Template support for additional functions about go-gh HOT 3 CLOSED

@heaths Allowing the template package to be extendable sounds like a good idea to me. I am thinking something like:

func (t *Template) RegisterFunc(name string, f func(fields ...interface{}) (string, error)) error

Where the RegisterFunc would add the new function to t.templateFuncs which is not stored on the Template struct yet, but could be added there. What do you think?

This could even be used to override default template functions if we want to allow that behavior.

from go-gh.

Go stdlib already supports templating with extensible functions in its text/template package. Why would we replicate that functionality?

The reason why we've publicized our pkg/template is to give extension authors access to the --template functionality from CLI. But if other kind of functionality is needed, one that doesn't exist in --template, my suggestion for extension authors would be just to drop down to stdlib text/template.

from go-gh.

The point would be to get all the functions that CLI already defines for use in extensions. That's what I had to do with one of my extensions because I can't add some others. Overriding a function isn't really a major goal, but figured "just in case".

from go-gh.