33 lines
1.4 KiB
Nix
33 lines
1.4 KiB
Nix
{ lib }:
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let
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alt = a: b: if a == null then b else a;
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in
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with builtins; rec {
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latestVersion = attrs: (builtins.head (builtins.sort (a: b: (builtins.compareVersions a.version b.version) == 1) (builtins.attrValues (builtins.mapAttrs (version: value: { inherit version value; }) attrs)))).value;
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selectSystem = system: systems:
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if system == "aarch64-darwin" then
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alt (lib.findFirst ({host, ...}: (match "arm64-apple-darwin.*" host) != null) null systems) (selectSystem "x86_64-darwin" systems)
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else if system == "x86_64-darwin" then
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alt (lib.findFirst ({host, ...}: (match "x86_64-apple-darwin.*" host) != null) null systems) (selectSystem "i686-darwin" systems)
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else if system == "i686-darwin" then
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lib.findFirst ({host, ...}: (match "i[3456]86-apple-darwin.*" host) != null) null systems
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else if system == "aarch64-linux" then
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lib.findFirst ({host, ...}: (match "(aarch64|arm64)-linux-gnu" host) != null) null systems
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else if system == "x86_64-linux" then
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lib.findFirst ({host, ...}: (match "x86_64-.*linux-gnu" host) != null) null systems
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else null;
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convertHash = hash: let
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m = (match "(SHA-256|SHA-1|MD5):(.*)" hash);
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algo = elemAt m 0;
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h = elemAt m 1;
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in
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if m == null then
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throw "Unsupported hash format ${hash}"
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else if algo == "SHA-256" then
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{ sha256 = h; }
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else if algo == "SHA-1" then
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{ sha1 = h; }
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else
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{ md5 = h; };
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}
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