nutools/lib/ulib/ulibsh

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##@cooked comments #-*- coding: utf-8 mode: sh -*- vim:sw=4:sts=4:et:ai:si:sta:fenc=utf-8
## Version de ulib utilisable avec n'importe quel bourne shell: le script est
## relancé avec bash si nécessaire
##@cooked nocomments
##@inc[bash
## Relancer le script avec bash si nécessaire
if [ `basename "${BASH:-sh}"` = "sh" ]; then
bash=`which bash 2>/dev/null`
for bash in "$bash" /bin/bash /usr/bin/bash /usr/local/bin/bash; do
if [ -x "$bash" ]; then
exec "$bash" "$0" "$@"
fi
done
echo "error: this script requires bash"
exit 1
fi
##@inc]bash
##@inc[ulib
## Charger les librairies de ulib. Nécessite bash.
function eerror() { echo "error: $*" 1>&2; }
function die() { [ -n "$*" ] && eerror "$*"; exit 1; }
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ULIBDIR="${FORCED_ULIBDIR:-@@dest@@/lib/ulib}"
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if [ "$ULIBDIR" = "@@""dest""@@/lib/ulib" ]; then
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ULIBDIR="${BASH_SOURCE[0]}"
if [ -n "$ULIBDIR" -a -f "$ULIBDIR" ]; then
ULIBDIR="$(dirname "$ULIBDIR")"
else
ULIBDIR="$(dirname "$0")/ulib"
fi
fi
ULIBDIR="$(cd "$ULIBDIR"; pwd)"
ULIBDIRS=("$ULIBDIR")
ULIBINIT="$ULIBDIR"
[ -n "$ULIBPROVIDED" ] || ULIBPROVIDED=(ulib)
function uprovided() {
local ulib_
for ulib_ in "${ULIBPROVIDED[@]}"; do
[ "$ulib_" == "$1" ] && return 0
done
return 1
}
function uprovide() {
uprovided "$1" && return 0
ULIBPROVIDED=("${ULIBPROVIDED[@]}" "$1")
}
function urequire() {
local ulib_ ulibdir_ found_
[ -n "$*" ] || set DEFAULTS
for ulib_ in "$@"; do
found_=
for ulibdir_ in "${ULIBDIRS[@]}"; do
if [ -f "$ulibdir_/$ulib_" ]; then
found_=1
if ! uprovided "$ulib_"; then
uprovide "$ulib_"
source "$ulibdir_/$ulib_" || die
fi
break
elif [ "$ulib_" == "DEFAULTS" ]; then
found_=1
for ulib_ in base pretty sysinfos compat; do
if ! uprovided "$ulib_"; then
uprovide "$ulib_"
source "$ulibdir_/$ulib_" || die
fi
done
break
fi
done
[ -n "$found_" ] || die "Unable to find $ulib_ in ${ULIBDIR[*]}"
done
}
function ulib_add() {
[ -d "$1" ] && ULIBDIRS=("${ULIBDIRS[@]}" "$(cd "$1"; pwd)")
}
function ulib_sync() {
destdir="$(abspath "${1:-.}")"
[ "$destdir/ulib" != "$ULIBDIR" ] && cpdirnovcs "$ULIBDIR" "$destdir/ulib"
}
##@inc]ulib
uprovide ulibsh