Sha256: ae0ae4c773f48087ac7908f9c137bf86ef713e619620a5ecab11a0cf15c6e549
Contents?: true
Size: 912 Bytes
Versions: 16
Compression:
Stored size: 912 Bytes
Contents
require 'tempfile'
module Kernel
# From: 'activesupport-4.1.0/lib/active_support/core_ext/kernel/reporting.rb
#
# Captures the given stream and returns it:
#
# stream = capture(:stdout) { puts 'notice' }
# stream # => "notice\n"
#
# stream = capture(:stderr) { warn 'error' }
# stream # => "error\n"
#
# even for subprocesses:
#
# stream = capture(:stdout) { system('echo notice') }
# stream # => "notice\n"
#
# stream = capture(:stderr) { system('echo error 1>&2') }
# stream # => "error\n"
def capture(stream)
stream = stream.to_s
captured_stream = Tempfile.new(stream)
stream_io = eval("$#{stream}")
origin_stream = stream_io.dup
stream_io.reopen(captured_stream)
yield
stream_io.rewind
return captured_stream.read
ensure
captured_stream.close
captured_stream.unlink
stream_io.reopen(origin_stream)
end
end
Version data entries
16 entries across 16 versions & 2 rubygems