80 lines
1.7 KiB
V
80 lines
1.7 KiB
V
module vfs_db
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import incubaid.herolib.data.encoder
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import incubaid.herolib.vfs
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// encode_metadata encodes the common metadata structure
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fn encode_metadata(mut e encoder.Encoder, m vfs.Metadata) {
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e.add_u32(m.id)
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e.add_string(m.name)
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e.add_u8(u8(m.file_type)) // FileType enum as u8
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e.add_u64(m.size)
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e.add_i64(m.created_at)
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e.add_i64(m.modified_at)
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e.add_i64(m.accessed_at)
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e.add_u32(m.mode)
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e.add_string(m.owner)
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e.add_string(m.group)
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}
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// encode encodes a Directory to binary format
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pub fn (dir Directory) encode() []u8 {
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mut e := encoder.new()
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e.add_u8(1) // version byte
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e.add_u8(u8(vfs.FileType.directory)) // type byte
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// Encode metadata
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encode_metadata(mut e, dir.metadata)
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// Encode parent_id
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e.add_u32(dir.parent_id)
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// Encode children IDs
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e.add_u16(u16(dir.children.len))
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for child_id in dir.children {
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e.add_u32(child_id)
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}
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return e.data
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}
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// File encoding/decoding
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// encode encodes a File metadata to binary format (without the actual file data)
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pub fn (f File) encode() []u8 {
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mut e := encoder.new()
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e.add_u8(1) // version byte
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e.add_u8(u8(vfs.FileType.file)) // type byte
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// Encode metadata
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encode_metadata(mut e, f.metadata)
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// Encode parent_id
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e.add_u32(f.parent_id)
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// Encode blocksize and block ids
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// if file has no data, it also should have zero block size
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e.add_u16(u16(f.chunk_ids.len))
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for id in f.chunk_ids {
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e.add_u32(id)
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}
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return e.data
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}
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// encode encodes a Symlink to binary format
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pub fn (sl Symlink) encode() []u8 {
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mut e := encoder.new()
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e.add_u8(1) // version byte
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e.add_u8(u8(vfs.FileType.symlink)) // type byte
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// Encode metadata
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encode_metadata(mut e, sl.metadata)
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// Encode parent_id
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e.add_u32(sl.parent_id)
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// Encode target path
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e.add_string(sl.target)
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return e.data
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}
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