Add 'nixpkgs/' from commit 'abf060725d7614bd3b9f96764262dfbc2f9c2199'

git-subtree-dir: nixpkgs
git-subtree-mainline: 4e31070265257dc67d120c27e0f75c2344fdfa9a
git-subtree-split: abf060725d7614bd3b9f96764262dfbc2f9c2199

5 files changed, 728 insertions, 0 deletions

diff --git a/nixpkgs/pkgs/build-support/fetchurl/boot.nix b/nixpkgs/pkgs/build-support/fetchurl/boot.nix
new file mode 100644
index 000000000000..bd71f93c5291
--- /dev/null
+++ b/nixpkgs/pkgs/build-support/fetchurl/boot.nix
@@ -0,0 +1,20 @@
+let mirrors = import ./mirrors.nix; in
+
+{ system }:
+
+{ url ? builtins.head urls
+, urls ? []
+, sha256
+, name ? baseNameOf (toString url)
+}:
+
+import <nix/fetchurl.nix> {
+  inherit system sha256 name;
+
+  url =
+    # Handle mirror:// URIs. Since <nix/fetchurl.nix> currently
+    # supports only one URI, use the first listed mirror.
+    let m = builtins.match "mirror://([a-z]+)/(.*)" url; in
+    if m == null then url
+    else builtins.head (mirrors.${builtins.elemAt m 0}) + (builtins.elemAt m 1);
+}
diff --git a/nixpkgs/pkgs/build-support/fetchurl/builder.sh b/nixpkgs/pkgs/build-support/fetchurl/builder.sh
new file mode 100644
index 000000000000..f9bc8b602f4c
--- /dev/null
+++ b/nixpkgs/pkgs/build-support/fetchurl/builder.sh
@@ -0,0 +1,144 @@
+source $stdenv/setup
+
+source $mirrorsFile
+
+curlVersion=$(curl -V | head -1 | cut -d' ' -f2)
+
+# Curl flags to handle redirects, not use EPSV, handle cookies for
+# servers to need them during redirects, and work on SSL without a
+# certificate (this isn't a security problem because we check the
+# cryptographic hash of the output anyway).
+curl=(
+    curl
+    --location
+    --max-redirs 20
+    --retry 3
+    --disable-epsv
+    --cookie-jar cookies
+    --insecure
+    --user-agent "curl/$curlVersion Nixpkgs/$nixpkgsVersion"
+    $curlOpts
+    $NIX_CURL_FLAGS
+)
+
+downloadedFile="$out"
+if [ -n "$downloadToTemp" ]; then downloadedFile="$TMPDIR/file"; fi
+
+
+tryDownload() {
+    local url="$1"
+    echo
+    header "trying $url"
+    local curlexit=18;
+
+    success=
+
+    # if we get error code 18, resume partial download
+    while [ $curlexit -eq 18 ]; do
+       # keep this inside an if statement, since on failure it doesn't abort the script
+       if "${curl[@]}" -C - --fail "$url" --output "$downloadedFile"; then
+          success=1
+          break
+       else
+          curlexit=$?;
+       fi
+    done
+}
+
+
+finish() {
+    set +o noglob
+
+    if [[ $executable == "1" ]]; then
+      chmod +x $downloadedFile
+    fi
+
+    runHook postFetch
+    exit 0
+}
+
+
+tryHashedMirrors() {
+    if test -n "$NIX_HASHED_MIRRORS"; then
+        hashedMirrors="$NIX_HASHED_MIRRORS"
+    fi
+
+    for mirror in $hashedMirrors; do
+        url="$mirror/$outputHashAlgo/$outputHash"
+        if "${curl[@]}" --retry 0 --connect-timeout "${NIX_CONNECT_TIMEOUT:-15}" \
+            --fail --silent --show-error --head "$url" \
+            --write-out "%{http_code}" --output /dev/null > code 2> log; then
+            tryDownload "$url"
+            if test -n "$success"; then finish; fi
+        else
+            # Be quiet about 404 errors, which we interpret as the file
+            # not being present on this particular mirror.
