In order to move to git we need 2 things:
- A decision on hosting.
- A solution regarding Trac and git integration (or a move to another
ticket system).
On 04/23/2015 01:59 AM, Cameron Shorter wrote:
If we plan to migrate to git, I suggest we should do this over the
next few weeks, before our official OSGeo-Live 9.0 kickoff which
should be 17 May according to our schedule:
https://docs.google.com/spreadsheet/ccc?key=0Al9zh8DjmU_RdE1SYUN3YWJ2N1NpSUczbW9IRWZNclE&hl=en_GB#gid=0
I'm thinking we need to:
* Set up our main git repository and whatever is involved there
* Update our wiki pages to change all references of using svn to git
* Update any of our scripts which make use of svn to switch to git.
* Annouce
On 23/04/2015 8:47 am, Angelos Tzotsos wrote:
Hi,
Thanks Alex for bringing the git migration topic up again.
Our git-svn mirror (https://github.com/OSGeo/OSGeoLive) has been
working very well for the last couple of months.
As mentioned in my previous e-mail, I have managed to split a doc git
repository (with history).
The question is when do we "officially" switch.
Are there any news on OSGeo git hosting options?
Best,
Angelos
On 04/22/2015 06:27 PM, Alex Mandel wrote:
Perhaps this is time to check in on the plan to migrate the docs to
git,
as that would better enable additional contributors.
On 01/31/2015 08:09 PM, Angelos Tzotsos wrote:
Hi all,
We have been discussing this for a couple of years and I think it is
time to seriously start considering a strategy for migrating to Git
as our source control system [1].
If someone is unfamiliar with Git, there are great resources online
pointing to why we should use Git instead of svn [2] [3] [4].
Git is a free and open source distributed revision
control<http://en.wikipedia.org/wiki/Distributed_revision_control>
system with an emphasis on speed, data
integrity,^<http://en.wikipedia.org/wiki/Git_%28software%29#cite_note-integrity_goals-7>
and support for distributed, non-linear
workflows.^<http://en.wikipedia.org/wiki/Git_%28software%29#cite_note-linusGoogleTalk-8>
Git was initially designed and developed by Linus Torvalds for Linux
kernel<http://en.wikipedia.org/wiki/Linux_kernel> development in
2005, and has since become the most widely adopted version control
system for open source software
development.<http://en.wikipedia.org/wiki/Git_%28software%29#cite_note-ianskerrett.wordpress.com-9>
Many people tend to confuse Git with GitHub [5] which is an
excellent code collaboration service (most open source projects use
it today, even Linux kernel keeps a code mirror there) but it is not
available under an open source license.
This is not a problem for us. Git is a distributed source control
system, which means that there is no need for a centralized server
as in subversion. Every developer has a copy of the whole repository
(including history). In order to keep our Subversion-style workflow
(store commits to a reference repository), we can use something like
GitLab [6] or something even simpler [7] on an OSGeo server to host
git repositories. Also, there is an OSGeo GitHub account [8] that we
could use as a mirror too...
Regarding the actual port, I propose that we should do this smoothly:
1. Create an OSGeoLive-docs repository (with full svn history)
2. Start building our docs as a deb package based on Git repository.
The Git repository can be synchronized with our svn for a while
until we abandon svn.
3. Migrate our translation process to Git or even use excellent
translation tools like Transifex [9] (GeoServer and other projects
already use it for translations) [10]
4. Create an OSGeoLive repository (with svn history, without docs)
5. Migrate our iso build scripts to use the Git repositories (with
branch and tag support)
6. Keep Git and svn synchronized for a while until we abandon svn
I have already done some work for step 1:
There is an Git-svn mirror of our docs available here [11].
In order to be able to accurately hold a git history, we need to
provide a name and e-mail for every contributor.
This is why I have committed this transformation file [12] that I
use to rebuild the history on the Git side, so that we can have the
complete history of commits [13] (for now I just committed my own
details as an example here [14]).
I would like to ask everyone to add their name and e-mail (that they
already use on their Git projects). We could extract this
information from our contributors.csv file for you if you don't want
to provide this info again.
Regarding our ticket system, there is a Trac plugin for Git
available that we could use [15].
Resources for the migration can be found here: [16] [17] [18]
Sorry for the long e-mail.
Lets have a discussion here before we vote.
This proposal is for AFTER we release 8.5 final ;)
Best,
Angelos
[1] http://git-scm.com/
[2] http://git-scm.com/about/
[3] https://www.youtube.com/watch?v=4XpnKHJAok8
[4] http://git-scm.com/book/en/v2
[5] https://github.com
[6] https://about.gitlab.com/
[7] https://git.kernel.org/cgit/
[8] https://github.com/OSGeo
[9] https://www.transifex.com/
[10] https://www.transifex.com/projects/p/geoserver/
[11] https://github.com/kalxas/OSGeoLive-docs
[12]
http://trac.osgeo.org/osgeo/browser/livedvd/gisvm/trunk/doc/contributors-transform-git.txt
[13] https://github.com/kalxas/OSGeoLive-docs/graphs/contributors
[14] http://trac.osgeo.org/osgeo/changeset/12235
[15] http://trac.edgewall.org/wiki/TracGit
[16]
http://git-scm.com/book/en/v1/Git-and-Other-Systems-Git-and-Subversion
[17]
http://stackoverflow.com/questions/79165/migrate-svn-repository-with-history-to-a-new-git-repository
[18] http://john.albin.net/git/convert-subversion-to-git
--
Angelos Tzotsos
Remote Sensing Laboratory
National Technical University of Athens
http://users.ntua.gr/tzotsos
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