FM / snapd

/snap/snapd/27710/usr/lib/snapd

Name	Size	Mode	Actions
apparmor/	-	0755	rm
apparmor.d/	-	0755	rm
apparmor_parser	1700832	0755	edit dl rm
complete.sh	5394	0644	edit dl rm
etelpmoc.sh	7031	0644	edit dl rm
info	118	0644	edit dl rm
preseed.json	841	0644	edit dl rm
snap-bootstrap	13865297	0755	edit dl rm
snap-confine	218241	0755	edit dl rm
snap-confine.caps	143	0644	edit dl rm
snap-confine.v2-only.caps	121	0644	edit dl rm
snap-debug-info.sh	2372	0755	edit dl rm
snap-device-helper	67545	0755	edit dl rm
snap-discard-ns	51113	0755	edit dl rm
snap-exec	5616696	0755	edit dl rm
snap-failure	3219529	0755	edit dl rm
snap-fde-keymgr	5328969	0755	edit dl rm
snap-gdbserver-shim	1079280	0755	edit dl rm
snap-gpio-helper	3080265	0755	edit dl rm
snap-mgmt	22207	0755	edit dl rm
snap-mgmt-selinux	3269	0755	edit dl rm
snap-preseed	11771977	0755	edit dl rm
snap-recovery-chooser	9486409	0755	edit dl rm
snap-repair	8765513	0755	edit dl rm
snap-seccomp	3010897	0755	edit dl rm
snap-strace-shim	34273	0755	edit dl rm
snap-update-ns	6718584	0755	edit dl rm
snapctl	8455848	0755	edit dl rm
snapd	31965257	0755	edit dl rm
snapd-apparmor	2695241	0755	edit dl rm
snapd.core-fixup.sh	3826	0755	edit dl rm
snapd.run-from-snap	73	0755	edit dl rm
system-shutdown	38585	0755	edit dl rm

Edit: /snap/snapd/27710/usr/lib/snapd/etelpmoc.sh (7031B)

# shellcheck shell=bash
#
#  Copyright (C) 2017 Canonical Ltd
#
#  This program is free software: you can redistribute it and/or modify
#  it under the terms of the GNU General Public License version 3 as
#  published by the Free Software Foundation.
#
#  This program is distributed in the hope that it will be useful,
#  but WITHOUT ANY WARRANTY; without even the implied warranty of
#  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
#  GNU General Public License for more details.
#
#  You should have received a copy of the GNU General Public License
#  along with this program.  If not, see <http://www.gnu.org/licenses/>.

# etelpmoc is the reverse of complete: it de-serialises the tab completion
# request into the appropriate environment variables expected by the tab
# completion tools, performs whatever action is wanted, and serialises the
# result. It accomplishes this by having functions override the builtin
# completion commands.
#
# this always runs "inside", in the same environment you get when doing "snap
# run --shell", and snap-exec is the one setting the first argument to the
# completion script set in the snap. The rest of the arguments come through
# from snap-run --command=complete <snap> <args...>

_die() {
    echo "$*" >&2
    exit 1
}

if [[ "${BASH_SOURCE[0]}" != "$0" ]]; then
    _die "ERROR: this is meant to be run, not sourced."
fi

if [[ "${#@}" -lt 8 ]]; then
    _die "USAGE: $0 <script> <COMP_TYPE> <COMP_KEY> <COMP_POINT> <COMP_CWORD> <COMP_WORDBREAKS> <COMP_LINE> cmd [args...]"
fi

# De-serialize the command line arguments and populate tab completion environment
_compscript="$1"
shift
COMP_TYPE="$1"
shift
COMP_KEY="$1"
shift
COMP_POINT="$1"
shift
COMP_CWORD="$1"
shift
COMP_WORDBREAKS="$1"
shift
# duplication, but whitespace is eaten and that throws off COMP_POINT
COMP_LINE="$1"
shift
# rest of the args is the command itself
COMP_WORDS=("$@")

COMPREPLY=()

if [[ ! "$_compscript" ]]; then
    _die "ERROR: completion script filename can't be empty"
fi
if [[ ! -f "$_compscript" ]]; then
    _die "ERROR: completion script does not exist"
fi

# Source the bash-completion library functions and common completion setup
# shellcheck disable=SC1091
. /usr/share/bash-completion/bash_completion
# Now source the snap's 'completer' script itself
# shellcheck disable=SC1090
. "$_compscript"

