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configure.py
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configure.py
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#!/usr/bin/python3
import os.path
def list2makestr(objs):
obj_str = []
for obj in objs:
obj_str.append(obj)
obj_str.append(' ')
return ''.join(obj_str)
# recursively list all files that match specified extensions
def find_files(target_dir, exts):
if type(exts) is str:
exts = [exts]
files = []
for dirpath, dirnames, filenames in os.walk(target_dir):
for f in filenames:
for e in exts:
if (f.endswith(e)):
files.append(os.path.join(dirpath, f))
break
return files
target_set = set()
def dir_rule(target):
if target in target_set:
return ''
else:
target_set.add(target)
return "%s:\n\tmkdir -p $@\n" % target
def compile_rule(compiler, flags, src_file, target):
if target in target_set:
return ''
else:
target_set.add(target)
target_path = os.path.dirname(target)
return "%s: %s | %s \n\t%s %s -c %s -o %s\n" % (
target, src_file, target_path, compiler, flags, src_file,
target) + dir_rule(target_path)
def link_rule(linker, flags, objs, target):
if target in target_set:
return ''
else:
target_set.add(target)
target_path = os.path.dirname(target)
objs_str = list2makestr(objs)
return "%s: %s | %s\n\t%s %s %s -o %s\n" % (
target, objs_str, target_path, linker, objs_str, flags,
target) + dir_rule(target_path)
def ar_rule(ar, flags, objs, target):
if target in target_set:
return ''
else:
target_set.add(target)
target_path = os.path.dirname(target)
objs_str = list2makestr(objs)
return "%s: %s | %s\n\t%s %s %s %s\n" % (
target, objs_str, target_path, ar, flags, target,
objs_str) + dir_rule(target_path)
def change_ext(filename, new_ext):
return os.path.splitext(filename)[0] + new_ext
def transform_src_files(source_files, obj_dir):
objs = []
for src in source_files:
obj = os.path.join(obj_dir, src)
obj = change_ext(obj, '.o')
objs.append(obj)
return objs
cpp_compiler = 'g++'
linker = 'g++'
makefile_head = [
"""
config?=debug
build_dir:=build/${config}
flags:= -Isrc -std=c++1z -Wall -Wfloat-conversion -Wsign-conversion -Werror -MMD
gtest_dir:= googletest/googletest
gtest_flags:=-isystem ${gtest_dir}/include -I${gtest_dir}
link_flags:=-lstdc++ -lm -pthread -lblas
ifeq ($(config), release)
flags += -O3 -DNDEBUG
link_flags += -O3 -DNDEBUG
else
ifeq ($(config), profile)
flags += -g -O3 -pg -no-pie
link_flags += -g -O3 -no-pie
else
ifeq ($(config), coverage)
flags += -g -ftest-coverage -fprofile-arcs
link_flags += -g -fprofile-arcs
else
ifeq ($(config), debug)
flags += -g
link_flags += -g
else
$(error Unknown config: $(config))
endif
endif
endif
endif
"""
]
makefile_major_targets = [
"""
.PHONY: utest lib
utest: ${build_dir}/utest
lib: ${build_dir}/libscigg.a
"""
]
makefile_body = []
makefile_tail = ["""
.PHONY: clean
clean:
rm build -rf
-include ${deps}
"""]
src_files = find_files('src', '.cpp')
obj_files = transform_src_files(src_files, "${build_dir}")
for i in range(0, len(src_files)):
makefile_body.append(
compile_rule(cpp_compiler, "${flags}", src_files[i], obj_files[i]))
test_src_files = find_files('test', 'cpp')
test_obj_files = transform_src_files(test_src_files, "${build_dir}")
for i in range(0, len(test_src_files)):
makefile_body.append(
compile_rule(cpp_compiler, "${gtest_flags} ${flags}",
test_src_files[i], test_obj_files[i]))
gtest_src_files = ["${gtest_dir}/src/gtest-all.cc"]
gtest_obj_files = transform_src_files(gtest_src_files, "${build_dir}")
for i in range(0, len(gtest_src_files)):
makefile_body.append(
compile_rule(cpp_compiler, "${gtest_flags}", gtest_src_files[i],
gtest_obj_files[i]))
makefile_body.append(
link_rule(linker, "${link_flags}",
obj_files + test_obj_files + gtest_obj_files,
'${build_dir}/utest'))
makefile_body.append(
ar_rule('ar', 'crf', obj_files, "${build_dir}/libscigg.a"))
deps = list2makestr(
map(lambda obj: change_ext(obj, '.d'),
obj_files + test_obj_files + gtest_obj_files))
makefile_body.append('deps:=' + deps + '\n')
f = open('makefile', 'w')
f.write(''.join(
makefile_head + makefile_major_targets + makefile_body + makefile_tail))
f.close()
print('build with: make config=debug|release|profile|coverage')