Merge remote-tracking branch 'prism/master'

14 files changed, 150 insertions, 81 deletions

diff --git a/krebs/1systems/hotdog/config.nix b/krebs/1systems/hotdog/config.nix
index 18b751a7e..0a848426c 100644
--- a/krebs/1systems/hotdog/config.nix
+++ b/krebs/1systems/hotdog/config.nix
@@ -15,6 +15,7 @@
     <stockholm/krebs/2configs/ircd.nix>
     <stockholm/krebs/2configs/reaktor-retiolum.nix>
     <stockholm/krebs/2configs/reaktor-krebs.nix>
+    <stockholm/krebs/2configs/repo-sync.nix>
   ];
 
   krebs.build.host = config.krebs.hosts.hotdog;
diff --git a/krebs/1systems/onebutton/source.nix b/krebs/1systems/onebutton/source.nix
index 6842bfaab..91a998de7 100644
--- a/krebs/1systems/onebutton/source.nix
+++ b/krebs/1systems/onebutton/source.nix
@@ -1,11 +1,8 @@
 with import <stockholm/lib>;
 let
   pkgs = import <nixpkgs> {};
-  nixpkgs = pkgs.fetchFromGitHub {
-    owner = "nixos";
-    repo = "nixpkgs-channels";
-    rev = "nixos-unstable"; # only binary cache for unstable arm6
-    sha256 = "1rqzh475xn43phagrr30lb0fd292c1s8as53irihsnd5wcksnbyd";
+  nixpkgs = builtins.fetchTarball {
+    url = https://github.com/NixOS/nixpkgs-channels/archive/nixos-unstable.tar.gz;
   };
 in import <stockholm/krebs/source.nix> {
   name = "onebutton";
diff --git a/krebs/2configs/news-spam.nix b/krebs/2configs/news-spam.nix
index a3f39b40e..88b7e1072 100644
--- a/krebs/2configs/news-spam.nix
+++ b/krebs/2configs/news-spam.nix
@@ -7,7 +7,6 @@
       [SPAM]aje|http://www.aljazeera.com/Services/Rss/?PostingId=2007731105943979989|#snews
       [SPAM]allafrica|http://allafrica.com/tools/headlines/rdf/latest/headlines.rdf|#snews
       [SPAM]antirez|http://antirez.com/rss|#snews
-      [SPAM]arbor|http://feeds2.feedburner.com/asert/|#snews
       [SPAM]archlinux|http://www.archlinux.org/feeds/news/|#snews
       [SPAM]ars|http://feeds.arstechnica.com/arstechnica/index?format=xml|#snews
       [SPAM]augustl|http://augustl.com/atom.xml|#snews
@@ -131,7 +130,6 @@
       [SPAM]slashdot|http://rss.slashdot.org/Slashdot/slashdot|#snews
       [SPAM]slate|http://feeds.slate.com/slate|#snews
       [SPAM]spiegel_eil|http://www.spiegel.de/schlagzeilen/eilmeldungen/index.rss|#snews
-      [SPAM]spiegelfechter|http://feeds.feedburner.com/DerSpiegelfechter?format=xml|#snews
       [SPAM]spiegel_top|http://www.spiegel.de/schlagzeilen/tops/index.rss|#snews
       [SPAM]standardmedia_ke|http://www.standardmedia.co.ke/rss/headlines.php|#snews
       [SPAM]stern|http://www.stern.de/feed/standard/all/|#snews
@@ -146,7 +144,6 @@
       [SPAM]the_insider|http://www.theinsider.org/rss/news/headlines-xml.asp|#snews
       [SPAM]tigsource|http://www.tigsource.com/feed/|#snews
       [SPAM]tinc|http://tinc-vpn.org/news/index.rss|#snews
-      [SPAM]topix_b|http://www.topix.com/rss/wire/de/berlin|#snews
       [SPAM]torr_bits|http://feeds.feedburner.com/TorrentfreakBits|#snews
       [SPAM]torrentfreak|http://feeds.feedburner.com/Torrentfreak|#snews
       [SPAM]torr_news|http://feed.torrentfreak.com/Torrentfreak/|#snews
@@ -160,7 +157,6 @@
       [SPAM]us_math_society|http://www.ams.org/cgi-bin/content/news_items.cgi?rss=1|#snews
       [SPAM]vimperator|https://sites.google.com/a/vimperator.org/www/blog/posts.xml|#snews
       [SPAM]weechat|http://dev.weechat.org/feed/atom|#snews
-      [SPAM]wp_world|http://feeds.washingtonpost.com/rss/rss_blogpost|#snews
       [SPAM]xkcd|https://xkcd.com/rss.xml|#snews
       [SPAM]zdnet|http://www.zdnet.com/news/rss.xml|#snews
     '';
diff --git a/krebs/2configs/reaktor-retiolum.nix b/krebs/2configs/reaktor-retiolum.nix
index b32d39b7e..d5f1851e3 100644
--- a/krebs/2configs/reaktor-retiolum.nix
+++ b/krebs/2configs/reaktor-retiolum.nix
@@ -10,6 +10,9 @@ with import <stockholm/lib>;
     };
     plugins = with pkgs.ReaktorPlugins; [
       sed-plugin
