split-browser-bookmark-json2tsv

#!/bin/bash
#
# "Manage Bookmarks" (Ctrl-Shift-o) - "Import and Backup" - "Backup..."
# split-browser-bookmark-json2tsv <bookmarks-2022-03-04.json >>bookmarks.tsv
# (Conversion happens in a diposable qube, which must have jq installed.)

set -e -u -o pipefail

jq_filter='recurse(.children[]?) |
select(.typeCode==1) |
(.dateAdded | tostring) + "\t" + .uri + "\t" + (.title | gsub("[\t\n]"; " "))'

qvm-run-vm @dispvm "jq -r ${jq_filter@Q}" |
LC_ALL=C stdbuf -oL tr -c '\040-\176\t\n' _ |
grep -Ex $'[0-9]{15,16}(\t[^\t]+){2}' |
sort -sn |
uniq |
while IFS=$'\t' read -r microseconds url title; do
    date=$(date --rfc-3339=seconds --date=@$(( microseconds / 1000000 )))
    printf '%s\t%s\t%s\n' "$date" "$url" "$title"
done