Merge pull request #34028 from florianjacob/matomo

piwik is now matomo

nixos/doc/manual/release-notes/rl-1803.xml

···
       <link xlink:href="http://borgbackup.readthedocs.io/en/stable/usage/upgrade.html#attic-and-borg-0-xx-to-borg-1-x">here</link>.
     </para>
   </listitem>
+  <listitem>
+    <para>
+      The Piwik analytics software was renamed to Matomo:
+      <itemizedlist>
+        <listitem>
+          <para>The package <literal>pkgs.piwik</literal> was renamed to <literal>pkgs.matomo</literal>.</para>
+        </listitem>
+        <listitem>
+          <para>The service <literal>services.piwik</literal> was renamed to <literal>services.matomo</literal>.</para>
+        </listitem>
+        <listitem>
+          <para>
+            The data directory <filename>/var/lib/piwik</filename> was renamed to <filename>/var/lib/matomo</filename>.
+            All files will be moved automatically on first startup, but you might need to adjust your backup scripts.
+          </para>
+        </listitem>
+        <listitem>
+          <para>
+            The default <option>serverName</option> for the nginx configuration changed from
+            <literal>piwik.${config.networking.hostName}</literal> to
+            <literal>matomo.${config.networking.hostName}.${config.networking.domain}</literal>
+            if <option>config.networking.domain</option> is set,
+            <literal>matomo.${config.networking.hostName}</literal> if it is not set.
+            If you change your <option>serverName</option>, remember you'll need to update the
+            <literal>trustedHosts[]</literal> array in <filename>/var/lib/matomo/config/config.ini.php</filename>
+            as well.
+          </para>
+        </listitem>
+        <listitem>
+          <para>
+            The <literal>piwik</literal> user was renamed to <literal>matomo</literal>.
+            The service will adjust ownership automatically for files in the data directory.
+            If you use unix socket authentication, remember to give the new <literal>matomo</literal> user
+            access to the database and to change the <literal>username</literal> to <literal>matomo</literal>
+            in the <literal>[database]</literal> section of <filename>/var/lib/matomo/config/config.ini.php</filename>.
+          </para>
+        </listitem>
+        <listitem>
+          <para>
+            If you named your database `piwik`, you might want to rename it to `matomo` to keep things clean,
+            but this is neither enforced nor required.
+          </para>
+        </listitem>
+      </itemizedlist>
+    </para>
+  </listitem>
 </itemizedlist>
 
 </section>

nixos/modules/module-list.nix

···
   ./services/web-apps/nixbot.nix
   ./services/web-apps/nexus.nix
   ./services/web-apps/pgpkeyserver-lite.nix
-  ./services/web-apps/piwik.nix
+  ./services/web-apps/matomo.nix
   ./services/web-apps/pump.io.nix
   ./services/web-apps/restya-board.nix
   ./services/web-apps/tt-rss.nix

nixos/modules/rename.nix

···
     # parsoid
     (mkRemovedOptionModule [ "services" "parsoid" "interwikis" ] [ "services" "parsoid" "wikis" ])
 
+    # piwik was renamed to matomo
+    (mkRenamedOptionModule [ "services" "piwik" "enable" ] [ "services" "matomo" "enable" ])
+    (mkRenamedOptionModule [ "services" "piwik" "webServerUser" ] [ "services" "matomo" "webServerUser" ])
+    (mkRenamedOptionModule [ "services" "piwik" "phpfpmProcessManagerConfig" ] [ "services" "matomo" "phpfpmProcessManagerConfig" ])
+    (mkRenamedOptionModule [ "services" "piwik" "nginx" ] [ "services" "matomo" "nginx" ])
+
     # tarsnap
     (mkRemovedOptionModule [ "services" "tarsnap" "cachedir" ] "Use services.tarsnap.archives.<name>.cachedir")
 

nixos/modules/services/databases/mysql.nix

···
         '';
         example = [
           "nextcloud"
-          "piwik"
+          "matomo"
         ];
       };
 

