68 lines
2.0 KiB
Python
68 lines
2.0 KiB
Python
def _platform_transition_impl(settings, attr):
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_ignore = settings
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return {
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"//command_line_option:platforms": "@zig_sdk{}".format(attr.platform),
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"//command_line_option:extra_toolchains": ["@zig_sdk{}".format(tc) for tc in attr.extra_toolchains],
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}
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_platform_transition = transition(
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implementation = _platform_transition_impl,
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inputs = [],
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outputs = [
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"//command_line_option:platforms",
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"//command_line_option:extra_toolchains",
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],
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)
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def _platform_binary_impl(ctx):
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source_info = ctx.attr.src[DefaultInfo]
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executable = None
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if source_info.files_to_run and source_info.files_to_run.executable:
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executable = ctx.actions.declare_file("{}_{}".format(ctx.file.src.basename, ctx.attr.platform))
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ctx.actions.run_shell(
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command = "cp {} {}".format(source_info.files_to_run.executable.path, executable.path),
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inputs = [source_info.files_to_run.executable],
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outputs = [executable],
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)
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return [DefaultInfo(
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files = depset(ctx.files.src),
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executable = executable,
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)]
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_attrs = {
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"src": attr.label(
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allow_single_file = True,
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mandatory = True,
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doc = "Target to build.",
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),
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"platform": attr.string(
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doc = "The platform to build the target for.",
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),
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"extra_toolchains": attr.string_list(
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doc = "The toolchains to provide as extra_toolchains.",
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),
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"_allowlist_function_transition": attr.label(
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default = "@bazel_tools//tools/allowlists/function_transition_allowlist",
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),
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}
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# wrap a single exectable and build it for the specified platform passing in
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# the extra_toolchains.
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platform_binary = rule(
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implementation = _platform_binary_impl,
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cfg = _platform_transition,
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attrs = _attrs,
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executable = True,
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)
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# wrap a single test target and build it for the specified platform passing in
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# the extra_toolchains.
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platform_test = rule(
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implementation = _platform_binary_impl,
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cfg = _platform_transition,
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attrs = _attrs,
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test = True,
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)
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