pyrox.dev
Merge pull request #180964 from amjoseph-nixpkgs/pr/mkSkeletonFromList/simplify
lib/systems/parse.nix: mkSkeletonFromList: improve readability
authored by
John Ericson
and committed by
GitHub
2cb8f1a0
f50886c0
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-23
lib/systems/parse.nix
+23
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lib/systems/parse.nix
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else if (elemAt l 1) == "elf"
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then { cpu = elemAt l 0; vendor = "unknown"; kernel = "none"; abi = elemAt l 1; }
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else { cpu = elemAt l 0; kernel = elemAt l 1; };
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-
"3" = # Awkward hacks, beware!
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if elemAt l 1 == "apple"
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then { cpu = elemAt l 0; vendor = "apple"; kernel = elemAt l 2; }
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else if (elemAt l 1 == "linux") || (elemAt l 2 == "gnu")
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then { cpu = elemAt l 0; kernel = elemAt l 1; abi = elemAt l 2; }
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else if (elemAt l 2 == "mingw32") # autotools breaks on -gnu for window
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then { cpu = elemAt l 0; vendor = elemAt l 1; kernel = "windows"; }
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else if (elemAt l 2 == "wasi")
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then { cpu = elemAt l 0; vendor = elemAt l 1; kernel = "wasi"; }
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else if (elemAt l 2 == "redox")
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then { cpu = elemAt l 0; vendor = elemAt l 1; kernel = "redox"; }
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else if (elemAt l 2 == "mmixware")
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then { cpu = elemAt l 0; vendor = elemAt l 1; kernel = "mmixware"; }
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else if hasPrefix "freebsd" (elemAt l 2)
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then { cpu = elemAt l 0; vendor = elemAt l 1; kernel = elemAt l 2; }
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else if hasPrefix "netbsd" (elemAt l 2)
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then { cpu = elemAt l 0; vendor = elemAt l 1; kernel = elemAt l 2; }
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else if (elem (elemAt l 2) ["eabi" "eabihf" "elf"])
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then { cpu = elemAt l 0; vendor = "unknown"; kernel = elemAt l 1; abi = elemAt l 2; }
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else if (elemAt l 2 == "ghcjs")
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then { cpu = elemAt l 0; vendor = "unknown"; kernel = elemAt l 2; }
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else if hasPrefix "genode" (elemAt l 2)
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then { cpu = elemAt l 0; vendor = elemAt l 1; kernel = elemAt l 2; }
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else throw "Target specification with 3 components is ambiguous";
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"4" = { cpu = elemAt l 0; vendor = elemAt l 1; kernel = elemAt l 2; abi = elemAt l 3; };
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}.${toString (length l)}
···
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else if (elemAt l 1) == "elf"
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then { cpu = elemAt l 0; vendor = "unknown"; kernel = "none"; abi = elemAt l 1; }
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else { cpu = elemAt l 0; kernel = elemAt l 1; };
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"3" =
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# cpu-kernel-environment
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if elemAt l 1 == "linux" ||
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elem (elemAt l 2) ["eabi" "eabihf" "elf" "gnu"]
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then {
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cpu = elemAt l 0;
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kernel = elemAt l 1;
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abi = elemAt l 2;
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vendor = "unknown";
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}
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# cpu-vendor-os
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else if elemAt l 1 == "apple" ||
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elem (elemAt l 2) [ "wasi" "redox" "mmixware" "ghcjs" "mingw32" ] ||
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hasPrefix "freebsd" (elemAt l 2) ||
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hasPrefix "netbsd" (elemAt l 2) ||
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hasPrefix "genode" (elemAt l 2)
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then {
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cpu = elemAt l 0;
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vendor = elemAt l 1;
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kernel = if elemAt l 2 == "mingw32"
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then "windows" # autotools breaks on -gnu for window
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else elemAt l 2;
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}
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else throw "Target specification with 3 components is ambiguous";
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"4" = { cpu = elemAt l 0; vendor = elemAt l 1; kernel = elemAt l 2; abi = elemAt l 3; };
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}.${toString (length l)}