nixos/modules/services/web-apps/matomo-doc.xml

···
+<chapter xmlns="http://docbook.org/ns/docbook"
+         xmlns:xlink="http://www.w3.org/1999/xlink"
+         xmlns:xi="http://www.w3.org/2001/XInclude"
+         version="5.0"
+         xml:id="module-services-matomo">
+
+  <title>Matomo</title>
+  <para>
+    Matomo is a real-time web analytics application.
+    This module configures php-fpm as backend for Matomo, optionally configuring an nginx vhost as well.
+  </para>
+
+  <para>
+    An automatic setup is not suported by Matomo, so you need to configure Matomo itself in the browser-based Matomo setup.
+  </para>
+
+
+  <section>
+    <title>Database Setup</title>
+
+    <para>
+      You also need to configure a MariaDB or MySQL database and -user for Matomo yourself,
+      and enter those credentials in your browser.
+      You can use passwordless database authentication via the UNIX_SOCKET authentication plugin
+      with the following SQL commands:
+
+      <programlisting>
+        # For MariaDB
+        INSTALL PLUGIN unix_socket SONAME 'auth_socket';
+        CREATE DATABASE matomo;
+        CREATE USER 'matomo'@'localhost' IDENTIFIED WITH unix_socket;
+        GRANT ALL PRIVILEGES ON matomo.* TO 'matomo'@'localhost';
+
+        # For MySQL
+        INSTALL PLUGIN auth_socket SONAME 'auth_socket.so';
+        CREATE DATABASE matomo;
+        CREATE USER 'matomo'@'localhost' IDENTIFIED WITH auth_socket;
+        GRANT ALL PRIVILEGES ON matomo.* TO 'matomo'@'localhost';
+      </programlisting>
+
+      Then fill in <literal>matomo</literal> as database user and database name, and leave the password field blank.
+      This authentication works by allowing only the <literal>matomo</literal> unix user to authenticate as the
+      <literal>matomo</literal> database user (without needing a password), but no other users.
+      For more information on passwordless login, see
+      <link xlink:href="https://mariadb.com/kb/en/mariadb/unix_socket-authentication-plugin/" />.
+    </para>
+
+    <para>
+      Of course, you can use password based authentication as well, e.g. when the database is not on the same host.
+    </para>
+  </section>
+
+
+  <section>
+    <title>Backup</title>
+    <para>
+      You only need to take backups of your MySQL database and the
+      <filename>/var/lib/matomo/config/config.ini.php</filename> file.
+      Use a user in the <literal>matomo</literal> group or root to access the file.
+      For more information, see <link xlink:href="https://matomo.org/faq/how-to-install/faq_138/" />.
+    </para>
+  </section>
+
+
+  <section>
+    <title>Issues</title>
+    <itemizedlist>
+      <listitem>
+        <para>
+          Matomo's file integrity check will warn you.
+          This is due to the patches necessary for NixOS, you can safely ignore this.
+        </para>
+      </listitem>
+
+      <listitem>
+        <para>
+          Matomo will warn you that the JavaScript tracker is not writable.
+          This is because it's located in the read-only nix store.
+          You can safely ignore this, unless you need a plugin that needs JavaScript tracker access.
+        </para>
+      </listitem>
+    </itemizedlist>
+  </section>
+
+
+  <section>
+    <title>Using other Web Servers than nginx</title>
+
+    <para>
+      You can use other web servers by forwarding calls for <filename>index.php</filename> and
+      <filename>piwik.php</filename> to the <literal>/run/phpfpm-matomo.sock</literal> fastcgi unix socket.
+      You can use the nginx configuration in the module code as a reference to what else should be configured.
+    </para>
+  </section>
+</chapter>

