clipboard-provider

#!/bin/bash
#
# clipboard provider for neovim
#
# :help provider-clipboard

exec 2>> ~/clipboard-provider.out
set -x

: ${COPY_PROVIDERS:=tmux osc52}
: ${PASTE_PROVIDERS:=tmux}

main() {
    declare buffer

    case $1 in
        copy)
            buffer=$(base64)
            internal() { base64 -d <<<"$buffer"; }
            for p in $COPY_PROVIDERS; do
                internal | $p-provider copy
            done ;;
        paste)
            for p in $PASTE_PROVIDERS; do
                $p-provider paste && break
            done ;;
    esac

    exit 0
}

tmux-provider() {
    [[ -n $TMUX ]] || return
    case $1 in
        copy) internal | tmux load-buffer - ;;
        paste) tmux save-buffer - ;;
    esac
}

osc52-provider() {
    # HACK: this ignores stdin and looks directly at the base64 buffer
    case $1 in
        copy) printf $'\e]52;c;%s\a' "$buffer" > /dev/tty ;;
        paste) return 1 ;;
    esac
}

main "$@"