mirror of https://github.com/bazelbuild/rules_cc
50 lines
1.8 KiB
Python
50 lines
1.8 KiB
Python
"""A test rule that compares two CToolchains in proto format."""
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def _impl(ctx):
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toolchain_config_proto = ctx.actions.declare_file(ctx.attr.toolchain_identifier + "_toolchain_config.proto")
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ctx.actions.write(
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toolchain_config_proto,
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ctx.attr.toolchain_config[CcToolchainConfigInfo].proto,
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)
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script = ("%s --before='%s' --after='%s' --toolchain_identifier='%s'" % (
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ctx.executable._comparator.short_path,
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ctx.file.crosstool.short_path,
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toolchain_config_proto.short_path,
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ctx.attr.toolchain_identifier,
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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 = [toolchain_config_proto, ctx.file.crosstool])
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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_toolchains_compare_test = rule(
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implementation = _impl,
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attrs = {
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"crosstool": attr.label(
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mandatory = True,
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allow_single_file = True,
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doc = "Location of the CROSSTOOL file",
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),
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"toolchain_config": attr.label(
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mandatory = True,
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providers = [CcToolchainConfigInfo],
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doc = ("Starlark rule that replaces the CROSSTOOL file functionality " +
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"for the CToolchain with the given identifier"),
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),
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"toolchain_identifier": attr.string(
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mandatory = True,
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doc = "identifier of the CToolchain that is being compared",
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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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