nixos/modules/services/web-apps/piwik-doc.xml

···
-<chapter xmlns="http://docbook.org/ns/docbook"
-         xmlns:xlink="http://www.w3.org/1999/xlink"
-         xmlns:xi="http://www.w3.org/2001/XInclude"
-         version="5.0"
-         xml:id="module-services-piwik">
-
-  <title>Piwik</title>
-  <para>
-    Piwik is a real-time web analytics application.
-    This module configures php-fpm as backend for piwik, optionally configuring an nginx vhost as well.
-  </para>
-
-  <para>
-    An automatic setup is not suported by piwik, so you need to configure piwik itself in the browser-based piwik setup.
-  </para>
-
-
-  <section>
-    <title>Database Setup</title>
-
-    <para>
-      You also need to configure a MariaDB or MySQL database and -user for piwik yourself,
-      and enter those credentials in your browser.
-      You can use passwordless database authentication via the UNIX_SOCKET authentication plugin
-      with the following SQL commands:
-
-      <programlisting>
-        # For MariaDB
-        INSTALL PLUGIN unix_socket SONAME 'auth_socket';
-        CREATE DATABASE piwik;
-        CREATE USER 'piwik'@'localhost' IDENTIFIED WITH unix_socket;
-        GRANT ALL PRIVILEGES ON piwik.* TO 'piwik'@'localhost';
-
-        # For MySQL
-        INSTALL PLUGIN auth_socket SONAME 'auth_socket.so';
-        CREATE DATABASE piwik;
-        CREATE USER 'piwik'@'localhost' IDENTIFIED WITH auth_socket;
-        GRANT ALL PRIVILEGES ON piwik.* TO 'piwik'@'localhost';
-      </programlisting>
-
-      Then fill in <literal>piwik</literal> as database user and database name, and leave the password field blank.
-      This authentication works by allowing only the <literal>piwik</literal> unix user to authenticate as the 
-      <literal>piwik</literal> database user (without needing a password), but no other users.
-      For more information on passwordless login, see
-      <link xlink:href="https://mariadb.com/kb/en/mariadb/unix_socket-authentication-plugin/" />.
-    </para>
-
-    <para>
-      Of course, you can use password based authentication as well, e.g. when the database is not on the same host.
-    </para>
-  </section>
-
-
-  <section>
-    <title>Backup</title>
-    <para>
-      You only need to take backups of your MySQL database and the
-      <filename>/var/lib/piwik/config/config.ini.php</filename> file.
-      Use a user in the <literal>piwik</literal> group or root to access the file.
-      For more information, see <link xlink:href="https://piwik.org/faq/how-to-install/faq_138/" />.
-    </para>
-  </section>
-
-
-  <section>
-    <title>Issues</title>
-    <itemizedlist>
-      <listitem>
-        <para>
-          Piwik's file integrity check will warn you.
-          This is due to the patches necessary for NixOS, you can safely ignore this.
-        </para>
-      </listitem>
-
-      <listitem>
-        <para>
-          Piwik will warn you that the JavaScript tracker is not writable.
-          This is because it's located in the read-only nix store.
-          You can safely ignore this, unless you need a plugin that needs JavaScript tracker access.
-        </para>
-      </listitem>
-    </itemizedlist>
-  </section>
-
-
-  <section>
-    <title>Using other Web Servers than nginx</title>
-
-    <para>
-      You can use other web servers by forwarding calls for <filename>index.php</filename> and
-      <filename>piwik.php</filename> to the <literal>/run/phpfpm-piwik.sock</literal> fastcgi unix socket.
-      You can use the nginx configuration in the module code as a reference to what else should be configured.
-    </para>
-  </section>
-</chapter>

nixos/modules/services/web-apps/piwik.nix nixos/modules/services/web-apps/matomo.nix

···
 { config, lib, pkgs, services, ... }:
 with lib;
 let
-  cfg = config.services.piwik;
+  cfg = config.services.matomo;
 
-  user = "piwik";
+  user = "matomo";
   dataDir = "/var/lib/${user}";
+  deprecatedDataDir = "/var/lib/piwik";
 
   pool = user;
   # it's not possible to use /run/phpfpm/${pool}.sock because /run/phpfpm/ is root:root 0770,
···
   phpSocket = "/run/phpfpm-${pool}.sock";
   phpExecutionUnit = "phpfpm-${pool}";
   databaseService = "mysql.service";
+
+  fqdn =
+    let
+      join = hostName: domain: hostName + optionalString (domain != null) ".${domain}";
+     in join config.networking.hostName config.networking.domain;
 
 in {
   options = {
-    services.piwik = {
+    services.matomo = {
       # NixOS PR for database setup: https://github.com/NixOS/nixpkgs/pull/6963
-      # piwik issue for automatic piwik setup: https://github.com/piwik/piwik/issues/10257
-      # TODO: find a nice way to do this when more NixOS MySQL and / or piwik automatic setup stuff is implemented.
+      # matomo issue for automatic matomo setup: https://github.com/matomo-org/matomo/issues/10257
+      # TODO: find a nice way to do this when more NixOS MySQL and / or matomo automatic setup stuff is implemented.
       enable = mkOption {
         type = types.bool;
         default = false;
         description = ''
-          Enable piwik web analytics with php-fpm backend.
+          Enable matomo web analytics with php-fpm backend.
           Either the nginx option or the webServerUser option is mandatory.
         '';
       };
···
         type = types.nullOr types.str;
         default = null;
         example = "lighttpd";
+        # TODO: piwik.php might get renamed to matomo.php in future releases
         description = ''
-          Name of the web server user that forwards requests to the ${phpSocket} fastcgi socket for piwik if the nginx
+          Name of the web server user that forwards requests to the ${phpSocket} fastcgi socket for matomo if the nginx
           option is not used. Either this option or the nginx option is mandatory.
           If you want to use another webserver than nginx, you need to set this to that server's user
           and pass fastcgi requests to `index.php` and `piwik.php` to this socket.
···
           catch_workers_output = yes
         '';
         description = ''
-          Settings for phpfpm's process manager. You might need to change this depending on the load for piwik.
+          Settings for phpfpm's process manager. You might need to change this depending on the load for matomo.
         '';
       };
 
