Komga and Kavita Metadata Fetcher

Overview

Komga and Kavita Metadata Fetcher is a tool that fetches metadata and thumbnails for your digital comic book library. It can automatically pick up added series and update their metadata and thumbnail. You can also manually search and identify series, or match the entire library or a series. Additionally, you can install the Komf userscript to add Komf integration directly to Komga and Kavita UI, allowing you to launch manual or automatic metadata identification.

Features

automatically pick up added series and update their metadata and thumbnail
manually search and identify series (http endpoints or cli commands)
match entire library or a series (http endpoints or cli commands)

Building

To build the application, follow these steps:

Run ./gradlew clean shadowjar.
The output will be in /build/libs.

Running

To run the application, you can either use the JAR file or Docker Compose.

Running with JAR

To run the application using the JAR file, follow these steps:

Ensure you have Java 17 or higher installed on your system.
Run java -jar komf-1.0-SNAPSHOT-all.jar <path to config>.

Running with Docker Compose

To run the application using Docker Compose, use the following YAML configuration:

version: "3.7"
services:
  komf:
    image: sndxr/komf:latest
    container_name: komf
    ports:
      - "8085:8085"
    user: "1000:1000"
    environment:
      - KOMF_KOMGA_BASE_URI=http://komga:25600
      - KOMF_KOMGA_USER=admin@example.org
      - KOMF_KOMGA_PASSWORD=admin
      - KOMF_KAVITA_BASE_URI=http://kavita:5000
      - KOMF_KAVITA_API_KEY=16707507-d05d-4696-b126-c3976ae14ffb
      - KOMF_LOG_LEVEL=INFO
      - TZ=UTC # set the same timezone as your Kavita instance if you want Kavita event listener to work properly
      # optional jvm options. Example config for low memory usage. Runs guaranteed cleanup up every 3600000ms(1hour)
      - JAVA_TOOL_OPTIONS=-XX:+UnlockExperimentalVMOptions -XX:+UseShenandoahGC -XX:ShenandoahGCHeuristics=compact -XX:ShenandoahGuaranteedGCInterval=3600000 -XX:TrimNativeHeapInterval=3600000
    volumes:
      - /path/to/config:/config #path to directory with application.yml and database file
    restart: unless-stopped

Running with Docker Create

docker create \
  --name komf \
  -p 8085:8085 \
  -u 1000:1000 \
  -e KOMF_KOMGA_BASE_URI=http://komga:25600 \
  -e KOMF_KOMGA_USER=admin@example.org \
  -e KOMF_KOMGA_PASSWORD=admin \
  -e KOMF_KAVITA_BASE_URI=http://kavita:5000 \
  -e KOMF_KAVITA_API_KEY=16707507-d05d-4696-b126-c3976ae14ffb \
  -e KOMF_LOG_LEVEL=INFO \
  -v /path/to/config:/config \
  --restart unless-stopped \
  sndxr/komf:latest

if you don't already have a komga or kavita network you'll need to network create a new one
- docker network create my_network
attach komf and media server to new network:
- docker network connect my_network komga_or_kavita
- docker network connect my_network komf
start the container docker start komf

Example `application.yml` Config

Important

Update modes is the way komf will update metadata.
If you're using anything other than API then your existing files might be modified with embedded metadata
Can use multiple options at once. available options are API, COMIC_INFO
Experimental OPF mode is available for epub books. This mode is using calibre system install to update metadate

