Add support for the CUE language & Cue Sheet

[zchee]

This PR adds support for the CUE language.

Description

Checklist:

• I am adding a new language.
  • The extension of the new language is used in hundreds of repositories on GitHub.com.
    • Search results for each extension:
      • https://github.com/search?utf8=%E2%9C%93&type=Code&ref=searchresults&q=extension%3Acue+package+NOT+nothack
  • I have included a real-world usage sample for all extensions added in this PR:
    • Sample source(s):
      • https://github.com/cuelang/cue/blob/3bdfa5d10b6bc232241eb84d7a0b7761b806bac1/cue.mod/pkg/github.com/SchemaStore/schemastore/src/schemas/json/github-workflow.cue
        • Sample license(s): Apache-2.0 License
      • https://github.com/cuelang/cue/blob/447606047bdd32f79029a4be5424af3a09ea15f2/doc/tutorial/kubernetes/quick/services/kube.cue
        • Sample license(s): Apache-2.0 License
      • https://github.com/zchee/CueSheet-Sample/blob/9cb7d9acb6f5a09602523cbcd83cdd59ec5e3b0c/example1.cue
        • Sample license(s): Apache-2.0 License
      • https://github.com/zchee/CueSheet-Sample/blob/9cb7d9acb6f5a09602523cbcd83cdd59ec5e3b0c/example2.cue
        • Sample license(s): Apache-2.0 License
  • I have included a syntax highlighting grammar:
    • samples/CUE/kube.cue (Apache-2.0 License): https://github-lightshow.herokuapp.com/?utf8=%E2%9C%93&scope=from-url&grammar_format=auto&grammar_url=https%3A%2F%2Fgithub.com%2Fcue-sh%2Fvscode-cue%2Fblob%2F7bd21882dc0e5299271597f18f2740394714cfea%2Fsyntaxes%2Fcue.tmLanguage.json&grammar_text=&code_source=from-url&code_url=https%3A%2F%2Fgithub.com%2Fcuelang%2Fcue%2Fblob%2F447606047bdd32f79029a4be5424af3a09ea15f2%2Fdoc%2Ftutorial%2Fkubernetes%2Fquick%2Fservices%2Fkube.cue&code=
    • samples/CUE/github-workflow.cue (Apache-2.0 License): https://github-lightshow.herokuapp.com/?utf8=%E2%9C%93&scope=from-url&grammar_format=auto&grammar_url=https%3A%2F%2Fgithub.com%2Fcue-sh%2Fvscode-cue%2Fblob%2F7bd21882dc0e5299271597f18f2740394714cfea%2Fsyntaxes%2Fcue.tmLanguage.json&grammar_text=&code_source=from-url&code_url=https%3A%2F%2Fgithub.com%2Fcuelang%2Fcue%2Fblob%2F3bdfa5d10b6bc232241eb84d7a0b7761b806bac1%2Fcue.mod%2Fpkg%2Fgithub.com%2FSchemaStore%2Fschemastore%2Fsrc%2Fschemas%2Fjson%2Fgithub-workflow.cue&code=
    • samples/Cue Sheet/sample1.cue (Apache-2.0 License): https://github-lightshow.herokuapp.com/?utf8=%E2%9C%93&scope=from-url&grammar_format=auto&grammar_url=https%3A%2F%2Fgithub.com%2Frelikd%2FCUE-Sheet_sublime%2Fblob%2F43c66ef78749b2ccf927159a568ed988ddda98dd%2FCUE%2520Sheet.tmLanguage&grammar_text=&code_source=from-url&code_url=https%3A%2F%2Fgithub.com%2Fzchee%2FCueSheet-Sample%2Fblob%2F9cb7d9acb6f5a09602523cbcd83cdd59ec5e3b0c%2Fexample1.cue&code=
      • https://github.com/zchee/CueSheet-Sample
    • samples/Cue Sheet/sample2.cue (Apache-2.0 License): https://github-lightshow.herokuapp.com/?utf8=%E2%9C%93&scope=from-url&grammar_format=auto&grammar_url=https%3A%2F%2Fgithub.com%2Frelikd%2FCUE-Sheet_sublime%2Fblob%2F43c66ef78749b2ccf927159a568ed988ddda98dd%2FCUE%2520Sheet.tmLanguage&grammar_text=&code_source=from-url&code_url=https%3A%2F%2Fgithub.com%2Fzchee%2FCueSheet-Sample%2Fblob%2F9cb7d9acb6f5a09602523cbcd83cdd59ec5e3b0c%2Fexample2.cue&code=
      • https://github.com/zchee/CueSheet-Sample
  • I have updated the heuristics to distinguish my language from others using the same extension.

---

TODO

• Add "Cue Sheet" language support

[zchee]

/cc @mpvl @myitcv

[myitcv]

@zchee wonderful!

Cross referencing #5013

@lildude any pointers/additional things we should consider as part of this PR?

[lildude]

@lildude any pointers/additional things we should consider as part of this PR?

Yes... #5013 (comment)

[zchee]

@lildude ah, What should I do? edit https://github.com/github/linguist/blob/master/lib/linguist/heuristics.yml ...?

[lildude]

What we will need is for cue sheet to be added as part of this PR too so this PR will then implement the two most prominent languages that currently use the .cue extension on GitHub.

I don't think a heuristic will be needed as the two languages are quite distinct so the classifier should be able to differentiate between the two. Adding two good samples of each would certainly help.

So to put it into points of things to do in this PR:

• Add support for "Cue Sheet" as a new data language
• Add two cue sheet samples
• Add another CUE sample

[zchee]

@lildude thanks for very details reply. and I understand all.

Adding two good samples of each would certainly help.

also got it.

will do and mention to you after done.

---

However, I have one question about "cue sheet" side.

Add support for "Cue Sheet" as a new data language

I didn't googling yet, but if there is no highlighting metadata for "cue sheet", what should I do? write tm file even I don't know "cue sheet" syntax...?

[zchee]

@lildude added Cue Sheet language support. PTAL.

[zchee]

@lildude sorry, fixed CI error. PTAL again.

[lildude]

Thanks for adding the Cue Sheet support.

Can you please rename it to use titlecase as I've commented inline. You'll need to rename the directory holding the samples too.

Can you please also update the template to link to the source of all four of the samples in this PR and state the license for each file.

🙇

[zchee]

@lildude thanks, will fix

[zchee]

@lildude PTAL.

[lildude]

😍 Thanks @zchee.

You've just missed the last release so GitHub.com won't gain support until the next release is made which will be in about a month's time.

[zchee]

@lildude Thanks a lot!