Installed commands and version suffixes

[Jonathan Marten]

I've been scripting a task that uses various command line binaries
installed by either Frameworks, Plasma or Applications, and noticed that
there doesn't seem to be consistency in their major version suffix.
Some are installed only with a suffix "6", presumably to be able to be
coinstalled with the corresponding KF5 binary, but those provided by
kde-cli-tools are installed with a plain name plus a symlink with a "5"
suffix - even in a KF6/Plasma6 installation:

kwalletd6*
solid-hardware6*
kcmshell6*
kpackagetool6*
kded6*
kiconfinder6*
ktrash6*
kquitapp6*
kwriteconfig6*
kreadconfig6*
kbuildsycoca6*
ksyntaxhighlighter6*
kdecp*
kdecp5 -> kdecp*
kdemv*
kdemv5 -> kdemv*
kstart*
kstart5 -> kstart*
kde-open*
kde-open5 -> kde-open*
kioclient*
kioclient5 -> kioclient*
ksvgtopng*
ksvgtopng5 -> ksvgtopng*
keditfiletype*
keditfiletype5 -> keditfiletype*
kmimetypefinder*
kmimetypefinder5 -> kmimetypefinder*

Even more anomalously there is:

kwalletmanager5*

installed alone by utils/kwalletmanager even for a KF6 build.

This is not just of academic interest, because any scripted use of a
command needs to be individually checked whether to use "command",
"command${KDE_SESSION_VERSION}" or even hardwired to "command5".  There
is no consistent way to name a command, especially if use within a
legacy KF5 installation is also needed.

Should the naming according to KF version be made consistent?  Even
though development on KF5 has mostly finished, if coinstallability and
backwards compatibility is still needed then it should at least be
possible to access any command using "command${KDE_SESSION_VERSION}", in
other words having installed binaries and links:

kioclient*
kioclient5 -> kioclient*
kioclient6 -> kioclient*

or, if there is no need now for KF5 compatibility, just:

kioclient*
kioclient6 -> kioclient*

I'd be happy to submit any MRs needed, but first just wanted to check
that there are no hidden reasons why the installation is done this way.

--
Jonathan Marten                         http://www.keelhaul.me.uk
Twickenham, UK                          jjm2 at keelhaul.me.uk