Merge commit 'db4fa08d4da3cc840e6f97e6869a877f2b4c9474' as 'waflib'

1 files changed, 355 insertions, 0 deletions

diff --git a/waflib/Tools/vala.py b/waflib/Tools/vala.py
new file mode 100644
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--- /dev/null
+++ b/waflib/Tools/vala.py
@@ -0,0 +1,355 @@
+#!/usr/bin/env python
+# encoding: utf-8
+# Ali Sabil, 2007
+# Radosław Szkodziński, 2010
+
+"""
+At this point, vala is still unstable, so do not expect
+this tool to be too stable either (apis, etc)
+"""
+
+import re
+from waflib import Build, Context, Errors, Logs, Node, Options, Task, Utils
+from waflib.TaskGen import extension, taskgen_method
+from waflib.Configure import conf
+
+class valac(Task.Task):
+	"""
+	Compiles vala files
+	"""
+	#run_str = "${VALAC} ${VALAFLAGS}" # ideally
+	#vars = ['VALAC_VERSION']
+	vars = ["VALAC", "VALAC_VERSION", "VALAFLAGS"]
+	ext_out = ['.h']
+
+	def run(self):
+		cmd = self.env.VALAC + self.env.VALAFLAGS
+		resources = getattr(self, 'vala_exclude', [])
+		cmd.extend([a.abspath() for a in self.inputs if a not in resources])
+		ret = self.exec_command(cmd, cwd=self.vala_dir_node.abspath())
+
+		if ret:
+			return ret
+
+		if self.generator.dump_deps_node:
+			self.generator.dump_deps_node.write('\n'.join(self.generator.packages))
+
+		return ret
+
+@taskgen_method
+def init_vala_task(self):
+	"""
+	Initializes the vala task with the relevant data (acts as a constructor)
+	"""
+	self.profile = getattr(self, 'profile', 'gobject')
+
+	self.packages = packages = Utils.to_list(getattr(self, 'packages', []))
+	self.use = Utils.to_list(getattr(self, 'use', []))
+	if packages and not self.use:
+		self.use = packages[:] # copy
+
+	if self.profile == 'gobject':
+		if not 'GOBJECT' in self.use:
+			self.use.append('GOBJECT')
+
+	def addflags(flags):
+		self.env.append_value('VALAFLAGS', flags)
+
+	if self.profile:
+		addflags('--profile=%s' % self.profile)
+
+	valatask = self.valatask
+
+	# output directory
+	if hasattr(self, 'vala_dir'):
+		if isinstance(self.vala_dir, str):
+			valatask.vala_dir_node = self.path.get_bld().make_node(self.vala_dir)
+			try:
+				valatask.vala_dir_node.mkdir()
+			except OSError:
+				raise self.bld.fatal('Cannot create the vala dir %r' % valatask.vala_dir_node)
+		else:
+			valatask.vala_dir_node = self.vala_dir
+	else:
+		valatask.vala_dir_node = self.path.get_bld()
+	addflags('--directory=%s' % valatask.vala_dir_node.abspath())
+
+	if hasattr(self, 'thread'):
+		if self.profile == 'gobject':
+			if not 'GTHREAD' in self.use:
+				self.use.append('GTHREAD')
+		else:
+			#Vala doesn't have threading support for dova nor posix
+			Logs.warn('Profile %s means no threading support', self.profile)
+			self.thread = False
+
+		if self.thread:
+			addflags('--thread')
+
+	self.is_lib = 'cprogram' not in self.features
+	if self.is_lib:
+		addflags('--library=%s' % self.target)
+
+		h_node = valatask.vala_dir_node.find_or_declare('%s.h' % self.target)
+		valatask.outputs.append(h_node)
+		addflags('--header=%s' % h_node.name)
+
+		valatask.outputs.append(valatask.vala_dir_node.find_or_declare('%s.vapi' % self.target))
+
+		if getattr(self, 'gir', None):
+			gir_node = valatask.vala_dir_node.find_or_declare('%s.gir' % self.gir)
+			addflags('--gir=%s' % gir_node.name)
+			valatask.outputs.append(gir_node)
+
+	self.vala_target_glib = getattr(self, 'vala_target_glib', getattr(Options.options, 'vala_target_glib', None))
+	if self.vala_target_glib:
+		addflags('--target-glib=%s' % self.vala_target_glib)
+
+	addflags(['--define=%s' % x for x in Utils.to_list(getattr(self, 'vala_defines', []))])
+
+	packages_private = Utils.to_list(getattr(self, 'packages_private', []))
+	addflags(['--pkg=%s' % x for x in packages_private])
+
+	def _get_api_version():
+		api_version = '1.0'
+		if hasattr(Context.g_module, 'API_VERSION'):
+			version = Context.g_module.API_VERSION.split(".")
