conans/assets/templates/new_v2_bazel.py
import platform
from conans.assets.templates.new_v2_cmake import source_cpp, source_h, test_main
conanfile_sources_v2 = """
import os
from conan import ConanFile
from conan.errors import ConanException
from conan.tools.google import Bazel, bazel_layout
from conan.tools.files import copy
class {package_name}Conan(ConanFile):
name = "{name}"
version = "{version}"
# Binary configuration
settings = "os", "compiler", "build_type", "arch"
options = {{"shared": [True, False], "fPIC": [True, False]}}
default_options = {{"shared": False, "fPIC": True}}
# Sources are located in the same place as this recipe, copy them to the recipe
exports_sources = "main/*", "WORKSPACE"
generators = "BazelToolchain"
def config_options(self):
if self.settings.os == "Windows":
del self.options.fPIC
def layout(self):
# DEPRECATED: Default generators folder will be "conan" in Conan 2.x
self.folders.generators = "conan"
bazel_layout(self)
def build(self):
bazel = Bazel(self)
# On Linux platforms, Bazel creates both shared and static libraries by default, and
# it is getting naming conflicts if we use the cc_shared_library rule
if self.options.shared and self.settings.os != "Linux":
# We need to add '--experimental_cc_shared_library' because the project uses
# cc_shared_library to create shared libraries
bazel.build(args=["--experimental_cc_shared_library"], target="//main:{name}_shared")
else:
bazel.build(target="//main:{name}")
def package(self):
dest_lib = os.path.join(self.package_folder, "lib")
dest_bin = os.path.join(self.package_folder, "bin")
build = os.path.join(self.build_folder, "bazel-bin", "main")
copy(self, "*.so", build, dest_lib, keep_path=False)
copy(self, "*.dll", build, dest_bin, keep_path=False)
copy(self, "*.dylib", build, dest_lib, keep_path=False)
copy(self, "*.a", build, dest_lib, keep_path=False)
copy(self, "*.lib", build, dest_lib, keep_path=False)
copy(self, "{name}.h", os.path.join(self.source_folder, "main"),
os.path.join(self.package_folder, "include"), keep_path=False)
def package_info(self):
if self.options.shared and self.settings.os != "Linux":
self.cpp_info.libs = ["{name}_shared"]
else:
self.cpp_info.libs = ["{name}"]
"""
test_conanfile_v2 = """import os
from conan import ConanFile
from conan.tools.google import Bazel, bazel_layout
from conan.tools.build import cross_building
class {package_name}TestConan(ConanFile):
settings = "os", "compiler", "build_type", "arch"
# VirtualBuildEnv and VirtualRunEnv can be avoided if "tools.env.virtualenv:auto_use" is defined
# (it will be defined in Conan 2.0)
generators = "BazelToolchain", "BazelDeps", "VirtualBuildEnv", "VirtualRunEnv"
apply_env = False
def requirements(self):
self.requires(self.tested_reference_str)
def build(self):
bazel = Bazel(self)
bazel.build(target="//main:example")
def layout(self):
# DEPRECATED: Default generators folder will be "conan" in Conan 2.x
self.folders.generators = "conan"
bazel_layout(self)
def test(self):
if not cross_building(self):
cmd = os.path.join(self.cpp.build.bindirs[0], "main", "example")
self.run(cmd, env="conanrun")
"""
_bazel_build_test = """\
load("@rules_cc//cc:defs.bzl", "cc_binary")
cc_binary(
name = "example",
srcs = ["example.cpp"],
deps = [
"@{name}//:{name}",
],
)
"""
_bazel_build_linux = """\
load("@rules_cc//cc:defs.bzl", "cc_library")
cc_library(
name = "{name}",
srcs = ["{name}.cpp"],
hdrs = ["{name}.h"],
)
"""
_bazel_build = """\
load("@rules_cc//cc:defs.bzl", "cc_library")
cc_library(
name = "{name}",
