问题
Is there a way to detect the operating system in ruby? I am working on developing a sketchup tool that will need to detect Mac vs. Windows.
回答1:
You can use the os
gem:
gem install os
And then
require 'os'
OS.linux? #=> true or false
OS.windows? #=> true or false
OS.java? #=> true or false
OS.bsd? #=> true or false
OS.mac? #=> true or false
# and so on.
See: https://github.com/rdp/os
回答2:
Here is the best one I have seen recently. It is from selenium. The reason I think it is the best is it uses rbconfig host_os field which has the advantage of working on MRI and JRuby. RUBY_PLATFORM will say 'java' on JRuby regardless of host os it is running on. You will need to mildly tweak this method:
require 'rbconfig'
def os
@os ||= (
host_os = RbConfig::CONFIG['host_os']
case host_os
when /mswin|msys|mingw|cygwin|bccwin|wince|emc/
:windows
when /darwin|mac os/
:macosx
when /linux/
:linux
when /solaris|bsd/
:unix
else
raise Error::WebDriverError, "unknown os: #{host_os.inspect}"
end
)
end
回答3:
You can use
puts RUBY_PLATFORM
irb(main):001:0> RUBY_PLATFORM
=> "i686-linux"
But @Pete is right.
回答4:
You can inspect the RUBY_PLATFORM constant, but this is known to be unreliable in certain cases, such as when running JRuby. Other options include capturing the output of the uname -a
command on POSIX systems, or using a detection gem such as sys-uname.
来源:https://stackoverflow.com/questions/11784109/detecting-operating-systems-in-ruby