komga:
  baseUri: http://localhost:25600 #or env:KOMF_KOMGA_BASE_URI
  komgaUser: admin@example.org #or env:KOMF_KOMGA_USER
  komgaPassword: admin #or env:KOMF_KOMGA_PASSWORD
  eventListener:
    enabled: false # if disabled will not connect to komga and won't pick up newly added entries
    libraries: [ ]  # listen to all events if empty
  notifications:
    libraries: [ ]  # Will send notifications if any notification source is enabled. If empty will send notifications for all libraries
  metadataUpdate:
    default:
      libraryType: "MANGA" # Can be "MANGA", "NOVEL" or "COMIC". Hint to help better match book numbers
      updateModes: [ API ] # can use multiple options at once. available options are API, COMIC_INFO
      aggregate: false # if enabled will search and aggregate metadata from all configured providers
      mergeTags: false # if true and aggregate is enabled will merge tags from all providers
      mergeGenres: false # if true and aggregate is enabled will merge genres from all providers
      bookCovers: false # update book thumbnails
      seriesCovers: false # update series thumbnails
      overrideExistingCovers: true # if false will upload but not select new cover if another cover already exists
      postProcessing:
        seriesTitle: false # update series title
        seriesTitleLanguage: "en" # series title update language. If empty chose first matching title
        alternativeSeriesTitles: false # use other title types as alternative title option
        alternativeSeriesTitleLanguages: # alternative title languages
          - "en"
          - "ja"
          - "ja-ro"
        orderBooks: false # will order books using parsed volume or chapter number
        scoreTag: false # adds score tag of format "score: 8" only uses integer part of rating. Can be used in search using query: tag:"score: 8" in komga
        readingDirectionValue: # override reading direction for all series. should be one of these: LEFT_TO_RIGHT, RIGHT_TO_LEFT, VERTICAL, WEBTOON
        languageValue: # set default language for series. Must use BCP 47 format e.g. "en"

kavita:
  baseUri: "http://localhost:5000" #or env:KOMF_KAVITA_BASE_URI
  apiKey: "16707507-d05d-4696-b126-c3976ae14ffb" #or env:KOMF_KAVITA_API_KEY
  eventListener:
    enabled: false # if disabled will not connect to kavita and won't pick up newly added entries
    libraries: [ ]  # listen to all events if empty
  notifications:
    libraries: [ ]  # Will send notifications if any notification source is enabled. If empty will send notifications for all libraries
  metadataUpdate:
    default:
      libraryType: "MANGA" # Can be "MANGA", "NOVEL" or "COMIC". Hint to help better match book numbers
      updateModes: [ API ] # can use multiple options at once. available options are API, COMIC_INFO
      aggregate: false # if enabled will search and aggregate metadata from all configured providers
      mergeTags: false # if true and aggregate is enabled will merge tags from all providers
      mergeGenres: false # if true and aggregate is enabled will merge genres from all providers
      bookCovers: false #update book thumbnails
      seriesCovers: false #update series thumbnails
      postProcessing:
        seriesTitle: false #update series title
        seriesTitleLanguage: "en" # series title update language. If empty chose first matching title
        alternativeSeriesTitles: false # use other title types as alternative title option
        alternativeSeriesTitleLanguages: # alternative title language. Only first language is used. Use single value for consistency
          - "ja-ro"
        orderBooks: false # will order books using parsed volume or chapter number. works only with COMIC_INFO
        languageValue: # set default language for series. Must use BCP 47 format e.g. "en"

discord:
  # List of discord webhook urls. Will call these webhooks after series or books were added. 
  webhooks: # config example: webhooks: ["https://discord.com/api/webhooks/9..."] (env:KOMF_DISCORD_WEBHOOKS - comma separated list of webhooks)
  descriptionTemplate: "discordWebhook.vm" # description template filename
  seriesCover: false # include series cover in message. Requires imgurClientId
  templatesDirectory: "./" # path to a directory with templates

database:
  file: ./database.sqlite # database file location.

metadataProviders:
  malClientId: "" # required for mal provider. See https://myanimelist.net/forum/?topicid=1973077 env:KOMF_METADATA_PROVIDERS_MAL_CLIENT_ID
  comicVineApiKey: # required for comicVine provider https://comicvine.gamespot.com/api/ env:KOMF_METADATA_PROVIDERS_COMIC_VINE_API_KEY
  defaultProviders:
    mangaUpdates:
      priority: 10
      enabled: true
      mediaType: "MANGA" # filter used in matching. Can be NOVEL or MANGA. MANGA type includes everything except novels
      authorRoles: [ "WRITER" ] # roles that will be mapped to author role
      artistRoles: [ "PENCILLER","INKER","COLORIST","LETTERER","COVER" ] # roles that will be mapped to artist role
    mal:
      priority: 20
      enabled: false
      mediaType: "MANGA" # filter used in matching. Can be NOVEL or MANGA. MANGA type includes everything except novels
    nautiljon:
      priority: 30
      enabled: false
    aniList:
      priority: 40
      enabled: false
      mediaType: "MANGA" # filter used in matching. Can be NOVEL or MANGA. MANGA type includes everything except novels
      tagsScoreThreshold: 60 # tags with this score or higher will be included
      tagsSizeLimit: 15 # amount of tags that will be included
    yenPress:
      priority: 50
      enabled: false
      mediaType: "MANGA" # filter used in matching. Can be NOVEL or MANGA.
    kodansha:
      priority: 60
      enabled: false
    viz:
      priority: 70
      enabled: false
    bookWalker:
      priority: 80
      enabled: false
      mediaType: "MANGA" # filter used in matching. Can be NOVEL or MANGA.
    mangaDex:
      priority: 90
      enabled: false
    bangumi: # Chinese metadata provider. https://bgm.tv/
      priority: 100
      enabled: false
    comicVine: # https://comicvine.gamespot.com/ requires API key. Experimental provider, can mismatch issue numbers
      priority: 110
      enabled: false

