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Diffstat (limited to 'Tools/ruby.py')
| -rw-r--r-- | Tools/ruby.py | 186 |
1 files changed, 186 insertions, 0 deletions
diff --git a/Tools/ruby.py b/Tools/ruby.py new file mode 100644 index 0000000..8d92a79 --- /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') + |