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Merge pull request #180964 from amjoseph-nixpkgs/pr/mkSkeletonFromList/simplify

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lib/systems/parse.nix: mkSkeletonFromList: improve readability
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John Ericson 2022-11-22 15:02:22 -05:00 committed by GitHub
parent f50886c0b7 36a566b78f
commit 2cb8f1a0ac
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1 changed files with 23 additions and 23 deletions
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46
lib/systems/parse.nix
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@ -422,29 +422,29 @@ rec {
else if (elemAt l 1) == "elf"
then { cpu = elemAt l 0; vendor = "unknown"; kernel = "none"; abi = elemAt l 1; }
else { cpu = elemAt l 0; kernel = elemAt l 1; };
"3" = # Awkward hacks, beware!
if elemAt l 1 == "apple"
then { cpu = elemAt l 0; vendor = "apple"; kernel = elemAt l 2; }
else if (elemAt l 1 == "linux") || (elemAt l 2 == "gnu")
then { cpu = elemAt l 0; kernel = elemAt l 1; abi = elemAt l 2; }
else if (elemAt l 2 == "mingw32") # autotools breaks on -gnu for window
then { cpu = elemAt l 0; vendor = elemAt l 1; kernel = "windows"; }
else if (elemAt l 2 == "wasi")
then { cpu = elemAt l 0; vendor = elemAt l 1; kernel = "wasi"; }
else if (elemAt l 2 == "redox")
then { cpu = elemAt l 0; vendor = elemAt l 1; kernel = "redox"; }
else if (elemAt l 2 == "mmixware")
then { cpu = elemAt l 0; vendor = elemAt l 1; kernel = "mmixware"; }
else if hasPrefix "freebsd" (elemAt l 2)
then { cpu = elemAt l 0; vendor = elemAt l 1; kernel = elemAt l 2; }
else if hasPrefix "netbsd" (elemAt l 2)
then { cpu = elemAt l 0; vendor = elemAt l 1; kernel = elemAt l 2; }
else if (elem (elemAt l 2) ["eabi" "eabihf" "elf"])
then { cpu = elemAt l 0; vendor = "unknown"; kernel = elemAt l 1; abi = elemAt l 2; }
else if (elemAt l 2 == "ghcjs")
then { cpu = elemAt l 0; vendor = "unknown"; kernel = elemAt l 2; }
else if hasPrefix "genode" (elemAt l 2)
then { cpu = elemAt l 0; vendor = elemAt l 1; kernel = elemAt l 2; }
"3" =
# cpu-kernel-environment
if elemAt l 1 == "linux" ||
elem (elemAt l 2) ["eabi" "eabihf" "elf" "gnu"]
then {
cpu = elemAt l 0;
kernel = elemAt l 1;
abi = elemAt l 2;
vendor = "unknown";
}
# cpu-vendor-os
else if elemAt l 1 == "apple" ||
elem (elemAt l 2) [ "wasi" "redox" "mmixware" "ghcjs" "mingw32" ] ||
hasPrefix "freebsd" (elemAt l 2) ||
hasPrefix "netbsd" (elemAt l 2) ||
hasPrefix "genode" (elemAt l 2)
then {
cpu = elemAt l 0;
vendor = elemAt l 1;
kernel = if elemAt l 2 == "mingw32"
then "windows" # autotools breaks on -gnu for window
else elemAt l 2;
}
else throw "Target specification with 3 components is ambiguous";
"4" = { cpu = elemAt l 0; vendor = elemAt l 1; kernel = elemAt l 2; abi = elemAt l 3; };
}.${toString (length l)}