# Copyright 2012-2016 The Meson development team
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
# http://www.apache.org/licenses/LICENSE-2.0
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
import os, pickle, re
from .. import build
from .. import dependencies
from .. import mesonlib
from .. import mlog
from .. import compilers
import json
import subprocess
from ..mesonlib import MesonException
from ..mesonlib import get_compiler_for_source, classify_unity_sources
from ..compilers import CompilerArgs
from collections import OrderedDict
import shlex
class CleanTrees:
'''
Directories outputted by custom targets that have to be manually cleaned
because on Linux `ninja clean` only deletes empty directories.
'''
def __init__(self, build_dir, trees):
self.build_dir = build_dir
self.trees = trees
class InstallData:
def __init__(self, source_dir, build_dir, prefix, strip_bin, mesonintrospect):
self.source_dir = source_dir
self.build_dir = build_dir
self.prefix = prefix
self.strip_bin = strip_bin
self.targets = []
self.headers = []
self.man = []
self.data = []
self.po_package_name = ''
self.po = []
self.install_scripts = []
self.install_subdirs = []
self.mesonintrospect = mesonintrospect
class ExecutableSerialisation:
def __init__(self, name, fname, cmd_args, env, is_cross, exe_wrapper,
workdir, extra_paths, capture):
self.name = name
self.fname = fname
self.cmd_args = cmd_args
self.env = env
self.is_cross = is_cross
self.exe_runner = exe_wrapper
self.workdir = workdir
self.extra_paths = extra_paths
self.capture = capture
class TestSerialisation:
def __init__(self, name, suite, fname, is_cross_built, exe_wrapper, is_parallel, cmd_args, env,
should_fail, timeout, workdir, extra_paths):
self.name = name
self.suite = suite
self.fname = fname
self.is_cross_built = is_cross_built
self.exe_runner = exe_wrapper
self.is_parallel = is_parallel
self.cmd_args = cmd_args
self.env = env
self.should_fail = should_fail
self.timeout = timeout
self.workdir = workdir
self.extra_paths = extra_paths
class OptionProxy:
def __init__(self, name, value):
self.name = name
self.value = value
class OptionOverrideProxy:
'''Mimic an option list but transparently override
selected option values.'''
def __init__(self, overrides, options):
self.overrides = overrides
self.options = options
def __getitem__(self, option_name):
base_opt = self.options[option_name]
if option_name in self.overrides:
return OptionProxy(base_opt.name, base_opt.validate_value(self.overrides[option_name]))
return base_opt
# This class contains the basic functionality that is needed by all backends.
# Feel free to move stuff in and out of it as you see fit.
class Backend:
def __init__(self, build):
self.build = build
self.environment = build.environment
self.processed_targets = {}
self.build_to_src = os.path.relpath(self.environment.get_source_dir(),
self.environment.get_build_dir())
for t in self.build.targets:
priv_dirname = self.get_target_private_dir_abs(t)
os.makedirs(priv_dirname, exist_ok=True)
def get_target_filename(self, t):
if isinstance(t, build.CustomTarget):
if len(t.get_outputs()) != 1:
mlog.warning('custom_target {!r} has more than one output! '
'Using the first one.'.format(t.name))
filename = t.get_outputs()[0]
else:
assert(isinstance(t, build.BuildTarget))
filename = t.get_filename()
return os.path.join(self.get_target_dir(t), filename)
def get_target_filename_abs(self, target):
return os.path.join(self.environment.get_build_dir(), self.get_target_filename(target))
def get_option_for_target(self, option_name, target):
if option_name in target.option_overrides:
override = target.option_overrides[option_name]
return self.environment.coredata.validate_option_value(option_name, override)
return self.environment.coredata.get_builtin_option(option_name)
def get_target_filename_for_linking(self, target):
