Hi Turbine Devs,

I propose this as a vote, which allows us to get an overview of what we 
want to do or have to do, the workload, and how to communicate with INFRA.

SVN->Git

(1.1) Move Turbine-core and Turbine-site from SVN to Git as detailed 
below. Turbine-Core is currently mirrored only in GitHub/Gitbox. 

(1.2) Move Fulcrum components from SVN to Git. Fulcrum is currently 
mirrored only in GitHub. 
a) try to keep it in one git repo or if not possible split up. b) split it 
up in any case. Find more information below!

(1.3) Move Turbine Maven from SVN to Git as detailed below. 
Turbine-Archetypes is already a GIT repo.

(2) Performing a Turbine-core release v5.1: As this might take some time 
depending on workload, should we release before the migration? 

We probably want still use the maven scm plugin to publish releases, but 
for building and publishing web content we have to change more (as it 
seems):

(3) For each Git repo with a maven-site-configuration to build and publish 
web content, we should define either 
a) a Jenkins Build file(s) and/or b) a build directive within the 
.asf.yaml-file (supports jekyll and pelican)  c) an instruction, how to do 
it locally, similar how it is explained here [2], but with additional 
restrictions (see below .asf.yml file, web root folder). The last 
alternative might be too much effort.  It might be possible to do this 
even for mirrored git-repos (we have to ask INFRA).

We might vote like this:

[ ] +1 support (optional with order): Example: 3,2,1 > 1,2,3 > 2,1,3  / 1a 
> 1b
[ ] +0 go ahead I don't care
[ ] -1 no, do not ... , because

Finally to achieve all of this correctly, we have to inform INFRA about 
our mappings and other required changes.

- I expect Turbine-core and Turbine-site be migrated without much hassle 
and map easily to git from the current svn (the svn structure for 
turbine/core and turbine/site is the same). 
- Fulcrum components could be kept as currently in a single git repo or 
split up each into a separate git repo. As consistent the latter approach 
would be I would prefer keeping them together (if possible, see below!). 
Reasons are: The master module pom will be "lost". This could be solved 
with git modules, but requires some additional effort and advanced git 
knowledge + documentation/testing IMO. Who will help? - Maintenance effort 
increases (e.g. an update of a shared dependency has to be done in x (x= 
number of git repos) commits versus 1 commit, if we keep them as a 
collection also in version control. On the other side publishing has to be 
discussed with INFRA and is not done out-of-the-box, see below. What do 
you prefer?
- Turbine-maven-parent and Parent-assembly might be split up (without 
archetypes) as well.. 
The policy of INFRA on how a project should publish their web site seems 
to be now, that by default HTML will be fetched from an branch "asf-site" 
inside a git repository. Additionally an .asf.yml file must be present in 
this branch [1]. As Turbine is structured in such a way, that the website 
is build modularily, we would need then by default a git repo for each 
module. We may use "subdir" command in .asf.yaml and default root URL 
setting for turbine-site and fulcrum-site, if the latter will not destroy 
the tree contents below ;-). The content to be published (in the branch 
asf-site) has to be in the root or in a folder "content" or "output"[1]. 
Building may take place using a Jenkins build file updating the asf-site 
branch or a buildbot-definition in .asf.yaml using Jekyll or Pelican hooks 
[1]. To keep Fulcrum components together, we might do it like Apache Jena 
achieved it to do it for their javadoc: Sync a named branch with the help 
of INFRA. Gavin McDonald pointed us to this:
https://cwiki.apache.org/confluence/display/INFRA/How+Apache+Jena+migrated+from+the+CMS
. In step 8 (optional) Jena created a branch javadoc, which maps to a 
subfolder in the website, https://github.com/apache/jena-site/tree/javadoc
. We may proceed in a similar way for Fulcrum having only one git repo 
with multiple site branches?

Nevertheless, be aware, that currently publishing a site could not be done 
and all steps require some effort! Any support is welcome, of course ;-)

Thanks!

Best regards, Georg

[1] 
https://cwiki.apache.org/confluence/display/INFRA/git+-+.asf.yaml+features
[2] 
https://maven.apache.org/plugins/maven-scm-publish-plugin/various-tips.html


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