+			if version[0] == "0":
+				api_version = "0." + version[1]
+			else:
+				api_version = version[0] + ".0"
+		return api_version
+
+	self.includes = Utils.to_list(getattr(self, 'includes', []))
+	valatask.install_path = getattr(self, 'install_path', '')
+
+	valatask.vapi_path = getattr(self, 'vapi_path', '${DATAROOTDIR}/vala/vapi')
+	valatask.pkg_name = getattr(self, 'pkg_name', self.env.PACKAGE)
+	valatask.header_path = getattr(self, 'header_path', '${INCLUDEDIR}/%s-%s' % (valatask.pkg_name, _get_api_version()))
+	valatask.install_binding = getattr(self, 'install_binding', True)
+
+	self.vapi_dirs = vapi_dirs = Utils.to_list(getattr(self, 'vapi_dirs', []))
+	#includes =  []
+
+	if hasattr(self, 'use'):
+		local_packages = Utils.to_list(self.use)[:] # make sure to have a copy
+		seen = []
+		while len(local_packages) > 0:
+			package = local_packages.pop()
+			if package in seen:
+				continue
+			seen.append(package)
+
+			# check if the package exists
+			try:
+				package_obj = self.bld.get_tgen_by_name(package)
+			except Errors.WafError:
+				continue
+
+			# in practice the other task is already processed
+			# but this makes it explicit
+			package_obj.post()
+			package_name = package_obj.target
+			task = getattr(package_obj, 'valatask', None)
+			if task:
+				for output in task.outputs:
+					if output.name == package_name + ".vapi":
+						valatask.set_run_after(task)
+						if package_name not in packages:
+							packages.append(package_name)
+						if output.parent not in vapi_dirs:
+							vapi_dirs.append(output.parent)
+						if output.parent not in self.includes:
+							self.includes.append(output.parent)
+
+			if hasattr(package_obj, 'use'):
+				lst = self.to_list(package_obj.use)
+				lst.reverse()
+				local_packages = [pkg for pkg in lst if pkg not in seen] + local_packages
+
+	addflags(['--pkg=%s' % p for p in packages])
+
+	for vapi_dir in vapi_dirs:
+		if isinstance(vapi_dir, Node.Node):
+			v_node = vapi_dir
+		else:
+			v_node = self.path.find_dir(vapi_dir)
+		if not v_node:
+			Logs.warn('Unable to locate Vala API directory: %r', vapi_dir)
+		else:
+			addflags('--vapidir=%s' % v_node.abspath())
+
+	self.dump_deps_node = None
+	if self.is_lib and self.packages:
+		self.dump_deps_node = valatask.vala_dir_node.find_or_declare('%s.deps' % self.target)
+		valatask.outputs.append(self.dump_deps_node)
+
+	if self.is_lib and valatask.install_binding:
+		headers_list = [o for o in valatask.outputs if o.suffix() == ".h"]
+		if headers_list:
+			self.install_vheader = self.add_install_files(install_to=valatask.header_path, install_from=headers_list)
+
+		vapi_list = [o for o in valatask.outputs if (o.suffix() in (".vapi", ".deps"))]
+		if vapi_list:
+			self.install_vapi = self.add_install_files(install_to=valatask.vapi_path, install_from=vapi_list)
+
+		gir_list = [o for o in valatask.outputs if o.suffix() == '.gir']
+		if gir_list:
+			self.install_gir = self.add_install_files(
+				install_to=getattr(self, 'gir_path', '${DATAROOTDIR}/gir-1.0'), install_from=gir_list)
+
+	if hasattr(self, 'vala_resources'):
+		nodes = self.to_nodes(self.vala_resources)
+		valatask.vala_exclude = getattr(valatask, 'vala_exclude', []) + nodes
+		valatask.inputs.extend(nodes)
+		for x in nodes:
+			addflags(['--gresources', x.abspath()])
+
+@extension('.vala', '.gs')
+def vala_file(self, node):
+	"""
+	Compile a vala file and bind the task to *self.valatask*. If an existing vala task is already set, add the node
+	to its inputs. The typical example is::
+
+		def build(bld):
+			bld.program(
+				packages      = 'gtk+-2.0',
+				target        = 'vala-gtk-example',
+				use           = 'GTK GLIB',
+				source        = 'vala-gtk-example.vala foo.vala',
+				vala_defines  = ['DEBUG'] # adds --define=<xyz> values to the command-line
+
+				# the following arguments are for libraries
+				#gir          = 'hello-1.0',
+				#gir_path     = '/tmp',
+				#vapi_path = '/tmp',
+				#pkg_name = 'hello'
+				# disable installing of gir, vapi and header
+				#install_binding = False
+
