Files
scylladb/configure.py
Asias He a2b54fc757 main: Introduce init.cc to cleanup service startup code
This patch introduce init.cc file which hosts all the initialization
code. The benefits are 1) we can share initialization code with tests
code. 2) all the service startup dependency / order code is in one
single place instead of everywhere.
2015-07-28 18:20:45 +08:00

633 lines
27 KiB
Python
Executable File

#!/usr/bin/python3
import os, os.path, textwrap, argparse, sys, shlex, subprocess, tempfile, re
from distutils.spawn import find_executable
configure_args = str.join(' ', [shlex.quote(x) for x in sys.argv[1:]])
def get_flags():
with open('/proc/cpuinfo') as f:
for line in f:
if line.strip():
if line.rstrip('\n').startswith('flags'):
return re.sub(r'^flags\s+: ', '', line).split()
def add_tristate(arg_parser, name, dest, help):
arg_parser.add_argument('--enable-' + name, dest = dest, action = 'store_true', default = None,
help = 'Enable ' + help)
arg_parser.add_argument('--disable-' + name, dest = dest, action = 'store_false', default = None,
help = 'Disable ' + help)
def apply_tristate(var, test, note, missing):
if (var is None) or var:
if test():
return True
elif var == True:
print(missing)
sys.exit(1)
else:
print(note)
return False
return False
def pkg_config(option, package):
output = subprocess.check_output(['pkg-config', option, package])
return output.decode('utf-8').strip()
def try_compile(compiler, source = '', flags = []):
with tempfile.NamedTemporaryFile() as sfile:
sfile.file.write(bytes(source, 'utf-8'))
sfile.file.flush()
return subprocess.call([compiler, '-x', 'c++', '-o', '/dev/null', '-c', sfile.name] + flags,
stdout = subprocess.DEVNULL,
stderr = subprocess.DEVNULL) == 0
def warning_supported(warning, compiler):
# gcc ignores -Wno-x even if it is not supported
adjusted = re.sub('^-Wno-', '-W', warning)
return try_compile(flags = [adjusted], compiler = compiler)
def debug_flag(compiler):
src_with_auto = textwrap.dedent('''\
template <typename T>
struct x { auto f() {} };
x<int> a;
''')
if try_compile(source = src_with_auto, flags = ['-g', '-std=gnu++1y'], compiler = compiler):
return '-g'
else:
print('Note: debug information disabled; upgrade your compiler')
return ''
class Thrift(object):
def __init__(self, source, service):
self.source = source
self.service = service
def generated(self, gen_dir):
basename = os.path.splitext(os.path.basename(self.source))[0]
files = [basename + '_' + ext
for ext in ['types.cpp', 'types.h', 'constants.cpp', 'constants.h']]
files += [self.service + ext
for ext in ['.cpp', '.h']]
return [os.path.join(gen_dir, file) for file in files]
def headers(self, gen_dir):
return [x for x in self.generated(gen_dir) if x.endswith('.h')]
def sources(self, gen_dir):
return [x for x in self.generated(gen_dir) if x.endswith('.cpp')]
def objects(self, gen_dir):
return [x.replace('.cpp', '.o') for x in self.sources(gen_dir)]
def endswith(self, end):
return self.source.endswith(end)
class Antlr3Grammar(object):
def __init__(self, source):
self.source = source
def generated(self, gen_dir):
