[Proposal] Requiring Go 1.2 across the board

[Andrew Wilkins]

On Fri, May 16, 2014 at 3:08 PM, David Cheney <david.cheney at canonical.com>wrote:

> Hello,
>
> This is a proposal that we raise the minimum Go spec from Go 1.1 to Go 1.2.
>
> Motivation:
>
> * Now that T is out, we have to support Juju on two series (Precise
> and Trusty[1]) with two compilers, gc and gccgo.
> * gccgo-4.9, which is version we using in trusty, supports the Go 1.2 spec
> * gc-1.1.2 which is available in a ppa for precise, obviously supports Go
> 1.1
> * gc-1.2.1 is the shipping compiler on Trusty, it supports Go 1.2
>
> So now we have three compilers, two versions of gc, and one of gccgo.
>
> We are in the situation where code written for gccgo under T on ppc64
> or armv8 will not pass the bot running Go 1.1.1.
>
> For this reason I would like to reduce this matrix.
>
> Recommendation:
>
> * Get the trusty compiler into a backport ppa for precise[1]
> * Upgrade the bot to use that compiler, raising the minimum compiler
> spec to 1.2 across the board
>

SGTM. The bot will be changing soon to a Jenkins lander; seems like an
opportune time for making the change.


> Thoughts / Discussion / Spoiled fruit ?
>
> Dave
>
> [1] I am ignoring the intermediate, non LTS series', as there are no
> charms for them, nor do CTS offer support for them. If this is
> unacceptable, anything which applies to Precise wrt. backports, also
> applies to Q, R and S.
>
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