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31 lines
970 B
Python
31 lines
970 B
Python
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"a rule transitioning an oci_image to multiple platforms"
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def _multiarch_transition(settings, attr):
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return [
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{"//command_line_option:platforms": str(platform)}
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for platform in attr.platforms
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]
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multiarch_transition = transition(
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implementation = _multiarch_transition,
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inputs = [],
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outputs = ["//command_line_option:platforms"],
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)
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# multiarch_transition impl returns a DefaultInfo provider with the image deps as declared outputs to
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# build.
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def _impl(ctx):
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return DefaultInfo(files = depset(ctx.files.image))
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# The multi_arch rule builds the image for multiple platforms defined in the platforms attribute.
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multi_arch = rule(
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implementation = _impl,
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attrs = {
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"image": attr.label(cfg = multiarch_transition),
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"platforms": attr.label_list(),
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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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)
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