+            if test "$(cat code)" != 404; then
+                echo "error checking the existence of $url:"
+                cat log
+            fi
+        fi
+    done
+}
+
+
+# URL list may contain ?. No glob expansion for that, please
+set -o noglob
+
+urls2=
+for url in $urls; do
+    if test "${url:0:9}" != "mirror://"; then
+        urls2="$urls2 $url"
+    else
+        url2="${url:9}"; echo "${url2/\// }" > split; read site fileName < split
+        #varName="mirror_$site"
+        varName="$site" # !!! danger of name clash, fix this
+        if test -z "${!varName}"; then
+            echo "warning: unknown mirror:// site \`$site'"
+        else
+            mirrors=${!varName}
+
+            # Allow command-line override by setting NIX_MIRRORS_$site.
+            varName="NIX_MIRRORS_$site"
+            if test -n "${!varName}"; then mirrors="${!varName}"; fi
+
+            for url3 in $mirrors; do
+                urls2="$urls2 $url3$fileName";
+            done
+        fi
+    fi
+done
+urls="$urls2"
+
+# Restore globbing settings
+set +o noglob
+
+if test -n "$showURLs"; then
+    echo "$urls" > $out
+    exit 0
+fi
+
+
+if test -n "$preferHashedMirrors"; then
+    tryHashedMirrors
+fi
+
+# URL list may contain ?. No glob expansion for that, please
+set -o noglob
+
+success=
+for url in $urls; do
+    tryDownload "$url"
+    if test -n "$success"; then finish; fi
+done
+
+# Restore globbing settings
+set +o noglob
+
+if test -z "$preferHashedMirrors"; then
+    tryHashedMirrors
+fi
+
+
+echo "error: cannot download $name from any mirror"
+exit 1
diff --git a/nixpkgs/pkgs/build-support/fetchurl/default.nix b/nixpkgs/pkgs/build-support/fetchurl/default.nix
new file mode 100644
index 000000000000..5f0c1384c79e
--- /dev/null
+++ b/nixpkgs/pkgs/build-support/fetchurl/default.nix
@@ -0,0 +1,149 @@
+{ lib, stdenvNoCC, curl }: # Note that `curl' may be `null', in case of the native stdenvNoCC.
+
+let
+
+  mirrors = import ./mirrors.nix;
+
+  # Write the list of mirrors to a file that we can reuse between
+  # fetchurl instantiations, instead of passing the mirrors to
+  # fetchurl instantiations via environment variables.  This makes the
+  # resulting store derivations (.drv files) much smaller, which in
+  # turn makes nix-env/nix-instantiate faster.
+  mirrorsFile =
+    stdenvNoCC.mkDerivation ({
+      name = "mirrors-list";
+      builder = ./write-mirror-list.sh;
+      preferLocalBuild = true;
+    } // mirrors);
+
+  # Names of the master sites that are mirrored (i.e., "sourceforge",
+  # "gnu", etc.).
+  sites = builtins.attrNames mirrors;
+
+  impureEnvVars = lib.fetchers.proxyImpureEnvVars ++ [
+    # This variable allows the user to pass additional options to curl
+    "NIX_CURL_FLAGS"
+
+    # This variable allows the user to override hashedMirrors from the
+    # command-line.
+    "NIX_HASHED_MIRRORS"
+
+    # This variable allows overriding the timeout for connecting to
+    # the hashed mirrors.
+    "NIX_CONNECT_TIMEOUT"
+  ] ++ (map (site: "NIX_MIRRORS_${site}") sites);
+
+in
+
+{ # URL to fetch.
+  url ? ""
+
+, # Alternatively, a list of URLs specifying alternative download
+  # locations.  They are tried in order.
+  urls ? []
+
+, # Additional curl options needed for the download to succeed.
+  curlOpts ? ""
+
+, # Name of the file.  If empty, use the basename of `url' (or of the
+  # first element of `urls').
