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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', 'mingw', 'windows']
parser.add_option('--platform',
help='target platform (' + '/'.join(platforms) + ')',
choices=platforms)
parser.add_option('--debug', action='store_true',
help='enable debugging flags',)
parser.add_option('--profile', action='store_true',
help='enable profiling',)
(options, args) = parser.parse_args()
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('mingw'):
platform = 'mingw'
elif platform.startswith('win'):
platform = 'windows'
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()
def src(filename):
return os.path.join('src', filename)
def built(filename):
return os.path.join('$builddir', filename)
def doc(filename):
return os.path.join('doc', filename)
def cxx(name, **kwargs):
return n.build(built(name + '.o'), 'cxx', src(name + '.cc'), **kwargs)
n.variable('builddir', 'build')
cflags = ['-g', '-Wall', '-Wno-deprecated', '-fno-exceptions',
'-fvisibility=hidden', '-pipe']
if not options.debug:
cflags.append('-O2')
ldflags = []
if platform == 'mingw':
n.variable('cxx', 'i586-mingw32msvc-c++')
# "warning: visibility attribute not supported in this
# configuration; ignored"
cflags.remove('-fvisibility=hidden')
cflags.append('-Igtest-1.6.0/include')
ldflags.append('-Lgtest-1.6.0/lib/.libs')
else:
n.variable('cxx', os.environ.get('CXX', 'g++'))
if options.profile:
cflags.append('-pg')
ldflags.append('-pg')
if 'CFLAGS' in os.environ:
cflags.append(os.environ['CFLAGS'])
n.variable('cflags', ' '.join(cflags))
if 'LDFLAGS' in os.environ:
ldflags.append(os.environ['LDFLAGS'])
n.variable('ldflags', ' '.join(ldflags))
n.newline()
n.rule('cxx',
command='$cxx -MMD -MF $out.d $cflags -c $in -o $out',
depfile='$out.d',
description='CXX $out')
n.newline()
ar = 'ar'
if platform == 'mingw':
ar = 'i586-mingw32msvc-ar'
n.rule('ar',
command=ar + ' crs $out $in',
description='AR $out')
n.newline()
n.rule('link',
command='$cxx $ldflags -o $out $in $libs',
description='LINK $out')
n.newline()
objs = []
if platform not in ('mingw'):
n.comment('browse_py.h is used to inline browse.py.')
n.rule('inline',
command='src/inline.sh $varname < $in > $out',
description='INLINE $out')
n.build(built('browse_py.h'), 'inline', src('browse.py'),
variables=[('varname', 'kBrowsePy')])
n.newline()
n.comment("TODO: this shouldn't need to depend on inline.sh.")
objs += cxx('browse',
implicit='src/inline.sh',
order_only=built('browse_py.h'))
n.newline()
n.comment('Core source files all build into ninja library.')
for name in ['build', 'build_log', 'clean', 'eval_env', 'graph', 'graphviz',
'parsers', 'util', 'stat_cache', 'disk_interface', 'state']:
objs += cxx(name)
if platform == 'mingw':
objs += cxx('subprocess-win32')
else:
objs += cxx('subprocess')
ninja_lib = n.build(built('libninja.a'), 'ar', objs)
n.newline()
n.comment('Main executable is library plus main() function.')
objs = cxx('ninja')
n.build('ninja', 'link', objs, implicit=ninja_lib,
variables=[('libs', '-L$builddir -lninja')])
n.newline()
n.comment('Tests all build into ninja_test executable.')
objs = []
for name in ['build_test', 'build_log_test', 'graph_test', 'ninja_test',
'parsers_test', 'subprocess_test', 'util_test', 'clean_test',
'test']:
objs += cxx(name)
ldflags.append('-lgtest_main -lgtest')
if platform != 'mingw':
ldflags.append('-lpthread')
n.build('ninja_test', 'link', objs, implicit=ninja_lib,
variables=[('libs', '-L$builddir -lninja'),
('ldflags', ' '.join(ldflags))])
n.newline()
n.comment('Perftest executable.')
objs = cxx('parser_perftest')
n.build('parser_perftest', 'link', objs, implicit=ninja_lib,
variables=[('libs', '-L$builddir -lninja')])
n.newline()
n.comment('Generate a graph using the "graph" tool.')
n.rule('gendot',
command='./ninja -t graph > $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 -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 $out')
mainpage = n.build(built('doxygen_mainpage'), 'doxygen_mainpage',
['README', 'HACKING', 'COPYING'],
implicit=['$doxygen_mainpage_generator'])
n.build('doxygen', 'doxygen', doc('doxygen.config'),
implicit=mainpage)
n.newline()
n.comment('Regenerate build files if build script changes.')
n.rule('configure',
command='./configure.py')
n.build('build.ninja', 'configure',
implicit='configure.py')
print 'wrote %s.' % BUILD_FILENAME
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