basename = os.path.splitext(self.source)[0]
files = [basename + ext
for ext in ['Lexer.cpp', 'Lexer.hpp', 'Parser.cpp', 'Parser.hpp']]
return [os.path.join(gen_dir, file) for file in files]
def headers(self, gen_dir):
return [x for x in self.generated(gen_dir) if x.endswith('.hpp')]
def sources(self, gen_dir):
return [x for x in self.generated(gen_dir) if x.endswith('.cpp')]
def objects(self, gen_dir):
return [x.replace('.cpp', '.o') for x in self.sources(gen_dir)]
def endswith(self, end):
return self.source.endswith(end)
modes = {
'debug': {
'sanitize': '-fsanitize=address -fsanitize=leak -fsanitize=undefined',
'sanitize_libs': '-lubsan -lasan',
'opt': '-O0 -DDEBUG -DDEBUG_SHARED_PTR -DDEFAULT_ALLOCATOR',
'libs': '',
},
'release': {
'sanitize': '',
'sanitize_libs': '',
'opt': '-O2',
'libs': '',
},
}
urchin_tests = [
'tests/urchin/mutation_test',
'tests/urchin/range_test',
'tests/urchin/types_test',
'tests/urchin/keys_test',
'tests/urchin/partitioner_test',
'tests/urchin/frozen_mutation_test',
'tests/perf/perf_mutation',
'tests/perf/perf_hash',
'tests/perf/perf_cql_parser',
'tests/perf/perf_simple_query',
'tests/urchin/cql_query_test',
'tests/urchin/mutation_reader_test',
'tests/urchin/mutation_query_test',
'tests/urchin/row_cache_test',
'tests/test-serialization',
'tests/urchin/sstable_test',
'tests/urchin/sstable_mutation_test',
'tests/urchin/memtable_test',
'tests/urchin/commitlog_test',
'tests/cartesian_product_test',
'tests/urchin/hash_test',
'tests/urchin/serializer_test',
'tests/urchin/map_difference_test',
'tests/urchin/message',
'tests/urchin/gossip',
'tests/urchin/gossip_test',
'tests/urchin/compound_test',
'tests/urchin/config_test',
'tests/urchin/gossiping_property_file_snitch_test',
'tests/urchin/network_topology_strategy_test',
'tests/urchin/query_processor_test',
'tests/urchin/batchlog_manager_test',
'tests/urchin/bytes_ostream_test',
'tests/urchin/UUID_test',
'tests/urchin/murmur_hash_test',
]
apps = [
'scylla',
]
tests = urchin_tests
all_artifacts = apps + tests
arg_parser = argparse.ArgumentParser('Configure seastar')
arg_parser.add_argument('--static', dest = 'static', action = 'store_const', default = '',
const = '-static',
help = 'Static link (useful for running on hosts outside the build environment')
arg_parser.add_argument('--pie', dest = 'pie', action = 'store_true',
help = 'Build position-independent executable (PIE)')
arg_parser.add_argument('--so', dest = 'so', action = 'store_true',
help = 'Build shared object (SO) instead of executable')
arg_parser.add_argument('--mode', action='store', choices=list(modes.keys()) + ['all'], default='all')
arg_parser.add_argument('--with', dest='artifacts', action='append', choices=all_artifacts, default=[])
arg_parser.add_argument('--cflags', action = 'store', dest = 'user_cflags', default = '',
help = 'Extra flags for the C++ compiler')
arg_parser.add_argument('--ldflags', action = 'store', dest = 'user_ldflags', default = '',
help = 'Extra flags for the linker')
arg_parser.add_argument('--compiler', action = 'store', dest = 'cxx', default = 'g++',
help = 'C++ compiler path')
