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37 lines
1.2 KiB
Nix
37 lines
1.2 KiB
Nix
with import <nix/config.nix>;
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{system ? builtins.currentSystem, url, outputHash ? "", outputHashAlgo ? "", md5 ? "", sha1 ? "", sha256 ? "", executable ? false}:
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assert (outputHash != "" && outputHashAlgo != "")
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|| md5 != "" || sha1 != "" || sha256 != "";
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let
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builder = builtins.toFile "fetchurl.sh"
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(''
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echo "downloading $url into $out"
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${curl} --fail --location --max-redirs 20 --insecure "$url" > "$out"
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'' + (if executable then "${coreutils}/chmod +x $out" else ""));
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in
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derivation {
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name = baseNameOf (toString url);
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builder = shell;
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args = [ "-e" builder ];
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# New-style output content requirements.
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outputHashAlgo = if outputHashAlgo != "" then outputHashAlgo else
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if sha256 != "" then "sha256" else if sha1 != "" then "sha1" else "md5";
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outputHash = if outputHash != "" then outputHash else
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if sha256 != "" then sha256 else if sha1 != "" then sha1 else md5;
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outputHashMode = if executable then "recursive" else "flat";
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inherit system url;
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# No need to double the amount of network traffic
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preferLocalBuild = true;
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# Don't build in a chroot because Nix's dependencies may not be there.
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__noChroot = true;
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}
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