[Pkg-javascript-devel] packaging and debuging of the javascript part of ipywidgets

picca picca at debian.org
Wed Dec 25 16:11:18 GMT 2024 

Hello,

Now I can build the widgetsnbextension using the Debian nodejs way. (not 
that hard... :)) (end of the email)

but I end up with strange error when building the jupyterlab_widgets 
extension.

webpack 5.97.1 compiled with 4 warnings in 7742 ms
Found debian/nodejs/python/jupyterlab_widgets/build
	cd ./python/jupyterlab_widgets && sh -ex 
../../debian/nodejs/python/jupyterlab_widgets/build
+ pkgjs-run build:prod

> @jupyter-widgets/jupyterlab-manager at 5.0.13 build:prod
> jlpm build:lib && jlpm build:labextension

Internal Error: root-workspace-0b6124 at workspace:.: This package doesn't 
seem to be present in your lockfile; run "yarn install" to update the 
lockfile
     at bN.resolve 
(/usr/share/nodejs/@yarnpkg/cli/bundles/yarn.js:206:13156)
     at Yy.resolve 
(/usr/share/nodejs/@yarnpkg/cli/bundles/yarn.js:141:1488)
     at /usr/share/nodejs/@yarnpkg/cli/bundles/yarn.js:211:7246
     at iw (/usr/share/nodejs/@yarnpkg/cli/bundles/yarn.js:140:52509)
     at le (/usr/share/nodejs/@yarnpkg/cli/bundles/yarn.js:211:7226)
     at /usr/share/nodejs/@yarnpkg/cli/bundles/yarn.js:211:7858

if I call by hand the jlmp build:labextension -> jupyter labextension 
build .

I get this error message:

+ jupyter labextension build .
Fail to get yarn configuration. Expecting value: line 1 column 1 (char 
0)
Fail to get yarn configuration. Expecting value: line 1 column 1 (char 
0)
Building extension in .
node:internal/modules/cjs/loader:1228
   throw err;
   ^

Error: Cannot find module 'license-webpack-plugin'
Require stack:
- /usr/share/nodejs/@jupyterlab/builder/lib/webpack-plugins.js
- /usr/share/nodejs/@jupyterlab/builder/lib/extensionConfig.js
- /usr/share/nodejs/@jupyterlab/builder/lib/build-labextension.js
     at Module._resolveFilename 
(node:internal/modules/cjs/loader:1225:15)
     at Module._load (node:internal/modules/cjs/loader:1051:27)
     at Module.require (node:internal/modules/cjs/loader:1311:19)
     at require (node:internal/modules/helpers:179:18)
     at Object.<anonymous> 
(/usr/share/nodejs/@jupyterlab/builder/lib/webpack-plugins.js:36:34)
     at Module._compile (node:internal/modules/cjs/loader:1469:14)
     at Module._extensions..js (node:internal/modules/cjs/loader:1548:10)
     at Module.load (node:internal/modules/cjs/loader:1288:32)
     at Module._load (node:internal/modules/cjs/loader:1104:12)
     at Module.require (node:internal/modules/cjs/loader:1311:19) {
   code: 'MODULE_NOT_FOUND',
   requireStack: [
     '/usr/share/nodejs/@jupyterlab/builder/lib/webpack-plugins.js',
     '/usr/share/nodejs/@jupyterlab/builder/lib/extensionConfig.js',
     '/usr/share/nodejs/@jupyterlab/builder/lib/build-labextension.js'
   ]
}