# _compopts is an associative array, which keys are options. The options are
# described in bash(1)'s description of the -o option to the "complete"
# builtin, and they affect how the completion options are presented to the user
# (e.g. adding a slash for directories, whether to add a space after the
# completion, etc). These need setting in the user's environment so need
# serializing separately from the completions themselves.
declare -A _compopts

# wrap compgen, setting _compopts for any options given.
# (as these options need handling separately from the completions)
compgen() {
    local opt

while getopts :o: opt; do
        case "$opt" in
            o)
                _compopts["$OPTARG"]=1
                ;;
            *)
                # Do nothing, explicitly. This silences shellcheck's detector
                # of unhandled command line options.
                ;;
        esac
    done
    builtin compgen "$@"
}

# compopt replaces the original compopt with one that just sets/unsets entries
# in _compopts
compopt() {
    local i

for ((i=0; i<$#; i++)); do
        # in bash, ${!x} does variable indirection. Thus if x=1, ${!x} becomes $1.
        case "${!i}" in
            -o)
                ((i++))
                _compopts[${!i}]=1
                ;;
            +o)
                ((i++))
                unset _compopts[${!i}]
                ;;
        esac
    done
}

_compfunc="_minimal"
_compact=""
# this is a lot more complicated than it should be, but it's how you
# get the result of 'complete -p "$1"' into an array, splitting it as
# the shell would.
readarray -t _comp < <(xargs -n1 < <(complete -p "$1") )
# _comp is now an array of the appropriate 'complete' invocation, word-split as
# the shell would, so we can now inspect it with getopts to determine the
# appropriate completion action.
# Unfortunately shellcheck doesn't know about readarray:
# shellcheck disable=SC2154
if [[ "${_comp[*]}" ]]; then
    while getopts :abcdefgjksuvA:C:W:o:F: opt "${_comp[@]:1}"; do
        case "$opt" in
            a)
                _compact="alias"
                ;;
            b)
                _compact="builtin"
                ;;
            c)
                _compact="command"
                ;;
            d)
                _compact="directory"
                ;;
            e)
                _compact="export"
                ;;
            f)
                _compact="file"
                ;;
            g)
                _compact="group"
                ;;
            j)
                _compact="job"
                ;;
            k)
                _compact="keyword"
                ;;
            s)
                _compact="service"
                ;;
            u)
                _compact="user"
                ;;
            v)
                _compact="variable"
                ;;
            A)
                _compact="$OPTARG"
                ;;
            o)
                _compopts["$OPTARG"]=1
                ;;
            C|F)
                _compfunc="$OPTARG"
                ;;
            W)
                readarray -t COMPREPLY < <( builtin compgen -W "$OPTARG" -- "${COMP_WORDS[COMP_CWORD]}" )
                _compfunc=""
                ;;
            *)
                # P, G, S, and X are not supported yet
                _die "ERROR: unknown option -$OPTARG"
                ;;
        esac
    done
fi

_bounce=""
case "$_compact" in
    # these are for completing things that'll be interpreted by the
    # "outside" bash, so send them back to be completed there.
    "alias"|"export"|"job"|"variable")
        _bounce="$_compact"
        ;;
esac

if [ ! "$_bounce" ]; then
    if [ "$_compact" ]; then
        readarray -t COMPREPLY < <( builtin compgen -A "$_compact" -- "${COMP_WORDS[COMP_CWORD]}" )
    elif [ "$_compfunc" ]; then
        # execute completion function (or the command if -C)

# from https://www.gnu.org/software/bash/manual/html_node/Programmable-Completion.html:
        #   When the function or command is invoked, the first argument ($1) is
        #   the name of the command whose arguments are being completed, the
        #   second argument ($2) is the word being completed, and the third
        #   argument ($3) is the word preceding the word being completed on the
        #   current command line.
        # that's "$1" "${COMP_WORDS[COMP_CWORD]}" and "${COMP_WORDS[COMP_CWORD-1]}"
        # (probably)
        $_compfunc "$1" "${COMP_WORDS[COMP_CWORD]}" "${COMP_WORDS[COMP_CWORD-1]}"
    fi
fi

# print completions to stdout
echo "${!_compopts[@]}"
echo "$_bounce"
echo ""
printf "%s\\n" "${COMPREPLY[@]}"

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