# On some platforms (msvc for instance), the file that is used for
# dynamic linking is not the same as the dynamic library itself. This
# file is called an import library, and we want to link against that.
# On all other platforms, we link to the library directly.
if isinstance(target, build.SharedLibrary):
link_lib = target.get_import_filename() or target.get_filename()
return os.path.join(self.get_target_dir(target), link_lib)
elif isinstance(target, build.StaticLibrary):
return os.path.join(self.get_target_dir(target), target.get_filename())
elif isinstance(target, build.Executable):
if target.import_filename:
return os.path.join(self.get_target_dir(target), target.get_import_filename())
else:
return None
raise AssertionError('BUG: Tried to link to {!r} which is not linkable'.format(target))
def get_target_dir(self, target):
if self.environment.coredata.get_builtin_option('layout') == 'mirror':
dirname = target.get_subdir()
else:
dirname = 'meson-out'
return dirname
def get_target_dir_relative_to(self, t, o):
'''Get a target dir relative to another target's directory'''
target_dir = os.path.join(self.environment.get_build_dir(), self.get_target_dir(t))
othert_dir = os.path.join(self.environment.get_build_dir(), self.get_target_dir(o))
return os.path.relpath(target_dir, othert_dir)
def get_target_source_dir(self, target):
# if target dir is empty, avoid extraneous trailing / from os.path.join()
target_dir = self.get_target_dir(target)
if target_dir:
return os.path.join(self.build_to_src, target_dir)
return self.build_to_src
def get_target_private_dir(self, target):
dirname = os.path.join(self.get_target_dir(target), target.get_basename() + target.type_suffix())
return dirname
def get_target_private_dir_abs(self, target):
dirname = os.path.join(self.environment.get_build_dir(), self.get_target_private_dir(target))
return dirname
def get_target_generated_dir(self, target, gensrc, src):
"""
Takes a BuildTarget, a generator source (CustomTarget or GeneratedList),
and a generated source filename.
Returns the full path of the generated source relative to the build root
"""
# CustomTarget generators output to the build dir of the CustomTarget
if isinstance(gensrc, (build.CustomTarget, build.CustomTargetIndex)):
return os.path.join(self.get_target_dir(gensrc), src)
# GeneratedList generators output to the private build directory of the
# target that the GeneratedList is used in
return os.path.join(self.get_target_private_dir(target), src)
def get_unity_source_file(self, target, suffix):
osrc = target.name + '-unity.' + suffix
return mesonlib.File.from_built_file(self.get_target_private_dir(target), osrc)
def generate_unity_files(self, target, unity_src):
abs_files = []
result = []
compsrcs = classify_unity_sources(target.compilers.values(), unity_src)
def init_language_file(suffix):
unity_src = self.get_unity_source_file(target, suffix)
outfileabs = unity_src.absolute_path(self.environment.get_source_dir(),
self.environment.get_build_dir())
outfileabs_tmp = outfileabs + '.tmp'
abs_files.append(outfileabs)
outfileabs_tmp_dir = os.path.dirname(outfileabs_tmp)
if not os.path.exists(outfileabs_tmp_dir):
os.makedirs(outfileabs_tmp_dir)
result.append(unity_src)
return open(outfileabs_tmp, 'w')
# For each language, generate a unity source file and return the list
for comp, srcs in compsrcs.items():
with init_language_file(comp.get_default_suffix()) as ofile:
for src in srcs:
ofile.write('#include<%s>\n' % src)
[mesonlib.replace_if_different(x, x + '.tmp') for x in abs_files]
return result
def relpath(self, todir, fromdir):
return os.path.relpath(os.path.join('dummyprefixdir', todir),
os.path.join('dummyprefixdir', fromdir))
def flatten_object_list(self, target, proj_dir_to_build_root=''):
obj_list = []
for obj in target.get_objects():
if isinstance(obj, str):
o = os.path.join(proj_dir_to_build_root,
self.build_to_src, target.get_subdir(), obj)
obj_list.append(o)
elif isinstance(obj, mesonlib.File):
obj_list.append(obj.rel_to_builddir(self.build_to_src))
elif isinstance(obj, build.ExtractedObjects):
obj_list += self.determine_ext_objs(target, obj, proj_dir_to_build_root)
else:
raise MesonException('Unknown data type in object list.')
