feat: extract EPUB series metadata for OPDS feeds - #60
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Extract calibre:series and calibre:series_index from EPUB OPF <meta> tags and emit them as <dc:series> and <dc:seriesPosition> in acquisition feeds. Enables reading order views in OPDS clients that support series metadata. Changes: - Added Series and SeriesIndex fields to CatalogEntry - Extended extractEpubMetadata() to parse <meta> tags with namespace fallback - Extended Entry struct with DcSeries and DcSeriesPosition XML fields - Added Series() and SeriesPosition() builder methods - Updated makeFeed() to emit series metadata when ExtractMetadata is on - Updated extractMetadata() return signature to 6 values
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What: Extract
calibre:seriesandcalibre:series_indexfrom EPUB OPF metadata and emit as<dc:series>/<dc:seriesPosition>in acquisition feeds.Why: OPDS clients that support reading order (some versions of Moon+ Reader, custom clients) can group books by series and show them in correct order. Many publisher EPUBs and Calibre exports include this metadata.
Changes:
SeriesandSeriesIndexfields toCatalogEntryextractEpubMetadata()to parse<meta name="calibre:series"/>and<meta name="calibre:series_index"/>with namespace fallbackopds.Entrystruct withDcSeriesandDcSeriesPositionXML fieldsSeries()andSeriesPosition()builder methods toEntryBuildermakeFeed()emits series metadata whenExtractMetadatais enabledextractMetadata()return signature: 6 valuesVerification:
go test ./...)This is the second post-v1.10.0 recommendation from the improvement plan. After this merges, next up is EPUB subject/genre extraction.