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# This implementation of io/console is a little hacky. It shells out to `stty`
# for most operations, which does not work on Windows, in secured environments,
# and so on. In addition, because on Java 6 we can't actually launch
# subprocesses with tty control, stty will not actually manipulate the
# controlling terminal.
#
# For platforms where shelling to stty does not work, most operations will
# just be pass-throughs. This allows them to function, but does not actually
# change any tty flags.
#
# Finally, since we're using stty to shell out, we can only manipulate stdin/
# stdout tty rather than manipulating whatever terminal is actually associated
# with the IO we're calling against. This will produce surprising results if
# anyone is actually using io/console against non-stdio ttys...but that case
# seems like it would be pretty rare.
#
# Note: we are incorporating this into 1.7.0 since RubyGems uses io/console
# when pushing gems, in order to mask the password entry. Worst case is that
# we don't actually disable echo and the password is shown...we will try to
# do a better version of this in 1.7.1.
require 'rbconfig'
require 'io/console/common'
# If Windows, always use the stub version
if RbConfig::CONFIG['host_os'] =~ /(mswin)|(win32)|(ming)/
require 'io/console/stub_console'
else
# If Linux or BSD, try to load the native version
if RbConfig::CONFIG['host_os'].downcase =~ /darwin|openbsd|freebsd|netbsd|linux/
begin
# Attempt to load the native Linux and BSD console logic
require 'io/console/native_console'
ready = true
rescue Exception => ex
warn "failed to load native console support: #{ex}" if $VERBOSE
ready = false
end
end
# Native failed, try to use stty
if !ready
begin
require 'io/console/stty_console'
ready = true
rescue Exception
warn "failed to load stty console support: #{ex}" if $VERBOSE
ready = false
end
end
# If still not ready, just use stubbed version
if !ready
require 'io/console/stub_console'
end
end
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