return obj_list
def serialize_executable(self, exe, cmd_args, workdir, env={},
extra_paths=None, capture=None):
import hashlib
if extra_paths is None:
# The callee didn't check if we needed extra paths, so check it here
if mesonlib.is_windows() or mesonlib.is_cygwin():
extra_paths = self.determine_windows_extra_paths(exe, [])
else:
extra_paths = []
# Can't just use exe.name here; it will likely be run more than once
if isinstance(exe, (dependencies.ExternalProgram,
build.BuildTarget, build.CustomTarget)):
basename = exe.name
else:
basename = os.path.basename(exe)
# Take a digest of the cmd args, env, workdir, and capture. This avoids
# collisions and also makes the name deterministic over regenerations
# which avoids a rebuild by Ninja because the cmdline stays the same.
data = bytes(str(sorted(env.items())) + str(cmd_args) + str(workdir) + str(capture),
encoding='utf-8')
digest = hashlib.sha1(data).hexdigest()
scratch_file = 'meson_exe_{0}_{1}.dat'.format(basename, digest)
exe_data = os.path.join(self.environment.get_scratch_dir(), scratch_file)
with open(exe_data, 'wb') as f:
if isinstance(exe, dependencies.ExternalProgram):
exe_cmd = exe.get_command()
exe_needs_wrapper = False
elif isinstance(exe, (build.BuildTarget, build.CustomTarget)):
exe_cmd = [self.get_target_filename_abs(exe)]
exe_needs_wrapper = exe.is_cross
else:
exe_cmd = [exe]
exe_needs_wrapper = False
is_cross_built = exe_needs_wrapper and \
self.environment.is_cross_build() and \
self.environment.cross_info.need_cross_compiler() and \
self.environment.cross_info.need_exe_wrapper()
if is_cross_built:
exe_wrapper = self.environment.cross_info.config['binaries'].get('exe_wrapper', None)
else:
exe_wrapper = None
es = ExecutableSerialisation(basename, exe_cmd, cmd_args, env,
is_cross_built, exe_wrapper, workdir,
extra_paths, capture)
pickle.dump(es, f)
return exe_data
def serialize_tests(self):
test_data = os.path.join(self.environment.get_scratch_dir(), 'meson_test_setup.dat')
with open(test_data, 'wb') as datafile:
self.write_test_file(datafile)
benchmark_data = os.path.join(self.environment.get_scratch_dir(), 'meson_benchmark_setup.dat')
with open(benchmark_data, 'wb') as datafile:
self.write_benchmark_file(datafile)
return test_data, benchmark_data
def determine_linker(self, target):
'''
If we're building a static library, there is only one static linker.
Otherwise, we query the target for the dynamic linker.
'''
if isinstance(target, build.StaticLibrary):
if target.is_cross:
return self.build.static_cross_linker
else:
return self.build.static_linker
l = target.get_clike_dynamic_linker()
if not l:
m = "Couldn't determine linker for target {!r}"
raise MesonException(m.format(target.name))
return l
def rpaths_for_bundled_shared_libraries(self, target):
paths = []
for dep in target.external_deps:
if isinstance(dep, dependencies.ExternalLibrary):
la = dep.link_args
if len(la) == 1 and os.path.isabs(la[0]):
# The only link argument is an absolute path to a library file.
libpath = la[0]
if libpath.startswith(('/usr/lib', '/lib')):
# No point in adding system paths.
continue
if os.path.splitext(libpath)[1] not in ['.dll', '.lib', '.so']:
continue
absdir = os.path.split(libpath)[0]
rel_to_src = absdir[len(self.environment.get_source_dir()) + 1:]
assert(not os.path.isabs(rel_to_src))
paths.append(os.path.join(self.build_to_src, rel_to_src))
return paths
def determine_rpath_dirs(self, target):
link_deps = target.get_all_link_deps()
result = []
for ld in link_deps:
if ld is target:
continue
prospective = self.get_target_dir(ld)
if prospective not in result:
result.append(prospective)
for rp in self.rpaths_for_bundled_shared_libraries(target):
if rp not in result:
result += [rp]
return result
def object_filename_from_source(self, target, source, is_unity):
assert isinstance(source, mesonlib.File)
build_dir = self.environment.get_build_dir()
rel_src = source.rel_to_builddir(self.build_to_src)
# foo.vala files compile down to foo.c and then foo.c.o, not foo.vala.o
if rel_src.endswith(('.vala', '.gs')):
