[LLVMdev] unofficial github llvm-mirror: announce, frequency update, ownership

Will Dietz willdtz at gmail.com
Mon Mar 9 10:02:14 PDT 2015

Hi all,

I'd like to announce the "unofficial llvm github mirror", which I've
been running for a bit over 3 years now:


Why is this useful in addition to the existing llvm git mirrors?
* quick code browsing, easy to link to a particular line or commit
* github projects based on LLVM can simply fork (server-side) and
avoid uploading project contents and history repeatedly
* potentially faster cloning speeds[1]
* commits link to github profiles (who is this fellow, what else is he
up to?), profiles show commit activity
* reduce load on llvm hosting services ("if you don't use the github
mirror you're costing us money!" hehe I kid)
* lists the projects available via git

Anyway, if this sounds useful to you for whatever reason please make
use of it and happy compiler hacking :).


For those familiar with this mirror, I've bumped the update frequency
from one hour to five minutes.  There has been mention that one hour
makes it much less useful for development use, hopefully this helps
alleviate that concern.


Finally, I'd like to discuss LLVM taking over this service officially.

Few reasons why this makes sense:
* mirrors should be updated by a server-side hook, not periodic polling
* it has become moderately popular (currently first hit on google for
'llvm git'[2]) (multiple implications here)
* supporting this officially should require only minor effort, a
simple server-side git hook[3]

What do you think?

I'm happy to run it as long as I'm able, it's rather low-maintenance
and I take a bit of pride seeing it used as much as it is :).

However, from the start I've had the intention of either handing it
over or shutting it down on request, so if making this official sounds
good then let me know and I'll work with you to make the transition
and pass over account ownership.

Thanks, have a good one!


[1] I don't have numbers for this myself, but it's been mentioned on
the mailing list and wouldn't surprise me.
[2] http://www.google.com/search?pws=0&q=llvm+git
[3] https://help.github.com/articles/about-github-mirrors/

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