arg_parser.add_argument('--with-osv', action = 'store', dest = 'with_osv', default = '',
help = 'Shortcut for compile for OSv')
arg_parser.add_argument('--enable-dpdk', action = 'store_true', dest = 'dpdk', default = False,
help = 'Enable dpdk (from seastar dpdk sources)')
arg_parser.add_argument('--dpdk-target', action = 'store', dest = 'dpdk_target', default = '',
help = 'Path to DPDK SDK target location (e.g. <DPDK SDK dir>/x86_64-native-linuxapp-gcc)')
arg_parser.add_argument('--debuginfo', action = 'store', dest = 'debuginfo', type = int, default = 1,
help = 'Enable(1)/disable(0)compiler debug information generation')
add_tristate(arg_parser, name = 'hwloc', dest = 'hwloc', help = 'hwloc support')
add_tristate(arg_parser, name = 'xen', dest = 'xen', help = 'Xen support')
args = arg_parser.parse_args()
defines = []
urchin_libs = '-llz4 -lsnappy -lz -lboost_thread -lcryptopp -lrt -lyaml-cpp -lboost_date_time'
cassandra_interface = Thrift(source = 'interface/cassandra.thrift', service = 'Cassandra')
urchin_core = (['database.cc',
'schema.cc',
'bytes.cc',
'mutation.cc',
'row_cache.cc',
'frozen_mutation.cc',
'memtable.cc',
'mutation_partition.cc',
'mutation_partition_view.cc',
'mutation_partition_serializer.cc',
'mutation_reader.cc',
'mutation_query.cc',
'keys.cc',
'sstables/sstables.cc',
'sstables/compress.cc',
'sstables/row.cc',
'sstables/key.cc',
'sstables/partition.cc',
'sstables/filter.cc',
'sstables/compaction.cc',
'log.cc',
'transport/server.cc',
'cql3/abstract_marker.cc',
'cql3/attributes.cc',
'cql3/cf_name.cc',
'cql3/cql3_type.cc',
'cql3/operation.cc',
'cql3/index_name.cc',
'cql3/keyspace_element_name.cc',
'cql3/lists.cc',
'cql3/sets.cc',
'cql3/maps.cc',
'cql3/functions/functions.cc',
'cql3/statements/cf_prop_defs.cc',
'cql3/statements/create_table_statement.cc',
'cql3/statements/drop_keyspace_statement.cc',
'cql3/statements/drop_table_statement.cc',
'cql3/statements/schema_altering_statement.cc',
'cql3/statements/modification_statement.cc',
'cql3/statements/update_statement.cc',
'cql3/statements/delete_statement.cc',
'cql3/statements/batch_statement.cc',
'cql3/statements/select_statement.cc',
'cql3/statements/use_statement.cc',
'cql3/statements/index_prop_defs.cc',
'cql3/statements/index_target.cc',
'cql3/statements/create_index_statement.cc',
'cql3/update_parameters.cc',
'cql3/ut_name.cc',
'thrift/handler.cc',
'thrift/server.cc',
'thrift/thrift_validation.cc',
'utils/runtime.cc',
'utils/murmur_hash.cc',
'utils/uuid.cc',
'types.cc',
'validation.cc',
'service/migration_manager.cc',
'service/storage_proxy.cc',
'cql3/operator.cc',
'cql3/relation.cc',
'cql3/column_identifier.cc',
'cql3/constants.cc',
'cql3/query_processor.cc',
'cql3/query_options.cc',
'cql3/single_column_relation.cc',
'cql3/token_relation.cc',
'cql3/column_condition.cc',
'cql3/untyped_result_set.cc',
'cql3/selection/abstract_function_selector.cc',
'cql3/selection/simple_selector.cc',
'cql3/selection/selectable.cc',
'cql3/selection/selector_factories.cc',
'cql3/selection/selection.cc',
'cql3/selection/selector.cc',
'cql3/restrictions/statement_restrictions.cc',
'db/consistency_level.cc',
