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108 lines
4.2 KiB
Bash
108 lines
4.2 KiB
Bash
# System clipboard integration
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#
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# This file has support for doing system clipboard copy and paste operations
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# from the command line in a generic cross-platform fashion.
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#
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# This is uses essentially the same heuristic as neovim, with the additional
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# special support for Cygwin.
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# See: https://github.com/neovim/neovim/blob/e682d799fa3cf2e80a02d00c6ea874599d58f0e7/runtime/autoload/provider/clipboard.vim#L55-L121
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#
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# - pbcopy, pbpaste (macOS)
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# - cygwin (Windows running Cygwin)
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# - wl-copy, wl-paste (if $WAYLAND_DISPLAY is set)
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# - xsel (if $DISPLAY is set)
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# - xclip (if $DISPLAY is set)
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# - lemonade (for SSH) https://github.com/pocke/lemonade
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# - doitclient (for SSH) http://www.chiark.greenend.org.uk/~sgtatham/doit/
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# - win32yank (Windows)
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# - tmux (if $TMUX is set)
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#
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# Defines two functions, clipcopy and clippaste, based on the detected platform.
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##
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#
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# clipcopy - Copy data to clipboard
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#
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# Usage:
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#
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# <command> | clipcopy - copies stdin to clipboard
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#
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# clipcopy <file> - copies a file's contents to clipboard
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#
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##
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#
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# clippaste - "Paste" data from clipboard to stdout
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#
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# Usage:
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#
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# clippaste - writes clipboard's contents to stdout
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#
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# clippaste | <command> - pastes contents and pipes it to another process
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#
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# clippaste > <file> - paste contents to a file
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#
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# Examples:
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#
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# # Pipe to another process
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# clippaste | grep foo
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#
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# # Paste to a file
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# clippaste > file.txt
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#
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function detect-clipboard() {
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emulate -L zsh
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if [[ "${OSTYPE}" == darwin* ]] && (( ${+commands[pbcopy]} )) && (( ${+commands[pbpaste]} )); then
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function clipcopy() { cat "${1:-/dev/stdin}" | pbcopy; }
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function clippaste() { pbpaste; }
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elif [[ "${OSTYPE}" == (cygwin|msys)* ]]; then
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function clipcopy() { cat "${1:-/dev/stdin}" > /dev/clipboard; }
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function clippaste() { cat /dev/clipboard; }
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elif (( $+commands[clip.exe] )) && (( $+commands[powershell.exe] )); then
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function clipcopy() { cat "${1:-/dev/stdin}" | clip.exe; }
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function clippaste() { powershell.exe -noprofile -command Get-Clipboard; }
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elif [ -n "${WAYLAND_DISPLAY:-}" ] && (( ${+commands[wl-copy]} )) && (( ${+commands[wl-paste]} )); then
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function clipcopy() { cat "${1:-/dev/stdin}" | wl-copy &>/dev/null &|; }
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function clippaste() { wl-paste; }
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elif [ -n "${DISPLAY:-}" ] && (( ${+commands[xsel]} )); then
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function clipcopy() { cat "${1:-/dev/stdin}" | xsel --clipboard --input; }
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function clippaste() { xsel --clipboard --output; }
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elif [ -n "${DISPLAY:-}" ] && (( ${+commands[xclip]} )); then
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function clipcopy() { cat "${1:-/dev/stdin}" | xclip -selection clipboard -in &>/dev/null &|; }
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function clippaste() { xclip -out -selection clipboard; }
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elif (( ${+commands[lemonade]} )); then
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function clipcopy() { cat "${1:-/dev/stdin}" | lemonade copy; }
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function clippaste() { lemonade paste; }
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elif (( ${+commands[doitclient]} )); then
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function clipcopy() { cat "${1:-/dev/stdin}" | doitclient wclip; }
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function clippaste() { doitclient wclip -r; }
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elif (( ${+commands[win32yank]} )); then
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function clipcopy() { cat "${1:-/dev/stdin}" | win32yank -i; }
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function clippaste() { win32yank -o; }
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elif [[ $OSTYPE == linux-android* ]] && (( $+commands[termux-clipboard-set] )); then
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function clipcopy() { cat "${1:-/dev/stdin}" | termux-clipboard-set; }
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function clippaste() { termux-clipboard-get; }
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elif [ -n "${TMUX:-}" ] && (( ${+commands[tmux]} )); then
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function clipcopy() { tmux load-buffer "${1:--}"; }
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function clippaste() { tmux save-buffer -; }
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else
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function _retry_clipboard_detection_or_fail() {
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local clipcmd="${1}"; shift
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if detect-clipboard; then
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"${clipcmd}" "$@"
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else
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print "${clipcmd}: Platform $OSTYPE not supported or xclip/xsel not installed" >&2
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return 1
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fi
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}
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function clipcopy() { _retry_clipboard_detection_or_fail clipcopy "$@"; }
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function clippaste() { _retry_clipboard_detection_or_fail clippaste "$@"; }
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return 1
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fi
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}
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# Detect at startup. A non-zero exit here indicates that the dummy clipboards were set,
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# which is not really an error. If the user calls them, they will attempt to redetect
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# (for example, perhaps the user has now installed xclip) and then either print an error
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# or proceed successfully.
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detect-clipboard || true
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