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[waf] Add --variant={debug,release} (#129)
./waf build => build/app ./waf build --variant=debug => build/debug/app ./waf build --variant=release => build/release/app TODO Make --variant default to 'release', rename `app` to `bin/cquery`, and disallow empty variant
This commit is contained in:
Fangrui Song
GitHub
parent
86cc50e27f
commit
60febe6e9d
87
wscript
87
wscript
@ -50,6 +50,9 @@ def options(opt):
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help='specify path to llvm-config for automatic configuration [default: %default]')
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grp.add_option('--clang-prefix', dest='clang_prefix', default='',
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help='enable fallback configuration method by specifying a clang installation prefix (e.g. /opt/llvm)')
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# TODO Default to 'release' and disallow empty variant
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grp.add_option('--variant', default='',
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help='variant name for saving configuration and build results. Variants other than "debug" turn on -O3')
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def download_and_extract(destdir, url):
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dest = destdir + '.tar.xz'
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@ -73,45 +76,54 @@ def download_and_extract(destdir, url):
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else:
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print('Found extracted at {0}'.format(destdir))
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def configure(conf):
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conf.load('compiler_cxx')
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conf.check(header_name='stdio.h', features='cxx cxxprogram', mandatory=True)
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conf.load('clang_compilation_database', tooldir='.')
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def configure(ctx):
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ctx.resetenv(ctx.options.variant)
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conf.env['use_system_clang'] = conf.options.use_system_clang
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if conf.options.use_system_clang:
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ctx.load('compiler_cxx')
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cxxflags = ['-g', '-std=c++11', '-Wall', '-Wno-sign-compare', '-Werror']
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if ctx.options.variant == 'debug':
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ctx.env.CXXFLAGS = cxxflags
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else:
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ctx.env.CXXFLAGS = cxxflags + ['-O3']
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ctx.check(header_name='stdio.h', features='cxx cxxprogram', mandatory=True)
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ctx.load('clang_compilation_database', tooldir='.')
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ctx.env['use_system_clang'] = ctx.options.use_system_clang
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if ctx.options.use_system_clang:
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# Ask llvm-config for cflags and ldflags
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conf.find_program(conf.options.llvm_config, msg='checking for llvm-config', var='LLVM_CONFIG', mandatory=False)
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if conf.env.LLVM_CONFIG:
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conf.check_cfg(msg='Checking for clang flags',
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path=conf.env.LLVM_CONFIG,
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ctx.find_program(ctx.options.llvm_config, msg='checking for llvm-config', var='LLVM_CONFIG', mandatory=False)
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if ctx.env.LLVM_CONFIG:
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ctx.check_cfg(msg='Checking for clang flags',
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path=ctx.env.LLVM_CONFIG,
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package='',
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uselib_store='clang',
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args='--cppflags --ldflags')
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# llvm-config does not provide the actual library we want so we check for it
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# using the provided info so far.
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conf.check_cxx(lib='clang', uselib_store='clang', use='clang')
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ctx.check_cxx(lib='clang', uselib_store='clang', use='clang')
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else: # Fallback method using a prefix path
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conf.start_msg('Checking for clang prefix')
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if not conf.options.clang_prefix:
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raise conf.errors.ConfigurationError('not found (--clang-prefix must be specified when llvm-config is not found)')
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ctx.start_msg('Checking for clang prefix')
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if not ctx.options.clang_prefix:
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raise ctx.errors.ConfigurationError('not found (--clang-prefix must be specified when llvm-config is not found)')
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prefix = conf.root.find_node(conf.options.clang_prefix)
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prefix = ctx.root.find_node(ctx.options.clang_prefix)
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if not prefix:
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raise conf.errors.ConfigurationError('clang prefix not found: "%s"'%conf.options.clang_prefix)
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raise ctx.errors.ConfigurationError('clang prefix not found: "%s"'%ctx.options.clang_prefix)
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conf.end_msg(prefix)
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ctx.end_msg(prefix)
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includes = [ n.abspath() for n in [ prefix.find_node('include') ] if n ]
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libpath = [ n.abspath() for n in [ prefix.find_node(l) for l in ('lib', 'lib64')] if n ]
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conf.check_cxx(msg='Checking for library clang', lib='clang', uselib_store='clang', includes=includes, libpath=libpath)
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ctx.check_cxx(msg='Checking for library clang', lib='clang', uselib_store='clang', includes=includes, libpath=libpath)
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else:
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global CLANG_TARBALL_NAME
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# TODO Remove these after dropping clang 4 (after we figure out how to index Chrome)
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if conf.options.bundled_clang[0] == '4':
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if ctx.options.bundled_clang[0] == '4':
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if sys.platform == 'darwin':
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CLANG_TARBALL_NAME = 'clang+llvm-$version-x86_64-apple-darwin'
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elif sys.platform.startswith('linux'):
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@ -122,23 +134,23 @@ def configure(conf):
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sys.stderr.write('ERROR: Unknown platform {0}\n'.format(sys.platform))
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sys.exit(1)
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CLANG_TARBALL_NAME = string.Template(CLANG_TARBALL_NAME).substitute(version=conf.options.bundled_clang)
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CLANG_TARBALL_NAME = string.Template(CLANG_TARBALL_NAME).substitute(version=ctx.options.bundled_clang)
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# Directory clang has been extracted to.