Node.js v20.18.1
/usr/lib/python3/dist-packages/jupyterlab/debuglog.py:56: UserWarning: 
An error occurred.
   warnings.warn("An error occurred.")
/usr/lib/python3/dist-packages/jupyterlab/debuglog.py:57: UserWarning: 
subprocess.CalledProcessError: Command '['node', 
'/home/picca/debian/python-team/packages/ipywidgets/python/jupyterlab_widgets/node_modules/@jupyterlab/builder/lib/build-labextension.js', 
'--core-path', '/usr/lib/python3/dist-packages/jupyterlab/staging', 
'/home/picca/debian/python-team/packages/ipywidgets/python/jupyterlab_widgets']' 
returned non-zero exit status 1.
   warnings.warn(msg[-1].strip())
/usr/lib/python3/dist-packages/jupyterlab/debuglog.py:58: UserWarning: 
See the log file for details: /tmp/jupyterlab-debug-vw96n9o9.log
   warnings.warn(f"See the log file for details: {log_path!s}")


@Yadd It seems to me that the node-license-webpack-plugin dependency is 
missing in the jupyterlab package. Right ?

If I add the dependency -> Halleluia !!! it build with only Debian 
packages (C'est Noël :))

BUT

the behaviour of the widgets are wrong...., So the final assemblage is 
not equivalent to the upstream one....





-- widget nbextension build log

dh_auto_build --buildsystem=nodejs
./lerna.json found

workspaces field found in package.json

/!\ examples/embed-amd/package.json not found
Unable to load examples/embed-amd
Found debian/nodejs/additional_components
Adding component(s): packages/output
Adding component(s): python/widgetsnbextension
Adding component(s): python/jupyterlab_widgets
Found debian/nodejs/packages/output/build
	cd ./packages/output && sh -ex 
../../debian/nodejs/packages/output/build
+ pkgjs-install-minimal
+ pkgjs-run build

> @jupyter-widgets/output at 6.0.10 build
> pkgjs run build:src


> @jupyter-widgets/output at 6.0.10 build:src
> tsc --build

Found debian/nodejs/python/widgetsnbextension/build
	cd ./python/widgetsnbextension && sh -ex 
../../debian/nodejs/python/widgetsnbextension/build
+ pkgjs-install-minimal
+ pkgjs-run build

> @jupyter-widgets/notebook-manager at 8.0.13 build
> pkgjs run build:nbextension


> @jupyter-widgets/notebook-manager at 8.0.13 build:nbextension
> webpack

asset extension.js 948 KiB [emitted] [minimized] [big] (name: main) 2 
related assets
orphan modules 463 KiB [orphan] 65 modules
runtime modules 1.72 KiB 9 modules
modules by path ../../../../../../../../usr/share/nodejs/ 2.22 MiB
   javascript modules 2.22 MiB 253 modules
   json modules 5.08 KiB
     
../../../../../../../../usr/share/nodejs/@jupyter-widgets/controls/package.json 
2.57 KiB [built] [code generated]
     
../../../../../../../../usr/share/nodejs/@jupyter-widgets/html-manage...(truncated) 
2.51 KiB [built] [code generated]
modules by path ./ 32.2 KiB
   modules by path ./src/ 31.5 KiB
     modules by path ./src/*.js 28.5 KiB 5 modules
     modules by path ./src/*.css 3.06 KiB 2 modules
   ./amd-public-path.js 647 bytes [built] [code generated]
   ./terminal-highlight (ignored) 15 bytes [built] [code generated]
+ 8 modules

WARNING in configuration
The 'mode' option has not been set, webpack will fallback to 
'production' for this value.
Set 'mode' option to 'development' or 'production' to enable defaults 
for each environment.
You can also set it to 'none' to disable any default behavior. Learn 
more: https://webpack.js.org/configuration/mode/

WARNING in asset size limit: The following asset(s) exceed the 
recommended size limit (244 KiB).
This can impact web performance.
Assets:
   extension.js (948 KiB)

WARNING in entrypoint size limit: The following entrypoint(s) combined 
asset size exceeds the recommended limit (244 KiB). This can impact web 
performance.
Entrypoints:
   main (948 KiB)
       extension.js


WARNING in webpack performance recommendations:
You can limit the size of your bundles by using import() or 
require.ensure to lazy load some parts of your application.
For more info visit https://webpack.js.org/guides/code-splitting/

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