mirror of
https://github.com/ilyakooo0/nixpkgs.git
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76a8d120a4
mirror:// sites through environment variables, e.g. NIX_MIRRORS_gnu="ftp://ftp.nluug.nl/pub/gnu/ ftp://ftp.gnu.org/pub/gnu/" or NIX_MIRRORS_sourceforge="http://surfnet.dl.sourceforge.net/sourceforge/" svn path=/nixpkgs/trunk/; revision=9302
85 lines
2.2 KiB
Nix
85 lines
2.2 KiB
Nix
# Argh, this thing is duplicated (more-or-less) in Nix (in corepkgs).
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# Need to find a way to combine them.
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{stdenv, curl}: # Note that `curl' may be `null', in case of the native stdenv.
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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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, # 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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}:
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assert urls != [] -> url == "";
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assert url != "" -> urls == [];
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assert (outputHash != "" && outputHashAlgo != "")
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|| md5 != "" || sha1 != "" || sha256 != "";
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let
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urls_ = if urls != [] then urls else [url];
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mirrors = import ./mirrors.nix;
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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 =
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if builtins ? attrNames
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then builtins.attrNames mirrors
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else [] /* backwards compatibility */;
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in
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stdenv.mkDerivation ({
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name =
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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://nix.cs.uu.nl/dist/tarballs) over the original URLs.
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preferHashedMirrors = true;
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# Compatibility with Nix <= 0.7.
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id = md5;
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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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impureEnvVars = [
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# We borrow these environment variables from the caller to allow
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# easy proxy configuration. This is impure, but a fixed-output
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# derivation like fetchurl is allowed to do so since its result is
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# by definition pure.
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"http_proxy" "https_proxy" "ftp_proxy" "all_proxy" "no_proxy"
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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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] ++ (map (site: "NIX_MIRRORS_${site}") sites);
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}
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# Pass the mirror locations to the builder.
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// mirrors
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)
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