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#!/usr/bin/env python
#
# Copyright 2001 Google Inc. All Rights Reserved.
#
# 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.
"""Script that generates the build.ninja for ninja itself.
Projects that use ninja themselves should either write a similar script
or use a meta-build system that supports Ninja output."""
from optparse import OptionParser
import os
import sys
sys.path.insert(0, 'misc')
import ninja_syntax
parser = OptionParser()
platforms = ['linux', 'freebsd', 'solaris', 'mingw', 'windows']
profilers = ['gmon', 'pprof']
parser.add_option('--platform',
help='target platform (' + '/'.join(platforms) + ')',
choices=platforms)
parser.add_option('--host',
help='host platform (' + '/'.join(platforms) + ')',
choices=platforms)
parser.add_option('--debug', action='store_true',
help='enable debugging extras',)
parser.add_option('--profile', metavar='TYPE',
choices=profilers,
help='enable profiling (' + '/'.join(profilers) + ')',)
parser.add_option('--with-gtest', metavar='PATH',
help='use gtest unpacked in directory PATH')
parser.add_option('--with-python', metavar='EXE',
help='use EXE as the Python interpreter',
default=os.path.basename(sys.executable))
parser.add_option('--with-ninja', metavar='NAME',
help="name for ninja binary for -t msvc (MSVC only)",
default="ninja")
(options, args) = parser.parse_args()
if args:
print 'ERROR: extra unparsed command-line arguments:', args
sys.exit(1)
platform = options.platform
if platform is None:
platform = sys.platform
if platform.startswith('linux'):
platform = 'linux'
elif platform.startswith('freebsd'):
platform = 'freebsd'
elif platform.startswith('solaris'):
platform = 'solaris'
elif platform.startswith('mingw'):
platform = 'mingw'
elif platform.startswith('win'):
platform = 'windows'
host = options.host or platform
BUILD_FILENAME = 'build.ninja'
buildfile = open(BUILD_FILENAME, 'w')
n = ninja_syntax.Writer(buildfile)
n.comment('This file is used to build ninja itself.')
n.comment('It is generated by ' + os.path.basename(__file__) + '.')
n.newline()
n.comment('The arguments passed to configure.py, for rerunning it.')
n.variable('configure_args', ' '.join(sys.argv[1:]))
env_keys = set(['CXX', 'AR', 'CFLAGS', 'LDFLAGS'])
configure_env = dict((k, os.environ[k]) for k in os.environ if k in env_keys)
if configure_env:
config_str = ' '.join([k + '=' + configure_env[k] for k in configure_env])
n.variable('configure_env', config_str + '$ ')
n.newline()
CXX = configure_env.get('CXX', 'g++')
objext = '.o'
if platform == 'windows':
CXX = 'cl'
objext = '.obj'
def src(filename):
return os.path.join('src', filename)
def built(filename):
return os.path.join('$builddir', filename)
def doc(filename):
return os.path.join('doc', filename)
def cc(name, **kwargs):
return n.build(built(name + objext), 'cxx', src(name + '.c'), **kwargs)
def cxx(name, **kwargs):
return n.build(built(name + objext), 'cxx', src(name + '.cc'), **kwargs)
def binary(name):
if platform in ('mingw', 'windows'):
exe = name + '.exe'
n.build(name, 'phony', exe)
return exe
return name
n.variable('builddir', 'build')
n.variable('cxx', CXX)
if platform == 'windows':
n.variable('ar', 'link')
else:
n.variable('ar', configure_env.get('AR', 'ar'))
if platform == 'windows':
cflags = ['/nologo', # Don't print startup banner.
'/Zi', # Create pdb with debug info.
'/W4', # Highest warning level.
'/WX', # Warnings as errors.
'/wd4530', '/wd4100', '/wd4706',
'/wd4512', '/wd4800', '/wd4702', '/wd4819',
# Disable warnings about passing "this" during initialization.
'/wd4355',
'/GR-', # Disable RTTI.
# Disable size_t -> int truncation warning.
# We never have strings or arrays larger than 2**31.
'/wd4267',
'/DNOMINMAX', '/D_CRT_SECURE_NO_WARNINGS',
'/DNINJA_PYTHON="%s"' % options.with_python]
ldflags = ['/DEBUG', '/libpath:$builddir']
if not options.debug:
cflags += ['/Ox', '/DNDEBUG', '/GL']
ldflags += ['/LTCG', '/OPT:REF', '/OPT:ICF']
else:
cflags = ['-g', '-Wall', '-Wextra',
'-Wno-deprecated',
'-Wno-unused-parameter',
'-fno-rtti',
'-fno-exceptions',
'-fvisibility=hidden', '-pipe',
'-Wno-missing-field-initializers',
'-DNINJA_PYTHON="%s"' % options.with_python]
if options.debug:
cflags += ['-D_GLIBCXX_DEBUG', '-D_GLIBCXX_DEBUG_PEDANTIC']
cflags.remove('-fno-rtti') # Needed for above pedanticness.
