nixpkgs/pkgs/build-support/fetchipfs/default.nix

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{ stdenv
, curl
}:
{ ipfs
, url ? ""
, curlOpts ? ""
, outputHash ? ""
, outputHashAlgo ? ""
, md5 ? ""
, sha1 ? ""
, sha256 ? ""
, sha512 ? ""
, meta ? {}
, port ? "8080"
, postFetch ? ""
, preferLocalBuild ? true
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}:
assert sha512 != "" -> builtins.compareVersions "1.11" builtins.nixVersion <= 0;
let
hasHash = (outputHash != "" && outputHashAlgo != "")
|| md5 != "" || sha1 != "" || sha256 != "" || sha512 != "";
in
if (!hasHash) then throw "Specify sha for fetchipfs fixed-output derivation" else stdenv.mkDerivation {
name = ipfs;
builder = ./builder.sh;
nativeBuildInputs = [ curl ];
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# New-style output content requirements.
outputHashAlgo = if outputHashAlgo != "" then outputHashAlgo else
if sha512 != "" then "sha512" else if sha256 != "" then "sha256" else if sha1 != "" then "sha1" else "md5";
outputHash = if outputHash != "" then outputHash else
if sha512 != "" then sha512 else if sha256 != "" then sha256 else if sha1 != "" then sha1 else md5;
outputHashMode = "recursive";
inherit curlOpts
postFetch
ipfs
url
port
meta;
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# Doing the download on a remote machine just duplicates network
# traffic, so don't do that.
inherit preferLocalBuild;
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}