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# Avoid any encoding problems
export LANG=C
# check if messages are to be printed using color
unset ALL_OFF BOLD BLUE GREEN RED YELLOW
if [[ -t 2 ]]; then
# prefer terminal safe colored and bold text when tput is supported
if tput setaf 0 &>/dev/null; then
ALL_OFF="$(tput sgr0)"
BOLD="$(tput bold)"
BLUE="${BOLD}$(tput setaf 4)"
GREEN="${BOLD}$(tput setaf 2)"
RED="${BOLD}$(tput setaf 1)"
YELLOW="${BOLD}$(tput setaf 3)"
else
ALL_OFF="\e[1;0m"
BOLD="\e[1;1m"
BLUE="${BOLD}\e[1;34m"
GREEN="${BOLD}\e[1;32m"
RED="${BOLD}\e[1;31m"
YELLOW="${BOLD}\e[1;33m"
fi
fi
readonly ALL_OFF BOLD BLUE GREEN RED YELLOW
plain() {
local mesg=$1; shift
printf "${BOLD} ${mesg}${ALL_OFF}\n" "$@" >&2
}
msg() {
local mesg=$1; shift
printf "${GREEN}==>${ALL_OFF}${BOLD} ${mesg}${ALL_OFF}\n" "$@" >&2
}
msg2() {
local mesg=$1; shift
printf "${BLUE} ->${ALL_OFF}${BOLD} ${mesg}${ALL_OFF}\n" "$@" >&2
}
warning() {
local mesg=$1; shift
printf "${YELLOW}==> WARNING:${ALL_OFF}${BOLD} ${mesg}${ALL_OFF}\n" "$@" >&2
}
error() {
local mesg=$1; shift
printf "${RED}==> ERROR:${ALL_OFF}${BOLD} ${mesg}${ALL_OFF}\n" "$@" >&2
}
stat_busy() {
local mesg=$1; shift
printf "${GREEN}==>${ALL_OFF}${BOLD} ${mesg}...${ALL_OFF}" >&2
}
stat_done() {
printf "${BOLD}done${ALL_OFF}\n" >&2
}
_setup_workdir=false
setup_workdir() {
[[ -z $WORKDIR ]] && WORKDIR=$(mktemp -d --tmpdir "${0##*/}.XXXXXXXXXX")
_setup_workdir=true
trap 'trap_abort' INT QUIT TERM HUP
trap 'trap_exit' EXIT
}
cleanup() {
if [[ -n $WORKDIR ]] && $_setup_workdir; then
rm -rf "$WORKDIR"
fi
[[ -n $1 ]] && exit $1
}
abort() {
msg 'Aborting...'
cleanup 0
}
trap_abort() {
trap - EXIT INT QUIT TERM HUP
abort
}
trap_exit() {
trap - EXIT INT QUIT TERM HUP
cleanup
}
die() {
error "$*"
cleanup 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
}
##
# usage : lock_open_write( $fd, $path, $wait_message )
##
lock_open_write() {
local fd=$1
local path=$2
local msg=$3
# Only reopen the FD if it wasn't handed to us
if [[ $(readlink -f /dev/fd/$fd) != "${path}.lock" ]]; then
eval "exec $fd>${path}.lock"
fi
if ! flock -n $fd; then
stat_busy "$msg"
flock $fd
stat_done
fi
}
##
# usage : lock_open_read( $fd, $path, $wait_message )
##
lock_open_read() {
local fd=$1
local path=$2
local msg=$3
# Only reopen the FD if it wasn't handed to us
if [[ $(readlink -f /dev/fd/$fd) != "${path}.lock" ]]; then
eval "exec $fd>${path}.lock"
fi
if ! flock -sn $fd; then
stat_busy "$msg"
flock -s $fd
stat_done
fi
}
##
# usage : lock_close( $fd )
##
lock_close() {
local fd=$1
eval "exec $fd>&-"
}
##
# usage : get_full_version( [$pkgname] )
# return : full version spec, including epoch (if necessary), pkgver, pkgrel
##
get_full_version() {
# set defaults if they weren't specified in buildfile
pkgbase=${pkgbase:-${pkgname[0]}}
epoch=${epoch:-0}
if [[ -z $1 ]]; then
if [[ $epoch ]] && (( ! $epoch )); then
echo $pkgver-$pkgrel
else
echo $epoch:$pkgver-$pkgrel
fi
else
for i in pkgver pkgrel epoch; do
local indirect="${i}_override"
eval $(declare -f package_$1 | sed -n "s/\(^[[:space:]]*$i=\)/${i}_override=/p")
[[ -z ${!indirect} ]] && eval ${indirect}=\"${!i}\"
done
if (( ! $epoch_override )); then
echo $pkgver_override-$pkgrel_override
else
echo $epoch_override:$pkgver_override-$pkgrel_override
fi
fi
}
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