class BakedFileSystem::BakedFile

Overview

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

Defined in:

baked_file_system.cr

Constructors

Instance Method Summary

Constructor Detail

def self.new(path : String, size : Int32, compressed : Bool, slice : Bytes) #

[View source]

Instance Method Detail

def compressed? : Bool #

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


[View source]
def compressed_size #

Returns the compressed size of this virtual file.

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


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def path : String #

Returns the path in the virtual file system.


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def read(slice : Bytes) #
Description copied from class IO

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

[View source]
def read #

Return the data for this file as a String.

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


[View source]
def rewind #
Description copied from class IO

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


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def size : Int32 #

Returns the size of this virtual file.


[View source]
def 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.


[View source]
def to_slice(compressed) #

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

DEPRECATED BakedFile can be used as an IO directly.


[View source]
def to_slice : Bytes #

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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def write(slice : Bytes) : Nil #
Description copied from class IO

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"

[View source]
def 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.


[View source]