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#!/usr/bin/env bash
# global constants
outdir=xml
function abort()
{
(>&2 echo "$1") # output to stderr
exit 1
}
filepath="$1"
if [ -z "$filepath" ]; then
abort "file path is not given."
fi
shift
# convert the file path to absolute path.
filepath=`realpath "$filepath"`
# remove existing output directory if one exists.
if [ -d $outdir ]; then
rm -rf $outdir || abort "failed to remove the existing output directory '$outdir'."
fi
mkdir $outdir || abort "failed to create an output directory '$outdir'."
# unzip all inside the output directory.
cd $outdir
unzip "$filepath" > /dev/null || abort "failed to unzip $filepath."
# temporarily replace bash's internal field separators to handle file names with spaces.
_IFS="$IFS"
IFS=$'\n'
for _file in $(find . -type f); do
_mimetype=`file --mime-type --brief "$_file"` || abort "failed to determine the mime type of $_file."
if [ $_mimetype = "application/xml" ] || [ $_mimetype = "text/xml" ]; then
# beautify the XML file content.
_temp=$(mktemp) || abort "failed to create a temporary file."
xmllint --format $_file > $_temp || abort "failed to run xmllint on $_file."
mv $_temp $_file || abort "failed to update $_file."
fi
done
# restore the original separators.
IFS="$_IFS"
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