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[waf] Simplify
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@MaskRay
MaskRay committed Feb 2, 2018
1 parent 85eee32 commit 5965eba
Showing 1 changed file with 64 additions and 62 deletions.
126 changes: 64 additions & 62 deletions wscript
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Original file line number Diff line number Diff line change
Expand Up @@ -191,6 +191,7 @@ def configure(ctx):
print((('!' * 50)+'\n')*3)
print('--use-system-clang is deprecated. Please specify --llvm-config, e.g. /usr/bin/llvm-config llvm-config-6.0')

# Do not use bundled clang+llvm
if ctx.options.llvm_config is not None:
# Ask llvm-config for cflags and ldflags
ctx.find_program(ctx.options.llvm_config, msg='checking for llvm-config', var='LLVM_CONFIG', mandatory=False)
Expand All @@ -215,6 +216,38 @@ def configure(ctx):
# using the provided info so far.
ctx.check_cxx(lib=libname('clang'), uselib_store='clang', use='clang')

# If the user passed `--llvm-config=` (setting `llvm-config` to
# the empty string) to the configure phase, we should not try to
# run it.
if len(ctx.options.llvm_config):
ctx.env.rpath = [str(subprocess.check_output(
[ctx.options.llvm_config, '--libdir'],
stderr=subprocess.STDOUT).decode()).strip()]
else:
ctx.env.rpath = []

# Use CXX set by --check-cxx-compiler if it is "clang".
# See https://github.com/jacobdufault/cquery/issues/237
clang = ctx.env.get_flat('CXX')
if 'clang' not in clang:
# Otherwise, infer the clang executable path with llvm-config --bindir
output = str(subprocess.check_output(
[ctx.options.llvm_config, '--bindir'],
stderr=subprocess.STDOUT).decode()).strip()
clang = os.path.join(output, 'clang')

# Use the detected clang executable to infer resource directory
# Use `clang -### -xc /dev/null` instead of `clang -print-resource-dir` because the option is unavailable in 4.0.0
devnull = '/dev/null' if sys.platform != 'win32' else 'NUL'
output = subprocess.check_output(
[clang, '-###', '-xc', devnull],
stderr=subprocess.STDOUT).decode()
match = re.search(r'"-resource-dir" "([^"]*)"', output, re.M)
if match:
ctx.env.default_resource_directory = match.group(1)
else:
bld.fatal("Failed to found system clang resource directory.")

else:
global CLANG_TARBALL_NAME, CLANG_TARBALL_EXT

Expand Down Expand Up @@ -258,6 +291,31 @@ def configure(ctx):
libpath=clang_node.find_dir('lib').abspath(),
lib=libname('clang'))

clang_tarball_name = os.path.basename(os.path.dirname(ctx.env['LIBPATH_clang'][0]))
ctx.env.clang_tarball_name = clang_tarball_name
ctx.env.default_resource_directory = '../lib/{}/lib/clang/{}'.format(clang_tarball_name, ctx.env.bundled_clang)

if sys.platform.startswith('freebsd') or sys.platform.startswith('linux'):
ctx.env.rpath = ['$ORIGIN/../lib/' + clang_tarball_name + '/lib']
elif sys.platform == 'darwin':
ctx.env.rpath = ['@loader_path/../lib/' + clang_tarball_name + '/lib']
elif sys.platform == 'win32':
ctx.env.rpath = [] # Unsupported
name = os.path.basename(os.path.dirname(ctx.env['LIBPATH_clang'][0]))
# Poor Windows users' RPATH
out_clang_dll = os.path.join(ctx.path.get_bld().abspath(), 'bin', 'libclang.dll')
try:
os.makedirs(os.path.dirname(out_clang_dll))
except OSError:
pass
try:
dst = os.path.join(ctx.path.get_bld().abspath(), 'lib', name, 'bin', 'libclang.dll')
os.symlink(dst, out_clang_dll)
except (OSError, NotImplementedError):
shutil.copy(dst, out_clang_dll)
else:
ctx.env.rpath = ctx.env['LIBPATH_clang']

ctx.msg('Clang includes', ctx.env.INCLUDES_clang)
ctx.msg('Clang library dir', ctx.env.LIBPATH_clang)