# See description in generate_vala_compile for this logic.
if source.is_built:
if os.path.isabs(rel_src):
rel_src = rel_src[len(build_dir) + 1:]
rel_src = os.path.relpath(rel_src, self.get_target_private_dir(target))
else:
rel_src = os.path.basename(rel_src)
if is_unity:
return 'meson-generated_' + rel_src[:-5] + '.c.' + self.environment.get_object_suffix()
# A meson- prefixed directory is reserved; hopefully no-one creates a file name with such a weird prefix.
source = 'meson-generated_' + rel_src[:-5] + '.c'
elif source.is_built:
if os.path.isabs(rel_src):
rel_src = rel_src[len(build_dir) + 1:]
targetdir = self.get_target_private_dir(target)
# A meson- prefixed directory is reserved; hopefully no-one creates a file name with such a weird prefix.
source = 'meson-generated_' + os.path.relpath(rel_src, targetdir)
else:
if os.path.isabs(rel_src):
# Not from the source directory; hopefully this doesn't conflict with user's source files.
source = os.path.basename(rel_src)
else:
source = os.path.relpath(os.path.join(build_dir, rel_src),
os.path.join(self.environment.get_source_dir(), target.get_subdir()))
return source.replace('/', '_').replace('\\', '_') + '.' + self.environment.get_object_suffix()
def determine_ext_objs(self, target, extobj, proj_dir_to_build_root):
result = []
targetdir = self.get_target_private_dir(extobj.target)
# With unity builds, there's just one object that contains all the
# sources, and we only support extracting all the objects in this mode,
# so just return that.
if self.is_unity(target):
comp = get_compiler_for_source(extobj.target.compilers.values(),
extobj.srclist[0])
# There is a potential conflict here, but it is unlikely that
# anyone both enables unity builds and has a file called foo-unity.cpp.
osrc = self.get_unity_source_file(extobj.target,
comp.get_default_suffix())
objname = self.object_filename_from_source(extobj.target, osrc, True)
objname = objname.replace('/', '_').replace('\\', '_')
objpath = os.path.join(proj_dir_to_build_root, targetdir, objname)
return [objpath]
for osrc in extobj.srclist:
objname = self.object_filename_from_source(extobj.target, osrc, False)
objpath = os.path.join(proj_dir_to_build_root, targetdir, objname)
result.append(objpath)
return result
def get_pch_include_args(self, compiler, target):
args = []
pchpath = self.get_target_private_dir(target)
includeargs = compiler.get_include_args(pchpath, False)
for lang in ['c', 'cpp']:
p = target.get_pch(lang)
if not p:
continue
if compiler.can_compile(p[-1]):
header = p[0]
args += compiler.get_pch_use_args(pchpath, header)
if len(args) > 0:
args = includeargs + args
return args
@staticmethod
def escape_extra_args(compiler, args):
# No extra escaping/quoting needed when not running on Windows
if not mesonlib.is_windows():
return args
extra_args = []
# Compiler-specific escaping is needed for -D args but not for any others
if compiler.get_id() == 'msvc':
# MSVC needs escaping when a -D argument ends in \ or \"
for arg in args:
if arg.startswith('-D') or arg.startswith('/D'):
# Without extra escaping for these two, the next character
# gets eaten
if arg.endswith('\\'):
arg += '\\'
elif arg.endswith('\\"'):
arg = arg[:-2] + '\\\\"'
extra_args.append(arg)
else:
# MinGW GCC needs all backslashes in defines to be doubly-escaped
# FIXME: Not sure about Cygwin or Clang
for arg in args:
if arg.startswith('-D') or arg.startswith('/D'):
arg = arg.replace('\\', '\\\\')
extra_args.append(arg)
return extra_args
def generate_basic_compiler_args(self, target, compiler, no_warn_args=False):
# Create an empty commands list, and start adding arguments from
# various sources in the order in which they must override each other
# starting from hard-coded defaults followed by build options and so on.
commands = CompilerArgs(compiler)
copt_proxy = OptionOverrideProxy(target.option_overrides, self.environment.coredata.compiler_options)