else:
cflags += ['-O2', '-DNDEBUG']
if 'clang' in os.path.basename(CXX):
cflags += ['-fcolor-diagnostics']
if platform == 'mingw':
cflags += ['-D_WIN32_WINNT=0x0501']
ldflags = ['-L$builddir']
libs = []
if platform == 'mingw':
cflags.remove('-fvisibility=hidden');
ldflags.append('-static')
elif platform == 'sunos5':
cflags.remove('-fvisibility=hidden')
elif platform == 'windows':
pass
else:
if options.profile == 'gmon':
cflags.append('-pg')
ldflags.append('-pg')
elif options.profile == 'pprof':
libs.append('-lprofiler')
def shell_escape(str):
"""Escape str such that it's interpreted as a single argument by the shell."""
# This isn't complete, but it's just enough to make NINJA_PYTHON work.
if platform in ('windows', 'mingw'):
return str
if '"' in str:
return "'%s'" % str.replace("'", "\\'")
return str
if 'CFLAGS' in configure_env:
cflags.append(configure_env['CFLAGS'])
n.variable('cflags', ' '.join(shell_escape(flag) for flag in cflags))
if 'LDFLAGS' in configure_env:
ldflags.append(configure_env['LDFLAGS'])
n.variable('ldflags', ' '.join(shell_escape(flag) for flag in ldflags))
n.newline()
if platform == 'windows':
compiler = '$cxx'
if options.with_ninja:
compiler = ('%s -t msvc -o $out -- $cxx /showIncludes' %
options.with_ninja)
n.rule('cxx',
command='%s $cflags -c $in /Fo$out' % compiler,
depfile='$out.d',
description='CXX $out')
else:
n.rule('cxx',
command='$cxx -MMD -MT $out -MF $out.d $cflags -c $in -o $out',
depfile='$out.d',
description='CXX $out')
n.newline()
if host == 'windows':
n.rule('ar',
command='lib /nologo /ltcg /out:$out $in',
description='LIB $out')
elif host == 'mingw':
n.rule('ar',
command='cmd /c $ar cqs $out.tmp $in && move /Y $out.tmp $out',
description='AR $out')
else:
n.rule('ar',
command='rm -f $out && $ar crs $out $in',
description='AR $out')
n.newline()
if platform == 'windows':
n.rule('link',
command='$cxx $in $libs /nologo /link $ldflags /out:$out',
description='LINK $out')
else:
n.rule('link',
command='$cxx $ldflags -o $out $in $libs',
description='LINK $out')
n.newline()
objs = []
if platform not in ('solaris', 'mingw', 'windows'):
n.comment('browse_py.h is used to inline browse.py.')
n.rule('inline',
command='src/inline.sh $varname < $in > $out',
description='INLINE $out')
n.build(built('browse_py.h'), 'inline', src('browse.py'),
implicit='src/inline.sh',
variables=[('varname', 'kBrowsePy')])
n.newline()
objs += cxx('browse', order_only=built('browse_py.h'))
n.newline()
n.comment('the depfile parser and ninja lexers are generated using re2c.')
def has_re2c():
import subprocess
try:
proc = subprocess.Popen(['re2c', '-V'], stdout=subprocess.PIPE)
return int(proc.communicate()[0], 10) >= 1103
except OSError:
return False
if has_re2c():
n.rule('re2c',
command='re2c -b -i --no-generation-date -o $out $in',
description='RE2C $out')
# Generate the .cc files in the source directory so we can check them in.
n.build(src('depfile_parser.cc'), 're2c', src('depfile_parser.in.cc'))
n.build(src('lexer.cc'), 're2c', src('lexer.in.cc'))
else:
print ("warning: A compatible version of re2c (>= 0.11.3) was not found; "
"changes to src/*.in.cc will not affect your build.")
n.newline()
n.comment('Core source files all build into ninja library.')
for name in ['build',
'build_log',
'clean',
'depfile_parser',
'disk_interface',
'edit_distance',
'eval_env',
'explain',
'graph',
'graphviz',
'lexer',
'manifest_parser',
'metrics',
'state',
'util']:
objs += cxx(name)
if platform in ('mingw', 'windows'):
for name in ['subprocess-win32',
'includes_normalize-win32',
'msvc_helper-win32',
'msvc_helper_main-win32']:
objs += cxx(name)
if platform == 'windows':
objs += cxx('minidump-win32')
objs += cc('getopt')
else:
objs += cxx('subprocess-posix')
if platform == 'windows':
ninja_lib = n.build(built('ninja.lib'), 'ar', objs)
else:
ninja_lib = n.build(built('libninja.a'), 'ar', objs)
n.newline()
if platform == 'windows':
libs.append('ninja.lib')
else:
libs.append('-lninja')
all_targets = []
n.comment('Main executable is library plus main() function.')
