Re: [PATCHv2 6/7] web--browse: use (x-)www-browser if available

Giuseppe Bilotta [off-list ref] writes:

Debian and derivatives have an alternatives-based default browser
configuration that uses the /usr/bin/gnome-www-browser,
/usr/bin/x-www-browser and /usr/bin/www-browser symlinks.

When no browser is selected by the user and the Debian alternatives are
available, try to see if they are one of our recognized selection and
in the affermative case use it. Otherwise, warn the user about them
being unsupported and move on with the previous detection logic.

A "please step back a bit" question.  Does the packaging guideline of
Debian say that non-browser applications should take these links as "end
user preference" when opening HTML pages?

The behaviour of unconfigured git across platforms would become less
consistent if we do this, while the behaviour of random programs on one
particular platform (Debian) would become more consistent.

I am not saying that is necessarily a bad thing.  I just want to
understand the motivation.

+# check if a given executable is a browser we like
+valid_exe() {

Call it valid_browser_executable or something, please.

+	testexe="$1"
+	basename=$(basename $(readlink -f "$testexe"))

Are we saying "readlink" must exist on the system?  This dependency is
new, I think.