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waf/waflib/Tools/vala.py
2013-09-04 23:53:30 -04:00

333 lines
10 KiB
Python

#!/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 os.path, shutil, re
from waflib import Context, Task, Utils, Logs, Options, Errors
from waflib.TaskGen import extension, taskgen_method
from waflib.Configure import conf
class valac(Task.Task):
"""
Task to compile 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
cmd.extend([a.abspath() for a in self.inputs])
ret = self.exec_command(cmd, cwd=self.outputs[0].parent.abspath())
if ret:
return ret
for x in self.outputs:
if id(x.parent) != id(self.outputs[0].parent):
shutil.move(self.outputs[0].parent.abspath() + os.sep + x.name, x.abspath())
if self.generator.dump_deps_node:
self.generator.dump_deps_node.write('\n'.join(self.generator.packages))
return ret
valac = Task.update_outputs(valac) # no decorators for python2 classes
@taskgen_method
def init_vala_task(self):
self.profile = getattr(self, 'profile', 'gobject')
if self.profile == 'gobject':
self.uselib = Utils.to_list(getattr(self, 'uselib', []))
if not 'GOBJECT' in self.uselib:
self.uselib.append('GOBJECT')
def addflags(flags):
self.env.append_value('VALAFLAGS', flags)
if self.profile:
addflags('--profile=%s' % self.profile)
if hasattr(self, 'threading'):
if self.profile == 'gobject':
if not 'GTHREAD' in self.uselib:
self.uselib.append('GTHREAD')
else:
#Vala doesn't have threading support for dova nor posix
Logs.warn("Profile %s means no threading support" % self.profile)
self.threading = False
if self.threading:
addflags('--threading')
valatask = self.valatask
self.is_lib = 'cprogram' not in self.features
if self.is_lib:
addflags('--library=%s' % self.target)
h_node = self.path.find_or_declare('%s.h' % self.target)
valatask.outputs.append(h_node)
addflags('--header=%s' % h_node.name)
valatask.outputs.append(self.path.find_or_declare('%s.vapi' % self.target))
if getattr(self, 'gir', None):
gir_node = self.path.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 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', []))
self.uselib = self.to_list(getattr(self, 'uselib', []))
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.packages = packages = Utils.to_list(getattr(self, 'packages', []))
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
package_name = package_obj.target
package_node = package_obj.path
package_dir = package_node.path_from(self.path)
for task in package_obj.tasks:
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 package_dir not in vapi_dirs:
vapi_dirs.append(package_dir)
if package_dir not in includes:
includes.append(package_dir)
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:
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())
addflags('--vapidir=%s' % v_node.get_bld().abspath())
self.dump_deps_node = None
if self.is_lib and self.packages:
self.dump_deps_node = self.path.find_or_declare('%s.deps' % self.target)
valatask.outputs.append(self.dump_deps_node)
self.includes.append(self.bld.srcnode.abspath())
self.includes.append(self.bld.bldnode.abspath())
for include in includes:
try:
self.includes.append(self.path.find_dir(include).abspath())
self.includes.append(self.path.find_dir(include).get_bld().abspath())
except AttributeError:
Logs.warn("Unable to locate include directory: '%s'" % include)
if self.is_lib and valatask.install_binding:
headers_list = [o for o in valatask.outputs if o.suffix() == ".h"]
try:
self.install_vheader.source = headers_list
except AttributeError:
self.install_vheader = self.bld.install_files(valatask.header_path, headers_list, self.env)
vapi_list = [o for o in valatask.outputs if (o.suffix() in (".vapi", ".deps"))]
try:
self.install_vapi.source = vapi_list
except AttributeError:
self.install_vapi = self.bld.install_files(valatask.vapi_path, vapi_list, self.env)
gir_list = [o for o in valatask.outputs if o.suffix() == '.gir']
try:
self.install_gir.source = gir_list
except AttributeError:
self.install_gir = self.bld.install_files(getattr(self, 'gir_path', '${DATAROOTDIR}/gir-1.0'), gir_list, self.env)
@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',
uselib = '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
# threading = True, # add --threading, 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)
c_node = node.change_ext('.c')
valatask.outputs.append(c_node)
self.source.append(c_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 Exception:
valac_version = None
else:
ver = re.search(r'\d+.\d+.\d+', output).group(0).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 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.load('vala', funs='')
conf.check_vala(min_version=(0,10,0))
"""
self.load('gnu_dirs')
self.check_vala_deps()
self.check_vala()
self.env.VALAFLAGS = ['-C', '--quiet']
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')