+  name ? ""
+
+  # Different ways of specifying the hash.
+, outputHash ? ""
+, outputHashAlgo ? ""
+, md5 ? ""
+, sha1 ? ""
+, sha256 ? ""
+, sha512 ? ""
+
+, recursiveHash ? false
+
+, # Shell code to build a netrc file for BASIC auth
+  netrcPhase ? null
+
+, # Impure env vars (http://nixos.org/nix/manual/#sec-advanced-attributes)
+  # needed for netrcPhase
+  netrcImpureEnvVars ? []
+
+, # Shell code executed after the file has been fetched
+  # successfully. This can do things like check or transform the file.
+  postFetch ? ""
+
+, # Whether to download to a temporary path rather than $out. Useful
+  # in conjunction with postFetch. The location of the temporary file
+  # is communicated to postFetch via $downloadedFile.
+  downloadToTemp ? false
+
+, # If true, set executable bit on downloaded file
+  executable ? false
+
+, # If set, don't download the file, but write a list of all possible
+  # URLs (resulting from resolving mirror:// URLs) to $out.
+  showURLs ? false
+
+, # Meta information, if any.
+  meta ? {}
+
+  # Passthru information, if any.
+, passthru ? {}
+}:
+
+assert sha512 != "" -> builtins.compareVersions "1.11" builtins.nixVersion <= 0;
+
+let
+  urls_ =
+    if urls != [] && url == "" then
+      (if lib.isList urls then urls
+       else throw "`urls` is not a list")
+    else if urls == [] && url != "" then [url]
+    else throw "fetchurl requires either `url` or `urls` to be set";
+
+  hash_ =
+    if md5 != "" then throw "fetchurl does not support md5 anymore, please use sha256 or sha512"
+    else if (outputHash != "" && outputHashAlgo != "") then { inherit outputHashAlgo outputHash; }
+    else if sha512 != "" then { outputHashAlgo = "sha512"; outputHash = sha512; }
+    else if sha256 != "" then { outputHashAlgo = "sha256"; outputHash = sha256; }
+    else if sha1   != "" then { outputHashAlgo = "sha1";   outputHash = sha1; }
+    else throw "fetchurl requires a hash for fixed-output derivation: ${lib.concatStringsSep ", " urls_}";
+in
+
+stdenvNoCC.mkDerivation {
+  name =
+    if showURLs then "urls"
+    else if name != "" then name
+    else baseNameOf (toString (builtins.head urls_));
+
+  builder = ./builder.sh;
+
+  nativeBuildInputs = [ curl ];
+
+  urls = urls_;
+
+  # If set, prefer the content-addressable mirrors
+  # (http://tarballs.nixos.org) over the original URLs.
+  preferHashedMirrors = true;
+
+  # New-style output content requirements.
+  inherit (hash_) outputHashAlgo outputHash;
+
+  outputHashMode = if (recursiveHash || executable) then "recursive" else "flat";
+
+  inherit curlOpts showURLs mirrorsFile postFetch downloadToTemp executable;
+
+  impureEnvVars = impureEnvVars ++ netrcImpureEnvVars;
+
+  nixpkgsVersion = lib.trivial.release;
+
+  # Doing the download on a remote machine just duplicates network
+  # traffic, so don't do that.
+  preferLocalBuild = true;
+
+  postHook = if netrcPhase == null then null else ''
+    ${netrcPhase}
+    curlOpts="$curlOpts --netrc-file $PWD/netrc"
+  '';
+
+  inherit meta;
+  inherit passthru;
+}
diff --git a/nixpkgs/pkgs/build-support/fetchurl/mirrors.nix b/nixpkgs/pkgs/build-support/fetchurl/mirrors.nix
new file mode 100644
index 000000000000..6ee9ceb52861
--- /dev/null
+++ b/nixpkgs/pkgs/build-support/fetchurl/mirrors.nix
@@ -0,0 +1,411 @@
+rec {
+
+  # Content-addressable Nix mirrors.
