[build/packaging] missing doc_??.qhc and plugins' desc./info
The reference documentation is not packaged for Ubuntu (manual, plugins help).
I tried to auto-compile musescore from the source package on Ubuntu (see: [ubuntu-PPA] no v2.0.2). Some files might have got generated into the
rdoc/ directory, but not into the
build.release/rdoc/ dir, and the final
doc_en.qhc file and a doc package was not created.
I accidentally came across such a package for Feroda (e.g. http://arm.koji.fedoraproject.org/koji/rpminfo?rpmID=1511567 ), so I concluded that it is not deliberately missing.
Getting the warning on the commad-line:
cannot setup data for help engine: Cannot open collection file: /usr/share/mscore-2.0/manual/doc_en.qhc
The help browser in the application is empty and the plugins have no desctiption (only what seems to be a plugin file-name, from which I could not guess what they actually do).
You are correct, the manuals are not installed on Ubuntu. It seems this was done intentionally in the past for compliance with the Debian Foundation Software Guidelines (DFSG) because the PDF manual was covered by a GPL-incompatible license. However, the PDF is no longer shipped with MuseScore and the remaining manuals are safe to be included.
I've submitted a report downstream: