glib/gio/completion/gio
Philip Withnall 2ca4d865b2 completion: Declare variables as local in gio completion script
Most variables were, but a few were not declared as local, and hence
leaked into the calling environment every time someone tab-completed the
`gio` command.

Signed-off-by: Philip Withnall <pwithnall@endlessos.org>

Fixes: #2275
2021-01-05 16:14:16 +00:00

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#
# Copyright (C) 2018 Red Hat, Inc.
#
# This library is free software; you can redistribute it and/or modify
# it under the terms of the GNU Lesser General Public License as
# published by the Free Software Foundation; either version 2.1 of the
# licence, or (at your option) any later version.
#
# This 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 Lesser General Public
# License for more details.
#
# You should have received a copy of the GNU Lesser General Public License
# along with this library; if not, see <http://www.gnu.org/licenses/>.
#
# Check for bash
[ -z "$BASH_VERSION" ] && return
####################################################################################################
# Check whether the suggestions have common prefix (i.e. suggestions won't be
# shown and prefix will be completed first)
__gio_has_common_prefix() {
local i
for (( i = 1; i < ${#COMPREPLY[@]}; i++ )); do
if [[ "${COMPREPLY[i-1]:${#cur}:1}" != "${COMPREPLY[i]:${#cur}:1}" ]]; then
return 1 # False
fi
done
return 0 # True
}
# Complete file location
__gio_location() {
# Prevent breaking on colons, we have to work with uris
local cur
_get_comp_words_by_ref -n : cur
# Resolve dirname for dir listing
local dir=""
if [[ $cur =~ "/"$ ]]; then
dir="$cur"
elif [[ $cur =~ "/" ]]; then
# Subtract basename because dirname cmd doesn't work well with schemes
dir=${cur%$(basename "$cur")}
fi
# List volumes and mounts
local mounts=( )
local mount
while IFS=$'\n' read mount; do
# Do not care about local mounts
[[ "$mount" =~ ^"file:" ]] && continue
# Use only matching mounts
[[ "$mount" =~ ^"$cur" && "$mount" != "$cur" ]] && mounts+=("$mount")
done < <(gio mount -li | sed -n -r 's/^ *(default_location|activation_root)=(.*)$/\2/p' | sort -u)
# Workaround to unescape dir name (e.g. "\ " -> " ")
local -a tmp="( ${dir} )"
local unescaped_dir="${tmp[0]}"
# List files
local files=()
local names=()
local name size type
while IFS=$'\t' read name size type; do
# Escape name properly
local escaped_name="$(printf "%q" "$name")"
# Append slash for directories and space for files
if [[ "$type" == "(directory)" ]]; then
escaped_name="$escaped_name/"
else
escaped_name="$escaped_name "
fi
local path="$dir$escaped_name"
# Use only matching paths
if [[ "$path" =~ ^"$cur" ]]; then
files+=("$path")
names+=("$escaped_name")
fi
done < <(gio list -hl "$unescaped_dir" 2> /dev/null)
COMPREPLY=("${files[@]}" "${mounts[@]}")
# Workaround to show suggestions as basenames only
if ! __gio_has_common_prefix; then
COMPREPLY=("${mounts[@]} ${names[@]}")
# Workaround to prevent overwriting suggestions, it adds empty
# suggestion, otherwise names with colons will be corrupted
COMPREPLY+=(" ")
return 0
fi
# Workaround to complete names with colons, it removes colon prefix from
# COMPREPLY
__ltrim_colon_completions "$cur"
}
__gio() {
# Complete subcommands
if (( ${COMP_CWORD} == 1 )); then
COMPREPLY=($(compgen -W "help version cat copy info launch list mime mkdir monitor mount move open rename remove save set trash tree" -- "${COMP_WORDS[1]}"))
compopt +o nospace
return 0
fi
# Complete file locations
__gio_location
}
####################################################################################################
complete -o nospace -F __gio gio