+      task-add
+      task-delete
+      task-list
     ] ++
       (attrValues (todo "agenda"))
     ;
diff --git a/krebs/2configs/repo-sync.nix b/krebs/2configs/repo-sync.nix
index 48da88a8d..7c3b2c90e 100644
--- a/krebs/2configs/repo-sync.nix
+++ b/krebs/2configs/repo-sync.nix
@@ -5,76 +5,156 @@ with import <stockholm/lib>;
 let
   mirror = "git@${config.networking.hostName}:";
 
-  defineRepo = name: announce: let
+  defineRepo = {
+    name, desc, section
+  }:
+  let
     repo = {
       public = true;
       name = mkDefault "${name}";
-      cgit.desc = mkDefault "mirror for ${name}";
-      cgit.section = mkDefault "mirror";
-      hooks = mkIf announce (mkDefault {
+      cgit.desc = desc;
+      cgit.section = section;
+      hooks = mkDefault {
         post-receive = pkgs.git-hooks.irc-announce {
           nick = config.networking.hostName;
           verbose = false;
           channel = "#xxx";
           server = "irc.r";
-          branches = [ "master" ];
+          branches = [ "newest" ];
         };
-      });
+      };
     };
   in {
-    rules = with git; singleton {
-      user = with config.krebs.users; [
-        config.krebs.users."${config.networking.hostName}-repo-sync"
-      ];
-      repo = [ repo ];
-      perm = push ''refs/*'' [ non-fast-forward create delete merge ];
-    };
+    rules = with git; [
+      {
+        user = with config.krebs.users; [
+          config.krebs.users."${config.networking.hostName}-repo-sync"
+          jeschli
+          lass
+          makefu
+          tv
+        ];
+        repo = [ repo ];
+        perm = push ''refs/*'' [ non-fast-forward create delete merge ];
+      }
+      {
+        user = attrValues config.krebs.users;
+        repo = [ repo ];
+        perm = fetch;
+      }
+    ];
     repos."${name}" = repo;
   };
 
-  sync-retiolum = name:
+  sync-retiolum = {
+    name,
+    desc ? "mirror for ${name}",
+    section ? "mirror"
+  }:
     {
       krebs.repo-sync.repos.${name} = {
         branches = {
-          makefu = {
-            origin.url = "http://cgit.gum/${name}";
+          lassulus = {
+            origin.url = "http://cgit.lassul.us/${name}";
             mirror.url = "${mirror}${name}";
           };
-          tv = {
-            origin.url = "http://cgit.ni.r/${name}";
+          makefu = {
+            origin.url = "http://cgit.gum/${name}";
             mirror.url = "${mirror}${name}";
           };
           nin = {
             origin.url = "http://cgit.onondaga.r/${name}";
             mirror.url = "${mirror}${name}";
           };
-          lassulus = {
-            origin.url = "http://cgit.lassul.us/${name}";
+          tv = {
+            origin.url = "http://cgit.ni.r/${name}";
             mirror.url = "${mirror}${name}";
           };
         };
         latest = {
           url = "${mirror}${name}";
-          ref = "heads/master";
+          ref = "heads/newest";
         };
       };
-      krebs.git = defineRepo name false;
+      krebs.git = defineRepo { inherit name desc section; };
+    };
+
+  sync-remote = {
+    name,
+    url,
+    desc ? "mirror for ${name}",
+    section ? "mirror"
+  }:
+    {
+      krebs.repo-sync.repos.${name} = {
+        branches = {
+          remote = {
+            origin.url = url;
+            mirror.url = "${mirror}${name}";
+          };
+        };
+      };
+      krebs.git = defineRepo { inherit name desc section; };
     };
 
 in {
-  krebs.repo-sync = {
-    enable = true;
-  };
   krebs.git = {
-    enable = mkDefault true;
-    cgit = {
-      settings = {
-        root-title = "Shared Repos";
-        root-desc = "keep on krebsing";
-      };
+    enable = true;
+    cgit.settings = {
+      root-title = "krebs repos";
+      root-desc = "keep calm and engage";
     };
   };
