34 lines
1.1 KiB
Python
34 lines
1.1 KiB
Python
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""" Defines the rule for building external library with CMake
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"""
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load("//tools/build_defs:framework.bzl", "cc_external_rule_impl", "detect_root",
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"CC_EXTERNAL_RULE_ATTRIBUTES", "create_attrs")
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def _cmake_external(ctx):
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options = " ".join(ctx.attr.cmake_options)
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root = detect_root(ctx.attr.lib_source)
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cmake_string = "cmake -DCMAKE_PREFIX_PATH=\"$EXT_BUILD_ROOT\" -DCMAKE_INSTALL_PREFIX=$INSTALLDIR {} $EXT_BUILD_ROOT/{}".format(options, root)
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attrs = create_attrs(ctx.attr,
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configure_name = 'CMake',
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configure_script = cmake_string)
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return cc_external_rule_impl(ctx, attrs)
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def _attrs():
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attrs = dict(CC_EXTERNAL_RULE_ATTRIBUTES)
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attrs.update({"cmake_options": attr.string_list(mandatory = False, default = [])})
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return attrs
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""" Rule for building external library with CMake
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Attributes:
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cmake_options - (list of strings) options to be passed to the cmake call
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Other attributes are documented in framework.bzl:CC_EXTERNAL_RULE_ATTRIBUTES
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"""
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cmake_external = rule(
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attrs = _attrs(),
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fragments = ["cpp"],
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output_to_genfiles = True,
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implementation = _cmake_external
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)
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