···
             (import ../web-servers/nginx/vhost-options.nix { inherit config lib; })
             {
               # enable encryption by default,
-              # as sensitive login and piwik data should not be transmitted in clear text.
+              # as sensitive login and matomo data should not be transmitted in clear text.
               options.forceSSL.default = true;
               options.enableACME.default = true;
             }
···
         );
         default = null;
         example = {
-          serverName = "stats.$\{config.networking.hostName\}";
+          serverAliases = [
+            "matomo.$\{config.networking.domain\}"
+            "stats.$\{config.networking.domain\}"
+          ];
           enableACME = false;
         };
         description = ''
-            With this option, you can customize an nginx virtualHost which already has sensible defaults for piwik.
+            With this option, you can customize an nginx virtualHost which already has sensible defaults for matomo.
             Either this option or the webServerUser option is mandatory.
             Set this to {} to just enable the virtualHost if you don't need any customization.
-            If enabled, then by default, the serverName is piwik.$\{config.networking.hostName\}, SSL is active,
-            and certificates are acquired via ACME.
+            If enabled, then by default, the <option>serverName</option> is
+            <literal>${user}.$\{config.networking.hostName\}.$\{config.networking.domain\}</literal>,
+            SSL is active, and certificates are acquired via ACME.
             If this is set to null (the default), no nginx virtualHost will be configured.
         '';
       };
···
 
   config = mkIf cfg.enable {
     warnings = mkIf (cfg.nginx != null && cfg.webServerUser != null) [
-      "If services.piwik.nginx is set, services.piwik.nginx.webServerUser is ignored and should be removed."
+      "If services.matomo.nginx is set, services.matomo.nginx.webServerUser is ignored and should be removed."
     ];
 
     assertions = [ {
         assertion = cfg.nginx != null || cfg.webServerUser != null;
-        message = "Either services.piwik.nginx or services.piwik.nginx.webServerUser is mandatory";
+        message = "Either services.matomo.nginx or services.matomo.nginx.webServerUser is mandatory";
     }];
 
     users.extraUsers.${user} = {
···
     };
     users.extraGroups.${user} = {};
 
-    systemd.services.piwik_setup_update = {
-      # everything needs to set up and up to date before piwik php files are executed
+    systemd.services.matomo_setup_update = {
+      # everything needs to set up and up to date before matomo php files are executed
       requiredBy = [ "${phpExecutionUnit}.service" ];
       before = [ "${phpExecutionUnit}.service" ];
       # the update part of the script can only work if the database is already up and running
       requires = [ databaseService ];
       after = [ databaseService ];
-      path = [ pkgs.piwik ];
+      path = [ pkgs.matomo ];
       serviceConfig = {
         Type = "oneshot";
         User = user;
         # hide especially config.ini.php from other
         UMask = "0007";
+        # TODO: might get renamed to MATOMO_USER_PATH in future versions
         Environment = "PIWIK_USER_PATH=${dataDir}";
         # chown + chmod in preStart needs root
         PermissionsStartOnly = true;
···
       # e.g. after restoring from backup or moving from another system.
       # Note that ${dataDir}/config/config.ini.php might contain the MySQL password.
       preStart = ''
+        # migrate data from piwik to matomo folder
+        if [ -d ${deprecatedDataDir} ]; then
+          echo "Migrating from ${deprecatedDataDir} to ${dataDir}"
+          mv -T ${deprecatedDataDir} ${dataDir}
+        fi
         chown -R ${user}:${user} ${dataDir}
         chmod -R ug+rwX,o-rwx ${dataDir}
         '';
       script = ''
-            # Use User-Private Group scheme to protect piwik data, but allow administration / backup via piwik group
+            # Use User-Private Group scheme to protect matomo data, but allow administration / backup via matomo group
             # Copy config folder
             chmod g+s "${dataDir}"
-            cp -r "${pkgs.piwik}/config" "${dataDir}/"
+            cp -r "${pkgs.matomo}/config" "${dataDir}/"
             chmod -R u+rwX,g+rwX,o-rwx "${dataDir}"
 
