local fake_clipboard=/tmp/clipboard-data.txt
if is-ssh && is-port-in-use $clipper_port; then
# Pipe to the clipper instance and the fake clipboard.
tee >(nc localhost $clipper_port) "$fake_clipboard"
Please create the fake clipboard file somewhere in the user's home directory.
/tmp works perfectly fine for this purpose:
local fake_clipboard=$(mktemp)
The real issue with that code is the fact that Clipper is configured to listen on a TCP port instead of a socket file (placed in a /tmp subdirectory created by mktemp -d, of course).
So every time you copy or paste a new clipboard will be created. That defeats the purpose of clipboard.
Yeah, it is not like X11 uses it for precisely that purpose or anything. ^_^
Secondly because other uesrs might create files. Imagine somebody ran:
ln -s /home/foo/.bash_profile /tmp/clipboard-data.txt
Predictable filenames are a big security hole for multiuser systems, even though in practice you're probably the sole user of your desktop/laptop. I've reported numerous bugs of this kind, including this small set against GNU emacs: