mirror of
https://github.com/NixOS/nixpkgs.git
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e3a873479e
Deprecation warnings should not be used in Nixpkgs because they spam
innocent "nix-env -qa" users with (in this case) dozens of messages
that they can't do anything about.
This also reverts commit 2ca8833383.
127 lines
3.7 KiB
Nix
127 lines
3.7 KiB
Nix
{ stdenv, curl }: # Note that `curl' may be `null', in case of the native stdenv.
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let
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mirrors = import ./mirrors.nix;
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# Write the list of mirrors to a file that we can reuse between
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# fetchurl instantiations, instead of passing the mirrors to
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# fetchurl instantiations via environment variables. This makes the
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# resulting store derivations (.drv files) much smaller, which in
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# turn makes nix-env/nix-instantiate faster.
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mirrorsFile =
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stdenv.mkDerivation ({
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name = "mirrors-list";
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builder = ./write-mirror-list.sh;
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preferLocalBuild = true;
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} // mirrors);
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# Names of the master sites that are mirrored (i.e., "sourceforge",
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# "gnu", etc.).
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sites = builtins.attrNames mirrors;
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impureEnvVars = stdenv.lib.fetchers.proxyImpureEnvVars ++ [
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# This variable allows the user to pass additional options to curl
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"NIX_CURL_FLAGS"
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# This variable allows the user to override hashedMirrors from the
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# command-line.
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"NIX_HASHED_MIRRORS"
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# This variable allows overriding the timeout for connecting to
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# the hashed mirrors.
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"NIX_CONNECT_TIMEOUT"
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] ++ (map (site: "NIX_MIRRORS_${site}") sites);
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in
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{ # URL to fetch.
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url ? ""
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, # Alternatively, a list of URLs specifying alternative download
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# locations. They are tried in order.
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urls ? []
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, # Additional curl options needed for the download to succeed.
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curlOpts ? ""
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, # Name of the file. If empty, use the basename of `url' (or of the
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# first element of `urls').
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name ? ""
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# Different ways of specifying the hash.
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, outputHash ? ""
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, outputHashAlgo ? ""
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, md5 ? ""
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, sha1 ? ""
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, sha256 ? ""
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, sha512 ? ""
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, recursiveHash ? false
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, # Shell code executed after the file has been fetched
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# successfully. This can do things like check or transform the file.
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postFetch ? ""
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, # Whether to download to a temporary path rather than $out. Useful
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# in conjunction with postFetch. The location of the temporary file
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# is communicated to postFetch via $downloadedFile.
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downloadToTemp ? false
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, # If true, set executable bit on downloaded file
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executable ? false
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, # If set, don't download the file, but write a list of all possible
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# URLs (resulting from resolving mirror:// URLs) to $out.
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showURLs ? false
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, # Meta information, if any.
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meta ? {}
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}:
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assert builtins.isList urls;
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assert (urls == []) != (url == "");
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assert sha512 != "" -> builtins.compareVersions "1.11" builtins.nixVersion <= 0;
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let
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hasHash = showURLs || (outputHash != "" && outputHashAlgo != "")
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|| md5 != "" || sha1 != "" || sha256 != "" || sha512 != "";
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urls_ = if urls != [] then urls else [url];
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in
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if (!hasHash) then throw "Specify hash for fetchurl fixed-output derivation: ${stdenv.lib.concatStringsSep ", " urls_}" else stdenv.mkDerivation {
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name =
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if showURLs then "urls"
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else if name != "" then name
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else baseNameOf (toString (builtins.head urls_));
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builder = ./builder.sh;
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buildInputs = [ curl ];
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urls = urls_;
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# If set, prefer the content-addressable mirrors
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# (http://tarballs.nixos.org) over the original URLs.
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preferHashedMirrors = true;
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# New-style output content requirements.
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outputHashAlgo = if outputHashAlgo != "" then outputHashAlgo else
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if sha512 != "" then "sha512" else 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 sha512 != "" then sha512 else if sha256 != "" then sha256 else if sha1 != "" then sha1 else md5;
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outputHashMode = if (recursiveHash || executable) then "recursive" else "flat";
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inherit curlOpts showURLs mirrorsFile impureEnvVars postFetch downloadToTemp executable;
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# Doing the download on a remote machine just duplicates network
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# traffic, so don't do that.
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preferLocalBuild = true;
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inherit meta;
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}
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