Make raw PEM cert bundle string public

[yosh]

This just makes the PEM cert bundle accessible to users of this library. I found this useful in conjunction with private CAs generated out of Go programs. The other languages supported in the project already support this, since a .crt file is simply shipped with them.

[mattrobenolt]

Maybe this would be better as a function call instead that returned the private variable. Just in case.

func RawCertificates() string {
  return pemcerts
}

Or similar. I'm not crazy about the name.

[yosh]

I went with CACertsAsPEM to be more explicit, but I'm not too crazy about any of these names either.

[mattrobenolt]

@yosh I plan on bringing this in soon. I added some work to maintain a v1 tag and have the certs autoupdate. I'll bring this in with that.

[yosh]

Cool, sounds good.

[dolmen]

Maybe this would be better as a function call instead that returned the private variable.

This isn't a variable but a constant. So there is no risk of corruption.

[dolmen]

@yosh If you only need the certificate string I recommend instead to just take gen.go into your project and adapt it to your need.

[dolmen]

I'm against this change because that would expose the format of the list of root certificates which is currently a string but could another format (pre-parsed) in the future.

As I wrote above, users who need the certificate string could as well just take gen.go into their project and adapt it to their need.

Also I don't think there is many users who need both the CACerts() API and a string API in the same program.

[yosh]

I no longer actively develop the project that necessitated this, so I don't really have a strong opinion here. Happy to just close out this PR unmerged if that's consensus.