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For security reasons, some terminals require explicit permission from the user to interpret OSC 52. One of them is [tmux] but that one usually runs inside another terminal. This means we can usually write directly to the underlying terminal, bypassing tmux and the need for user configuration. This only works if the underlying terminal is writable to the fish user, which may not be the case if we switched user. For this reason, keep writing to stdout as well, which should work fine if tmux is configured correctly. [tmux]: https://github.com/tmux/tmux/wiki/Clipboard
49 lines
1.8 KiB
Fish
49 lines
1.8 KiB
Fish
function fish_clipboard_copy
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set -l cmdline
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if isatty stdin
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# Copy the current selection, or the entire commandline if that is empty.
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# Don't use `string collect -N` here - `commandline` adds a newline.
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set cmdline (commandline --current-selection | string collect)
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test -n "$cmdline"; or set cmdline (commandline | string collect)
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else
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# Read from stdin
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while read -lz line
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set -a cmdline $line
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end
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end
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if type -q pbcopy
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printf '%s' $cmdline | pbcopy
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else if set -q WAYLAND_DISPLAY; and type -q wl-copy
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printf '%s' $cmdline | wl-copy
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else if set -q DISPLAY; and type -q xsel
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printf '%s' $cmdline | xsel --clipboard
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else if set -q DISPLAY; and type -q xclip
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printf '%s' $cmdline | xclip -selection clipboard
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else if type -q clip.exe
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printf '%s' $cmdline | clip.exe
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end
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# Copy with OSC 52; useful if we are running in an SSH session or in
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# a container.
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if type -q base64
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if not isatty stdout
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echo "fish_clipboard_copy: stdout is not a terminal" >&2
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return 1
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end
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set -l encoded (printf %s $cmdline | base64 | string join '')
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printf '\e]52;c;%s\a' "$encoded"
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# tmux requires user configuration to interpret OSC 52 on stdout.
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# Luckily we can still make this work for the common case by bypassing
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# tmux and writing to its underlying terminal.
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if set -q TMUX
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set -l tmux_tty (tmux display-message -p '#{client_tty}')
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or return 1
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# The terminal might not be writable if we switched user.
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if test -w $tmux_tty
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printf '\e]52;c;%s\a' "$encoded" >$tmux_tty
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end
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end
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end
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end
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