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require "securerandom" # for uuid generation
require "fileutils"
module Stud
module Temporary
DEFAULT_PREFIX = "studtmp"
# Returns a string for a randomly-generated temporary path.
#
# This does not create any files.
def pathname(prefix=DEFAULT_PREFIX)
root = ENV["TMP"] || ENV["TMPDIR"] || ENV["TEMP"] || "/tmp"
return File.join(root, "#{prefix}-#{SecureRandom.hex(30)}")
end
# Return a File handle to a randomly-generated path.
#
# Any arguments beyond the first (prefix) argument will be
# given to File.new.
#
# If no file args are given, the default file mode is "w+"
def file(prefix=DEFAULT_PREFIX, *args, &block)
args << "w+" if args.empty?
file = File.new(pathname(prefix), *args)
if block_given?
begin
block.call(file)
ensure
file.close unless file.closed?
File.unlink(file.path)
end
else
return file
end
end
# Make a temporary directory.
#
# If given a block, the directory path is given to the block. WHen the
# block finishes, the directory and all its contents will be deleted.
#
# If no block given, it will return the path to a newly created directory.
# You are responsible for then cleaning up.
def directory(prefix=DEFAULT_PREFIX, &block)
path = pathname(prefix)
Dir.mkdir(path)
if block_given?
begin
block.call(path)
ensure
FileUtils.rm_r(path)
end
else
return path
end
end
extend self
end # module Temporary
end # module Stud
Version data entries
71 entries across 67 versions & 18 rubygems