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68 lines
1.7 KiB
Python
68 lines
1.7 KiB
Python
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"""toolchain to wrap an mkosi binary.
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Type: @constellation//bazel/mkosi:toolchain_type
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Toolchains:
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- mkosi_missing_toolchain: provides a fallback toolchain for exec platforms
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where mkosi might not be available.
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"""
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load(":toolchain.bzl", "is_mkosi_available", "mkosi_make_variables", "mkosi_toolchain")
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# Expose the availability of an actual mkosi as a config_setting, so we can
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# select() on it.
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config_setting(
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name = "have_mkosi",
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flag_values = {
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":is_mkosi_available": "1",
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},
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visibility = ["//visibility:public"],
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)
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# Expose the availability of an actual mkosi as a feature flag, so we can
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# create a config_setting from it.
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is_mkosi_available(
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name = "is_mkosi_available",
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visibility = ["//:__subpackages__"],
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)
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toolchain_type(
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name = "toolchain_type",
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visibility = ["//visibility:public"],
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)
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mkosi_make_variables(
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name = "make_variables",
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visibility = ["//visibility:public"],
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)
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# mkosi_missing_toolchain provides a fallback toolchain so that toolchain
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# resolution can succeed even on platforms that do not have a working mkosi.
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# If this toolchain is selected, the constraint ":have_mkosi" will not be
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# satistifed.
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mkosi_toolchain(
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name = "no_mkosi",
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)
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toolchain(
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name = "mkosi_missing_toolchain",
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toolchain = ":no_mkosi",
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toolchain_type = ":toolchain_type",
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)
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mkosi_toolchain(
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name = "nix_mkosi",
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label = "@mkosi//:bin/mkosi",
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)
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toolchain(
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name = "mkosi_nix_toolchain",
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exec_compatible_with = [
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"@rules_nixpkgs_core//constraints:support_nix",
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],
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toolchain = ":nix_mkosi",
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toolchain_type = "@constellation//bazel/mkosi:toolchain_type",
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)
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exports_files(["mkosi_wrapper.sh.in"])
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