Related question I can't seem to track down an answer to:

I have a 9front cluster which was set up back when Mercurial was used, so that is what sysupdate is looking for.

I finally realized that I am no longer seeing updates because 9front switched to git.

How does one go about upgrading an existing 9front install to pull updates from git instead of hg?

When I try running the manual commands to pull from git it (logically) complains that it is not a git repository, but I am not finding any clear instructions on how to go about making this switch on an existing install?


On 6/14/21 3:13 PM, o...@eigenstate.org wrote:
Quoth Tony Mendoza <clue...@tonymendoza.us>:
Quick question (or maybe not), but how are these being hosted?   Is this done 
on a cloud provider vm platform?   Or is this being done in a traditional DC 
using real hardware?

Just curious to know how this is being done because I would like to do 
something similar.
Currently, it's hosted on vultr, but there are
a number of hosts that you can use.

As far as how it's actually done:

Git goes over git/serve in /rc/bin/service:

         cpu% cat /rc/bin/service/tcp9418
         #!/bin/rc
         exec git/serve -r/usr/git

the '-r' path is implicitly prepended on to
any repositories that are cloned, so eg:

         git/clone git://host.com/repo/path

clones

         /usr/git/repo/path

The authenticated protocol, hjgit, is the same
as the unauthenticated git:// protocol, but with
'tlssrv -a' wrapping the connection to handle auth
and encryption. The '-w' flag on git/serve enables
writing to the repo.

         cpu% cat /rc/bin/service/tcp17021
         #!/bin/rc
         exec tlssrv -a /bin/git/serve -wr/usr/git

Our encrypted 'gits://' extension is the same,
but with a cert, and its key in factotum:

         cpu% cat /rc/bin/service/tcp9419
         #!/bin/rc
         exec tlssrv -c/sys/lib/tls/git/git.cert /bin/git/serve -r/usr/git

That gets you a fully functional git server,
that hosts its code in /usr/git.

The website is served using tcp80 and execfs:

         cpu% cat /bin/cpurc.local
         auth/none execfs -s git.execfs /sys/lib/tcp80/gitrules

         cpu% cat /rc/bin/service/tcp80
         #!/bin/rc
         # some ns trickery to allow serving static data,
         # we can probably clean this up.
bind /usr/web /mnt/static
mount /srv/git.execfs /usr/web
bind /mnt/static /usr/web/static
rfork n
exec /bin/tcp80

And the code for the web ui is more or less a modified
version of this code:

http://shithub.us/ori/shithub/HEAD/files.html

There's also a more minimal proof of concept that I
did before phil9 ran with it and improved it here:

http://shithub.us/ori/git9/HEAD/extra/gitls/f.html

It's less complete, but probably easier to read and
understand.


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