if [ -n "$GIT_DIR" ]

# $GIT_DIR is set, so we're running as a hook.

cd $GIT_DIR

# Git command exists? Cool, let's CD to the right place.

git rev-parse && cd "$(git rev-parse --show-toplevel)"

cd src/chrome/content/rules

WLIST=../../../../utils/ruleset-allowlist.csv

DELIM=","

(read; while IFS=$DELIM read listed_hash coverage_flag fetch_flag file; do

display_hash=$(echo $listed_hash | cut -c-7)

# Remove those that no longer exist

if [ ! -f $file ]; then

sed -i "/$listed_hash$DELIM$coverage_flag$DELIM$fetch_flag$DELIM$file/d" $WLIST

echo >&2 "Removed $file ($display_hash): file no longer exists"

elif [ "$coverage_flag" == "0" -a "$fetch_flag" == "0" ]; then

sed -i "/$listed_hash$DELIM$coverage_flag$DELIM$fetch_flag$DELIM$file/d" $WLIST

echo >&2 "Removed $file ($display_hash): obsolete, all flags set to false"

else

actual_hash=$(sha256sum $file | cut -c-64)

# Remove those whose hashes do not match

if [ "$listed_hash" != "$actual_hash" ]; then

sed -i "/$listed_hash$DELIM$coverage_flag$DELIM$fetch_flag$DELIM$file/d" $WLIST

echo >&2 "Removed $file ($display_hash): listed hash does not match actual hash"

fi

fi

done) < "$WLIST"

TMPFILE=`mktemp`

(head -n1 "$WLIST" && tail -n +2 "$WLIST" | LC_ALL=C sort -t"," -b -u -k4) > "$TMPFILE"

mv "$TMPFILE" "$WLIST"