I think it would make the most sense to do option (a), possibly also
leaving open the possibility of changing the updates source location
(for example, it's conceivable to have a mirror server at
kicad-pcb.org <http://kicad-pcb.org> that contains snapshots of the
libraries that are compiled from the Git repo whenever it's updated
using a Jenkins job).
-Jon
On Thu, Sep 21, 2017 at 9:21 PM, Oliver Walters
<oliver.henry.walters@xxxxxxxxx
<mailto:oliver.henry.walters@xxxxxxxxx>> wrote:
Hi all,
Ok, now that the website integration with the libraries is (pretty
much) done, and the licensing issue seems to be sorted, there is
one final puzzle piece to solve before I'm happy with the state of
the libraries for a v5 release.
*Goal: *Merge all footprint library repositories into a single
repo to solve the ongoing dramas of maintaining 100+ repos.
*Problem*: The *only* thing standing in the way of just doing this
is that some users like the GitHub plugin and previous instruction
is that this functionality cannot be removed.
The GitHub plugin functions by downloading a .zip file of a
.pretty repo. If we merge all footprint libs into a single repo
with multiple subdirectories, this will not work anymore (as
GitHub dosen't allow you to download a .zip of a single subdirectory).
Merging the repos is the *right thing to do*. But how to proceed?
*Options:*
*
*
/a) Drop github plugin feature, replace with library-download tool/
I don't think it is a good idea to live-load library data from
GitHub (a lot of other users agree too). It's slow, and a waste of
bandwidth to re-download the libs all the time.
We drop support for loading libraries direct from GitHub. However,
we add a tool for downloading libraries from GitHub and storing to
disk. Users can update as they like. This can be integrated in
KiCad and new users can run this tool when they first install
KICad. This means that no libs need to distributed with the
installer and users can update to latest libs whenever they want.
/b) Improve github plugin to allow subdirectory traversal/
This is difficult and will only result in the plugin being slower.
There are two ways I can see to do this:
i. Use Git API - tools exist that use this functionality -
https://github.com/KinoLien/gitzip
<https://github.com/KinoLien/gitzip>
ii. Use subversion - GitHub actually provides subversion API -
https://www.seanw.org/blog/download-git-repo-subdirectory/
<https://www.seanw.org/blog/download-git-repo-subdirectory/>
*Subversion*
In either case, I think that using the subversion tool to
partially download the libraries would be a good approach (I
assume quicker than using wget and the GitHub API).
1. Does anyone have any experience using the C API for SVN?
2. The Python bindings are pretty good -
https://pypi.python.org/pypi/svn
<https://pypi.python.org/pypi/svn> - and much easier to use.
However, can we make the library download tools dependent on
enabling the python plugin?
3. Is there a way to checkout a subversion remote to memory (to
replicate the functionality of the current GitHub plugin)? If not,
I'm not sure how to approach option b) above.
Feedback appreciated. I think that it is very important especially
for new users that this is improved. The GitHub plugin is
constantly causing headaches!
Cheers,
Oliver
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