+  hashedMirrors = [
+    http://tarballs.nixos.org
+  ];
+
+  # Mirrors for mirror://site/filename URIs, where "site" is
+  # "sourceforge", "gnu", etc.
+
+  # SourceForge.
+  sourceforge = [
+    https://downloads.sourceforge.net/
+    https://prdownloads.sourceforge.net/
+    https://heanet.dl.sourceforge.net/sourceforge/
+    https://surfnet.dl.sourceforge.net/sourceforge/
+    https://dfn.dl.sourceforge.net/sourceforge/
+    https://osdn.dl.sourceforge.net/sourceforge/
+    https://kent.dl.sourceforge.net/sourceforge/
+  ];
+
+  # SourceForge.jp.
+  sourceforgejp = [
+    https://osdn.dl.sourceforge.jp/
+    https://jaist.dl.sourceforge.jp/
+  ];
+
+  # GNU (https://www.gnu.org/prep/ftp.html).
+  gnu = [
+    # This one redirects to a (supposedly) nearby and (supposedly) up-to-date
+    # mirror.
+    https://ftpmirror.gnu.org/
+
+    http://ftp.nluug.nl/pub/gnu/
+    http://mirrors.kernel.org/gnu/
+    ftp://mirror.cict.fr/gnu/
+    ftp://ftp.cs.tu-berlin.de/pub/gnu/
+    ftp://ftp.chg.ru/pub/gnu/
+    ftp://ftp.funet.fi/pub/mirrors/ftp.gnu.org/gnu/
+
+    # This one is the master repository, and thus it's always up-to-date.
+    http://ftp.gnu.org/pub/gnu/
+  ];
+
+  # GCC.
+  gcc = [
+    ftp://ftp.nluug.nl/mirror/languages/gcc/
+    ftp://ftp.fu-berlin.de/unix/languages/gcc/
+    ftp://ftp.irisa.fr/pub/mirrors/gcc.gnu.org/gcc/
+    ftp://gcc.gnu.org/pub/gcc/
+  ];
+
+  # GnuPG.
+  gnupg = [
+    https://gnupg.org/ftp/gcrypt/
+    http://www.ring.gr.jp/pub/net/
+    http://gd.tuwien.ac.at/privacy/
+    http://mirrors.dotsrc.org/gcrypt/
+    http://ftp.heanet.ie/mirrors/ftp.gnupg.org/gcrypt/
+    http://www.mirrorservice.org/sites/ftp.gnupg.org/gcrypt/
+  ];
+
+  # kernel.org's /pub (/pub/{linux,software}) tree.
+  kernel = [
+    http://cdn.kernel.org/pub/
+    http://www.all.kernel.org/pub/
+    http://ramses.wh2.tu-dresden.de/pub/mirrors/kernel.org/
+    http://linux-kernel.uio.no/pub/
+    http://kernel.osuosl.org/pub/
+    ftp://ftp.funet.fi/pub/mirrors/ftp.kernel.org/pub/
+  ];
+
+  # Mirrors from https://download.kde.org/extra/download-mirrors.html
+  kde = [
+    "https://download.kde.org/download.php?url="
+    https://ftp.gwdg.de/pub/linux/kde/
+    https://mirrors.ocf.berkeley.edu/kde/
+    http://mirrors.mit.edu/kde/
+    https://mirrors.ustc.edu.cn/kde/
+    http://ftp.funet.fi/pub/mirrors/ftp.kde.org/pub/kde/
+    ftp://ftp.kde.org/pub/kde/
+  ];
+
+  # Gentoo files.