# First, the trivial ones that are impossible to override.
#
# Add -nostdinc/-nostdinc++ if needed; can't be overridden
commands += self.get_cross_stdlib_args(target, compiler)
# Add things like /NOLOGO or -pipe; usually can't be overridden
commands += compiler.get_always_args()
# Only add warning-flags by default if the buildtype enables it, and if
# we weren't explicitly asked to not emit warnings (for Vala, f.ex)
if no_warn_args:
commands += compiler.get_no_warn_args()
elif self.get_option_for_target('buildtype', target) != 'plain':
commands += compiler.get_warn_args(self.get_option_for_target('warning_level', target))
# Add -Werror if werror=true is set in the build options set on the
# command-line or default_options inside project(). This only sets the
# action to be done for warnings if/when they are emitted, so it's ok
# to set it after get_no_warn_args() or get_warn_args().
if self.get_option_for_target('werror', target):
commands += compiler.get_werror_args()
# Add compile args for c_* or cpp_* build options set on the
# command-line or default_options inside project().
commands += compiler.get_option_compile_args(copt_proxy)
# Add buildtype args: optimization level, debugging, etc.
commands += compiler.get_buildtype_args(self.get_option_for_target('buildtype', target))
# Add compile args added using add_project_arguments()
commands += self.build.get_project_args(compiler, target.subproject)
# Add compile args added using add_global_arguments()
# These override per-project arguments
commands += self.build.get_global_args(compiler)
if not target.is_cross:
# Compile args added from the env: CFLAGS/CXXFLAGS, etc. We want these
# to override all the defaults, but not the per-target compile args.
commands += self.environment.coredata.external_args[compiler.get_language()]
# Always set -fPIC for shared libraries
if isinstance(target, build.SharedLibrary):
commands += compiler.get_pic_args()
# Set -fPIC for static libraries by default unless explicitly disabled
if isinstance(target, build.StaticLibrary) and target.pic:
commands += compiler.get_pic_args()
# Add compile args needed to find external dependencies. Link args are
# added while generating the link command.
# NOTE: We must preserve the order in which external deps are
# specified, so we reverse the list before iterating over it.
for dep in reversed(target.get_external_deps()):
if not dep.found():
continue
if compiler.language == 'vala':
if isinstance(dep, dependencies.PkgConfigDependency):
if dep.name == 'glib-2.0' and dep.version_reqs is not None:
for req in dep.version_reqs:
if req.startswith(('>=', '==')):
commands += ['--target-glib', req[2:]]
break
commands += ['--pkg', dep.name]
elif isinstance(dep, dependencies.ExternalLibrary):
commands += dep.get_link_args('vala')
else:
commands += dep.get_compile_args()
# Qt needs -fPIC for executables
# XXX: We should move to -fPIC for all executables
if isinstance(target, build.Executable):
commands += dep.get_exe_args(compiler)
# For 'automagic' deps: Boost and GTest. Also dependency('threads').
# pkg-config puts the thread flags itself via `Cflags:`
if dep.need_threads():
commands += compiler.thread_flags()
# Fortran requires extra include directives.
if compiler.language == 'fortran':
for lt in target.link_targets:
priv_dir = os.path.join(self.get_target_dir(lt), lt.get_basename() + lt.type_suffix())
incflag = compiler.get_include_args(priv_dir, False)
commands += incflag
return commands
def build_target_link_arguments(self, compiler, deps):
args = []
for d in deps:
if not (d.is_linkable_target()):
raise RuntimeError('Tried to link with a non-library target "%s".' % d.get_basename())
d_arg = self.get_target_filename_for_linking(d)
if not d_arg:
continue
if isinstance(compiler, (compilers.LLVMDCompiler, compilers.DmdDCompiler)):
d_arg = '-L' + d_arg
args.append(d_arg)
return args
def determine_windows_extra_paths(self, target, extra_bdeps):
'''On Windows there is no such thing as an rpath.