'db/system_keyspace.cc',
'db/legacy_schema_tables.cc',
'db/commitlog/commitlog.cc',
'db/serializer.cc',
'db/config.cc',
'db/index/secondary_index.cc',
'db/marshal/type_parser.cc',
'db/batchlog_manager.cc',
'io/io.cc',
'utils/utils.cc',
'utils/UUID_gen.cc',
'utils/i_filter.cc',
'utils/bloom_filter.cc',
'utils/bloom_calculations.cc',
'utils/rate_limiter.cc',
'gms/version_generator.cc',
'gms/versioned_value.cc',
'gms/gossiper.cc',
'gms/failure_detector.cc',
'gms/gms.cc',
'dht/i_partitioner.cc',
'dht/murmur3_partitioner.cc',
'dht/byte_ordered_partitioner.cc',
'unimplemented.cc',
'query.cc',
'query-result-set.cc',
'locator/abstract_replication_strategy.cc',
'locator/simple_strategy.cc',
'locator/local_strategy.cc',
'locator/network_topology_strategy.cc',
'locator/token_metadata.cc',
'locator/locator.cc',
'locator/snitch_base.cc',
'locator/simple_snitch.cc',
'locator/rack_inferring_snitch.cc',
'locator/gossiping_property_file_snitch.cc',
'message/messaging_service.cc',
'service/migration_task.cc',
'service/storage_service.cc',
'streaming/streaming.cc',
'streaming/stream_task.cc',
'streaming/stream_session.cc',
'streaming/stream_request.cc',
'streaming/stream_summary.cc',
'streaming/stream_transfer_task.cc',
'streaming/stream_receive_task.cc',
'streaming/stream_plan.cc',
'streaming/progress_info.cc',
'streaming/session_info.cc',
'streaming/stream_coordinator.cc',
'streaming/stream_manager.cc',
'streaming/stream_result_future.cc',
'streaming/messages/stream_init_message.cc',
'streaming/messages/retry_message.cc',
'streaming/messages/received_message.cc',
'streaming/messages/prepare_message.cc',
'streaming/messages/file_message_header.cc',
'streaming/messages/outgoing_file_message.cc',
'streaming/messages/incoming_file_message.cc',
'gc_clock.cc',
'partition_slice_builder.cc',
'init.cc'
]
+ [Antlr3Grammar('cql3/Cql.g')]
+ [Thrift('interface/cassandra.thrift', 'Cassandra')]
)
api = ['api/api.cc',
'api/api-doc/storage_service.json',
'api/storage_service.cc',
'api/api-doc/commitlog.json',
'api/commitlog.cc',
'api/api-doc/gossiper.json',
'api/gossiper.cc',
'api/api-doc/failure_detector.json',
'api/failure_detector.cc',
'api/api-doc/column_family.json',
'api/column_family.cc',
'api/messaging_service.cc',
'api/api-doc/messaging_service.json',
'api/api-doc/storage_proxy.json',
'api/storage_proxy.cc',
'api/api-doc/cache_service.json',
'api/cache_service.cc',
'api/api-doc/collectd.json',
'api/collectd.cc',
'api/api-doc/endpoint_snitch_info.json',
'api/endpoint_snitch.cc',
'api/api-doc/compaction_manager.json',
'api/compaction_manager.cc',
'api/api-doc/hinted_handoff.json',
'api/hinted_handoff.cc',
'api/api-doc/utils.json',
]
urchin_tests_dependencies = urchin_core + [
'tests/urchin/cql_test_env.cc',
'tests/urchin/cql_assertions.cc',
'tests/urchin/result_set_assertions.cc',
'tests/urchin/mutation_source_test.cc',
]
urchin_tests_seastar_deps = [
'seastar/tests/test-utils.cc',
'seastar/tests/test_runner.cc',
]
deps = {
'scylla': ['main.cc'] + urchin_core + api,
}
for t in urchin_tests:
deps[t] = urchin_tests_dependencies + [t + '.cc']
