# bash completion for gdb                                  -*- shell-script -*-

_gdb()
{
    local cur prev words cword i
    _init_completion || return

    # gdb [options] --args executable-file [inferior-arguments ...]
    for ((i = 1; i < cword; i++)); do
        if [[ ${words[i]} == --args ]]; then
            _command_offset $((i + 1))
            return $?
        fi
    done

    # gdb [options] [executable-file [core-file or process-id]]
    if ((cword == 1)); then
        local IFS
        compopt -o filenames
        if [[ $cur == */* ]]; then
            # compgen -c works as expected if $cur contains any slashes.
            IFS=$'\n'
            COMPREPLY=($(PATH="$PATH:." compgen -d -c -- "$cur"))
        else
            # otherwise compgen -c contains Bash's built-in commands,
            # functions and aliases. Thus we need to retrieve the program
            # names manually.
            IFS=":"
            local path_array=($(
                command sed -e 's/:\{2,\}/:/g' -e 's/^://' -e 's/:$//' <<<"$PATH"
            ))
            IFS=$'\n'
            COMPREPLY=($(compgen -d -W '$(find "${path_array[@]}" . \
                -mindepth 1 -maxdepth 1 -not -type d -executable \
                -printf "%f\\n" 2>/dev/null)' -- "$cur"))
        fi
    elif ((cword == 2)); then
        COMPREPLY=($(compgen -W "$(command ps axo comm,pid |
            awk '{if ($1 ~ /^'"${prev##*/}"'/) print $2}')" -- "$cur"))
        compopt -o filenames
        COMPREPLY+=($(compgen -f -X '!?(*/)core?(.?*)' -o plusdirs \
            -- "$cur"))
    fi
} &&
    complete -F _gdb gdb

# ex: filetype=sh
