rever_UG_settings.bash

#!/bin/bash

if [ $# -ne 1 ]; then
    echo "Exactly 1 argument expected - the path to the repo."
    exit -1
fi

file=$1/Ultimate_Geography/Ultimate_Geography.json

# The subshell below reads from Ultimate_Geography.json so we should not write to it directly.
# That's why we save everything to a temp file first, and only then move it to the original.
temp_output=$(mktemp)

{
    # Print the first 792 lines from the original file
    # This is up to the "[ 'notes': " part and contains the custom settings.
    head -n 792 <(git cat-file blob HEAD:$file);
    # Take lines from 793 on, which contain the notes information, and remove any "marked" tags
    tail -n +793 $file | awk '
    /"marked"/ {
        if(last ~ /,\s*$/) last=substr(last, 1, length(last)-2)
    }
    NR>1 && last!~"marked" { print last}
    { last = $0 }
    END { print last }'
} >$temp_output

mv $temp_output $file