Expand Down Expand Up @@ -306,64 +364,6 @@ def build(bld):

lib.append('ncurses')

if bld.env['use_system_clang']:
# If the user passed `--llvm-config=` (setting `llvm-config` to
# the empty string) to the configure phase, we should not try to
# run it.
if bld.env['llvm_config']:
rpath = str(subprocess.check_output(
[bld.env['llvm_config'], '--libdir'],
stderr=subprocess.STDOUT).decode()).strip()
else:
rpath = []

# Use CXX set by --check-cxx-compiler if it is "clang".
# See https://github.com/jacobdufault/cquery/issues/237
clang = bld.env.get_flat('CXX')
if 'clang' not in clang:
# Otherwise, infer the clang executable path with llvm-config --bindir
output = str(subprocess.check_output(
[bld.env['llvm_config'], '--bindir'],
stderr=subprocess.STDOUT).decode()).strip()
clang = os.path.join(output, 'clang')

# Use the detected clang executable to infer resource directory
# Use `clang -### -xc /dev/null` instead of `clang -print-resource-dir` because the option is unavailable in 4.0.0
devnull = '/dev/null' if sys.platform != 'win32' else 'NUL'
output = subprocess.check_output(
[clang, '-###', '-xc', devnull],
stderr=subprocess.STDOUT).decode()
match = re.search(r'"-resource-dir" "([^"]*)"', output, re.M)
if match:
default_resource_directory = match.group(1)
else:
bld.fatal("Failed to found system clang resource directory.")

else:
clang_tarball_name = os.path.basename(os.path.dirname(bld.env['LIBPATH_clang'][0]))
default_resource_directory = '../lib/{}/lib/clang/{}'.format(clang_tarball_name, bld.env['bundled_clang'])

if sys.platform.startswith('freebsd') or sys.platform.startswith('linux'):
rpath = '$ORIGIN/../lib/' + clang_tarball_name + '/lib'
elif sys.platform == 'darwin':
rpath = '@loader_path/../lib/' + clang_tarball_name + '/lib'
elif sys.platform == 'win32':
rpath = [] # Unsupported
name = os.path.basename(os.path.dirname(bld.env['LIBPATH_clang'][0]))
# Poor Windows users' RPATH
out_clang_dll = os.path.join(bld.path.get_bld().abspath(), 'bin', 'libclang.dll')
try:
os.makedirs(os.path.dirname(out_clang_dll))
except OSError:
pass
try:
dst = os.path.join(bld.path.get_bld().abspath(), 'lib', name, 'bin', 'libclang.dll')
os.symlink(dst, out_clang_dll)
except (OSError, NotImplementedError):
shutil.copy(dst, out_clang_dll)
else:
rpath = bld.env['LIBPATH_clang']

# FIXME Figure out how to mix C and C++ source files and change it back to .c
bld.objects(name='siphash', source='third_party/siphash.cc')

Expand All @@ -384,17 +384,19 @@ def build(bld):
'LOGURU_WITH_STREAMS=1',
'LOGURU_FILENAME_WIDTH=18',
'LOGURU_THREADNAME_WIDTH=13',
'DEFAULT_RESOURCE_DIRECTORY="' + default_resource_directory + '"'] +
'DEFAULT_RESOURCE_DIRECTORY="' + bld.env.get_flat('default_resource_directory') + '"'] +
(['USE_CLANG_CXX=1', 'LOGURU_RTTI=0']
if bld.env['use_clang_cxx']
else []),
lib=lib,
rpath=rpath,
rpath=bld.env.rpath,
target='bin/cquery')

if not bld.env['use_system_clang'] and sys.platform != 'win32':
bld.install_files('${PREFIX}/lib/' + clang_tarball_name + '/lib', bld.path.get_bld().ant_glob('lib/' + clang_tarball_name + '/lib/libclang.(dylib|so.[4-9])', quiet=True))
#from IPython import embed; embed()
if not bld.env.llvm_config and sys.platform != 'win32':
clang_tarball_name = bld.env.clang_tarball_name
if bld.cmd == 'install':
bld.install_files('${PREFIX}/lib/' + clang_tarball_name + '/lib', bld.path.get_bld().ant_glob('lib/' + clang_tarball_name + '/lib/libclang.(dylib|so.[4-9])', quiet=True))
# TODO This may be cached and cannot be re-triggered. Use proper shell escape.
bld(rule='rsync -rtR {}/./lib/{}/lib/clang/*/include {}/'.format(bld.path.get_bld(), clang_tarball_name, bld.env['PREFIX']))

Expand Down

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