I don't know who is currently behind the grass-daily Ubuntu packages at https://launchpad.net/~grass/+archive/ubuntu/grass-devel, and if they are listening here, but a colleague of mine using these packages was hit by a bug that causes an error in the installation of the html docs and thus in g.extension.
In the grass-daily-doc package there are two directories in /usr/share/doc, each with a html subdirectoy:
grass-daily-doc
grass-doc
The first contains all the html man pages, and the second just contains a symlink to jquery (jquery -> ../../../javascript/jquery).
So first issue: I'm not sure there should be two -doc directories. The symlink should be in the grass-daily-doc directory (or everything put into the grass-doc directory).
The second issue is that the file /usr/share/doc-base/grass-daily-manuals contains hardcoded paths for grass71:
Index: /usr/share/doc/grass71-doc/html/index.html
Files: /usr/share/doc/grass71-doc/html/*.html
These should be replaced by links to grass-daily-doc:
Index: /usr/share/doc/grass-daily-doc/html/index.html
Files: /usr/share/doc/grass-daily-doc/html/*.html
And finally, the symlink in
/usr/lib/grass73/docs/html -> ../../../share/doc/grass-doc/html
points to grass-doc, not grass-daily-doc (and grass-doc/html only contains the link to jquery).
Because of these issues (already problematic by themselves), g.extenion throws an python error because it cannot find the grass_logo.png file.
Just tell me if I should go elsewhere with this bug.
Moritz