if 'types_test' not in t and 'keys_test' not in t and 'partitioner_test' not in t and 'map_difference_test' not in t and 'frozen_mutation_test' not in t and 'perf_mutation' not in t and 'cartesian_product_test' not in t and 'perf_hash' not in t and 'perf_cql_parser' not in t and 'message' not in t and 'perf_simple_query' not in t and 'serialization' not in t and t != 'tests/urchin/gossip' and 'compound_test' not in t and 'range_test' not in t:
deps[t] += urchin_tests_seastar_deps
deps['tests/urchin/sstable_test'] += ['tests/urchin/sstable_datafile_test.cc']
deps['tests/urchin/bytes_ostream_test'] = ['tests/urchin/bytes_ostream_test.cc']
deps['tests/urchin/UUID_test'] = ['utils/UUID_gen.cc', 'tests/urchin/UUID_test.cc']
deps['tests/urchin/murmur_hash_test'] = ['bytes.cc', 'utils/murmur_hash.cc', 'tests/urchin/murmur_hash_test.cc']
warnings = [
'-Wno-mismatched-tags', # clang-only
'-Wno-maybe-uninitialized', # false positives on gcc 5
]
warnings = [w
for w in warnings
if warning_supported(warning = w, compiler = args.cxx)]
warnings = ' '.join(warnings)
dbgflag = debug_flag(args.cxx) if args.debuginfo else ''
if args.so:
args.pie = '-shared'
args.fpie = '-fpic'
elif args.pie:
args.pie = '-pie'
args.fpie = '-fpie'
else:
args.pie = ''
args.fpie = ''
defines = ' '.join(['-D' + d for d in defines])
globals().update(vars(args))
total_memory = os.sysconf('SC_PAGE_SIZE') * os.sysconf('SC_PHYS_PAGES')
link_pool_depth = max(int(total_memory / 7e9), 1)
build_modes = modes if args.mode == 'all' else [args.mode]
build_artifacts = all_artifacts if not args.artifacts else args.artifacts
seastar_flags = []
if args.dpdk:
# fake dependencies on dpdk, so that it is built before anything else
seastar_flags += ['--enable-dpdk']
elif args.dpdk_target:
seastar_flags += ['--dpdk-target', args.dpdk_target]
status = subprocess.call(['./configure.py'] + seastar_flags, cwd = 'seastar')
if status != 0:
print('Seastar configuration failed')
sys.exit(1)
pc = { mode : 'build/{}/seastar.pc'.format(mode) for mode in build_modes }
ninja = find_executable('ninja') or find_executable('ninja-build')
if not ninja:
print('Ninja executable (ninja or ninja-build) not found on PATH\n')
sys.exit(1)
status = subprocess.call([ninja] + list(pc.values()), cwd = 'seastar')
if status:
print('Failed to generate {}\n'.format(pc))
sys.exit(1)
for mode in build_modes:
cfg = dict([line.strip().split(': ', 1)
for line in open('seastar/' + pc[mode])
if ': ' in line])
modes[mode]['seastar_cflags'] = cfg['Cflags']
modes[mode]['seastar_libs'] = cfg['Libs']
seastar_deps = 'practically_anything_can_change_so_lets_run_it_every_time_and_restat.'
args.user_cflags += " " + pkg_config("--cflags", "jsoncpp")
libs = "-lyaml-cpp -llz4 -lz -lsnappy " + pkg_config("--libs", "jsoncpp") + ' -lboost_filesystem'
user_cflags = args.user_cflags
outdir = 'build'
buildfile = 'build.ninja'
os.makedirs(outdir, exist_ok = True)
do_sanitize = True
if args.static:
do_sanitize = False
with open(buildfile, 'w') as f:
f.write(textwrap.dedent('''\
configure_args = {configure_args}
builddir = {outdir}
cxx = {cxx}
cxxflags = {user_cflags} {warnings} {defines}
