added clipboard functions

zsh/files/clipboard.zsh

@@ -0,0 +1,100 @@
+# System clipboard integration
+#
+# This file has support for doing system clipboard copy and paste operations
+# from the command line in a generic cross-platform fashion.
+#
+# This is uses essentially the same heuristic as neovim, with the additional
+# special support for Cygwin.
+# See: https://github.com/neovim/neovim/blob/e682d799fa3cf2e80a02d00c6ea874599d58f0e7/runtime/autoload/provider/clipboard.vim#L55-L121
+#
+# - pbcopy, pbpaste (macOS)
+# - cygwin (Windows running Cygwin)
+# - wl-copy, wl-paste (if $WAYLAND_DISPLAY is set)
+# - xclip (if $DISPLAY is set)
+# - xsel (if $DISPLAY is set)
+# - lemonade (for SSH) https://github.com/pocke/lemonade
+# - doitclient (for SSH) http://www.chiark.greenend.org.uk/~sgtatham/doit/
+# - win32yank (Windows)
+# - tmux (if $TMUX is set)
+#
+# Defines two functions, clipcopy and clippaste, based on the detected platform.
+##
+#
+# clipcopy - Copy data to clipboard
+#
+# Usage:
+#
+#  <command> | clipcopy    - copies stdin to clipboard
+#
+#  clipcopy <file>         - copies a file's contents to clipboard
+#
+##
+#
+# clippaste - "Paste" data from clipboard to stdout
+#
+# Usage:
+#
+#   clippaste   - writes clipboard's contents to stdout
+#
+#   clippaste | <command>    - pastes contents and pipes it to another process
+#
+#   clippaste > <file>      - paste contents to a file
+#
+# Examples:
+#
+#   # Pipe to another process
+#   clippaste | grep foo
+#
+#   # Paste to a file
+#   clippaste > file.txt
+#
+function detect-clipboard() {
+  emulate -L zsh
+
+  if [ -n "${DISPLAY:-}" ] && (( ${+commands[xclip]} )); then
+    function clipcopy() { xclip -in -selection clipboard < "${1:-/dev/stdin}"; }
+    function clippaste() { xclip -out -selection clipboard; }
+  elif [ -n "${DISPLAY:-}" ] && (( ${+commands[xsel]} )); then
+    function clipcopy() { xsel --clipboard --input < "${1:-/dev/stdin}"; }
+    function clippaste() { xsel --clipboard --output; }
+  elif (( ${+commands[lemonade]} )); then
+    function clipcopy() { lemonade copy < "${1:-/dev/stdin}"; }
+    function clippaste() { lemonade paste; }
+  elif (( ${+commands[doitclient]} )); then
+    function clipcopy() { doitclient wclip < "${1:-/dev/stdin}"; }
+    function clippaste() { doitclient wclip -r; }
+  elif (( ${+commands[win32yank]} )); then
+    function clipcopy() { win32yank -i < "${1:-/dev/stdin}"; }
+    function clippaste() { win32yank -o; }
+  elif [[ $OSTYPE == linux-android* ]] && (( $+commands[termux-clipboard-set] )); then
+    function clipcopy() { termux-clipboard-set "${1:-/dev/stdin}"; }
+    function clippaste() { termux-clipboard-get; }
+  elif [ -n "${TMUX:-}" ] && (( ${+commands[tmux]} )); then
+    function clipcopy() { tmux load-buffer "${1:--}"; }
+    function clippaste() { tmux save-buffer -; }
+  elif [[ $(uname -r) = *icrosoft* ]]; then
+    function clipcopy() { clip.exe < "${1:-/dev/stdin}"; }
+    function clippaste() { powershell.exe -noprofile -command Get-Clipboard; }
+  else
+    function _retry_clipboard_detection_or_fail() {
+      local clipcmd="${1}"; shift
+      if detect-clipboard; then
+        "${clipcmd}" "$@"
+      else
+        print "${clipcmd}: Platform $OSTYPE not supported or xclip/xsel not installed" >&2
+        return 1
+      fi
+    }
+
+    function clipcopy() { _retry_clipboard_detection_or_fail clipcopy "$@"; }
+    function clippaste() { _retry_clipboard_detection_or_fail clippaste "$@"; }
+    return 1
+  fi
+}
+
+# Detect at startup. A non-zero exit here indicates that the dummy clipboards were set,
+# which is not really an error. If the user calls them, they will attempt to redetect
+# (for example, perhaps the user has now installed xclip) and then either print an error
+# or proceed successfully.
+detect-clipboard || true
+

zsh/rc.zsh

@@ -13,6 +13,7 @@ source $ZDOTDIR/files/completion.zsh
 source $ZDOTDIR/files/history.zsh
 source $ZDOTDIR/files/keybindings.zsh
 source $ZDOTDIR/files/termsupport.zsh
+source $ZDOTDIR/files/clipboard.zsh
 source $ZDOTDIR/files/sudo.zsh
 source $ZDOTDIR/files/cnf.zsh
 source $ZDOTDIR/files/fzf.zsh