53 lines
2.6 KiB
Python
53 lines
2.6 KiB
Python
"""A module for defining WORKSPACE dependencies required for rules_foreign_cc"""
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load("//for_workspace:repositories.bzl", "repositories")
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load(
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"//tools/build_defs/shell_toolchain/toolchains:ws_defs.bzl",
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shell_toolchain_workspace_initalization = "workspace_part",
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)
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# buildifier: disable=unnamed-macro
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def rules_foreign_cc_dependencies(
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native_tools_toolchains = [],
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register_default_tools = True,
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additional_shell_toolchain_mappings = [],
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additional_shell_toolchain_package = None):
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"""Call this function from the WORKSPACE file to initialize rules_foreign_cc \
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dependencies and let neccesary code generation happen \
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(Code generation is needed to support different variants of the C++ Starlark API.).
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Args:
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native_tools_toolchains: pass the toolchains for toolchain types
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'@rules_foreign_cc//tools/build_defs:cmake_toolchain' and
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'@rules_foreign_cc//tools/build_defs:ninja_toolchain' with the needed platform constraints.
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If you do not pass anything, registered default toolchains will be selected (see below).
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register_default_tools: If True, the cmake and ninja toolchains, calling corresponding
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preinstalled binaries by name (cmake, ninja) will be registered after
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'native_tools_toolchains' without any platform constraints. The default is True.
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additional_shell_toolchain_mappings: Mappings of the shell toolchain functions to
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execution and target platforms constraints. Similar to what defined in
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@rules_foreign_cc//tools/build_defs/shell_toolchain/toolchains:toolchain_mappings.bzl
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in the TOOLCHAIN_MAPPINGS list. Please refer to example in @rules_foreign_cc//toolchain_examples.
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additional_shell_toolchain_package: A package under which additional toolchains, referencing
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the generated data for the passed additonal_shell_toolchain_mappings, will be defined.
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This value is needed since register_toolchains() is called for these toolchains.
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Please refer to example in @rules_foreign_cc//toolchain_examples.
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"""
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repositories()
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shell_toolchain_workspace_initalization(
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additional_shell_toolchain_mappings,
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additional_shell_toolchain_package,
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)
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native.register_toolchains(*native_tools_toolchains)
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if register_default_tools:
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native.register_toolchains(
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"@rules_foreign_cc//tools/build_defs:preinstalled_cmake_toolchain",
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"@rules_foreign_cc//tools/build_defs:preinstalled_ninja_toolchain",
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"@rules_foreign_cc//tools/build_defs:preinstalled_make_toolchain",
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)
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