class

BakedFileSystem::BakedFile

BakedFile represents a virtual file in a BakedFileSystem.

Usage

file = MyFileSystem.get("hello-world.txt")
file.path        # => "hello-world.txt"
file.size        # => 12
file.gets_to_end # => "Hello World\n"
file.compressed? # => false

Constructors

new(path : String, size : Int32, compressed : Bool, slice : Bytes)

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Instance methods

compressed?

Returns whether this file is compressed. If not, it is decompressed on read.

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compressed_size

Returns the compressed size of this virtual file.

See #size for the real size of the (uncompressed) file.

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path

Returns the path in the virtual file system.

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read(slice : Bytes)

Reads at most slice.size bytes from this IO into slice. Returns the number of bytes read, which is 0 if and only if there is no more data to read (so checking for 0 is the way to detect end of file).

io = IO::Memory.new "hello"
slice = Bytes.new(4)
io.read(slice) # => 4
slice          # => Bytes[104, 101, 108, 108]
io.read(slice) # => 1
slice          # => Bytes[111, 101, 108, 108]
io.read(slice) # => 0

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read

Return the data for this file as a String.

DEPRECATED: BakedFile can be used as an IO directly. Use gets_to_end instead

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rewind

Rewinds this IO. By default this method raises, but including types may implement it.

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size

Returns the size of this virtual file.

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to_encoded(compressed = true)

Return the data for this file as a URL-safe Base64-encoded String.

DEPRECATED: BakedFile can be used as an IO directly.

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to_slice(compressed)

Return the file's data as a Slice(UInt8)

DEPRECATED: BakedFile can be used as an IO directly.

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to_slice

Returns a Bytes holding the (compressed) content of this virtual file. This data needs to be extracted using a Compress::Gzip::Reader unless #compressed? is true.

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write(slice : Bytes) : Nil

Writes the contents of slice into this IO.

io = IO::Memory.new
slice = Bytes.new(4) { |i| ('a'.ord + i).to_u8 }
io.write(slice)
io.to_s # => "abcd"

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write_to_io(io, compressed = true)

Write the file's data to the given IO, minimizing any memory copies or unnecessary conversions.

DEPRECATED: BakedFile can be used as an IO directly.

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