Idea: seamlessly pull clipboard content from remote machine when using
nvim/ranger
When: copy text pieces between vim instances opened in multiple ssh servers
Impl: xsel wrapper on each server => sync to host machine when piping into xsel
* fallback to xsel if $DISPLAY is available (xset -q && exec xsel "$@")
* check content length to be "small enough" (don't block slow channel)
* base64 it if binary content (smth like RFC2047)
* choose transmission escape sequences from switch by $TERM
* find pty of current process group and write into it
...
* st on host extracts data between beg/end transmission escape codes
* st decodes and copies data to host machine clipboard
* user inserts clipboard into another st window by standart <C-S-v>
Why:
* ssh -X/-Y is insecure and requires to be enabled explicitly in
/etc/ssh/sshd_config
* Xserver may be completely unavailable (headless server w/o xorg packages,
chroot system, etc)
* cat content/tempfile into reverse tunnel may be impossible behind NAT
I remember seeing some dedicated escape sequences and prototype of
this idea for urxvt 3-4 years ago, before I switched to st.
But I can't find that prototype now.
And I'm starting doubt if what I saw is urxvt at all.
What I appreciate:
* if you can point already implemented similar (or alternative) solution
* if someone can give me ref to that mentioned trick with urxvt (or what
that was?)
* point out problems which arise in proposed implementation
E.g. Currently I don't know how to resolve content intermixing problem or how
to determine "reasonably small" data size, and what to do if it's much larger.
But there must be more problems I failed to notice.
