restamp-notability-exports.sh

restamp-notability-exports.sh

#!/usr/bin/env bash
#
# Update the created/modified dates of PDF files to match the Notability .note
# native format's metadata.  Used to preserve date ordering of notes exported
# from Notability.
#
# Step 1. Back up notability to a shared drive in the native "Note" format
# Step 2. Change the backup format to PDF and create PDF versions
# Step 3. Run this script against each .note file
#


INPUT="$1"
if [ -z "$INPUT" ]; then
    echo "Syntax: $(basename $0) something.note" >&2
    exit 1
fi

pdf_file="$(basename "$INPUT" .note).pdf"

if [ ! -f "$pdf_file" ]; then
    echo "ERROR: PDF file [$pdf_file] does not exist" >&2
    exit 3
fi

set -e

test -d "tmp" && rm -rvf tmp

mkdir tmp || exit 1


# metadata="$(basename "$INPUT" .note)/metadata.plist"
# unzip -d "tmp" "$INPUT" "$metadata"
# ret=$?
# if [ $ret -ne 0 ]; then
#     rm -rf tmp
#     exit $ret
# fi

ditto -xk "$INPUT" "tmp"
metadata="$(find ./tmp -name metadata.plist)"
if [ ! -f "$metadata" ]; then
  echo "Metadata file [$metadata] does not exist" >&2
  rm -r tmp
  exit 1
fi

first=""
last=""
for i in $(plutil -convert xml1 -o - "$metadata" | awk '/NS.time/ { getline; print }' | rev | ggrep -Po '\.\K\d+' | rev)
do
    date=$(gdate -d @$(echo $(($(gdate -d 1/1/2001 +%s) + $i))) "+%Y%m%d%H%M")
    if [ -z "$first" ]; then
        first="$date"
        last="$date"
    else
        if [ "$date" -lt "$first" ]; then
            first="$date"
        fi

        if [ "$date" -gt "$last" ]; then
            last="$date"
        fi
    fi
done

echo "Setting create date to $first"
touch -t "$first" "$pdf_file"
echo "Setting mod date to $last"
touch -mt "$last" "$pdf_file"

chmod 0640 "$pdf_file"

rm -rf tmp