+				# profile     = 'xyz' # adds --profile=<xyz> to enable profiling
+				# thread      = True, # adds --thread, except if profile is on or not on 'gobject'
+				# vala_target_glib = 'xyz' # adds --target-glib=<xyz>, can be given through the command-line option --vala-target-glib=<xyz>
+			)
+
+
+	:param node: vala file
+	:type node: :py:class:`waflib.Node.Node`
+	"""
+
+	try:
+		valatask = self.valatask
+	except AttributeError:
+		valatask = self.valatask = self.create_task('valac')
+		self.init_vala_task()
+
+	valatask.inputs.append(node)
+	name = node.name[:node.name.rfind('.')] + '.c'
+	c_node = valatask.vala_dir_node.find_or_declare(name)
+	valatask.outputs.append(c_node)
+	self.source.append(c_node)
+
+@extension('.vapi')
+def vapi_file(self, node):
+	try:
+		valatask = self.valatask
+	except AttributeError:
+		valatask = self.valatask = self.create_task('valac')
+		self.init_vala_task()
+	valatask.inputs.append(node)
+
+@conf
+def find_valac(self, valac_name, min_version):
+	"""
+	Find the valac program, and execute it to store the version
+	number in *conf.env.VALAC_VERSION*
+
+	:param valac_name: program name
+	:type valac_name: string or list of string
+	:param min_version: minimum version acceptable
+	:type min_version: tuple of int
+	"""
+	valac = self.find_program(valac_name, var='VALAC')
+	try:
+		output = self.cmd_and_log(valac + ['--version'])
+	except Errors.WafError:
+		valac_version = None
+	else:
+		ver = re.search(r'\d+.\d+.\d+', output).group().split('.')
+		valac_version = tuple([int(x) for x in ver])
+
+	self.msg('Checking for %s version >= %r' % (valac_name, min_version),
+	         valac_version, valac_version and valac_version >= min_version)
+	if valac and valac_version < min_version:
+		self.fatal("%s version %r is too old, need >= %r" % (valac_name, valac_version, min_version))
+
+	self.env.VALAC_VERSION = valac_version
+	return valac
+
+@conf
+def check_vala(self, min_version=(0,8,0), branch=None):
+	"""
+	Check if vala compiler from a given branch exists of at least a given
+	version.
+
+	:param min_version: minimum version acceptable (0.8.0)
+	:type min_version: tuple
+	:param branch: first part of the version number, in case a snapshot is used (0, 8)
+	:type branch: tuple of int
+	"""
+	if self.env.VALA_MINVER:
+		min_version = self.env.VALA_MINVER
+	if self.env.VALA_MINVER_BRANCH:
+		branch = self.env.VALA_MINVER_BRANCH
+	if not branch:
+		branch = min_version[:2]
+	try:
+		find_valac(self, 'valac-%d.%d' % (branch[0], branch[1]), min_version)
+	except self.errors.ConfigurationError:
+		find_valac(self, 'valac', min_version)
+
+@conf
+def check_vala_deps(self):
+	"""
+	Load the gobject and gthread packages if they are missing.
+	"""
+	if not self.env.HAVE_GOBJECT:
+		pkg_args = {'package':      'gobject-2.0',
+		            'uselib_store': 'GOBJECT',
+		            'args':         '--cflags --libs'}
+		if getattr(Options.options, 'vala_target_glib', None):
+			pkg_args['atleast_version'] = Options.options.vala_target_glib
+		self.check_cfg(**pkg_args)
+
+	if not self.env.HAVE_GTHREAD:
+		pkg_args = {'package':      'gthread-2.0',
+		            'uselib_store': 'GTHREAD',
+		            'args':         '--cflags --libs'}
+		if getattr(Options.options, 'vala_target_glib', None):
+			pkg_args['atleast_version'] = Options.options.vala_target_glib
+		self.check_cfg(**pkg_args)
+
+def configure(self):
+	"""
+	Use the following to enforce minimum vala version::
+
+		def configure(conf):
+			conf.env.VALA_MINVER = (0, 10, 0)
+			conf.load('vala')
+	"""
+	self.load('gnu_dirs')
+	self.check_vala_deps()
+	self.check_vala()
+	self.add_os_flags('VALAFLAGS')
+	self.env.append_unique('VALAFLAGS', ['-C'])
+
+def options(opt):
+	"""
+	Load the :py:mod:`waflib.Tools.gnu_dirs` tool and add the ``--vala-target-glib`` command-line option
+	"""
+	opt.load('gnu_dirs')
+	valaopts = opt.add_option_group('Vala Compiler Options')
+	valaopts.add_option('--vala-target-glib', default=None,
+		dest='vala_target_glib', metavar='MAJOR.MINOR',
+		help='Target version of glib for Vala GObject code generation')
+