gluon/package/gluon-core/files/etc/uci-defaults/zzz-gluon-upgrade
2013-10-09 21:56:32 +02:00

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#!/bin/sh
UPGRADE_DIR=/lib/gluon/upgrade
VERSION_DIR=/lib/gluon/version
mkdir -p "$VERSION_DIR"
version_of() {
opkg status "gluon-$1" | grep '^Version: ' | cut -d' ' -f 2
}
oldversion_of() {
cat "$VERSION_DIR"/"$1" 2>/dev/null
}
do_dir() {
[ -d "$1" ] || return
local s
for s in "$1"/*; do "$s"; done
}
do_component() {
local component="$1"
local version="$(version_of "$component")"
[ "$version" ] || continue
(
cd "$component"
local oldversion="$(oldversion_of "$component")"
if [ -z "$oldversion" ]; then
do_dir initial
else
local v
for v in *; do
[ "$v" != initial -a "$v" != invariant ] || continue
# The return value of opkg compare-versions is negated
if ! opkg compare-versions "$v" '>>' "$oldversion"; then
do_dir "$v"
fi
done
fi
do_dir invariant
echo "$version" > "$VERSION_DIR"/"$component"
)
}
cd "$UPGRADE_DIR"
do_component core
for component in *; do
[ "$component" != 'core' ] || continue
do_component "$component"
done