server:
  port: 8085 # or env:KOMF_SERVER_PORT

logLevel: INFO # or env:KOMF_LOG_LEVEL

Metadata update config for a library

You can configure a set of metadata update options that will only be used with specified library. If no options are specified for a library then default options will be used. kavita or komga library ids are used as library identifiers

komga_or_kavita:
  metadataUpdate:
    default:
      aggregate: false
    library:
      09PERX1TW8GEK:
        updateModes: [ API ]
        aggregate: false
        bookCovers: false
        seriesCovers: false
        postProcessing:
          seriesTitle: false
          titleType: LOCALIZED
          alternativeSeriesTitles: false
          languageValue:
      123:
        aggregate: true
        seriesCovers: true

Providers config for a library

You can configure a set of metadata providers that will only be used with specified library. If no providers are specified for a library then default providers will be used. kavita or komga library ids are used as library identifiers

metadataProviders:
  defaultProviders:
    mangaUpdates:
      priority: 10
      enabled: true
  libraryProviders:
    09PERX1TW8GEK:
      mangaUpdates:
        priority: 10
        enabled: true
      bookWalker:
        priority: 20
        enabled: true
    123:
      aniList:
        priority: 10
        enabled: true
      mal:
        priority: 20
        enabled: true

Metadata aggregation

By default, all metadata will be fetched from the first positive match in configured providers by order of priority. If you want to enable metadata aggregation from multiple sources you need to set aggregateMetadata to true in the config.

If enabled, initial metadata will be taken from the first positive match in configured providers. Additional search request will be made to all the other configured providers and metadata will be aggregated from the results. Metadata fields will only be set from another provider if previous provider did not have any data for that particular field. For example provider1 did not return thumbnail in that case thumbnail will be taken from provider2

You can configure which fields each provider will have in the config both for series and books. By default, all available fields will be fetched. Example of default fields configuration

metadataProviders:
  default:
    mangaUpdates:
      priority: 10
      enabled: true
      authorRoles: [ "WRITER" ]
      artistRoles: [ "PENCILLER","INKER","COLORIST","LETTERER","COVER" ]
      seriesMetadata:
        status: true
        title: true
        titleSort: true
        summary: true
        publisher: true
        readingDirection: true
        ageRating: true
        language: true
        genres: true
        tags: true
        totalBookCount: true
        authors: true
        thumbnail: true
        releaseDate: true
        links: true
        score: true
        books: true
        useOriginalPublisher: true # prefer original publisher and volume information if source has data about multiple providers. If false will use english or other available publisher
        #TagName: if specified and if provider has data about publisher in that language then additional tag will be added using format ({TagName}: publisherName)
        #e.g. originalPublisherTagName: "Original Publisher" will add tag "Original Publisher: Shueisha"
        originalPublisherTagName:
        englishPublisherTagName:
        frenchPublisherTagName:
      bookMetadata:
        title: true
        summary: true
        number: true
        numberSort: true
        releaseDate: true
        authors: true
        tags: true
        isbn: true
        links: true
        thumbnail: true

If you want to disable particular field you just need to set the field value to false

metadataProviders:
  default:
    mangaUpdates:
      priority: 10
      enabled: true
      seriesMetadata:
        thumbnail: false

Discord notifications

if any webhook urls are specified then after new book is added a call to webhooks will be triggered. You can change message format by providing your own template files and specifying directory path in templatesDirectory under discord configuration. For docker deployments templates should be placed in mounted /config directory without specifying templatesDirectory

# Example config
discord:
  title: # title string template
  titleUrl: # title url string template
  descriptionTemplate: "discordWebhook.vm" # description template filename
  # list of field blocks.
  #fieldTemplates:
  #  - name: "field name" # string template
  #    templateName: "field1.vm" # template filename
  #    inline: true # if true sets multiple field blocks to the same row
  fieldTemplates:
  footerTemplate: # footer template filename
  seriesCover: false # include series cover in message
  colorCode: "1F8B4C" # hex color code for message sidebar

  webhooks: #list of discord webhook urls. Will call these webhooks after series or books were added
  templatesDirectory: "./" # path to a directory with templates

Templates are written using Apache Velocity (link to docs).

