uncrustify config and reformatting tool

reformat.sh

+#!/bin/bash
+
+script_dir="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"
+
+function error () {
+    echo "ERROR: $@" >&2
+    exit 1
+}
+
+function usage() {
+    cat \
+<<EOF
+USAGE: reformat.sh [-x] [-i] [-c CFG] [-b FILE] {-a | FILE...}
+    -i: perform in-place (will ask to confirm if being done recursively)
+    -c CFG: use CFG as the uncrustify config (default: $script_dir/uc-codes.cfg)
+    -b FILE[,...]: add FILE to the blacklist of directories (in the form *FILE/*)
+        multiple files can be added by separating with commas
+    -a: perform recursively on all files ending in .c or .h
+        if -a not provided, then perform on all files passed in
+    -x: instead of formatting, check if output format is the same as input
+EOF
+}
+
+function build_blacklist() {
+    for x in $@ ; do
+        echo -n "-and -not -path \*$x/\* "
+    done
+}
+
+function getfiles() {
+    find . \( -name \*.c -or -name \*.h \) $(build_blacklist $@)
+}
+
+cfg=$script_dir/uc-codes.cfg
+
+which uncrustify > /dev/null 2>&1 || error "uncrustify not found"
+
+do_inplace=no
+do_recursive=no
+do_check=no
+blacklist=
+
+while getopts ":ib:ax" opt; do
+    case $opt in
+        i)
+            do_inplace=yes
+            ;;
+        b)
+            blacklist=$(cat $OPTARG | sed s/,/ /g)
+            ;;
+        c)
+            cfg=$OPTARG
+            ;;
+        a)
+            do_recursive=yes
+            ;;
+        x)
+            do_check=yes
+            ;;
+        \?)
+            usage
+            error "invalid argument: -$OPTARG"
+            ;;
+    esac
+done
+
+shift $((OPTIND-1))
+
+[[ -e $cfg ]] || ( usage && error "config file $cfg not found" )
+
+[[ $# -gt 0 && $do_recursive == yes ]] && \
+    usage && error "no file args expected in recursive mode"
+[[ $# -eq 0 && $do_recursive == no ]] && \
+    usage && error "expected file args in non-recursive mode"
+
+if [[ $do_recursive == yes ]] ; then
+    file_list="$(getfiles $blacklist)"
+else
+    file_list="$@"
+fi
+
+if [[ $do_recursive == yes && $do_inplace == yes ]] ; then
+    echo -n "Do recursive in-place reformat? (y/n) "
+    read answer
+    [[ $answer =~ "[^y].*" ]] && echo "...aborting reformat" && exit 1
+fi
+
+[[ $do_inplace == yes ]] \
+    && output_arg="--replace" \
+    || output_arg=
+
+if [[ $do_check == yes ]] ; then
+    check_arg=--check
+    output_arg=
+    echo "checking format..."
+else
+    check_arg=
+fi
+
+function echolines () {
+    for x in $@ ; do echo $x ; done
+}
+
+echolines $file_list | uncrustify $check_arg -c $cfg $output_arg -F -