srcs = ["{name}.cpp"],
hdrs = ["{name}.h"],
)
cc_shared_library(
name = "{name}_shared",
shared_lib_name = "lib{name}_shared.{ext}",
deps = [":{name}"],
)
"""
_bazel_workspace = ""
_test_bazel_workspace = """
load("@//conan:dependencies.bzl", "load_conan_dependencies")
load_conan_dependencies()
"""
conanfile_exe = """
import os
from conan import ConanFile
from conan.tools.google import Bazel, bazel_layout
from conan.tools.files import copy
class {package_name}Conan(ConanFile):
name = "{name}"
version = "{version}"
# Binary configuration
settings = "os", "compiler", "build_type", "arch"
# Sources are located in the same place as this recipe, copy them to the recipe
exports_sources = "main/*", "WORKSPACE"
generators = "BazelToolchain"
def layout(self):
# DEPRECATED: Default generators folder will be "conan" in Conan 2.x
self.folders.generators = "conan"
bazel_layout(self)
def build(self):
bazel = Bazel(self)
bazel.build()
def package(self):
dest_bin = os.path.join(self.package_folder, "bin")
build = os.path.join(self.build_folder, "bazel-bin", "main")
copy(self, "{name}", build, dest_bin, keep_path=False)
copy(self, "{name}.exe", build, dest_bin, keep_path=False)
"""
test_conanfile_exe_v2 = """import os
from conan import ConanFile
from conan.tools.build import cross_building
class {package_name}TestConan(ConanFile):
settings = "os", "compiler", "build_type", "arch"
# VirtualRunEnv can be avoided if "tools.env.virtualenv:auto_use" is defined
# (it will be defined in Conan 2.0)
generators = "VirtualRunEnv"
apply_env = False
def test(self):
if not cross_building(self):
self.run("{name}", env="conanrun")
"""
_bazel_build_exe = """\
load("@rules_cc//cc:defs.bzl", "cc_binary")
cc_binary(
name = "{name}",
srcs = ["main.cpp", "{name}.cpp", "{name}.h"]
)
"""
def _get_bazel_build(name):
_bazel_build_template = ""
if platform.system() == "Windows":
_bazel_build_template = _bazel_build.format(name=name, ext="dll")
elif platform.system() == "Darwin":
_bazel_build_template = _bazel_build.format(name=name, ext="dylib")
else: # Assuming Linux
_bazel_build_template = _bazel_build_linux.format(name=name)
return _bazel_build_template
def get_bazel_lib_files(name, version, package_name="Pkg"):
files = {"conanfile.py": conanfile_sources_v2.format(name=name, version=version,
package_name=package_name),
"main/{}.cpp".format(name): source_cpp.format(name=name, version=version),
"main/{}.h".format(name): source_h.format(name=name, version=version),
"main/BUILD": _get_bazel_build(name),
"WORKSPACE": _bazel_workspace.format(name=name, version=version),
"test_package/conanfile.py": test_conanfile_v2.format(name=name, version=version,
package_name=package_name),
"test_package/main/example.cpp": test_main.format(name=name),
"test_package/main/BUILD": _bazel_build_test.format(name=name),
"test_package/WORKSPACE": _test_bazel_workspace.format(name=name, version=version)}
return files
def get_bazel_exe_files(name, version, package_name="Pkg"):
files = {"conanfile.py": conanfile_exe.format(name=name, version=version,
package_name=package_name),
"main/{}.cpp".format(name): source_cpp.format(name=name, version=version),
"main/{}.h".format(name): source_h.format(name=name, version=version),
"main/main.cpp": test_main.format(name=name),
"main/BUILD": _bazel_build_exe.format(name=name, version=version),
"WORKSPACE": _bazel_workspace.format(name=name, version=version),
"test_package/conanfile.py": test_conanfile_exe_v2.format(name=name, version=version,
package_name=package_name)
}
return files