ldflags = {user_ldflags}
libs = {libs}
pool link_pool
depth = {link_pool_depth}
rule ragel
command = ragel -G2 -o $out $in
description = RAGEL $out
rule gen
command = echo -e $text > $out
description = GEN $out
rule swagger
command = seastar/json/json2code.py -f $in -o $out
description = SWAGGER $out
rule ninja
command = {ninja} -C $subdir $target
restat = 1
description = NINJA $out
''').format(**globals()))
for mode in build_modes:
modeval = modes[mode]
f.write(textwrap.dedent('''\
cxxflags_{mode} = -I. -I $builddir/{mode}/gen -I seastar -I seastar/build/{mode}/gen
rule cxx.{mode}
command = $cxx -MMD -MT $out -MF $out.d {seastar_cflags} $cxxflags $cxxflags_{mode} -c -o $out $in
description = CXX $out
depfile = $out.d
rule link.{mode}
command = $cxx $cxxflags_{mode} $ldflags {seastar_libs} -o $out $in $libs $libs_{mode}
description = LINK $out
pool = link_pool
rule link_stripped.{mode}
command = $cxx $cxxflags_{mode} -s $ldflags {seastar_libs} -o $out $in $libs $libs_{mode}
description = LINK (stripped) $out
pool = link_pool
rule ar.{mode}
command = rm -f $out; ar cr $out $in; ranlib $out
description = AR $out
rule thrift.{mode}
command = thrift -gen cpp:cob_style -out $builddir/{mode}/gen $in
description = THRIFT $in
rule antlr3.{mode}
command = sed -e '/^#if 0/,/^#endif/d' $in > $builddir/{mode}/gen/$in && antlr3 $builddir/{mode}/gen/$in && sed -i 's/^\\( *\)\\(ImplTraits::CommonTokenType\\* [a-zA-Z0-9_]* = NULL;\\)$$/\\1const \\2/' build/{mode}/gen/${{stem}}Parser.cpp
description = ANTLR3 $in
''').format(mode = mode, **modeval))
f.write('build {mode}: phony {artifacts}\n'.format(mode = mode,
artifacts = str.join(' ', ('$builddir/' + mode + '/' + x for x in build_artifacts))))
compiles = {}
ragels = {}
swaggers = {}
thrifts = set()
antlr3_grammars = set()
for binary in build_artifacts:
srcs = deps[binary]
objs = ['$builddir/' + mode + '/' + src.replace('.cc', '.o')
for src in srcs
if src.endswith('.cc')]
has_thrift = False
for dep in deps[binary]:
if isinstance(dep, Thrift):
has_thrift = True
objs += dep.objects('$builddir/' + mode + '/gen')
if isinstance(dep, Antlr3Grammar):
objs += dep.objects('$builddir/' + mode + '/gen')
if binary.endswith('.pc'):
vars = modeval.copy()
vars.update(globals())
pc = textwrap.dedent('''\
Name: Seastar
URL: http://seastar-project.org/
Description: Advanced C++ framework for high-performance server applications on modern hardware.
Version: 1.0
Libs: -L{srcdir}/{builddir} -Wl,--whole-archive -lseastar -Wl,--no-whole-archive {dbgflag} -Wl,--no-as-needed {static} {pie} -fvisibility=hidden -pthread {user_ldflags} {libs} {sanitize_libs}
Cflags: -std=gnu++1y {dbgflag} {fpie} -Wall -Werror -fvisibility=hidden -pthread -I{srcdir} -I{srcdir}/{builddir}/gen {user_cflags} {warnings} {defines} {sanitize} {opt}
''').format(builddir = 'build/' + mode, srcdir = os.getcwd(), **vars)
f.write('build $builddir/{}/{}: gen\n text = {}\n'.format(mode, binary, repr(pc)))
elif binary.endswith('.a'):
f.write('build $builddir/{}/{}: ar.{} {}\n'.format(mode, binary, mode, str.join(' ', objs)))
else:
if binary.startswith('tests/'):
