This is a python script designed to automatically create albums in [Immich](https://immich.app/) from a folder structure mounted into the Immich container.
This is useful for automatically creating and populating albums for external libraries.
This script is mostly based on the following original script: [REDVM/immich_auto_album.py](https://gist.github.com/REDVM/d8b3830b2802db881f5b59033cf35702)
Create Immich Albums from an external library path based on the top level folders
positional arguments:
root_path The external libarary's root path in Immich
api_url The root API URL of immich, e.g. https://immich.mydomain.com/api/
api_key The Immich API Key to use
options:
-h, --help show this help message and exit
-r ROOT_PATH, --root-path ROOT_PATH
Additional external libarary root path in Immich; May be specified multiple times for multiple import paths or external libraries. (default: None)
-u, --unattended Do not ask for user confirmation after identifying albums. Set this flag to run script as a cronjob. (default: False)
-a ALBUM_LEVELS, --album-levels ALBUM_LEVELS
Number of sub-folders or range of sub-folder levels below the root path used for album name creation. Positive numbers start from top of the folder structure, negative numbers from the bottom. Cannot be 0. If a range should be set, the
start level and end level must be separated by a comma like '<startLevel>,<endLevel>'. If negative levels are used in a range, <startLevel> must be less than or equal to <endLevel>. (default: 1)
Mode for the script to run with. CREATE = Create albums based on folder names and provided arguments; CLEANUP = Create album nmaes based on current images and script arguments, but delete albums if they exist; DELETE_ALL = Delete all
albums. If the mode is anything but CREATE, --unattended does not have any effect. Only performs deletion if -d/--delete-confirm option is set, otherwise only performs a dry-run. (default: CREATE)
-d, --delete-confirm Confirm deletion of albums when running in mode CLEANUP or DELETE_ALL. If this flag is not set, these modes will perform a dry run only. Has no effect in mode CREATE (default: False)
A Docker image is provided to be used as a runtime environment. It can be used to either run the script manually, or via cronjob by providing a crontab expression to the container. The container can then be added to the Immich compose stack directly.
#### Environment Variables
The environment variables are analoguous to the script's command line arguments.
| ROOT_PATH | yes | A single or a comma separated list of import paths for external libraries in Immich. <br>Refer to [Choosing the correct `root_path`](#choosing-the-correct-root_path).|
| API_URL | yes | The root API URL of immich, e.g. https://immich.mydomain.com/api/ |
| API_KEY | yes | The Immich API Key to use
| CRON_EXPRESSION | yes | A [crontab-style expression](https://crontab.guru/) (e.g. "0 * ** *") to perform album creation on a schedule (e.g. every hour). |
| ALBUM_LEVELS | no | Number of sub-folders or range of sub-folder levels below the root path used for album name creation. Positive numbers start from top of the folder structure, negative numbers from the bottom. Cannot be 0. If a range should be set, the start level and end level must be separated by a comma. <br>Refer to [How it works](#how-it-works) for a detailed explanation and examples. |
| ALBUM_SEPARATOR | no | Separator string to use for compound album names created from nested folders. Only effective if -a is set to a value > 1 (default: " ") |
| INSECURE | no | Set to `true` to disable SSL verification for the Immich API server, useful for self-signed certificates (default: `false`), allowed values: `true`, `false` |
| MODE | no | Mode for the script to run with. <br>__CREATE__ = Create albums based on folder names and provided arguments<br>__CLEANUP__ = Create album nmaes based on current images and script arguments, but delete albums if they exist <br>__DELETE_ALL__ = Delete all albums. <br> If the mode is anything but CREATE, `--unattended` does not have any effect. <br> (default: CREATE). <br>Refer to [Cleaning Up Albums](#cleaning-up-albums). |
| DELETE_CONFIRM | no | Confirm deletion of albums when running in mode CLEANUP or DELETE_ALL. If this flag is not set, these modes will perform a dry run only. Has no effect in mode CREATE (default: False). <br>Refer to [Cleaning Up Albums](#cleaning-up-albums).|
To set up the container to periodically run the script, give it a name, pass the TZ variable and a valid crontab expression as environment variable. This example runs the script every hour:
If your external library uses multiple import paths or you have set up multiple external libraries, you can pass multiple paths in `ROOT_PATH` by setting it to a comma separated list of paths:
The root path `/path/to/external/lib/` is the path you have mounted your external library into the Immich container.
If you are following [Immich's External library Documentation](https://immich.app/docs/guides/external-library), you are using an environment variable called `${EXTERNAL_PATH}` which is mounted to `/usr/src/app/external` in the Immich container. Your `root_path` to pass to the script is `/usr/src/app/external`.
The script utilizies [Immich's REST API](https://immich.app/docs/api/) to query all images indexed by Immich, extract the folder for all images that are in the top level of any provided `root_path`, then creates albums with the names of these folders (if not yet exists) and adds the images to the correct albums.
-`root_path` is the base path where images are looked for. Multiple root paths can be specified by adding the `-r` argument as many times as necessary. Only images within that base path will be considered for album creation.
It is possible to specify not just a nunmber for `album-levels`, but a range from level x to level y in the folder structure that should make up an album's name:
`--album-levels="2,3"`
The range is applied to the folder structure beneath `root_path` from the top for positive levels and from the bottom for negative levels.
Suppose the following folder structure for an external library with the script's `root_path` set to `/external_libs/photos`:
```
/external_libs/photos/2020/2020 02 Feb/Vacation
/external_libs/photos/2020/2020 08 Aug/Vacation
```
-`--album-levels="2,3"` will create albums (for this folder structure, this is equal to `--album-levels="-2"`)
-`2020 02 Feb Facation`
-`2020 08 Aug Vacation`
-`--album-levels="2,2"` will create albums (for this folder structure, this is equal to `--album-levels="-2,-2"`)
-`2020 02 Feb`
-`2020 08 Aug`
⚠️ Note that with negative `album-levels` or album level ranges, images from different parent folders will be mixed in the same album if they reside in sub-folders with the same name (see `Vacation` in example above).
The script supports differnt run modes (option `-m`/`--mode` or env variable `MODE` for Docker). The default mode is `CREATE`, which is used to create albums.
The other two modes are `CLEANUP` and `DELETE_ALL`:
-`CLEANUP`: The script will generate album names using the script's arguments and the assets found in Immich, but instead of creating the albums, it will delete them (if they exist). This is useful if a large number of albums was created with no/the wrong `--album-separator` or `--album-levels` settings.
-`DELETE_ALL`: ⚠️ As the name suggests, this mode blindly deletes ALL albums from Immich. Use with caution!
To prevent accidental deletions, setting the mode to `CLEANUP` or `DELETE_ALL` alone will not actually delete any albums, but only perform a dry run. The dry run prints a list of albums that the script __would__ delete.
To actually delete albums, the option `-d/--delete-confirm` (or env variable `DELETE_CONFIRM` for Docker) must be set.
__WARNING ⚠️__
Deleting albums cannot be undone! The only option is to let the script run again and create new albums base on the passed arguments and current assets in Immich.
