blob: 335f7f5fdf89e3ff33e3282bd126829d845c8dc1 [file] [log] [blame]
#!/bin/sh
#
# This code is licensed under the GPL version 2 or later. See
# the COPYING file in the top-level directory.
substat=".git-submodule-status"
command=$1
shift
maybe_modules="$@"
test -z "$maybe_modules" && exit 0
test -z "$GIT" && GIT=$(command -v git)
cd "$(dirname "$0")/.."
no_git_error=
if ! test -e ".git"; then
no_git_error='no git checkout exists'
elif test -z "$GIT"; then
no_git_error='git binary not found'
fi
is_git() {
test -z "$no_git_error"
}
update_error() {
echo "$0: $*"
echo
echo "Unable to automatically checkout GIT submodules '$modules'."
echo "If you require use of an alternative GIT binary (for example to"
echo "enable use of a transparent proxy), please disable automatic"
echo "GIT submodule checkout with:"
echo
echo " $ ./configure --disable-download"
echo
echo "and then manually update submodules prior to running make, with:"
echo
echo " $ GIT='tsocks git' scripts/git-submodule.sh update $modules"
echo
exit 1
}
validate_error() {
if is_git && test "$1" = "validate"; then
echo "GIT submodules checkout is out of date, and submodules"
echo "configured for validate only. Please run"
echo " scripts/git-submodule.sh update $maybe_modules"
echo "from the source directory or call configure with"
echo " --enable-download"
fi
exit 1
}
check_updated() {
local CURSTATUS OLDSTATUS
CURSTATUS=$($GIT submodule status $module)
OLDSTATUS=$(grep $module $substat)
test "$CURSTATUS" = "$OLDSTATUS"
}
if is_git; then
test -e $substat || touch $substat
modules=""
for m in $maybe_modules
do
$GIT submodule status $m 1> /dev/null 2>&1
if test $? = 0
then
modules="$modules $m"
grep $m $substat > /dev/null 2>&1 || $GIT submodule status $module >> $substat
else
echo "warn: ignoring non-existent submodule $m"
fi
done
else
modules=$maybe_modules
fi
case "$command" in
status|validate)
for module in $modules; do
if is_git; then
check_updated $module || validate_error "$command"
elif ! (set xyz "$module"/* && test -e "$2"); then
# The directory does not exist or it contains no files
echo "$0: sources not available for $module and $no_git_error"
validate_error "$command"
fi
done
;;
update)
is_git || {
echo "$0: unexpectedly called with submodules but $no_git_error"
exit 1
}
$GIT submodule update --init $modules 1>/dev/null
test $? -ne 0 && update_error "failed to update modules"
for module in $modules; do
check_updated $module || echo Updated "$module"
done
(while read -r; do
for module in $modules; do
case $REPLY in
*" $module "*) continue 2 ;;
esac
done
printf '%s\n' "$REPLY"
done
$GIT submodule status $modules
test $? -ne 0 && update_error "failed to save git submodule status" >&2) < $substat > $substat.new
mv -f $substat.new $substat
;;
esac
exit 0