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CLANG_DIRECTORY = '{0}/{1}'.format(out, CLANG_TARBALL_NAME)
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# URL of the tarball to download.
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CLANG_TARBALL_URL = 'http://releases.llvm.org/{0}/{1}.tar.xz'.format(conf.options.bundled_clang, CLANG_TARBALL_NAME)
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CLANG_TARBALL_URL = 'http://releases.llvm.org/{0}/{1}.tar.xz'.format(ctx.options.bundled_clang, CLANG_TARBALL_NAME)
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print('Checking for clang')
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download_and_extract(CLANG_DIRECTORY, CLANG_TARBALL_URL)
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clang_node = conf.path.find_dir(CLANG_DIRECTORY)
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clang_node = ctx.path.find_dir(CLANG_DIRECTORY)
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conf.check_cxx(uselib_store='clang',
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includes=clang_node.find_dir('include').abspath(),
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libpath=clang_node.find_dir('lib').abspath(),
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lib='clang')
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ctx.check_cxx(uselib_store='clang',
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includes=clang_node.find_dir('include').abspath(),
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libpath=clang_node.find_dir('lib').abspath(),
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lib='clang')
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conf.msg('Clang includes', conf.env.INCLUDES_clang)
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conf.msg('Clang library dir', conf.env.LIBPATH_clang)
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ctx.msg('Clang includes', ctx.env.INCLUDES_clang)
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ctx.msg('Clang library dir', ctx.env.LIBPATH_clang)
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"""
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# Download and save the compressed tarball as |compressed_file_name|.
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@ -163,8 +175,6 @@ def configure(conf):
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"""
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def build(bld):
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# todo: configure vars
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cc_files = bld.path.ant_glob(['src/*.cc', 'src/messages/*.cc'])
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lib = []
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@ -178,7 +188,6 @@ def build(bld):
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bld.program(
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source=cc_files,
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use='clang',
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cxxflags=['-g', '-O3', '-std=c++11', '-Wall', '-Wno-sign-compare', '-Werror'],
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includes=[
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'src/',
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'third_party/',
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@ -207,3 +216,19 @@ def build(bld):
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# bld.check(header_name='sadlib.h', features='cxx cxxprogram', mandatory=False)
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# bld.logger = None
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def init(ctx):
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from waflib.Build import BuildContext, CleanContext, InstallContext, UninstallContext
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for y in (BuildContext, CleanContext, InstallContext, UninstallContext):
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class tmp(y):
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variant = ctx.options.variant
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# This is needed because waf initializes the ConfigurationContext with
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# an arbitrary setenv('') which would rewrite the previous configuration
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# cache for the default variant if the configure step finishes.
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# Ideally ConfigurationContext should just let us override this at class
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# level like the other Context subclasses do with variant
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from waflib.Configure import ConfigurationContext
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class cctx(ConfigurationContext):
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def resetenv(self, name):
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self.all_envs = {}
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self.setenv(name)
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