+  gentoo = [
+    http://ftp.snt.utwente.nl/pub/os/linux/gentoo/
+    http://distfiles.gentoo.org/
+    ftp://mirrors.kernel.org/gentoo/
+  ];
+
+  savannah = [
+    # Mirrors from https://download-mirror.savannah.gnu.org/releases/00_MIRRORS.html
+    http://mirror.easyname.at/nongnu/
+    http://mirror2.klaus-uwe.me/nongnu/
+    http://savannah.c3sl.ufpr.br/
+    http://mirror.csclub.uwaterloo.ca/nongnu/
+    http://mirror.cedia.org.ec/nongnu/
+    http://ftp.igh.cnrs.fr/pub/nongnu/
+    http://mirror6.layerjet.com/nongnu
+    http://mirror.netcologne.de/savannah/
+    http://ftp.cc.uoc.gr/mirrors/nongnu.org/
+    http://nongnu.uib.no/
+    http://mirrors.fe.up.pt/pub/nongnu/
+    http://mirror.lihnidos.org/GNU/savannah/
+    http://savannah.mirror.si/
+    http://ftp.acc.umu.se/mirror/gnu.org/savannah/
+    http://ftp.twaren.net/Unix/NonGNU/
+    http://ftp.yzu.edu.tw/pub/nongnu/
+    http://mirror.rackdc.com/savannah/
+    http://savannah-nongnu-org.ip-connect.vn.ua/
+    http://www.mirrorservice.org/sites/download.savannah.gnu.org/releases/
+    http://savannah.spinellicreations.com/
+    http://gnu.mirrors.pair.com/savannah/savannah/
+    ftp://mirror.easyname.at/nongnu/
+    ftp://mirror2.klaus-uwe.me/nongnu/
+    ftp://savannah.c3sl.ufpr.br/savannah-nongnu/
+    ftp://mirror.csclub.uwaterloo.ca/nongnu/
+    ftp://mirror.cedia.org.ec/nongnu
+    ftp://ftp.igh.cnrs.fr/pub/nongnu/
+    ftp://mirror6.layerjet.com/nongnu/
+    ftp://mirror.netcologne.de/savannah/
+    ftp://nongnu.uib.no/pub/nongnu/
+    ftp://mirrors.fe.up.pt/pub/nongnu/
+    ftp://savannah.mirror.si/savannah/
+    ftp://ftp.twaren.net/Unix/NonGNU/
+    ftp://ftp.yzu.edu.tw/pub/nongnu/
+    ftp://savannah-nongnu-org.ip-connect.vn.ua/mirror/savannah.nongnu.org/
+    ftp://ftp.mirrorservice.org/sites/download.savannah.gnu.org/releases/
+    ftp://spinellicreations.com/gnu_dot_org_savannah_mirror/
+  ];
+
+  samba = [
+    https://www.samba.org/ftp/
+    http://www.samba.org/ftp/
+  ];
+
+  # BitlBee mirrors, see https://www.bitlbee.org/main.php/mirrors.html .
+  bitlbee = [
+    http://get.bitlbee.org/
+    http://get.bitlbee.be/
+    http://get.us.bitlbee.org/
+    http://ftp.snt.utwente.nl/pub/software/bitlbee/
+    http://bitlbee.intergenia.de/
+  ];
+
+  # ImageMagick mirrors, see https://www.imagemagick.org/script/mirror.php
+  imagemagick = [
+    https://www.imagemagick.org/download/
+    https://mirror.checkdomain.de/imagemagick/
+    https://ftp.nluug.nl/ImageMagick/
+    ftp://ftp.sunet.se/pub/multimedia/graphics/ImageMagick/ # also contains older versions removed from most mirrors
+    http://ftp.sunet.se/pub/multimedia/graphics/ImageMagick/
+    ftp://ftp.imagemagick.org/pub/ImageMagick/
+    http://ftp.fifi.org/ImageMagick/
+    ftp://ftp.fifi.org/ImageMagick/
+    http://imagemagick.mirrorcatalogs.com/
+    ftp://imagemagick.mirrorcatalogs.com/imagemagick
+  ];
+
+  # CPAN mirrors.
+  cpan = [
+    https://cpan.metacpan.org/
+    https://cpan.perl.org/
+    http://backpan.perl.org/  # for old releases
+  ];
+
+  # Debian.
