cmd/cue: generate Go code from CUE

[mpvl]

Or really any programming language, but Go is a good first target.

• Generate Go structs (with comments) from CUE definitions
• Generate validation code given the CUE constraints defined on these definitions (well, its the same thing in CUE, but for Go it needs to be split out)

[tredoe]

This would be a great feature.
At my case, I'm exporting the Cue file to Json, for then to use 'jsonutil' (https://github.com/bashtian/jsonutils) to generate the Go struct where I load the Json data.

Now, I'm using Cue to deal with configuration files and it's the best tool that I've tried. But I've in mind to use it at data validation.

Congratulations!

[mpvl]

Thanks for your kind words.

Interesting, I expected the code generation aspect would be more desirable. So note that in the mean time there is https://godoc.org/cuelang.org/go/encoding/gocode, which gets you part of the way. But that assumes the schema are already defined.

Generating just the structs should be quite straightforward, though. That would also allow you to retain documentation. It would be implemented using the above-mentioned API. This could then be used to implement a command line feature in the cue tool.

[cueckoo]

This issue has been migrated to cue-lang/cue#6.

For more details about CUE's migration to a new home, please see cue-lang/cue#1078.