xmllint indent and file overwrite helpers

xmltidy.sh

# https://stackoverflow.com/a/40190976/2732184
# https://unix.stackexchange.com/a/50202/315380
# https://askubuntu.com/a/222371/575565

file=""
indent="    "
overwrite=0

while [ $# -gt 0 ]
do
    unset OPTIND
    unset OPTARG
    while getopts i:o:w options
    do
    case $options in
        i)
            indent="$OPTARG"
            # echo "--indent=$indent"
            ;;
        o)
            output="$OPTARG"
            # echo "--output=$output"
            ;;
        w)
            overwrite=1
            # echo "--overwrite"
            ;;
        esac
   done
   shift $((OPTIND-1))
   # file="${file} $1"
   file="${1:-$file}"
   shift
done

# echo "File=$file"

if [ -z "$file" ]; then
    echo "No file specified!"
    exit 1
fi

if [ ! -z "$output" ]; then
    XMLLINT_INDENT="$indent" xmllint "$file" --format -o "$output"
    exit 1
fi

if [ "$overwrite" -eq 1 ]; then
    # XMLLINT_INDENT="$indent" xmllint "$file" --format > "$file.tmp" && mv "$file.tmp" "$file"
    XMLLINT_INDENT="$indent" xmllint "$file" --format --output "$file.tmp" && mv "$file.tmp" "$file"
    exit 1
fi

XMLLINT_INDENT="$indent" xmllint "$file" --format
exit 1

Lint .xml files in a directory

xmltidydir.sh

#! /bin/sh
for file
do
    echo "-> $file"
    # XMLLINT_INDENT="    " xmllint $file --format > $file.tmp && mv $file.tmp $file
    XMLLINT_INDENT="    " xmllint $file --format --output $file.tmp && mv $file.tmp $file
done

Usage

find my-project -type f -name "*.xml" -path "my-project/configs/*" | xargs -- ./path-to/xmltidydir.sh

Source: https://unix.stackexchange.com/a/50202/315380