Adding hg version check to get_source.sh?

[Kelly O'Hair]

Seems reasonable to me.

-kto

On Jun 17, 2014, at 2:35 PM, Mike Duigou wrote:

> With the upgrade of the hg.openjdk.java.net servers very old mercurial clients can no longer be used (0.9.5) and there have been persistent reports of more frequent connection failures. The older your mercurial client the more likely the failures are.
> 
>                jdk:   hg clone http://hg.openjdk.java.net/jdk9/dev/jdk jdk
>                jdk:   requesting all changes
>                jdk:   adding changesets
>                jdk:   adding manifests
>                jdk:   transaction abort!
>                jdk:   rollback completed
>                jdk:   abort: stream ended unexpectedly (got 8372 bytes, expected 10932)
> 
> I would like to add a version check to get_source.sh which will require mercurial 1.5 or later and warn for clients older than 1.9. 
> 
> Seem reasonable?
> 
> Mike