We must determine all locations of DLLs that this exe
links to and return them so they can be used in unit
tests.'''
result = []
prospectives = []
if isinstance(target, build.Executable):
prospectives = target.get_transitive_link_deps()
# External deps
for deppath in self.rpaths_for_bundled_shared_libraries(target):
result.append(os.path.normpath(os.path.join(self.environment.get_build_dir(), deppath)))
for bdep in extra_bdeps:
prospectives += bdep.get_transitive_link_deps()
# Internal deps
for ld in prospectives:
if ld == '' or ld == '.':
continue
dirseg = os.path.join(self.environment.get_build_dir(), self.get_target_dir(ld))
if dirseg not in result:
result.append(dirseg)
return result
def write_benchmark_file(self, datafile):
self.write_test_serialisation(self.build.get_benchmarks(), datafile)
def write_test_file(self, datafile):
self.write_test_serialisation(self.build.get_tests(), datafile)
def write_test_serialisation(self, tests, datafile):
arr = []
for t in tests:
exe = t.get_exe()
if isinstance(exe, dependencies.ExternalProgram):
cmd = exe.get_command()
else:
cmd = [os.path.join(self.environment.get_build_dir(), self.get_target_filename(t.get_exe()))]
is_cross = self.environment.is_cross_build() and \
self.environment.cross_info.need_cross_compiler() and \
self.environment.cross_info.need_exe_wrapper()
if isinstance(exe, build.BuildTarget):
is_cross = is_cross and exe.is_cross
if isinstance(exe, dependencies.ExternalProgram):
# E.g. an external verifier or simulator program run on a generated executable.
# Can always be run.
is_cross = False
if is_cross:
exe_wrapper = self.environment.cross_info.config['binaries'].get('exe_wrapper', None)
else:
exe_wrapper = None
if mesonlib.is_windows() or mesonlib.is_cygwin():
extra_paths = self.determine_windows_extra_paths(exe, [])
else:
extra_paths = []
cmd_args = []
for a in t.cmd_args:
if hasattr(a, 'held_object'):
a = a.held_object
if isinstance(a, mesonlib.File):
a = os.path.join(self.environment.get_build_dir(), a.rel_to_builddir(self.build_to_src))
cmd_args.append(a)
elif isinstance(a, str):
cmd_args.append(a)
elif isinstance(a, build.Target):
cmd_args.append(self.get_target_filename(a))
else:
raise MesonException('Bad object in test command.')
ts = TestSerialisation(t.get_name(), t.suite, cmd, is_cross, exe_wrapper,
t.is_parallel, cmd_args, t.env, t.should_fail,
t.timeout, t.workdir, extra_paths)
arr.append(ts)
pickle.dump(arr, datafile)
def generate_depmf_install(self, d):
if self.build.dep_manifest_name is None:
return
ifilename = os.path.join(self.environment.get_build_dir(), 'depmf.json')
ofilename = os.path.join(self.environment.get_prefix(), self.build.dep_manifest_name)
mfobj = {'type': 'dependency manifest', 'version': '1.0', 'projects': self.build.dep_manifest}
with open(ifilename, 'w') as f:
f.write(json.dumps(mfobj))
# Copy file from, to, and with mode unchanged
d.data.append([ifilename, ofilename, None])
def get_regen_filelist(self):
'''List of all files whose alteration means that the build
definition needs to be regenerated.'''
deps = [os.path.join(self.build_to_src, df)
for df in self.interpreter.get_build_def_files()]
if self.environment.is_cross_build():
deps.append(os.path.join(self.build_to_src,
self.environment.coredata.cross_file))
deps.append('meson-private/coredata.dat')
if os.path.exists(os.path.join(self.environment.get_source_dir(), 'meson_options.txt')):
deps.append(os.path.join(self.build_to_src, 'meson_options.txt'))
for sp in self.build.subprojects.keys():
fname = os.path.join(self.environment.get_source_dir(), sp, 'meson_options.txt')
if os.path.isfile(fname):
deps.append(os.path.join(self.build_to_src, sp, 'meson_options.txt'))
return deps
def exe_object_to_cmd_array(self, exe):
if self.environment.is_cross_build() and \
self.environment.cross_info.need_exe_wrapper() and \
isinstance(exe, build.BuildTarget) and exe.is_cross:
if 'exe_wrapper' not in self.environment.cross_info.config['binaries']:
s = 'Can not use target %s as a generator because it is cross-built\n'
s += 'and no exe wrapper is defined. You might want to set it to native instead.'