# Our code's debugging information is huge, and multiplied
# by many tests yields ridiculous amounts of disk space.
# So we strip the tests by default; The user can very
# quickly re-link the test unstripped by adding a "_g"
# to the test name, e.g., "ninja build/release/testname_g"
f.write('build $builddir/{}/{}: link_stripped.{} {} {}\n'.format(mode, binary, mode, str.join(' ', objs),
'seastar/build/{}/libseastar.a'.format(mode)))
if has_thrift:
f.write(' libs = -lthrift -lboost_system $libs\n')
f.write('build $builddir/{}/{}_g: link.{} {} {}\n'.format(mode, binary, mode, str.join(' ', objs),
'seastar/build/{}/libseastar.a'.format(mode)))
else:
f.write('build $builddir/{}/{}: link.{} {} {}\n'.format(mode, binary, mode, str.join(' ', objs),
'seastar/build/{}/libseastar.a'.format(mode)))
if has_thrift:
f.write(' libs = -lthrift -lboost_system $libs\n')
for src in srcs:
if src.endswith('.cc'):
obj = '$builddir/' + mode + '/' + src.replace('.cc', '.o')
compiles[obj] = src
elif src.endswith('.rl'):
hh = '$builddir/' + mode + '/gen/' + src.replace('.rl', '.hh')
ragels[hh] = src
elif src.endswith('.json'):
hh = '$builddir/' + mode + '/gen/' + src + '.hh'
swaggers[hh] = src
elif src.endswith('.thrift'):
thrifts.add(src)
elif src.endswith('.g'):
antlr3_grammars.add(src)
else:
raise Exception('No rule for ' + src)
for obj in compiles:
src = compiles[obj]
gen_headers = list(ragels.keys())
gen_headers += ['seastar/build/{}/http/request_parser.hh'.format(mode)]
for th in thrifts:
gen_headers += th.headers('$builddir/{}/gen'.format(mode))
for g in antlr3_grammars:
gen_headers += g.headers('$builddir/{}/gen'.format(mode))
gen_headers += list(swaggers.keys())
f.write('build {}: cxx.{} {} || {} \n'.format(obj, mode, src, ' '.join(gen_headers)))
for hh in ragels:
src = ragels[hh]
f.write('build {}: ragel {}\n'.format(hh, src))
for hh in swaggers:
src = swaggers[hh]
f.write('build {}: swagger {}\n'.format(hh,src))
for thrift in thrifts:
outs = ' '.join(thrift.generated('$builddir/{}/gen'.format(mode)))
f.write('build {}: thrift.{} {}\n'.format(outs, mode, thrift.source))
for cc in thrift.sources('$builddir/{}/gen'.format(mode)):
obj = cc.replace('.cpp', '.o')
f.write('build {}: cxx.{} {}\n'.format(obj, mode, cc))
for grammar in antlr3_grammars:
outs = ' '.join(grammar.generated('$builddir/{}/gen'.format(mode)))
f.write('build {}: antlr3.{} {}\n stem = {}\n'.format(outs, mode, grammar.source,
grammar.source.rsplit('.', 1)[0]))
for cc in grammar.sources('$builddir/{}/gen'.format(mode)):
obj = cc.replace('.cpp', '.o')
f.write('build {}: cxx.{} {}\n'.format(obj, mode, cc))
f.write('build seastar/build/{}/libseastar.a: ninja {}\n'.format(mode, seastar_deps))
f.write(' subdir = seastar\n')
f.write(' target = build/{}/libseastar.a\n'.format(mode))
f.write('build {}: phony\n'.format(seastar_deps))
f.write(textwrap.dedent('''\
rule configure
command = python3 configure.py $configure_args
generator = 1
build build.ninja: configure | configure.py
rule cscope
command = find -name '*.[chS]' -o -name "*.cc" -o -name "*.hh" | cscope -bq -i-
description = CSCOPE
build cscope: cscope
rule request_parser_hh
command = {ninja} -C seastar build/release/gen/http/request_parser.hh build/debug/gen/http/request_parser.hh
description = GEN seastar/http/request_parser.hh
build seastar/build/release/http/request_parser.hh seastar/build/debug/http/request_parser.hh: request_parser_hh
default {modes_list}
''').format(modes_list = ' '.join(build_modes), **globals()))