if [ -z "$1" ]; then
  echo "Usage:" >&2
  echo "$0 lang > autoformat.sh" >&2
  exit 1
fi
OPTS="${OPTS:---mode=$1}"
GLOB="${GLOB:-**/*.$1}"
# --style=google : google style (similar to 1tbs)
# -H             : Pad header (space after if, for, while)
# -K             : Indent cases
# -N             : Indent namespaces
# -S             : Indent switches
# -j             : Always add brackets (even on one line if statements)
# -n             : Don't make a backup
# -p             : Pad operators
# -s2            : Two spaces
# -xG            : Indent modifiers
# -xc            : Brace attached to class names
# -xe            : Erase blank lines
# -xl            : Attach inlines
# -xn            : Attach bracket to namespace
# -z2            : Force Linux lineending
BASE_OPTS='-H -K -N -S -j -n -p -s2 -xG -xc -xe -xl -xn -z2'

cat << EOF
#!/bin/zsh
# For support:
# https://austenwares.com/gogs/stonewareslord/autoformat
#
GLOB=( $GLOB )
OPTS=( $BASE_OPTS $OPTS )
astyle \$OPTS \$GLOB|\\grep -P '^(?!Unchanged)'||true
EOF