s = s % exe.name
raise MesonException(s)
if isinstance(exe, build.BuildTarget):
exe_arr = [os.path.join(self.environment.get_build_dir(), self.get_target_filename(exe))]
else:
exe_arr = exe.get_command()
return exe_arr
def replace_extra_args(self, args, genlist):
final_args = []
for a in args:
if a == '@EXTRA_ARGS@':
final_args += genlist.get_extra_args()
else:
final_args.append(a)
return final_args
def replace_outputs(self, args, private_dir, output_list):
newargs = []
regex = re.compile('@OUTPUT(\d+)@')
for arg in args:
m = regex.search(arg)
while m is not None:
index = int(m.group(1))
src = '@OUTPUT%d@' % index
arg = arg.replace(src, os.path.join(private_dir, output_list[index]))
m = regex.search(arg)
newargs.append(arg)
return newargs
def get_build_by_default_targets(self):
result = OrderedDict()
# Get all build and custom targets that must be built by default
for name, t in self.build.get_targets().items():
if t.build_by_default or t.install or t.build_always:
result[name] = t
# Get all targets used as test executables and arguments. These must
# also be built by default. XXX: Sometime in the future these should be
# built only before running tests.
for t in self.build.get_tests():
exe = t.exe
if hasattr(exe, 'held_object'):
exe = exe.held_object
if isinstance(exe, (build.CustomTarget, build.BuildTarget)):
result[exe.get_id()] = exe
for arg in t.cmd_args:
if hasattr(arg, 'held_object'):
arg = arg.held_object
if not isinstance(arg, (build.CustomTarget, build.BuildTarget)):
continue
result[arg.get_id()] = arg
return result
def get_custom_target_provided_libraries(self, target):
libs = []
for t in target.get_generated_sources():
if not isinstance(t, build.CustomTarget):
continue
for f in t.get_outputs():
if self.environment.is_library(f):
libs.append(os.path.join(self.get_target_dir(t), f))
return libs
def is_unity(self, target):
optval = self.get_option_for_target('unity', target)
if optval == 'on' or (optval == 'subprojects' and target.subproject != ''):
return True
return False
def get_custom_target_sources(self, target):
'''
Custom target sources can be of various object types; strings, File,
BuildTarget, even other CustomTargets.
Returns the path to them relative to the build root directory.
'''
srcs = []
for i in target.get_sources():
if hasattr(i, 'held_object'):
i = i.held_object
if isinstance(i, str):
fname = [os.path.join(self.build_to_src, target.subdir, i)]
elif isinstance(i, build.BuildTarget):
fname = [self.get_target_filename(i)]
elif isinstance(i, build.CustomTarget):
fname = [os.path.join(self.get_target_dir(i), p) for p in i.get_outputs()]
elif isinstance(i, build.GeneratedList):
fname = [os.path.join(self.get_target_private_dir(target), p) for p in i.get_outputs()]
else:
fname = [i.rel_to_builddir(self.build_to_src)]
if target.absolute_paths:
fname = [os.path.join(self.environment.get_build_dir(), f) for f in fname]
srcs += fname
return srcs
def get_custom_target_depend_files(self, target, absolute_paths=False):
deps = []
for i in target.depend_files:
if isinstance(i, mesonlib.File):
if absolute_paths:
deps.append(i.absolute_path(self.environment.get_source_dir(),
self.environment.get_build_dir()))
else:
deps.append(i.rel_to_builddir(self.build_to_src))
else:
if absolute_paths:
deps.append(os.path.join(self.environment.get_source_dir(), target.subdir, i))
else:
deps.append(os.path.join(self.build_to_src, target.subdir, i))
return deps
def eval_custom_target_command(self, target, absolute_outputs=False):
# We want the outputs to be absolute only when using the VS backend
# XXX: Maybe allow the vs backend to use relative paths too?
source_root = self.build_to_src
build_root = '.'
