vis

vis-clipboard

(3072B)

 #!/bin/sh
 # Copyright (C) 2016 Richard Burke, ISC licensed
 # shellcheck disable=SC2317
 set -e
 
 vc_fatal() {
 	echo "$@" >&2
 	exit 1
 }
 
 vc_usage() {
 	vc_fatal "Usage: $(basename "$0") [--selection sel] [--usable|--copy|--paste]
 
 Copy/paste clipboard interface with support on all provided platforms.
 
 Options:
     --copy       copy text from standard input
     --paste      paste text to standard output
     --usable     silently exit with a status code indicating if a supported
                  clipboard implementation was found
     --selection  take input from sel. valid options: clipboard, primary"
 }
 
 vc_determine_command() {
 	if [ -n "$WAYLAND_DISPLAY" ]; then
 		for c in wl-copy wl-paste; do
 			if command -v "$c" >/dev/null 2>&1; then
 				echo "wlclipboard"
 				return 0
 			fi
 		done
 
 		for c in waycopy waypaste; do
 			if command -v "$c" >/dev/null 2>&1; then
 				echo "wayclip"
 				return 0
 			fi
 		done
 	fi
 
 	if [ -n "$DISPLAY" ]; then
 		for c in xclip xsel; do
 			if command -v "$c" >/dev/null 2>&1; then
 				echo "$c"
 				return 0
 			fi
 		done
 	fi
 
 	if command -v pbcopy >/dev/null 2>&1; then
 		echo 'mac'
 		return 0
 	fi
 
 	if command -v wslclip >/dev/null 2>&1; then
 		echo 'wsl'
 		return 0
 	fi
 
 	if [ -c /dev/clipboard ]; then
 		echo 'cygwin'
 		return 0
 	fi
 
 	return 1
 }
 
 vc_usable() {
 	if vc_determine_command >/dev/null 2>&1; then
 		exit 0
 	fi
 
 	exit 1
 }
 
 vc_copy() {
 	COPY_CMD="$(vc_determine_command 2>/dev/null)"
 
 	# shellcheck disable=SC2181
 	if [ $? -ne 0 ] || [ -z "$COPY_CMD" ]; then
 		vc_fatal 'System clipboard not supported'
 	fi
 
 	"vc_${COPY_CMD}_copy"
 
 	exit $?
 }
 
 vc_paste() {
 	PASTE_CMD="$(vc_determine_command 2>/dev/null)"
 
 	# shellcheck disable=SC2181
 	if [ $? -ne 0 ] || [ -z "$PASTE_CMD" ]; then
 		vc_fatal 'System clipboard not supported'
 	fi
 
 	"vc_${PASTE_CMD}_paste"
 
 	exit $?
 }
 
 vc_wlclipboard_copy() {
 	if [ "$sel" = "primary" ]; then
 		wl-copy --primary -t TEXT 2>/dev/null
 	else
 		wl-copy -t TEXT 2>/dev/null
 	fi
 }
 
 vc_wlclipboard_paste() {
 	if [ "$sel" = "primary" ]; then
 		wl-paste --no-newline --primary -t text
 	else
 		wl-paste --no-newline -t text
 	fi
 }
 
 vc_wayclip_copy() {
 	if [ "$sel" = "primary" ]; then
 		waycopy -p 2>/dev/null
 	else
 		waycopy 2>/dev/null
 	fi
 }
 
 vc_wayclip_paste() {
 	if [ "$sel" = "primary" ]; then
 		waypaste -p
 	else
 		waypaste
 	fi
 }
 
 vc_xsel_copy() {
 	xsel --"$sel" -i
 }
 
 vc_xsel_paste() {
 	xsel --"$sel" -o
 }
 
 vc_xclip_copy() {
 	xclip -selection "$sel" -i >/dev/null 2>&1
 }
 
 vc_xclip_paste() {
 	xclip -selection "$sel" -o
 }
 
 vc_mac_copy() {
 	pbcopy
 }
 
 vc_mac_paste() {
 	pbpaste
 }
 
 vc_wsl_copy() {
 	wslclip
 }
 
 vc_wsl_paste() {
 	wslclip -g
 }
 
 vc_cygwin_copy() {
 	cat >/dev/clipboard
 }
 
 vc_cygwin_paste() {
 	cat /dev/clipboard
 }
 
 while [ $# -gt 0 ]; do
 	case "$1" in
 		--usable) fn=vc_usable;;
 		--copy) fn=vc_copy;;
 		--paste) fn=vc_paste;;
 		--selection)
 			shift
 			if [ "$1" != "clipboard" ] && [ "$1" != "primary" ]; then
 				vc_fatal "Invalid selection: $1\nValid options are 'clipboard' or 'primary'"
 			fi
 			sel="$1";;
 		*) vc_usage;;
 	esac
 	shift
 done
 
 sel=${sel:-"clipboard"} $fn
 
 vc_usage