Rename Roam daily files to Obsidian daily files

convert_daily_notes.sh

#/usr/bin/env bash
set -euo pipefail
IFS=$'\n\t'

###########
# 
# Adapted from a script by @pmbauer:
# https://forum.obsidian.md/t/converting-roam-daily-notes-to-yyyy-mm-dd-format-with-backlinks/13770
# Changes are:
#   Use gsed because osx
#   Add a prefix constant to allow more flexibility over where the files are kept
#   Change delimiter of sed expression so prefix can include forward slashes
# 
# To run on OSX:
#   0. Ensure you have coreutils and gnu sed installed via brew
#   1. Place in the root of your vault
#   2. PATH=/usr/local/opt/coreutils/libexec/gnubin:$PAT *,\ 202[012].md | ./convert_daily_notes
# 
###########


# Set to e.g. Dailies/ to move the files to the Dailies directory
PREFIX=''

roam_date_to_obsidian() {
  date --date="$(echo "${*}" | gsed 's/th//;s/nd//;s/rd//;s/1st/1/')" '+%Y-%m-%d'
}

while IFS= read -r line; do
  roam_daily_note=${line/%.md/}
  obsidian_daily_note=$(roam_date_to_obsidian ${roam_daily_note})

  cat "${roam_daily_note}.md" >> ${PREFIX}${obsidian_daily_note}.md

  # update links
  gsed -i "s#\[\[${roam_daily_note}]]#[[${PREFIX}${obsidian_daily_note}]]#g" *.md */*.md || true

  # give it a relevant timestamp
  touch -d ${obsidian_daily_note} ${PREFIX}${obsidian_daily_note}.md

  rm "${roam_daily_note}.md"
done