[Dune] Git repositories on gitlab.dune-project.org

[Steffen Müthing]

Dear DUNE users and developers,

there are some important changes to our development infrastructure. PLEASE READ THIS
MAIL COMPLETELY, that will make life a lot easier for all us… ;-)

as decided at this year’s developer meeting, our development infrastructure will be moved
to a GitLab instance. GitLab is similar to GitHub, but can be hosted on our own server here
in Heidelberg.

This server is now online and can be found at https://gitlab.dune-project.org. Before we can
actually move the development activities over to that server, everybody will have to create a
new account (except for people who have already used the local GitLab in Heidelberg, e.g.
for PDELab - in that case, skip the following instructions). To do so,

* go to https://gitlab.dune-project.org and use the sign-up form at the bottom right of the page.
  Please enter your real name and use the convention "firstname.lastname“ for your username.

* you will then receive an email with a confirmation link that you have to click.

* Afterwards, GitLab will say that your account is blocked. This is normal and not an error: One
  of the GitLab administrators still has to manually approve your account, which should happen
  within a few minutes.

* You will get another email once your account has been unblocked and can be used.

The manual approval process is a little annoying, but as every GitLab user can create repositories
on the server, we really want to be able to block spam.

If you have already used the GitLab instance in Heidelberg, you will already have an account
on gitlab.dune-project.org with the same username and password you used for the other instance.

After your first sign-in, you should take the time to customize your settings. To get there, click
on your username in the bottom left of the screen. On the following page, click on „Profile Settings“
(the last menu entry in the bar on the left). On the main settings page, you can update your name
and other personal details and decide whether your email should be visible. There are a few more
interesting settings:

* Under „Account“, you can link your account with GitHub, which will allow you to log in using your
  GitHub credentials (click the little GitHub icon on the sign in page). That way, you can cut down
  on the number of passwords if you want…

* Please add any additional email addresses that you use / have used in Git commits under „Emails“.
  That way, GitLab will know that these commits have also been made by you.

* Under „Notifications“, you can tell GitLab for what it should send you notifications (also on a per-group
  basis) and to which of your email addresses it should send those notifications.

* GitLab allows pushing over SSH in addition to HTTPS - yeah! Before you can use it, you will have to
  upload your public SSH key(s).

* The „Preferences“ allow you to change the way GitLab looks. You can pick a different color scheme,
   which mostly changes the color of the left-hand menu bar, a code highlighting scheme, what to show
   on your dashboard and on the project pages and - very important - the layout width. This defauilts to
   fixed. If you have a wide screen, you should definitely switch this to „fluid“, as it will show you a lot more
   information on screen.
   You can also play around with the dashboard in combination with starred projects. If you are only interested
    in a small number of DUNE modules, you can star them on their project page and set the dashboard to
    „Starred Projects“ or „Starred Project’s Activity“ to hide all the other projects.


Please create your account as soon as possible, as I would like to keep the transition period rather short
to keep the unavoidable synchronization problems to a minimum.


Best,
Steffen

PS: @PDELab users: We will move PDELab development from the GitLab instance in Heidelberg to
       gitlab.dune-project.org sometime later today - there will be a separate email on how to update your
       remotes on the PDELab mailing list.
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