+  krebs.repo-sync = {
+    enable = true;
+  };
   imports = [
-    (sync-retiolum "stockholm")
+    (sync-retiolum { name = "the_playlist"; desc = "Good Music collection + tools"; section = "art"; })
+
+    (sync-retiolum { name = "stockholm"; desc = "take all computers hostage, they love it"; section = "configuration"; })
+
+    (sync-retiolum { name = "cholerab"; desc = "krebs thesauron & enterprise-patterns"; section = "documentation"; })
+
+    (sync-retiolum { name = "disko"; desc = "take a description of your disk layout and produce a format script"; section = "software"; })
+    (sync-retiolum { name = "news"; desc = "take a rss feed and a timeout and print it to stdout"; section = "software"; })
+    (sync-retiolum { name = "krops"; desc = "krebs ops"; section = "software"; })
+    (sync-retiolum { name = "go"; desc = "url shortener"; section = "software"; })
+    (sync-retiolum { name = "much"; desc = "curses email client"; section = "software"; })
+    (sync-retiolum { name = "newsbot-js"; desc = "irc rss/atom bot"; section = "software"; })
+    (sync-retiolum { name = "nix-writers"; desc = "high level writers for nix"; section = "software"; })
+
+    (sync-retiolum { name = "cac-api"; desc = "CloudAtCost API command line interface"; section = "miscellaneous"; })
+    (sync-retiolum { name = "dic"; desc = "dict.leo.org command line interface"; section = "miscellaneous"; })
+    (sync-retiolum { name = "get"; section = "miscellaneous"; })
+    (sync-retiolum { name = "hstool"; desc = "Haskell Development Environment ^_^"; section = "miscellaneous"; })
+    (sync-retiolum { name = "htgen"; desc = "toy HTTP server"; section = "miscellaneous"; })
+    (sync-retiolum { name = "kirk"; desc = "IRC tools"; section = "miscellaneous"; })
+    (sync-retiolum { name = "load-env"; section = "miscellaneous"; })
+    (sync-retiolum { name = "loldns"; desc = "toy DNS server"; section = "miscellaneous"; })
+    (sync-retiolum { name = "netcup"; desc = "netcup command line interface"; section = "miscellaneous"; })
+    (sync-retiolum { name = "populate"; desc = "source code installer"; section = "miscellaneous"; })
+    (sync-retiolum { name = "q"; section = "miscellaneous"; })
+    (sync-retiolum { name = "regfish"; section = "miscellaneous"; })
+    (sync-retiolum { name = "soundcloud"; desc = "SoundCloud command line interface"; section = "miscellaneous"; })
+
+    (sync-retiolum { name = "blessings"; section = "Haskell libraries"; })
+    (sync-retiolum { name = "mime"; section = "Haskell libraries"; })
+    (sync-retiolum { name = "quipper"; section = "Haskell libraries"; })
+    (sync-retiolum { name = "scanner"; section = "Haskell libraries"; })
+    (sync-retiolum { name = "wai-middleware-time"; section = "Haskell libraries"; })
+    (sync-retiolum { name = "web-routes-wai-custom"; section = "Haskell libraries"; })
+    (sync-retiolum { name = "xintmap"; section = "Haskell libraries"; })
+    (sync-retiolum { name = "xmonad-stockholm"; desc = "krebs xmonad modules"; section = "Haskell libraries"; })
+
+    (sync-remote { name = "array"; url = "https://github.com/makefu/array"; })
+    (sync-remote { name = "email-header"; url = "https://github.com/4z3/email-header"; })
+    (sync-remote { name = "mycube-flask"; url = "https://github.com/makefu/mycube-flask"; })
+    (sync-remote { name = "reaktor-titlebot"; url = "https://github.com/makefu/reaktor-titlebot"; })
+    (sync-remote { name = "repo-sync"; url = "https://github.com/makefu/repo-sync"; })
+    (sync-remote { name = "skytraq-datalogger"; url = "https://github.com/makefu/skytraq-datalogger"; })
+    (sync-remote { name = "realwallpaper"; url = "https://github.com/lassulus/realwallpaper"; })
+    (sync-remote { name = "painload"; url = "https://github.com/krebs/painload"; })
