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Add option to export minimal library information to a CSV file (mihon…
…app/mihon#1161) (cherry picked from commit fab8b17d99c44a08555b1f584c56d62a47737ca0)
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64 changes: 64 additions & 0 deletions
64
app/src/main/java/eu/kanade/tachiyomi/data/export/LibraryExporter.kt
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,64 @@ | ||
| package eu.kanade.tachiyomi.data.export | ||
|
|
||
| import android.content.Context | ||
| import android.net.Uri | ||
| import kotlinx.coroutines.Dispatchers | ||
| import kotlinx.coroutines.withContext | ||
| import tachiyomi.domain.manga.model.Manga | ||
|
|
||
| object LibraryExporter { | ||
|
|
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| data class ExportOptions( | ||
| val includeTitle: Boolean, | ||
| val includeAuthor: Boolean, | ||
| val includeArtist: Boolean, | ||
| ) | ||
|
|
||
| suspend fun exportToCsv( | ||
| context: Context, | ||
| uri: Uri, | ||
| favorites: List<Manga>, | ||
| options: ExportOptions, | ||
| onExportComplete: () -> Unit, | ||
| ) { | ||
| withContext(Dispatchers.IO) { | ||
| context.contentResolver.openOutputStream(uri)?.use { outputStream -> | ||
| val csvData = generateCsvData(favorites, options) | ||
| outputStream.write(csvData.toByteArray()) | ||
| } | ||
| onExportComplete() | ||
| } | ||
| } | ||
|
|
||
| private val escapeRequired = listOf("\r", "\n", "\"", ",") | ||
|
|
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| private fun generateCsvData(favorites: List<Manga>, options: ExportOptions): String { | ||
| val columnSize = listOf( | ||
| options.includeTitle, | ||
| options.includeAuthor, | ||
| options.includeArtist, | ||
| ) | ||
| .count { it } | ||
|
|
||
| val rows = buildList(favorites.size) { | ||
| favorites.forEach { manga -> | ||
| buildList(columnSize) { | ||
| if (options.includeTitle) add(manga.title) | ||
| if (options.includeAuthor) add(manga.author) | ||
| if (options.includeArtist) add(manga.artist) | ||
| } | ||
| .let(::add) | ||
| } | ||
| } | ||
| return rows.joinToString("\r\n") { columns -> | ||
| columns.joinToString(",") columns@{ column -> | ||
| if (column.isNullOrBlank()) return@columns "" | ||
| if (escapeRequired.any { column.contains(it) }) { | ||
| column.replace("\"", "\"\"").let { "\"$it\"" } | ||
| } else { | ||
| column | ||
| } | ||
| } | ||
| } | ||
| } | ||
| } |
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