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buildsystem: be more cautious when overwriting package cache files

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This commit is contained in:
MilhouseVH 2019-01-13 22:08:37 +00:00
parent 84c634a8ce
commit 76067bdf80
1 changed files with 21 additions and 8 deletions
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29
config/functions
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@ -478,33 +478,46 @@ debug_strip() {
init_package_cache() {
local _ANCHOR="@?+?@" DIR
local temp_global temp_local
# If the package caches are unset, then populate them
if [ -z "${_CACHE_PACKAGE_LOCAL}" -o -z "${_CACHE_PACKAGE_GLOBAL}" ]; then
_CACHE_PACKAGE_LOCAL="${BUILD}/.cache_package_local"
_CACHE_PACKAGE_GLOBAL="${BUILD}/.cache_package_global"
mkdir -p "${BUILD}"
: > "${_CACHE_PACKAGE_LOCAL}"
: > "${_CACHE_PACKAGE_GLOBAL}"
temp_global="$(mktemp)"
temp_local="$(mktemp)"
# cache project/device folder for a package
if [ -n $DEVICE ]; then
for DIR in $(find $ROOT/projects/$PROJECT/devices/$DEVICE/packages -type d 2>/dev/null); do
[ -r "$DIR/package.mk" ] && echo "${DIR}${_ANCHOR}" >> "${_CACHE_PACKAGE_LOCAL}"
[ -r "$DIR/package.mk" ] && echo "${DIR}${_ANCHOR}" >> "${temp_local}"
done
fi
# cache project folder for a package
for DIR in $(find $ROOT/projects/$PROJECT/packages -type d 2>/dev/null); do
[ -r "$DIR/package.mk" ] && echo "${DIR}${_ANCHOR}" >> "${_CACHE_PACKAGE_LOCAL}"
[ -r "$DIR/package.mk" ] && echo "${DIR}${_ANCHOR}" >> "${temp_local}"
done
# cache packages folder
for DIR in $(find $ROOT/$PACKAGES -type d 2>/dev/null); do
[ -r "$DIR/package.mk" ] && echo "${DIR}${_ANCHOR}" >> "${_CACHE_PACKAGE_GLOBAL}"
[ -r "$DIR/package.mk" ] && echo "${DIR}${_ANCHOR}" >> "${temp_global}"
done
_CACHE_PACKAGE_LOCAL="${BUILD}/.cache_package_local"
_CACHE_PACKAGE_GLOBAL="${BUILD}/.cache_package_global"
export _CACHE_PACKAGE_LOCAL _CACHE_PACKAGE_GLOBAL
# overwrite existing cache files only when they are invalid, or not yet created
mkdir -p "$(dirname "${_CACHE_PACKAGE_GLOBAL}")"
if [ -f "${_CACHE_PACKAGE_LOCAL}" ] && cmp -s "${temp_local}" "${_CACHE_PACKAGE_LOCAL}"; then
rm "${temp_local}"
else
mv "${temp_local}" "${_CACHE_PACKAGE_LOCAL}"
fi
if [ -f "${_CACHE_PACKAGE_GLOBAL}" ] && cmp -s "${temp_global}" "${_CACHE_PACKAGE_GLOBAL}"; then
rm "${temp_global}"
else
mv "${temp_global}" "${_CACHE_PACKAGE_GLOBAL}"
fi
fi
}