+  debian = [
+    http://httpredir.debian.org/debian/
+    ftp://ftp.au.debian.org/debian/
+    ftp://ftp.de.debian.org/debian/
+    ftp://ftp.es.debian.org/debian/
+    ftp://ftp.fr.debian.org/debian/
+    ftp://ftp.it.debian.org/debian/
+    ftp://ftp.nl.debian.org/debian/
+    ftp://ftp.ru.debian.org/debian/
+    ftp://ftp.debian.org/debian/
+    http://ftp.debian.org/debian/
+    http://archive.debian.org/debian-archive/debian/
+    ftp://ftp.funet.fi/pub/mirrors/ftp.debian.org/debian/
+  ];
+
+  # Ubuntu.
+  ubuntu = [
+    http://nl.archive.ubuntu.com/ubuntu/
+    http://de.archive.ubuntu.com/ubuntu/
+    http://archive.ubuntu.com/ubuntu/
+    http://old-releases.ubuntu.com/ubuntu/
+  ];
+
+  # Fedora (please only add full mirrors that carry old Fedora distributions as well).
+  # See: https://mirrors.fedoraproject.org/publiclist (but not all carry old content).
+  fedora = [
+    http://archives.fedoraproject.org/pub/fedora/
+    http://fedora.osuosl.org/
+    http://ftp.nluug.nl/pub/os/Linux/distr/fedora/
+    http://ftp.funet.fi/pub/mirrors/ftp.redhat.com/pub/fedora/
+    http://fedora.bhs.mirrors.ovh.net/
+    http://mirror.csclub.uwaterloo.ca/fedora/
+    http://ftp.linux.cz/pub/linux/fedora/
+    http://ftp.heanet.ie/pub/fedora/
+    http://mirror.1000mbps.com/fedora/
+    http://archives.fedoraproject.org/pub/archive/fedora/
+  ];
+
+  # Old SUSE distributions.  Unfortunately there is no master site,
+  # since SUSE actually delete their old distributions (see
+  # ftp://ftp.suse.com/pub/suse/discontinued/deleted-20070817/README.txt).
+  oldsuse = [
+    ftp://ftp.gmd.de/ftp.suse.com-discontinued/
+  ];
+
+  # openSUSE.
+  opensuse = [
+    http://opensuse.hro.nl/opensuse/distribution/
+    http://ftp.funet.fi/pub/linux/mirrors/opensuse/distribution/
+    http://ftp.belnet.be/mirror/ftp.opensuse.org/distribution/
+    http://ftp.uni-kassel.de/opensuse/distribution/
+    http://ftp.opensuse.org/pub/opensuse/distribution/
+    http://ftp5.gwdg.de/pub/opensuse/discontinued/distribution/
+    http://ftp.hosteurope.de/mirror/ftp.opensuse.org/discontinued/
+    http://opensuse.mirror.server4you.net/distribution/
+    http://ftp.nsysu.edu.tw/Linux/OpenSuSE/distribution/
+  ];
+
+  # Gnome (see http://ftp.gnome.org/pub/GNOME/MIRRORS).
+  gnome = [
+    # This one redirects to some mirror closeby, so it should be all you need.
+    http://download.gnome.org/
+
+    http://ftp.unina.it/pub/linux/GNOME/
+    http://fr2.rpmfind.net/linux/gnome.org/
+    ftp://ftp.dit.upm.es/pub/GNOME/
+    ftp://ftp.no.gnome.org/pub/GNOME/
+    http://ftp.acc.umu.se/pub/GNOME/
+    http://ftp.belnet.be/mirror/ftp.gnome.org/
+    http://ftp.df.lth.se/pub/gnome/
+    http://linorg.usp.br/gnome/
+    http://mirror.aarnet.edu.au/pub/GNOME/
+    ftp://ftp.cse.buffalo.edu/pub/Gnome/
+    ftp://ftp.nara.wide.ad.jp/pub/X11/GNOME/
+  ];
+
+  xfce = [
+    http://archive.xfce.org/
+    http://mirror.netcologne.de/xfce/
+    http://archive.se.xfce.org/xfce/
+    http://archive.be.xfce.org/xfce/
+    http://mirror.perldude.de/archive.xfce.org/
+    http://archive.be2.xfce.org/
+    http://ftp.udc.es/xfce/
+    http://archive.al-us.xfce.org/
+    http://mirror.yongbok.net/X11/xfce-mirror/
+    http://mirrors.tummy.com/pub/archive.xfce.org/
+    http://xfce.mirror.uber.com.au/
+  ];
+
+  # X.org.