objs = cxx('ninja')
ninja = n.build(binary('ninja'), 'link', objs, implicit=ninja_lib,
variables=[('libs', libs)])
n.newline()
all_targets += ninja
n.comment('Tests all build into ninja_test executable.')
variables = []
test_cflags = None
test_ldflags = None
test_libs = libs
objs = []
if options.with_gtest:
path = options.with_gtest
gtest_all_incs = '-I%s -I%s' % (path, os.path.join(path, 'include'))
if platform == 'windows':
gtest_cflags = '/nologo /EHsc /Zi ' + gtest_all_incs
else:
gtest_cflags = '-fvisibility=hidden ' + gtest_all_incs
objs += n.build(built('gtest-all' + objext), 'cxx',
os.path.join(path, 'src', 'gtest-all.cc'),
variables=[('cflags', gtest_cflags)])
objs += n.build(built('gtest_main' + objext), 'cxx',
os.path.join(path, 'src', 'gtest_main.cc'),
variables=[('cflags', gtest_cflags)])
test_cflags = cflags + ['-DGTEST_HAS_RTTI=0',
'-I%s' % os.path.join(path, 'include')]
elif platform == 'windows':
test_libs.extend(['gtest_main.lib', 'gtest.lib'])
else:
test_libs.extend(['-lgtest_main', '-lgtest'])
for name in ['build_log_test',
'build_test',
'clean_test',
'depfile_parser_test',
'disk_interface_test',
'edit_distance_test',
'graph_test',
'lexer_test',
'manifest_parser_test',
'state_test',
'subprocess_test',
'test',
'util_test']:
objs += cxx(name, variables=[('cflags', test_cflags)])
if platform in ('windows', 'mingw'):
for name in ['includes_normalize_test', 'msvc_helper_test']:
objs += cxx(name, variables=[('cflags', test_cflags)])
if platform != 'mingw' and platform != 'windows':
test_libs.append('-lpthread')
ninja_test = n.build(binary('ninja_test'), 'link', objs, implicit=ninja_lib,
variables=[('ldflags', test_ldflags),
('libs', test_libs)])
n.newline()
all_targets += ninja_test
n.comment('Ancilliary executables.')
objs = cxx('parser_perftest')
all_targets += n.build(binary('parser_perftest'), 'link', objs,
implicit=ninja_lib, variables=[('libs', libs)])
objs = cxx('build_log_perftest')
all_targets += n.build(binary('build_log_perftest'), 'link', objs,
implicit=ninja_lib, variables=[('libs', libs)])
objs = cxx('canon_perftest')
all_targets += n.build(binary('canon_perftest'), 'link', objs,
implicit=ninja_lib, variables=[('libs', libs)])
objs = cxx('hash_collision_bench')
all_targets += n.build(binary('hash_collision_bench'), 'link', objs,
implicit=ninja_lib, variables=[('libs', libs)])
n.newline()
n.comment('Generate a graph using the "graph" tool.')
n.rule('gendot',
command='./ninja -t graph all > $out')
n.rule('gengraph',
command='dot -Tpng $in > $out')
dot = n.build(built('graph.dot'), 'gendot', ['ninja', 'build.ninja'])
n.build('graph.png', 'gengraph', dot)
n.newline()
n.comment('Generate the manual using asciidoc.')
n.rule('asciidoc',
command='asciidoc -a toc -a max-width=45em -o $out $in',
description='ASCIIDOC $in')
manual = n.build(doc('manual.html'), 'asciidoc', doc('manual.asciidoc'))
n.build('manual', 'phony',
order_only=manual)
n.newline()
n.comment('Generate Doxygen.')
n.rule('doxygen',
command='doxygen $in',
description='DOXYGEN $in')
n.variable('doxygen_mainpage_generator',
src('gen_doxygen_mainpage.sh'))
n.rule('doxygen_mainpage',
command='$doxygen_mainpage_generator $in > $out',
description='DOXYGEN_MAINPAGE $out')
mainpage = n.build(built('doxygen_mainpage'), 'doxygen_mainpage',
['README', 'COPYING'],
implicit=['$doxygen_mainpage_generator'])
n.build('doxygen', 'doxygen', doc('doxygen.config'),
implicit=mainpage)
n.newline()
if host != 'mingw':
n.comment('Regenerate build files if build script changes.')
n.rule('configure',
command='${configure_env}%s configure.py $configure_args' %
options.with_python,
generator=True)
n.build('build.ninja', 'configure',
implicit=['configure.py', os.path.normpath('misc/ninja_syntax.py')])
n.newline()
n.default(ninja)
n.newline()
if host == 'linux':
n.comment('Packaging')
n.rule('rpmbuild',
command="misc/packaging/rpmbuild.sh",
description='Building rpms..')
n.build('rpm', 'rpmbuild')
n.newline()
n.build('all', 'phony', all_targets)
print 'wrote %s.' % BUILD_FILENAME
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