Source Map support

[igorbernstein]

It would be nice if sprockets pipeline was able to handle SourceMaps.
http://www.html5rocks.com/en/tutorials/developertools/sourcemaps/

Google's closure compiler already supports them & It seems like uglifyjs & coffeescript are working on generating them:
jashkenas/coffeescript#558 (comment)
mishoo/UglifyJS#315

[sstephenson]

Absolutely.

Step 1 is generating source maps for asset bundles. We should be able to do this now.

Step 2 is integrating with compilers that produce source maps. This will require more work (and we need to wait on compiler support first).

[josh]

Yup.

[josh]

Started a branch for this.

[leckylao]

👍 for the hard work https://github.com/sstephenson/sprockets/tree/source-maps

[leckylao]

@sstephenson @josh, BTW, for step 1, how do I generate source map for assets?

[lessless]

@sstephenson will sprockets create source map for concatenated code?

[Goltergaul]

+1 whats the progress on this?

[filipegiusti]

I'm also interested in the progress of this. Anything I can do to help?

[sleung-ttc]

looks like its still work in progress... I am excited about this!
#625

[elia]

@sleung-ttc checkout the v4 branch

[gkatsanos]

@elia can we safely use the 4.0 branch if we're really desperate ?

[elia]

@gkatsanos no idea, not using it on any app, you should ask @josh

[gkatsanos]

@elia What I'd like to ask if if there's some idea on when we're gonna have it :) I am still under the shock of realizing there's no proper SASS debugging possibility for one of the most hyped frameworks. @josh

[elia]

Don't know much more than this: #643

[veryeasily]

has this issue been resolved? it appears like no...

[halilim]

Looks like the latest work is happening at rails#206.