Store file instance metadata

[m4tx]

For each file path store e.g. whether it was approved by a mod as well as the hash of the content (to retrieve the rest of the attributes).

[rafalk342]

I don't know the exact story here but there are already entities

mordor/src/main/kotlin/pl/edu/uj/ii/ksi/mordor/persistence/entities/FileEntry.kt

Lines 9 to 15 in a11d629

	data class FileEntry(
	@Id
	var path: String,
	@ManyToOne(fetch = FetchType.EAGER, optional = false)
	var metadata: FileMetadata
	)

and

mordor/src/main/kotlin/pl/edu/uj/ii/ksi/mordor/persistence/entities/FileMetadata.kt

Lines 14 to 38 in a11d629

	data class FileMetadata(
	@Id
	@GeneratedValue(strategy = GenerationType.AUTO)
	var id: Long? = null,
	@Column(unique = true, nullable = false)
	var fileHash: String?,
	var title: String?,
	var author: String?,
	var description: String?,
	var mimeType: String?,
	@OneToOne(mappedBy = "file", orphanRemoval = true, cascade = [CascadeType.REMOVE], fetch = FetchType.LAZY)
	var thumbnail: FileThumbnail?,
	@OneToOne(mappedBy = "file", orphanRemoval = true, cascade = [CascadeType.REMOVE], fetch = FetchType.LAZY)
	var crawledContent: FileContent?,
	@OneToMany(mappedBy = "metadata", orphanRemoval = true)
	var files: List<FileEntry>?
	)

Those entities are never used in the code but are already defined. It seems that we lack mod approval field.

How the crawler should work?