[Pkg-javascript-devel] Bug#941700: Bug#941700: Bug#941700: Update babel to version 7

[Pirate Praveen]

On Sun, Oct 6, 2019 at 15:18, Pirate Praveen <praveen at onenetbeyond.org> 
wrote:
> On Fri, 04 Oct 2019 11:27:58 +0530 Pirate Praveen
> <praveen at onenetbeyond.org <mailto:praveen at onenetbeyond.org>> wrote:
>>  We already started the update work, but since it needs gulp 4, we 
>> are stuck (we are not able to fix gulp 4 errors). Alternatively we 
>> could try to skip gulp.
> 
> With gulp 4.0.2-3,
> 
> gulp build
> [14:53:55] Local gulp not found in 
> ~/forge/debian/git/js-team/node-babel
> [14:53:55] Try running: npm install gulp
> [14:53:55] Using globally installed gulp
> [14:53:55] Using gulpfile 
> ~/forge/debian/git/js-team/node-babel/Gulpfile.js
> [14:53:55] Starting 'build'...
> [14:53:55] Starting 'build-rollup'...
> [14:53:55] Starting 'build-babel'...
> [14:53:55] Compiling 'packages/babel-parser/src/index.js' with rollup 
> ...
> [14:53:55] 'build-rollup' errored after 42 ms
> [14:53:55] ReferenceError: [BABEL]
> /home/pravi/forge/debian/git/js-team/node-babel/packages/babel-parser/src/x.js:
> Unknown option: base.envName. Check out
> <http://babeljs.io/docs/usage/options/> for more information about 
> options.
> 
> A common cause of this error is the presence of a configuration 
> options
> object without the corresponding preset name. Example:
> 
> Invalid:
>   `{ presets: [{option: value}] }`
> Valid:
>   `{ presets: [['presetName', {option: value}]] }`
> 
> For more detailed information on preset configuration, please see
> <http://babeljs.io/docs/plugins/#pluginpresets-options>.
>     at Object.error [as default]
> (/usr/share/nodejs/rollup/src/utils/error.js:10:15)
>     at Object.error 
> (/usr/share/nodejs/rollup/src/utils/transform.js:59:36)
>     at /usr/share/nodejs/rollup/src/utils/transform.js:68:29
>     at process._tickCallback (internal/process/next_tick.js:68:7)
> [14:53:55] 'build' errored after 45 ms
> [14:53:55] The following tasks did not complete: build-babel
> [14:53:55] Did you forget to signal async completion?
> make[3]: *** [Makefile:13: build] Error 1
> make[3]: Leaving directory 
> '/home/pravi/forge/debian/git/js-team/node-babel'
> 
> 
> As per <https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=929829#27>
> rollup-plugin-babel needs update 3.0.3 => 4.3.2

This won't work for us as rollup-plugin-babel 4 will need babel 7 
anyway. And the error is coming from gulp-babel I think. We will have 
to adapt the Gulpfile.js to work with gulp-babel 7.

Evgeny, can you help here. I tried a bit but I'm not very good at 
writing JS code.

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