From eede9648d50c3750f6f8d1319a79dd76d7f10b55 Mon Sep 17 00:00:00 2001
From: David Robillard <d@drobilla.net>
Date: Sat, 15 Sep 2018 14:51:02 +0200
Subject: Squashed 'waflib/' content from commit 982416b8
git-subtree-dir: waflib
git-subtree-split: 982416b8a6c6728e200243e1be3ab60435c08830
---
Tools/ruby.py | 186 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 186 insertions(+)
create mode 100644 Tools/ruby.py
(limited to 'Tools/ruby.py')
diff --git a/Tools/ruby.py b/Tools/ruby.py
new file mode 100644
index 00000000..8d92a79a
--- /dev/null
+++ b/Tools/ruby.py
@@ -0,0 +1,186 @@
+#!/usr/bin/env python
+# encoding: utf-8
+# daniel.svensson at purplescout.se 2008
+# Thomas Nagy 2016-2018 (ita)
+
+"""
+Support for Ruby extensions. A C/C++ compiler is required::
+
+ def options(opt):
+ opt.load('compiler_c ruby')
+ def configure(conf):
+ conf.load('compiler_c ruby')
+ conf.check_ruby_version((1,8,0))
+ conf.check_ruby_ext_devel()
+ conf.check_ruby_module('libxml')
+ def build(bld):
+ bld(
+ features = 'c cshlib rubyext',
+ source = 'rb_mytest.c',
+ target = 'mytest_ext',
+ install_path = '${ARCHDIR_RUBY}')
+ bld.install_files('${LIBDIR_RUBY}', 'Mytest.rb')
+"""
+
+import os
+from waflib import Errors, Options, Task, Utils
+from waflib.TaskGen import before_method, feature, extension
+from waflib.Configure import conf
+
+@feature('rubyext')
+@before_method('apply_incpaths', 'process_source', 'apply_bundle', 'apply_link')
+def init_rubyext(self):
+ """
+ Add required variables for ruby extensions
+ """
+ self.install_path = '${ARCHDIR_RUBY}'
+ self.uselib = self.to_list(getattr(self, 'uselib', ''))
+ if not 'RUBY' in self.uselib:
+ self.uselib.append('RUBY')
+ if not 'RUBYEXT' in self.uselib:
+ self.uselib.append('RUBYEXT')
+
+@feature('rubyext')
+@before_method('apply_link', 'propagate_uselib_vars')
+def apply_ruby_so_name(self):
+ """
+ Strip the *lib* prefix from ruby extensions
+ """
+ self.env.cshlib_PATTERN = self.env.cxxshlib_PATTERN = self.env.rubyext_PATTERN
+
+@conf
+def check_ruby_version(self, minver=()):
+ """
+ Checks if ruby is installed.
+ If installed the variable RUBY will be set in environment.
+ The ruby binary can be overridden by ``--with-ruby-binary`` command-line option.
+ """
+
+ ruby = self.find_program('ruby', var='RUBY', value=Options.options.rubybinary)
+
+ try:
+ version = self.cmd_and_log(ruby + ['-e', 'puts defined?(VERSION) ? VERSION : RUBY_VERSION']).strip()
+ except Errors.WafError:
+ self.fatal('could not determine ruby version')
+ self.env.RUBY_VERSION = version
+
+ try:
+ ver = tuple(map(int, version.split('.')))
+ except Errors.WafError:
+ self.fatal('unsupported ruby version %r' % version)
+
+ cver = ''
+ if minver:
+ cver = '> ' + '.'.join(str(x) for x in minver)
+ if ver < minver:
+ self.fatal('ruby is too old %r' % ver)
+
+ self.msg('Checking for ruby version %s' % cver, version)
+
+@conf
+def check_ruby_ext_devel(self):
+ """
+ Check if a ruby extension can be created
+ """
+ if not self.env.RUBY:
+ self.fatal('ruby detection is required first')
+
+ if not self.env.CC_NAME and not self.env.CXX_NAME:
+ self.fatal('load a c/c++ compiler first')
+
+ version = tuple(map(int, self.env.RUBY_VERSION.split(".")))