             # check whether user setup has already been done
             if test -f "${dataDir}/config/config.ini.php"; then
               # then execute possibly pending database upgrade
-              piwik-console core:update --yes
+              matomo-console core:update --yes
             fi
       '';
     };
 
     systemd.services.${phpExecutionUnit} = {
-      # stop phpfpm on package upgrade, do database upgrade via piwik_setup_update, and then restart
-      restartTriggers = [ pkgs.piwik ];
+      # stop phpfpm on package upgrade, do database upgrade via matomo_setup_update, and then restart
+      restartTriggers = [ pkgs.matomo ];
       # stop config.ini.php from getting written with read permission for others
       serviceConfig.UMask = "0007";
     };
···
       # References:
       # https://fralef.me/piwik-hardening-with-nginx-and-php-fpm.html
       # https://github.com/perusio/piwik-nginx
-      "${user}.${config.networking.hostName}" = mkMerge [ cfg.nginx {
-        # don't allow to override the root easily, as it will almost certainly break piwik.
+      "${user}.${fqdn}" = mkMerge [ cfg.nginx {
+        # don't allow to override the root easily, as it will almost certainly break matomo.
         # disadvantage: not shown as default in docs.
-        root = mkForce "${pkgs.piwik}/share";
+        root = mkForce "${pkgs.matomo}/share";
 
         # define locations here instead of as the submodule option's default
         # so that they can easily be extended with additional locations if required
-        # without needing to redefine the piwik ones.
+        # without needing to redefine the matomo ones.
         # disadvantage: not shown as default in docs.
         locations."/" = {
           index = "index.php";
···
         locations."= /index.php".extraConfig = ''
           fastcgi_pass unix:${phpSocket};
         '';
+        # TODO: might get renamed to matomo.php in future versions
         # allow piwik.php for tracking
         locations."= /piwik.php".extraConfig = ''
           fastcgi_pass unix:${phpSocket};
···
         locations."= /robots.txt".extraConfig = ''
           return 200 "User-agent: *\nDisallow: /\n";
         '';
+        # TODO: might get renamed to matomo.js in future versions
         # let browsers cache piwik.js
         locations."= /piwik.js".extraConfig = ''
           expires 1M;
···
   };
 
   meta = {
-    doc = ./piwik-doc.xml;
+    doc = ./matomo-doc.xml;
     maintainers = with stdenv.lib.maintainers; [ florianjacob ];
   };
 }

pkgs/servers/web-apps/matomo/default.nix

···
+{ stdenv, fetchurl, makeWrapper, php }:
+
+stdenv.mkDerivation rec {
+  name = "matomo-${version}";
+  version = "3.3.0";
+
+  src = fetchurl {
+    # TODO: As soon as the tarballs are renamed as well on future releases, this should be enabled again
+    # url = "https://builds.matomo.org/${name}.tar.gz";
+    url = "https://builds.matomo.org/piwik-${version}.tar.gz";
+    sha256 = "1ybzj3kk0x29nv8c6xnhir5d9dr0q0fl1vnm4i7zvhml73ryqk0f";
+  };
+
+  nativeBuildInputs = [ makeWrapper ];
+
+  # make-localhost-default-database-server.patch:
+  #   This changes the default value of the database server field
+  #   from 127.0.0.1 to localhost.
+  #   unix socket authentication only works with localhost,
+  #   but password-based SQL authentication works with both.
+  # TODO: is upstream interested in this?
+  patches = [ ./make-localhost-default-database-host.patch ];
+
+  # this bootstrap.php adds support for getting PIWIK_USER_PATH
+  # from an environment variable. Point it to a mutable location
+  # to be able to use matomo read-only from the nix store
+  postPatch = ''
+    cp ${./bootstrap.php} bootstrap.php
+  '';
+
+  # TODO: future versions might rename the PIWIK_… variables to MATOMO_…
+  # TODO: Move more unnecessary files from share/, especially using PIWIK_INCLUDE_PATH.
+  #       See https://forum.matomo.org/t/bootstrap-php/5926/10 and
+  #       https://github.com/matomo-org/matomo/issues/11654#issuecomment-297730843
+  installPhase = ''
+    runHook preInstall
+
+    # copy evertything to share/, used as webroot folder, and then remove what's known to be not needed
+    mkdir -p $out/share
+    cp -ra * $out/share/
+    # tmp/ is created by matomo in PIWIK_USER_PATH
+    rmdir $out/share/tmp
+    # config/ needs to be copied to PIWIK_USER_PATH anyway
+    mv $out/share/config $out/
+
+    makeWrapper ${php}/bin/php $out/bin/matomo-console \
+      --add-flags "$out/share/console"
+
+    runHook postInstall
+  '';
+
+  meta = with stdenv.lib; {
+    description = "A real-time web analytics application";
+    license = licenses.gpl3Plus;
+    homepage = https://matomo.org/;
+    platforms = platforms.all;
+    maintainers = [ maintainers.florianjacob ];
+  };
+}

