openwrt-owl/package/kernel/mac80211/scripts/import-backports.sh

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#!/usr/bin/env bash
BASE=$1; shift
usage() {
echo "Usage: $0 NNN <file>..."
exit 1
}
check_number() {
case "$1" in
[0-9][0-9][0-9]) return 0;;
esac
return 1;
}
patch_header()
{
awk '
/^(---|\*\*\*|Index:)[ \t][^ \t]|^diff -/ \
{ exit }
{ print }
'
}
strip_diffstat()
{
awk '
/#? .* \| / \
{ eat = eat $0 "\n"
next }
/^#? .* files? changed(, .* insertions?\(\+\))?(, .* deletions?\(-\))?/ \
{ eat = ""
next }
{ print eat $0
eat = "" }
'
}
strip_trailing_whitespace() {
sed -e 's:[ '$'\t'']*$::'
}
fixup_header() {
awk '
/^From / { next }
/^Subject: / {
sub("Subject: \\[[^\]]*\\]", "Subject: [PATCH]")
}
{ print }
'
}
check_number "$BASE" || usage
quilt series > /dev/null || {
echo "Not in quilt directory"
exit 2
}
get_next() {
NEW=$BASE
quilt series | while read CUR; do
[ -n "$CUR" ] || break
CUR=${CUR%%-*}
check_number "$CUR" || continue
[ "$CUR" -lt "$NEW" ] && continue
[ "$CUR" -ge "$(($BASE + 100))" ] && continue
NEW="$(($CUR + 1))"
echo $NEW
done | tail -n1
}
CUR=`get_next`
CUR="${CUR:-$BASE}"
while [ -n "$1" ]; do
FILE="$1"; shift
NAME="$(basename $FILE)"
NAME="${NAME#[0-9]*-}"
echo -n "Processing patch $NAME: "
[ -e "$FILE" ] || {
echo "file $FILE not found"
exit 1
}
grep -qE "$NAME$" patches/series && {
echo "already applied"
continue
}
quilt new "$CUR-$NAME" || exit 1
patch_header < "$FILE" |
strip_diffstat |
strip_trailing_whitespace |
fixup_header > "patches/$CUR-$NAME"
quilt fold < "$FILE" || {
cp "$FILE" ./cur_patch
echo "patch $FILE failed to apply, copied to ./cur_patch"
exit 1
}
quilt refresh -p ab --no-index --no-timestamps
CUR="$(($CUR + 1))"
done
exit 0