Sha256: 2e197f926a9e941543ccc4e32ceab695dd0aa6b2f4fffd425fc7b2ef1b8d5d31
Contents?: true
Size: 938 Bytes
Versions: 17
Compression:
Stored size: 938 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"
file = Zlib::GzipReader.new(file)
when "w"
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
17 entries across 17 versions & 1 rubygems