bitcoin-tx.bash-completion

# bash programmable completion for bitcoin-tx(1)
# Copyright (c) 2016 The Bitcoin Core developers
# Distributed under the MIT software license, see the accompanying
# file COPYING or http://www.opensource.org/licenses/mit-license.php.

_bitcoin_tx() {
    local cur prev words=() cword
    local bitcoin_tx

    # save and use original argument to invoke bitcoin-tx for -help
    # it might not be in $PATH
    bitcoin_tx="$1"

    COMPREPLY=()
    _get_comp_words_by_ref -n =: cur prev words cword

    case "$cur" in
        load=*:*)
            cur="${cur#load=*:}"
            _filedir
            return 0
            ;;
        *=*)	# prevent attempts to complete other arguments
            return 0
            ;;
    esac

    if [[ "$cword" == 1 || ( "$prev" != "-create" && "$prev" == -* ) ]]; then
        # only options (or an uncompletable hex-string) allowed
        # parse bitcoin-tx -help for options
        local helpopts
        helpopts=$($bitcoin_tx -help | sed -e '/^  -/ p' -e d )
        COMPREPLY=( $( compgen -W "$helpopts" -- "$cur" ) )
    else
        # only commands are allowed
        # parse -help for commands
        local helpcmds
        helpcmds=$($bitcoin_tx -help | sed -e '1,/Commands:/d' -e 's/=.*/=/' -e '/^  [a-z]/ p' -e d )
        COMPREPLY=( $( compgen -W "$helpcmds" -- "$cur" ) )
    fi

    # Prevent space if an argument is desired
    if [[ $COMPREPLY == *= ]]; then
        compopt -o nospace
    fi

    return 0
} &&
complete -F _bitcoin_tx bitcoin-tx

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