+  xorg = [
+    http://xorg.freedesktop.org/releases/
+    http://ftp.gwdg.de/pub/x11/x.org/pub/
+    http://ftp.x.org/pub/ # often incomplete (e.g. files missing from X.org 7.4)
+  ];
+
+  # Apache mirrors (see http://www.apache.org/mirrors/).
+  apache = [
+    http://www.eu.apache.org/dist/
+    http://wwwftp.ciril.fr/pub/apache/
+    ftp://ftp.fu-berlin.de/unix/www/apache/
+    http://ftp.tudelft.nl/apache/
+    http://mirror.cc.columbia.edu/pub/software/apache/
+    http://www.apache.org/dist/
+    http://archive.apache.org/dist/ # fallback for old releases
+    ftp://ftp.funet.fi/pub/mirrors/apache.org/
+    http://apache.cs.uu.nl/
+    http://apache.cs.utah.edu/
+  ];
+
+  postgresql = [
+    http://ftp.postgresql.org/pub/
+    ftp://ftp.postgresql.org/pub/
+    ftp://ftp-archives.postgresql.org/pub/
+  ];
+
+  metalab = [
+    ftp://mirrors.kernel.org/metalab/
+    ftp://ftp.gwdg.de/pub/linux/metalab/
+    ftp://ftp.xemacs.org/sites/metalab.unc.edu/
+  ];
+
+  # Bioconductor mirrors (from http://bioconductor.org/about/mirrors)
+  # The commented-out ones don't seem to allow direct package downloads;
+  # they serve error messages that result in hash mismatches instead.
+  bioc = [
+    # http://bioc.ism.ac.jp/
+    # http://bioc.openanalytics.eu/
+    # http://bioconductor.fmrp.usp.br/
+    # http://mirror.aarnet.edu.au/pub/bioconductor/
+    # http://watson.nci.nih.gov/bioc_mirror/
+    http://bioconductor.jp/packages/
+    http://bioconductor.statistik.tu-dortmund.de/packages/
+    http://mirrors.ebi.ac.uk/bioconductor/packages/
+    http://mirrors.ustc.edu.cn/bioc/
+  ];
+
+  # Hackage mirrors
+  hackage = [
+    http://hackage.haskell.org/package/
+    http://hdiff.luite.com/packages/archive/package/
+  ];
+
+  # Roy marples mirrors
+  roy = [
+    http://roy.marples.name/downloads/
+    http://roy.aydogan.net/
+    http://cflags.cc/roy/
+  ];
+
+  # Sage mirrors (http://www.sagemath.org/mirrors.html)
+  sageupstream = [
+    # Africa
+    http://sagemath.polytechnic.edu.na/spkg/upstream/
+    ftp://ftp.sun.ac.za/pub/mirrors/www.sagemath.org/spkg/upstream/
+    http://sagemath.mirror.ac.za/spkg/upstream/
+    https://ftp.leg.uct.ac.za/pub/packages/sage/spkg/upstream/
+    http://mirror.ufs.ac.za/sagemath/spkg/upstream/
+
+    # America, North
+    http://mirrors-usa.go-parts.com/sage/sagemath/spkg/upstream/
+    http://mirrors.mit.edu/sage/spkg/upstream/
+    http://www.cecm.sfu.ca/sage/spkg/upstream/
+    http://files.sagemath.org/spkg/upstream/
+    http://mirror.clibre.uqam.ca/sage/spkg/upstream/
+    https://mirrors.xmission.com/sage/spkg/upstream/
+
+    # America, South
