mirror of
https://git.webmc.xyz/Starlike-Client/Starlike-Client
synced 2025-07-22 05:31:18 -09:00
97 lines
3.9 KiB
Python
97 lines
3.9 KiB
Python
BUILD_FILE_CONTENT_TEMPLATE = """
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package(default_visibility = ['//visibility:public'])
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exports_files(['emscripten_config'])
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"""
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EMBUILDER_CONFIG_TEMPLATE = """
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CACHE = '{cache}'
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BINARYEN_ROOT = '{binaryen_root}'
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LLVM_ROOT = '{llvm_root}'
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"""
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def get_root_and_script_ext(repository_ctx):
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if repository_ctx.os.name.startswith('linux'):
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if 'amd64' in repository_ctx.os.arch or 'x86_64' in repository_ctx.os.arch:
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return (repository_ctx.path(Label("@emscripten_bin_linux//:BUILD.bazel")).dirname, '')
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elif 'aarch64' in repository_ctx.os.arch:
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return (repository_ctx.path(Label("@emscripten_bin_linux_arm64//:BUILD.bazel")).dirname, '')
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else:
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fail('Unsupported architecture for Linux')
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elif repository_ctx.os.name.startswith('mac'):
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if 'amd64' in repository_ctx.os.arch or 'x86_64' in repository_ctx.os.arch:
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return (repository_ctx.path(Label("@emscripten_bin_mac//:BUILD.bazel")).dirname, '')
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elif 'aarch64' in repository_ctx.os.arch:
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return (repository_ctx.path(Label("@emscripten_bin_mac_arm64//:BUILD.bazel")).dirname, '')
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else:
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fail('Unsupported architecture for MacOS')
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elif repository_ctx.os.name.startswith('windows'):
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return (repository_ctx.path(Label("@emscripten_bin_win//:BUILD.bazel")).dirname, '.bat')
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else:
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fail('Unsupported operating system')
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def _emscripten_cache_impl(repository_ctx):
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# Read the default emscripten configuration file
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default_config = repository_ctx.read(
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repository_ctx.path(
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Label("@emsdk//emscripten_toolchain:default_config")
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)
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)
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if repository_ctx.attr.targets or repository_ctx.attr.configuration:
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root, script_ext = get_root_and_script_ext(repository_ctx)
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llvm_root = root.get_child("bin")
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cache = repository_ctx.path("cache")
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# Create configuration file
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embuilder_config_content = EMBUILDER_CONFIG_TEMPLATE.format(
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cache=cache,
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binaryen_root=root,
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llvm_root=llvm_root,
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)
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repository_ctx.file("embuilder_config", embuilder_config_content)
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embuilder_config_path = repository_ctx.path("embuilder_config")
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embuilder_path = "{}{}".format(root.get_child("emscripten").get_child("embuilder"), script_ext)
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# Prepare the command line
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if repository_ctx.attr.targets:
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targets = repository_ctx.attr.targets
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else:
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# If no targets are requested, build everything
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targets = ["ALL"]
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flags = ["--em-config", embuilder_config_path] + repository_ctx.attr.configuration
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embuilder_args = [embuilder_path] + flags + ["build"] + targets
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# Run embuilder
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repository_ctx.report_progress("Building secondary cache")
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result = repository_ctx.execute(
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embuilder_args,
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quiet=True,
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environment = {
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"EM_IGNORE_SANITY": "1",
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"EM_NODE_JS": "empty",
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}
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)
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if result.return_code != 0:
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fail("Embuilder exited with a non-zero return code")
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# Override Emscripten's cache with the secondary cache
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default_config += "CACHE = '{}'\n".format(cache)
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# Create the configuration file for the toolchain and export
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repository_ctx.file('emscripten_config', default_config)
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repository_ctx.file('BUILD.bazel', BUILD_FILE_CONTENT_TEMPLATE)
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_emscripten_cache = repository_rule(
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implementation = _emscripten_cache_impl,
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attrs = {
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"configuration": attr.string_list(),
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"targets": attr.string_list(),
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},
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local = True
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)
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def register_emscripten_toolchains(cache = {}):
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_emscripten_cache(
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name = "emscripten_cache",
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configuration = cache["configuration"] if "configuration" in cache else [],
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targets = cache["targets"] if "targets" in cache else [],
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)
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native.register_toolchains(str(Label("//emscripten_toolchain:cc-toolchain-wasm")))
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