Added less block

[viktor-nikolaev]

Added less block.
@kirill-konshin please test the block since I can't do it for a while.

[kirill-konshin]

Most importantly, the plugin does not work with Extract Text block, the output is just a string in JS bundle, SASS block does not work with it as well: #115.

Second, adding sourceMap: true to options produces error:

ERROR in ./~/css-loader?sourceMap!./~/less-loader?{"sourceMap":true}!./src/styles.less
Module build failed: TypeError: Path must be a string. Received undefined

[kirill-konshin]

Regarding the issue with extractText (#115) - documentation needs to be fixed.
Source map error also happens in SASS block too: #116.

[kirill-konshin]

This can be merged now since #116 has been fixed with #119.

[andywer]

Can you please check which linting issues make the build fail?

I will have a look at it myself, but right now I am busy working on the new API (#125).

[sapegin]

@andywer Do we want this in the core? I’d suggest to keep it as a third-party block since Less is way less popular that Sass.

[andywer]

Since nobody complained recently... I suppose it would make more sense to keep it as a 3rd-party block.
@kirill-konshin Are you interested in publishing it as your own repo/package?

[kirill-konshin]

I don't mind, just tell me how should I take over it.

P.S. I personally think that official support of Less is also a very nice to have thing along with official support of Sass. I use both actually, in different projects, because of different advantages.

[andywer]

Sure and I would appreciate it a lot if you would find some time to publish a less block under your own flag, nevertheless. It is still important and I will tweet about it.

We will advertise your block here, too, don't worry. I know I keep saying this for far too long, but we shall have an official list of 3rd-party blocks in a prominent place soon :)

[sapegin]

I could find around 6 third-party blocks on npm, so Readme could be a good place to start — I can send a PR.

[andywer]

Sure, let's just put it into the readme for now!

[sapegin]

@kirill-konshin Are you still interested in making a third-party block for Less?

[kirill-konshin]

Yes. I will publish it today/tomorrow. What's the naming convention?

[sapegin]

webpack-blocks-less would work — https://github.com/andywer/webpack-blocks/tree/release/1.0#third-party-blocks

[kirill-konshin]

https://www.npmjs.com/package/webpack-blocks-less published almost as is based on this PR. Contributions are welcome. This PR can be closed, but please, add a reference to README then...

[sapegin]

@kirill-konshin Awesome! You need to update an example in readme and repository field in package.json — they still point to webpack-blocks repo.

And feel free to send a PR to add a link to our Readme ;-)