On Fri, Sep 13, 2019 at 7:36 AM Robert Johnstone
<r.w.johnst...@gmail.com> wrote:
> I'm looking at what I should do to keep my packages current with respect to 
> modules.  The tutorials have covered top-level packages, but I haven't seen 
> any discussions around low-level packages.  In particular, I have some 
> low-level packages that rely only on the standard library.  It's not clear 
> whether or not these packages should have a go.mod file.  At most, it would 
> specify the minimum version of go.  I don't see much impact on usability or 
> maintenance either way.
> For vendoring, it was best practice (?) that only top-level packages would 
> vendor.  I'm wondering if this rule applies to modules.

My understanding is that adding a go.mod file is a good idea even for
low-level libraries, in that it gives you a way to set a version
number for your library that your users will be able to use.  You can
then increment the version number as appropriate to indicate patches,
minor updates, or even major version updates.  See
https://blog.golang.org/migrating-to-go-modules for more background on
turning your library into a module.

Of course, if you plan to never change your library again, or if the
library has no users, then this doesn't matter.


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