outdir = self.get_target_dir(target)
if absolute_outputs:
source_root = self.environment.get_source_dir()
build_root = self.environment.get_source_dir()
outdir = os.path.join(self.environment.get_build_dir(), outdir)
outputs = []
for i in target.get_outputs():
outputs.append(os.path.join(outdir, i))
inputs = self.get_custom_target_sources(target)
# Evaluate the command list
cmd = []
for i in target.command:
if isinstance(i, build.Executable):
cmd += self.exe_object_to_cmd_array(i)
continue
elif isinstance(i, build.CustomTarget):
# GIR scanner will attempt to execute this binary but
# it assumes that it is in path, so always give it a full path.
tmp = i.get_outputs()[0]
i = os.path.join(self.get_target_dir(i), tmp)
elif isinstance(i, mesonlib.File):
i = i.rel_to_builddir(self.build_to_src)
if target.absolute_paths:
i = os.path.join(self.environment.get_build_dir(), i)
# FIXME: str types are blindly added ignoring 'target.absolute_paths'
# because we can't know if they refer to a file or just a string
elif not isinstance(i, str):
err_msg = 'Argument {0} is of unknown type {1}'
raise RuntimeError(err_msg.format(str(i), str(type(i))))
elif '@SOURCE_ROOT@' in i:
i = i.replace('@SOURCE_ROOT@', source_root)
elif '@BUILD_ROOT@' in i:
i = i.replace('@BUILD_ROOT@', build_root)
elif '@DEPFILE@' in i:
if target.depfile is None:
msg = 'Custom target {!r} has @DEPFILE@ but no depfile ' \
'keyword argument.'.format(target.name)
raise MesonException(msg)
dfilename = os.path.join(outdir, target.depfile)
i = i.replace('@DEPFILE@', dfilename)
elif '@PRIVATE_OUTDIR_' in i:
match = re.search('@PRIVATE_OUTDIR_(ABS_)?([^/\s*]*)@', i)
if not match:
msg = 'Custom target {!r} has an invalid argument {!r}' \
''.format(target.name, i)
raise MesonException(msg)
source = match.group(0)
if match.group(1) is None and not target.absolute_paths:
lead_dir = ''
else:
lead_dir = self.environment.get_build_dir()
i = i.replace(source, os.path.join(lead_dir, outdir))
cmd.append(i)
# Substitute the rest of the template strings
values = mesonlib.get_filenames_templates_dict(inputs, outputs)
cmd = mesonlib.substitute_values(cmd, values)
# This should not be necessary but removing it breaks
# building GStreamer on Windows. The underlying issue
# is problems with quoting backslashes on Windows
# which is the seventh circle of hell. The downside is
# that this breaks custom targets whose command lines
# have backslashes. If you try to fix this be sure to
# check that it does not break GST.
#
# The bug causes file paths such as c:\foo to get escaped
# into c:\\foo.
#
# Unfortunately we have not been able to come up with an
# isolated test case for this so unless you manage to come up
# with one, the only way is to test the building with Gst's
# setup. Note this in your MR or ping us and we will get it
# fixed.
#
# https://github.com/mesonbuild/meson/pull/737
cmd = [i.replace('\\', '/') for i in cmd]
return inputs, outputs, cmd
def run_postconf_scripts(self):
env = {'MESON_SOURCE_ROOT': self.environment.get_source_dir(),
'MESON_BUILD_ROOT': self.environment.get_build_dir(),
'MESONINTROSPECT': ' '.join([shlex.quote(x) for x in self.environment.get_build_command() + ['introspect']]),
}
child_env = os.environ.copy()
child_env.update(env)
for s in self.build.postconf_scripts:
cmd = s['exe'] + s['args']
subprocess.check_call(cmd, env=child_env)