contrib/bash_completion

remove the gpg stuff from hgeditor (superseded by the signing extension)

remove the gpg stuff from hgeditor, update the comments to make it clear
it can be used to show a diff while commiting

shopt -s extglob

_hg_commands()
{
    local all commands result

    all=($(hg --debug help | sed -e '1,/^list of commands:/d' \
				 -e '/^global options:/,$d' \
				 -e '/^ [^ ]/!d; s/^ //; s/[,:]//g;'))

    commands="${all[*]##debug*}"
    result=$(compgen -W "${commands[*]}" -- "$cur")

    # hide debug commands from users, but complete them if
    # there is no other possible command
    if [ "$result" = "" ]; then
	local debug
	debug=(${all[*]##!(debug*)})
	debug="${debug[*]/g/debug}"
	result=$(compgen -W "$debug" -- "$cur")
    fi

    COMPREPLY=(${COMPREPLY[@]:-} $result)
}

_hg_paths()
{
    local paths="$(hg paths | sed -e 's/ = .*$//')"
    COMPREPLY=(${COMPREPLY[@]:-} $( compgen -W "$paths" -- "$cur" ))
}

_hg_repos()
{
    local i
    for i in $( compgen -d -- "$cur" ); do
        test ! -d "$i"/.hg || COMPREPLY=(${COMPREPLY[@]:-} "$i")
    done
}

_hg_status()
{
    local files="$( hg status -$1 | cut -b 3- )"
    COMPREPLY=(${COMPREPLY[@]:-} $( compgen -W "$files" -- "$cur" ))
}

_hg_tags()
{
    local tags="$(hg tags | sed -e 's/[0-9]*:[a-f0-9]\{40\}$//; s/ *$//')"
    COMPREPLY=( ${COMPREPLY[@]:-} $(compgen -W "$tags" -- "$cur") )
}

# this is "kind of" ugly...
_hg_count_non_option()
{
    local i count=0
    local filters="$1"

    for (( i=1; $i<=$COMP_CWORD; i++ )); do
	if [[ "${COMP_WORDS[i]}" != -* ]]; then
	    if [[ ${COMP_WORDS[i-1]} == @($filters|$global_args) ]]; then
		continue
	    fi
	    count=$(($count + 1))
	fi
    done

    echo $(($count - 1))
}

_hg()
{
    local cur prev cmd opts i
    # global options that receive an argument
    local global_args='--cwd|-R|--repository'

    COMPREPLY=()
    cur="$2"
    prev="$3"

    # searching for the command
    # (first non-option argument that doesn't follow a global option that
    #  receives an argument)
    for (( i=1; $i<=$COMP_CWORD; i++ )); do
	if [[ ${COMP_WORDS[i]} != -* ]]; then
	    if [[ ${COMP_WORDS[i-1]} != @($global_args) ]]; then
		cmd="${COMP_WORDS[i]}"
		break
	    fi
	fi
    done

    if [[ "$cur" == -* ]]; then
	# this assumes that there are no commands with spaces in the name
	opts=$(hg -v help $cmd | sed -e '/^ *-/!d; s/ [^- ].*//')

	COMPREPLY=( ${COMPREPLY[@]:-} $(compgen -W "$opts" -- "$cur") )
	return
    fi

    # global options
    case "$prev" in
	-R|--repository)
	    _hg_repos
	    return
	;;
	--cwd)
	    # Stick with default bash completion
	    return
	;;
    esac

    if [ -z "$cmd" ] || [ $COMP_CWORD -eq $i ]; then
	_hg_commands
	return
    fi

    # canonicalize command name
    cmd=$(hg -q help "$cmd" | sed -e 's/^hg //; s/ .*//; 1q')

    if [ "$cmd" != status ] && [ "$prev" = -r ] || [ "$prev" = --rev ]; then
	_hg_tags
	return
    fi

    case "$cmd" in
	help)
	    _hg_commands
	;;
	export|manifest|update)
	    _hg_tags
	;;
	pull|push|outgoing|incoming)
	    _hg_paths
	    _hg_repos
	;;
	paths)
	    _hg_paths
	;;
	add)
	    _hg_status "u"
	;;
	commit)
	    _hg_status "mra"
	;;
	remove)
	    _hg_status "r"
	;;
	forget)
	    _hg_status "a"
	;;
	diff)
	    _hg_status "mra"
	;;
	revert)
	    _hg_status "mra"
	;;
	clone)
	    local count=$(_hg_count_non_option)
	    if [ $count = 1 ]; then
		_hg_paths
	    fi
            _hg_repos
	;;
	debugindex|debugindexdot)
	    COMPREPLY=(${COMPREPLY[@]:-} $( compgen -f -X "!*.i" -- "$cur" ))
	;;
	debugdata)
	    COMPREPLY=(${COMPREPLY[@]:-} $( compgen -f -X "!*.d" -- "$cur" ))
	;;
	cat)
	    local count=$(_hg_count_non_option '-o|--output')
	    if [ $count = 2 ]; then
		_hg_tags
	    else
		COMPREPLY=(${COMPREPLY[@]:-} $( compgen -f -- "$cur" ))
	    fi
	;;
	*)
	    COMPREPLY=(${COMPREPLY[@]:-} $( compgen -f -- "$cur" ))
	;;
    esac

}

complete -o bashdefault -o default -F _hg hg 2> /dev/null \
    || complete -o default -F _hg hg