Sha256: d8af84cc59c880165393396734a1dfb97d25f2d23153e0f3cebf2dcf36ca72d6
Contents?: true
Size: 950 Bytes
Versions: 21
Compression:
Stored size: 950 Bytes
Contents
require 'zlib'
#
# A mutation of "open" that lets you read/write gzip files, as well as
# regular files.
#
# (NOTE: gzip detection is purely based on the filename.)
#
# It accepts a block just like open()!
#
# Example:
# zopen("test.txt") #=> #<File:test.txt>
# zopen("test.txt.gz") #=> #<Zlib::GzipReader:0xb6c79424>
# zopen("otherfile.gz", "w") #=> #<Zlib::GzipWriter:0x7fe30448>>
# zopen("test.txt.gz") { |f| f.read } # reads the contents of the .gz file, then closes the file automatically.
#
def zopen(filename, mode="r")
file = open(filename, mode)
if filename =~ /\.gz$/
case mode
when "r", "rb"
file = Zlib::GzipReader.new(file)
when "w", "wb"
file = Zlib::GzipWriter.new(file)
else
raise "Unknown mode: #{mode.inspect}. zopen only supports 'r' and 'w'."
end
end
if block_given?
result = yield(file)
file.close
result
else
file
end
end
Version data entries
21 entries across 21 versions & 1 rubygems