+
+ def read_out(cmd):
+ return Utils.to_list(self.cmd_and_log(self.env.RUBY + ['-rrbconfig', '-e', cmd]))
+
+ def read_config(key):
+ return read_out('puts RbConfig::CONFIG[%r]' % key)
+
+ cpppath = archdir = read_config('archdir')
+
+ if version >= (1, 9, 0):
+ ruby_hdrdir = read_config('rubyhdrdir')
+ cpppath += ruby_hdrdir
+ if version >= (2, 0, 0):
+ cpppath += read_config('rubyarchhdrdir')
+ cpppath += [os.path.join(ruby_hdrdir[0], read_config('arch')[0])]
+
+ self.check(header_name='ruby.h', includes=cpppath, errmsg='could not find ruby header file', link_header_test=False)
+
+ self.env.LIBPATH_RUBYEXT = read_config('libdir')
+ self.env.LIBPATH_RUBYEXT += archdir
+ self.env.INCLUDES_RUBYEXT = cpppath
+ self.env.CFLAGS_RUBYEXT = read_config('CCDLFLAGS')
+ self.env.rubyext_PATTERN = '%s.' + read_config('DLEXT')[0]
+
+ # ok this is really stupid, but the command and flags are combined.
+ # so we try to find the first argument...
+ flags = read_config('LDSHARED')
+ while flags and flags[0][0] != '-':
+ flags = flags[1:]
+
+ # we also want to strip out the deprecated ppc flags
+ if len(flags) > 1 and flags[1] == "ppc":
+ flags = flags[2:]
+
+ self.env.LINKFLAGS_RUBYEXT = flags
+ self.env.LINKFLAGS_RUBYEXT += read_config('LIBS')
+ self.env.LINKFLAGS_RUBYEXT += read_config('LIBRUBYARG_SHARED')
+
+ if Options.options.rubyarchdir:
+ self.env.ARCHDIR_RUBY = Options.options.rubyarchdir
+ else:
+ self.env.ARCHDIR_RUBY = read_config('sitearchdir')[0]
+
+ if Options.options.rubylibdir:
+ self.env.LIBDIR_RUBY = Options.options.rubylibdir
+ else:
+ self.env.LIBDIR_RUBY = read_config('sitelibdir')[0]
+
+@conf
+def check_ruby_module(self, module_name):
+ """
+ Check if the selected ruby interpreter can require the given ruby module::
+
+ def configure(conf):
+ conf.check_ruby_module('libxml')
+
+ :param module_name: module
+ :type module_name: string
+ """
+ self.start_msg('Ruby module %s' % module_name)
+ try:
+ self.cmd_and_log(self.env.RUBY + ['-e', 'require \'%s\';puts 1' % module_name])
+ except Errors.WafError:
+ self.end_msg(False)
+ self.fatal('Could not find the ruby module %r' % module_name)
+ self.end_msg(True)
+
+@extension('.rb')
+def process(self, node):
+ return self.create_task('run_ruby', node)
+
+class run_ruby(Task.Task):
+ """
+ Task to run ruby files detected by file extension .rb::
+
+ def options(opt):
+ opt.load('ruby')
+
+ def configure(ctx):
+ ctx.check_ruby_version()
+
+ def build(bld):
+ bld.env.RBFLAGS = '-e puts "hello world"'
+ bld(source='a_ruby_file.rb')
+ """
+ run_str = '${RUBY} ${RBFLAGS} -I ${SRC[0].parent.abspath()} ${SRC}'
+
+def options(opt):
+ """
+ Add the ``--with-ruby-archdir``, ``--with-ruby-libdir`` and ``--with-ruby-binary`` options
+ """
+ opt.add_option('--with-ruby-archdir', type='string', dest='rubyarchdir', help='Specify directory where to install arch specific files')
+ opt.add_option('--with-ruby-libdir', type='string', dest='rubylibdir', help='Specify alternate ruby library path')
+ opt.add_option('--with-ruby-binary', type='string', dest='rubybinary', help='Specify alternate ruby binary')
+
--
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