Sha256: b7ac69d751e8cc9ae552c262ea88a641108213958e763cf25b07539bbc494df6
Contents?: true
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Versions: 32
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Contents
# Provides method that can be included on File-type objects (IO, StringIO, Tempfile, etc) to allow stream copying
# and Tempfile conversion.
module IOStream
# Returns a Tempfile containing the contents of the readable object.
def to_tempfile(object)
return object.to_tempfile if object.respond_to?(:to_tempfile)
name = object.respond_to?(:original_filename) ? object.original_filename : (object.respond_to?(:path) ? object.path : "stream")
tempfile = Paperclip::Tempfile.new(["stream", File.extname(name)])
tempfile.binmode
stream_to(object, tempfile)
end
# Copies one read-able object from one place to another in blocks, obviating the need to load
# the whole thing into memory. Defaults to 8k blocks. Returns a File if a String is passed
# in as the destination and returns the IO or Tempfile as passed in if one is sent as the destination.
def stream_to object, path_or_file, in_blocks_of = 8192
dstio = case path_or_file
when String then File.new(path_or_file, "wb+")
when IO then path_or_file
when Tempfile then path_or_file
end
buffer = ""
object.rewind
while object.read(in_blocks_of, buffer) do
dstio.write(buffer)
end
dstio.rewind
dstio
end
end
# Corrects a bug in Windows when asking for Tempfile size.
if defined? Tempfile
class Tempfile
def size
if @tmpfile
@tmpfile.fsync
@tmpfile.flush
@tmpfile.stat.size
else
0
end
end
end
end
Version data entries
32 entries across 32 versions & 13 rubygems