+    http://sagemath.c3sl.ufpr.br/spkg/upstream/
+    http://linorg.usp.br/sage/spkg/upstream
+
+    # Asia
+    http://sage.asis.io/spkg/upstream/
+    http://mirror.hust.edu.cn/sagemath/spkg/upstream/
+    https://ftp.iitm.ac.in/sage/spkg/upstream/
+    http://ftp.kaist.ac.kr/sage/spkg/upstream/
+    http://ftp.riken.jp/sagemath/spkg/upstream/
+    https://mirrors.tuna.tsinghua.edu.cn/sagemath/spkg/upstream/
+    https://mirrors.ustc.edu.cn/sagemath/spkg/upstream/
+    http://ftp.tsukuba.wide.ad.jp/software/sage/spkg/upstream/
+    http://ftp.yz.yamagata-u.ac.jp/pub/math/sage/spkg/upstream/
+    https://mirror.yandex.ru/mirrors/sage.math.washington.edu/spkg/upstream/
+
+    # Australia
+    http://echidna.maths.usyd.edu.au/sage/spkg/upstream/
+
+    # Europe
+    http://sage.mirror.garr.it/mirrors/sage/spkg/upstream/
+    http://sunsite.rediris.es/mirror/sagemath/spkg/upstream/
+    http://mirror.switch.ch/mirror/sagemath/spkg/upstream/
+    http://mirrors.fe.up.pt/pub/sage/spkg/upstream/
+    http://www-ftp.lip6.fr/pub/math/sagemath/spkg/upstream/
+    http://ftp.ntua.gr/pub/sagemath/spkg/upstream/
+  ];
+
+  # MySQL mirrors
+  mysql = [
+    http://cdn.mysql.com/Downloads/
+  ];
+
+  # OpenBSD mirrors
+  openbsd = [
+    http://ftp.openbsd.org/pub/OpenBSD/
+    ftp://ftp.nluug.nl/pub/OpenBSD/
+    ftp://ftp-stud.fht-esslingen.de/pub/OpenBSD/
+    ftp://ftp.halifax.rwth-aachen.de/pub/OpenBSD/
+    ftp://mirror.switch.ch/pub/OpenBSD/
+  ];
+
+  # Steam Runtime mirrors
+  steamrt = [
+    http://repo.steampowered.com/steamrt/
+    https://abbradar.net/steamrt/
+  ];
+
+  # Python PyPI mirrors
+  pypi = [
+    https://files.pythonhosted.org/packages/source/
+    # pypi.io is a more semantic link, but atm it’s referencing
+    # files.pythonhosted.org over two redirects
+    https://pypi.io/packages/source/
+  ];
+
+  # Mozilla projects.
+  mozilla = [
+    http://download.cdn.mozilla.net/pub/mozilla.org/
+    https://archive.mozilla.org/pub/
+  ];
+
+  # Maven Central
+  maven = [
+    http://repo1.maven.org/maven2/
+    http://central.maven.org/maven2/
+  ];
+
+  # Alsa Project
+  alsa = [
+     ftp://ftp.alsa-project.org/pub/
+     http://alsa.cybermirror.org/
+     http://www.mirrorservice.org/sites/ftp.alsa-project.org/pub/
+     http://alsa.mirror.fr/
+  ];
+}
diff --git a/nixpkgs/pkgs/build-support/fetchurl/write-mirror-list.sh b/nixpkgs/pkgs/build-support/fetchurl/write-mirror-list.sh
new file mode 100644
index 000000000000..2dabd2e722be
--- /dev/null
+++ b/nixpkgs/pkgs/build-support/fetchurl/write-mirror-list.sh
@@ -0,0 +1,4 @@
+source $stdenv/setup
+
+# !!! this is kinda hacky.
+set | grep -E '^[a-zA-Z]+=.*://' > $out