I
think.

$ cat debian/patches/use-modules-embedded-in-d3.patch
--- a/webpack.config.babel.js
+++ b/webpack.config.babel.js
@@ -15,7 +15,7 @@
   },

   resolve: {
-    modules: ['/usr/lib/nodejs'],
+    modules: ['/usr/lib/nodejs', 'node_modules'],
   },

   resolveLoader: {

The easiest fix would be updating node-d3-format, but it is not team
maintained any more (result of an accidental hijack from me). Other
option would be to fix webpack configuration. Hope someone can help here.

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