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The Ruby Programming Language [mirror]

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README.md

What's Ruby

Ruby is the interpreted scripting language for quick and easy object-oriented programming. It has many features to process text files and to do system management tasks (as in Perl). It is simple, straight-forward, and extensible.

Features of Ruby

Simple Syntax
Normal Object-oriented Features (e.g. class, method calls)
Advanced Object-oriented Features (e.g. mix-in, singleton-method)
Operator Overloading
Exception Handling
Iterators and Closures
Garbage Collection
Dynamic Loading of Object Files (on some architectures)
Highly Portable (works on many Unix-like/POSIX compatible platforms as well as Windows, macOS, Haiku, etc.) cf. https://github.com/ruby/ruby/blob/trunk/doc/contributing.rdoc#platform-maintainers

How to get Ruby

For a complete list of ways to install Ruby, including using third-party tools like rvm, see:

https://www.ruby-lang.org/en/downloads/

The trunk of the Ruby source tree can be checked out with the following command:

$ svn co https://svn.ruby-lang.org/repos/ruby/trunk/ ruby

Or if you are using git then use the following command:

$ git clone https://github.com/ruby/ruby.git

There are some other branches under development. Try the following command to see the list of branches:

$ svn ls https://svn.ruby-lang.org/repos/ruby/branches/

Or if you are using git then use the following command:

$ git ls-remote https://github.com/ruby/ruby.git

Ruby home page

The URL of the Ruby home page is:

https://www.ruby-lang.org/

Mailing list

There is a mailing list to talk about Ruby. To subscribe to this list, please send the following phrase:

subscribe

in the mail body (not subject) to the address ruby-talk-request@ruby-lang.org.

How to compile and install

This is what you need to do to compile and install Ruby:

If you want to use Microsoft Visual C++ to compile Ruby, read win32/README.win32 instead of this document.
If ./configure does not exist or is older than configure.ac, run autoconf to (re)generate configure.
Run ./configure, which will generate config.h and Makefile.

Some C compiler flags may be added by default depending on your environment. Specify optflags=.. and warnflags=.. as necessary to override them.
Edit defines.h if you need. Usually this step will not be needed.
Remove comment mark(#) before the module names from ext/Setup (or add module names if not present), if you want to link modules statically.

If you don't want to compile non static extension modules (probably on architectures which do not allow dynamic loading), remove comment mark from the line "#option nodynamic" in ext/Setup.

Usually this step will not be needed.
Run make.
- On Mac, set RUBY_CODESIGN environment variable with a signing identity. It uses the identity to sign ruby binary. See also codesign(1).
Optionally, run 'make check' to check whether the compiled Ruby interpreter works well. If you see the message "check succeeded", your Ruby works as it should (hopefully).
Optionally, run make update-gems and make extract-gems.

If you want to install bundled gems, run make update-gems and make extract-gems before running make install.
Run 'make install'.

This command will create the following directories and install files into them.
- ${DESTDIR}${prefix}/bin
- ${DESTDIR}${prefix}/include/ruby-${MAJOR}.${MINOR}.${TEENY}
- ${DESTDIR}${prefix}/include/ruby-${MAJOR}.${MINOR}.${TEENY}/${PLATFORM}
- ${DESTDIR}${prefix}/lib
- ${DESTDIR}${prefix}/lib/ruby
- ${DESTDIR}${prefix}/lib/ruby/${MAJOR}.${MINOR}.${TEENY}
- ${DESTDIR}${prefix}/lib/ruby/${MAJOR}.${MINOR}.${TEENY}/${PLATFORM}
- ${DESTDIR}${prefix}/lib/ruby/site_ruby
- ${DESTDIR}${prefix}/lib/ruby/site_ruby/${MAJOR}.${MINOR}.${TEENY}
- ${DESTDIR}${prefix}/lib/ruby/site_ruby/${MAJOR}.${MINOR}.${TEENY}/${PLATFORM}
- ${DESTDIR}${prefix}/lib/ruby/vendor_ruby
- ${DESTDIR}${prefix}/lib/ruby/vendor_ruby/${MAJOR}.${MINOR}.${TEENY}
- ${DESTDIR}${prefix}/lib/ruby/vendor_ruby/${MAJOR}.${MINOR}.${TEENY}/${PLATFORM}
- ${DESTDIR}${prefix}/lib/ruby/gems/${MAJOR}.${MINOR}.${TEENY}
- ${DESTDIR}${prefix}/share/man/man1
- ${DESTDIR}${prefix}/share/ri/${MAJOR}.${MINOR}.${TEENY}/system
If Ruby's API version is 'x.y.z', the ${MAJOR} is 'x', the ${MINOR} is 'y', and the ${TEENY} is 'z'.

NOTE: teeny of the API version may be different from one of Ruby's program version

You may have to be a super user to install Ruby.

If you fail to compile Ruby, please send the detailed error report with the error log and machine/OS type, to help others.

Some extension libraries may not get compiled because of lack of necessary external libraries and/or headers, then you will need to run 'make distclean-ext' to remove old configuration after installing them in such case.

Copying

See the file COPYING.

Feedback

Questions about the Ruby language can be asked on the Ruby-Talk mailing list (https://www.ruby-lang.org/en/community/mailing-lists) or on websites like (https://stackoverflow.com).

Bug reports should be filed at https://bugs.ruby-lang.org. Read HowToReport for more information.

Contributing

See the file CONTRIBUTING.md

The Author

Ruby was originally designed and developed by Yukihiro Matsumoto (Matz) in 1995.

matz@ruby-lang.org