mirror of
https://github.com/moparisthebest/pacman
synced 2024-11-14 21:35:02 -05:00
3cb1669e07
Extract array detection into its own utility function that ensures extglob is enabled. Suggested-by: Dave Reisner <dreisner@archlinux.org> Signed-off-by: Allan McRae <allan@archlinux.org>
86 lines
1.9 KiB
Bash
86 lines
1.9 KiB
Bash
#!/bin/bash
|
|
#
|
|
# util.sh - general utility functions
|
|
#
|
|
# Copyright (c) 2006-2016 Pacman Development Team <pacman-dev@archlinux.org>
|
|
# Copyright (c) 2002-2006 by Judd Vinet <jvinet@zeroflux.org>
|
|
#
|
|
# This program is free software; you can redistribute it and/or modify
|
|
# it under the terms of the GNU General Public License as published by
|
|
# the Free Software Foundation; either version 2 of the License, or
|
|
# (at your option) any later version.
|
|
#
|
|
# 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/>.
|
|
#
|
|
|
|
[[ -n "$LIBMAKEPKG_UTIL_UTIL_SH" ]] && return
|
|
LIBMAKEPKG_UTIL_UTIL_SH=1
|
|
|
|
|
|
##
|
|
# usage : in_array( $needle, $haystack )
|
|
# return : 0 - found
|
|
# 1 - not found
|
|
##
|
|
in_array() {
|
|
local needle=$1; shift
|
|
local item
|
|
for item in "$@"; do
|
|
[[ $item = "$needle" ]] && return 0 # Found
|
|
done
|
|
return 1 # Not Found
|
|
}
|
|
|
|
# tests if a variable is an array
|
|
is_array() {
|
|
local v=$1
|
|
local ret=1
|
|
|
|
# this function requires extglob - save current options to restore later
|
|
local shellopts=$(shopt -p)
|
|
shopt -s extglob
|
|
|
|
if [[ $(declare -p "$i") == declare\ -*([[:alnum:]])a*([[:alnum:]])\ * ]]; then
|
|
ret=0
|
|
fi
|
|
|
|
eval "$shellopts"
|
|
return $ret
|
|
}
|
|
|
|
# Canonicalize a directory path if it exists
|
|
canonicalize_path() {
|
|
local path="$1";
|
|
|
|
if [[ -d $path ]]; then
|
|
(
|
|
cd_safe "$path"
|
|
pwd -P
|
|
)
|
|
else
|
|
printf "%s\n" "$path"
|
|
fi
|
|
}
|
|
|
|
dir_is_empty() {
|
|
(
|
|
shopt -s dotglob nullglob
|
|
files=("$1"/*)
|
|
(( ${#files} == 0 ))
|
|
)
|
|
}
|
|
|
|
cd_safe() {
|
|
if ! cd "$1"; then
|
|
error "$(gettext "Failed to change to directory %s")" "$1"
|
|
plain "$(gettext "Aborting...")"
|
|
exit 1
|
|
fi
|
|
}
|