Synchronize library folder structure with immich albums

sync-albums.sh

#!/usr/bin/env bash
# Synchronize library folder structure with immich albums
# Usage: ./sync-albums.sh http://immich-host:port/api <api-key> <library-path>

set -e

BASE_URL="$1"
API_KEY="$2"
LIBRARY_PATH="${3%/}/"

album_list=$(mktemp)

api_get() {
  curl -s -X GET --location -H "X-api-key: $API_KEY" "$BASE_URL/$1"
}

_api_body() {
  method="$1"
  shift
  curl -s -X "$method" --data-raw "$2" --location -H "content-type: application/json" -H "X-api-key: $API_KEY" "$BASE_URL/$1"
}

urlencode() {
  jq -rn --arg data "$1" '$data|@uri'
}

api_post() {
  _api_body "POST" "$@"
}

api_delete() {
  _api_body "DELETE" "$@"
}

api_put() {
  _api_body "PUT" "$@"
}

_ere_quote() {
    # shellcheck disable=SC2016
    # shellcheck disable=SC2001
    sed 's/[][\.|$(){}?+*^]/\\&/g' <<< "$*"
}

get_album_id() {
  grep -E '^.*\|'"$(_ere_quote "$1")"'$' "$album_list" | awk -F'|' '{print $1}'
}

echo "Requesting all albums..."
while read -r album; do
  echo "$(echo "$album" | jq -r '.id')|$(echo "$album" | jq -r '.albumName')" >>"$album_list"
done < <(api_get album | jq -c '.[]')

echo "Requesting all albums assets..."
album_assets_dir="$(mktemp -d)"
while read -r album; do
  album_id="$(echo "$album" | awk -F'|' '{print $1}')"
  api_get "album/$(urlencode "$album_id")" | jq -r '.assets[].id' >"$album_assets_dir/$album_id"
done < "$album_list"

echo "Requesting all assets..."
while read -r asset; do

  original_path="$(echo "$asset" | jq -r '.originalPath')"
  album_name="$(dirname "${original_path#$LIBRARY_PATH}")"

  # create album if it doesn't exist
  album_id="$(get_album_id "$album_name")"
  if [ "$album_id" == "" ]; then
    echo "Creating album '$album_name'"
    # shellcheck disable=SC2016
    album_id="$(api_post album "$(jq -ncM --arg name "$album_name" '{"albumName":$name}')" | jq -r '.id')"
    # add the newly created album to the list so it will be found later
    echo "$album_id|$album_name" >>"$album_list"
  fi

  asset_id="$(echo "$asset" | jq -r '.id')"

  # retrieve albums that contain the asset
  # add this one (if not present), remove all the others
  # this reflects a file system structure: a photo cannot belong to multiple albums
  skip_add_to_album=
  while read -r asset_album_id; do

    if [ "$asset_album_id" != "$album_id" ]; then
      # asset must always belong to one album only
      api_delete "album/$(urlencode "$asset_album_id")/assets" "$(jq -ncM --arg id "$asset_id" '{"ids":[$id]}')" >/dev/null
    else
      # asset already belongs to album
      skip_add_to_album=y
      echo "Asset $asset_id already in album '$album_name'"
    fi

  done < <(grep -l "$asset_id" "$album_assets_dir"/* | xargs -r basename)

  if [ "$skip_add_to_album" == "" ]; then
    # TODO make a single call per album
    echo "Adding asset $asset_id to album '$album_name'"
    api_put "album/$(urlencode "$album_id")/assets" "$(jq -ncM --arg id "$asset_id" '{"ids":[$id]}')" >/dev/null
  fi

done < <(api_get asset | jq -c '.[]')

Published in immich-app/immich#3382