pkgs/servers/web-apps/matomo/make-localhost-default-database-host.patch

···
+diff --git a/plugins/Installation/FormDatabaseSetup.php b/plugins/Installation/FormDatabaseSetup.php
+index 9364f49870..2625cbb91b 100644
+--- a/plugins/Installation/FormDatabaseSetup.php
++++ b/plugins/Installation/FormDatabaseSetup.php
+@@ -82,7 +82,7 @@ class FormDatabaseSetup extends QuickForm2
+ 
+         // default values
+         $this->addDataSource(new HTML_QuickForm2_DataSource_Array(array(
+-                                                                       'host'          => '127.0.0.1',
++                                                                       'host'          => 'localhost',
+                                                                        'type'          => $defaultDatabaseType,
+                                                                        'tables_prefix' => 'matomo_',
+                                                                   )));

pkgs/servers/web-apps/piwik/default.nix

···
-{ stdenv, fetchurl, makeWrapper, php }:
-
-stdenv.mkDerivation rec {
-  name = "piwik-${version}";
-  version = "3.2.1";
-
-  src = fetchurl {
-    url = "https://builds.piwik.org/${name}.tar.gz";
-    sha512 = "1yisgywz7dm6kygh9mc207xnqpvdxbw4pa2l9gjh495a6979x3chi7z5rf410z4dmrg0kbj8wqm8mmmslfn276xvw37l2d4h73ij1h2";
-  };
-
-  nativeBuildInputs = [ makeWrapper ];
-
-  # regarding the 127.0.0.1 substitute:
-  #   This replaces the default value of the database server field.
-  #   unix socket authentication only works with localhost,
-  #   but password-based SQL authentication works with both.
-  postPatch = ''
-    substituteInPlace plugins/Installation/FormDatabaseSetup.php \
-      --replace "=> '127.0.0.1'," "=> 'localhost',"
-    cp ${./bootstrap.php} bootstrap.php
-  '';
-
-  # TODO: Move more unnecessary files from share/, especially using PIWIK_INCLUDE_PATH.
-  #       See https://forum.piwik.org/t/bootstrap-php/5926/10 and
-  #       https://github.com/piwik/piwik/issues/11654#issuecomment-297730843
-  installPhase = ''
-    runHook preInstall
-
-    # copy evertything to share/, used as webroot folder, and then remove what's known to be not needed
-    mkdir -p $out/share
-    cp -ra * $out/share/
-    # tmp/ is created by piwik in PIWIK_USER_PATH
-    rmdir $out/share/tmp
-    # config/ needs to be copied to PIWIK_USER_PATH anyway
-    mv $out/share/config $out/
-
-    makeWrapper ${php}/bin/php $out/bin/piwik-console \
-      --add-flags "$out/share/console"
-
-    runHook postInstall
-  '';
-
-  meta = with stdenv.lib; {
-    description = "A real-time web analytics application";
-    license = licenses.gpl3Plus;
-    homepage = https://piwik.org/;
-    platforms = platforms.all;
-    maintainers = [ maintainers.florianjacob ];
-  };
-}

pkgs/top-level/aliases.nix

···
   m3d-linux = m33-linux; # added 2016-08-13
   manpages = man-pages; # added 2015-12-06
   man_db = man-db; # added 2016-05
+  piwik = matomo; # added 2018-01-16
   midoriWrapper = midori; # added 2015-01
   minc_tools = minc-tools; # 2017-12
   mlt-qt5 = libsForQt5.mlt;  # added 2015-12-19

pkgs/top-level/all-packages.nix

···
 
   shaarli-material = callPackage ../servers/web-apps/shaarli/material-theme.nix { };
 
-  piwik = callPackage ../servers/web-apps/piwik { };
+  matomo = callPackage ../servers/web-apps/matomo { };
 
   axis2 = callPackage ../servers/http/tomcat/axis2 { };