mirror of https://github.com/bazelbuild/rules_cc
54 lines
1.7 KiB
Python
54 lines
1.7 KiB
Python
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"""A test rule that compares two C++ toolchain configuration rules in proto format."""
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def _impl(ctx):
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first_toolchain_config_proto = ctx.actions.declare_file(
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ctx.label.name + "_first_toolchain_config.proto",
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)
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ctx.actions.write(
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first_toolchain_config_proto,
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ctx.attr.first[CcToolchainConfigInfo].proto,
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)
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second_toolchain_config_proto = ctx.actions.declare_file(
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ctx.label.name + "_second_toolchain_config.proto",
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)
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ctx.actions.write(
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second_toolchain_config_proto,
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ctx.attr.second[CcToolchainConfigInfo].proto,
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)
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script = ("%s --before='%s' --after='%s'" % (
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ctx.executable._comparator.short_path,
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first_toolchain_config_proto.short_path,
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second_toolchain_config_proto.short_path,
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))
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test_executable = ctx.actions.declare_file(ctx.label.name)
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ctx.actions.write(test_executable, script, is_executable = True)
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runfiles = ctx.runfiles(files = [first_toolchain_config_proto, second_toolchain_config_proto])
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runfiles = runfiles.merge(ctx.attr._comparator[DefaultInfo].default_runfiles)
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return DefaultInfo(runfiles = runfiles, executable = test_executable)
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cc_toolchain_config_compare_test = rule(
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implementation = _impl,
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attrs = {
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"first": attr.label(
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mandatory = True,
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providers = [CcToolchainConfigInfo],
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doc = "A C++ toolchain config rule",
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),
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"second": attr.label(
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mandatory = True,
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providers = [CcToolchainConfigInfo],
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doc = "A C++ toolchain config rule",
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),
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"_comparator": attr.label(
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default = ":ctoolchain_comparator",
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executable = True,
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cfg = "host",
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),
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},
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test = True,
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)
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