Add 10.2, including a "development" tag (to hopefully make it clear this is the "development release", not stable)

[tianon]

fixes #98

[yosifkit]

development has the "follows the development git branch" connotation; maybe alpha is better: https://downloads.mariadb.org/mariadb/10.2.1/?

Maybe we just need big warnings on the docs page?

[tianon]

I wanted alpha originally, but that's going to change to beta at some point and unless we're watching really diligently, we won't notice the change (see https://mariadb.com/kb/en/mariadb/what-is-mariadb-101/#list-of-all-mariadb-101-releases -- 10.1.2 was Alpha but 10.1.3 was Beta and 10.1.7 was RC). If there's an easy way for generate-stackbrew-library.sh to determine alpha/beta/etc. status for a given release version in an automated way, I'm definitely very +1 to using alpha instead.

[tianon]

I wonder if there's a more machine-friendly version of https://downloads.mariadb.org/mariadb/+releases/ somewhere.

[yosifkit]

Not sure about a machine readable version, but here is a fragile sample parser of the current page:

version=10.2; curl -fsSL https://downloads.mariadb.org/mariadb/+releases/ \
| awk '{ 
    if (match($0, /mariadb\/('"$version"'[^\/]*)\//, ver)) { c=1; print ver[1] }
    if (c==1) {
        if (match($0, /.*td>([A-Za-z ]+)<\/td.*/, ary)) { print ary[1] };
        if (/\/tr/) c=0
    } 
}'

[yosifkit]

So my more complete idea is to use the awk in update.sh (which is where our hacky html sed/awk parsing usually lives) and have it make or delete a variant file that would tell us if that version is alpha, beta, or rc. Then generate-stackbrew just checks for a variant file and uses that in the tag generation.

[scoutman57]

Might want to update the 10.2 Dockerfile for 10.2.2 which is the latest beta.

[tianon]

https://downloads.mariadb.org/mariadb/+releases/ -- 10.2 is now in Release Candidates stages, and 10.3.0 is Alpha

I'm thinking maybe we should simply give up on aliases for now and link to the "releases" page directly (and leave it up to users to figure out what's what). Sound fair? (@yosifkit)

(Then we only maintain latest pointing to the latest non-pre-release.)

[tianon]

Updated what what I've proposed (and included 10.3).