## Example of the default description template
**$series.name**

#if ($series.metadata.summary != "")
    $series.metadata.summary

#end
#if($books.size() == 1)
***new book was added to library $library.name:***
#else
***new books were added to library $library.name:***
#end
#foreach ($book in $books)
**$book.name**
#end

// Variables available in templates:
interface Webhook {
    library: {
        id: string,
        name: string
    },
    series: {
        id: string,
        name: string,
        bookCount: number,
        metadata: {
            status: string,
            title: string,
            titleSort: string,
            alternativeTitles: { label: string, title: string }[],
            summary: string,
            readingDirection?: string,
            publisher?: string,
            alternativePublishers: string[],
            ageRating?: number,
            language?: string,
            genres: string[],
            tags: string[],
            totalBookCount?: number,
            authors: { name: string, role: string }[],
            releaseYear: number,
            liks: { label: string, url: string }[],
        }
    },
    books: {
        id: string,
        name: string,
        number: int,
        metadata: {
            title: string,
            summary: string,
            number: string,
            releaseDate: string,
            authors: { name: string, role: string }
            tags: string[],
            isbn?: string,
            links: { label: string, url: string }[]
        }
    }[],
    mediaServer: string //can be `KOMGA` or `KAVITA`
}

Command line options

You can run komf as a daemon server or as a cli tool for one-off operation

java -jar komf.jar [OPTIONS]

Options

Use the following options when running Komf:

--config-dir: config directory that will be used for all external files including config file. Config file must be named application.yml. This option overrides all other config path options.
--config-file: path to config file.
--verbose: flag to enable debug messages.
--media-server: media server on which to execute subcommands. Available values are komga or kavita. Defaults to komga if not provided. Ignored in server mode.

Commands

Use the following subcommands to perform operations:

komf series search NAME: searches series in Komga by specified name.
komf series update ID: launches metadata auto identification for provided series ID.
komf series identify ID: manual identification that allows you to choose from the list of metadata provider search results.
komf series reset ID: resets all metadata for provided series ID.
komf library update ID: launches metadata auto identification for provided library ID.
komf library reset ID: resets all metadata for provided library ID.

HTTP Endpoints

Use Komga or Kavita in place of {media-server}.

Providers

Use the following HTTP endpoints to get information about enabled metadata providers:

GET /{media-server}/providers: list of enabled metadata providers. Optional libraryId parameter can be used for library providers.

Search

Use the following HTTP endpoint to search for metadata:

GET /{media-server}/search?name=...: search results from enabled metadata providers. Optional libraryId parameter can be used for library providers.

Identify

Use the following HTTP endpoint to set series metadata from specified provider:

POST /{media-server}/identify:

{
  "libraryId": "09TDSWK3Q0XRA",
  "seriesId": "07XF6HKAWHHV4",
  "provider": "MANGA_UPDATES",
  "providerSeriesId": "1"
}

POST /{media-server}/match/library/{libraryId}/series/{seriesId}: Attempts to match the specified series in the specified library.
POST /{media-server}/match/library/{libraryId}: Attempts to match all series in the specified library.
POST /{media-server}/reset/library/{libraryId}/series/{seriesId}: Resets all metadata for the specified series in the specified library.
POST /{media-server}/reset/library/{libraryId}: Resets all metadata for all series in the specified library.

Name		Name	Last commit message	Last commit date
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.idea/codeStyles		.idea/codeStyles
gradle/wrapper		gradle/wrapper
src		src
.gitignore		.gitignore
Dockerfile		Dockerfile
LICENSE		LICENSE
README.md		README.md
build.gradle.kts		build.gradle.kts
gradle.properties		gradle.properties
gradlew		gradlew
gradlew.bat		gradlew.bat
settings.gradle.kts		settings.gradle.kts

License

Snd-R/komf

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