+    (sync-remote { name = "Reaktor"; url = "https://github.com/krebs/Reaktor"; })
+    (sync-remote { name = "nixos-wiki"; url = "https://github.com/Mic92/nixos-wiki.wiki.git"; })
   ];
 }
diff --git a/krebs/3modules/lass/default.nix b/krebs/3modules/lass/default.nix
index e2322e171..c4a5bbb0d 100644
--- a/krebs/3modules/lass/default.nix
+++ b/krebs/3modules/lass/default.nix
@@ -301,37 +301,6 @@ with import <stockholm/lib>;
       ssh.privkey.path = <secrets/ssh.id_ed25519>;
       ssh.pubkey = "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIEB/MmASvx3i09DY1xFVM5jOhZRZA8rMRqtf8bCIkC+t";
     };
-    helios = {
-      cores = 8;
-      nets = {
-        retiolum = {
-          ip4.addr = "10.243.133.117";
-          ip6.addr = "42:0:0:0:0:0:3:7105";
-          aliases = [
-            "helios.r"
-            "cgit.helios.r"
-          ];
-          tinc.pubkey = ''
-            -----BEGIN RSA PUBLIC KEY-----
-            MIICCgKCAgEAp+SRmP5MoCSYInx4Dm5MLZzNyXVgfo/CDoeUlUT35X0yE7WHGWsG
-            wHPCu+3RWfBUjuqNdb0qiGtRi3Q/LwznwBROPOX8gMXia/DgCLbIjn5Rx081pTIo
-            3epbUCFtNgyDWg8IHF87ZnVBXTYAy5g4tz9u8kw82D8mR18o595TuZ9t5pDc/Kvi
-            fPHZenT6cd6FtL9uankX/jan1PRP9xTrhpE8dAQ6g+7XH7knMK3cno/Ztis5YzHt
-            Ith0bsIjk5of7hhITj0MXtTikjDqWxkpF5mfOK1cG/rC1goTmB9AfcENUBnu9iAM
-            I/alzqk3CEczznLyaOckfx2fRuar912LAdiJ5v7VPztfvN1p3gIxq5M0Rgkq+98B
-            H/s32xNRBPvqoIleKnhwE9gfrCLaAVqpaMkgKRvgsTkSDNYNhh4smQ3eAKKwwDH/
-            QG3sfP8xyNyDFhBtCiDGkf9hNqBBMaKjZoh8DasZNtcfOop3fGw7jmUUbB6cG8cp
-            +EfYbcb5mVpmrIyXgOTwwYcp7tn+zkd4Wa8C9Q98eFTs0HGVGxGX9Hj6PM/kXK4C
-            aIqIQVNpnJ/9cOwT8JFIriG1MWTOXbamUusKTLs8SRp3ZkyM7XUEcLL5HMh09rUw
-            rzEAmE7TywXVhd7j2IaEy+bx2dfGQH2bFoh6Drm6Olo+ySi1utB5dGkCAwEAAQ==
-            -----END RSA PUBLIC KEY-----
-          '';
-        };
-      };
-      secure = true;
-      ssh.privkey.path = <secrets/ssh.id_ed25519>;
-      ssh.pubkey = "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIIqpx9jJnn4QMGO8BOrGOLRN1rgpIkR14sQb8S+otWEL";
-    };
     littleT = {
       cores = 2;
       nets = {
diff --git a/krebs/3modules/lass/ssh/android.rsa b/krebs/3modules/lass/ssh/android.rsa
index f5190f45c..3d35b76e4 100644
--- a/krebs/3modules/lass/ssh/android.rsa
+++ b/krebs/3modules/lass/ssh/android.rsa
@@ -1 +1 @@
-ssh-rsa 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 lass-android@XperiaXCompact
+ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIOPH4c2zQCaCmus4T9GvaY1lrgVR9CKV3Fx1vRn1K1XB u0_a194@android
diff --git a/krebs/3modules/makefu/default.nix b/krebs/3modules/makefu/default.nix
index c5404f96d..9630d7a7f 100644
--- a/krebs/3modules/makefu/default.nix
+++ b/krebs/3modules/makefu/default.nix
@@ -336,7 +336,6 @@ with import <stockholm/lib>;
         "krebsco.de" = ''
           euer              IN MX 1   aspmx.l.google.com.
           nixos.unstable    IN CNAME  krebscode.github.io.
-          gold              IN A      ${nets.internet.ip4.addr}
           boot              IN A      ${nets.internet.ip4.addr}
         '';
       };
@@ -522,6 +521,13 @@ with import <stockholm/lib>;
     };
     nextgum = rec {
       ci = true;
+      extraZones = {
+        "krebsco.de" = ''
+          cache.euer        IN A      ${nets.internet.ip4.addr}
+          cache.gum         IN A      ${nets.internet.ip4.addr}
+          gold              IN A      ${nets.internet.ip4.addr}
+        '';
+      };
       cores = 8;
       nets = rec {
         internet = {
@@ -537,6 +543,7 @@ with import <stockholm/lib>;
           ip6.addr = "42:f9f0:0000:0000:0000:0000:0000:70d3";
           aliases = [
             "nextgum.r"
+            "cache.gum.r"
           ];
           tinc.pubkey = ''
             -----BEGIN RSA PUBLIC KEY-----
diff --git a/krebs/3modules/rtorrent.nix b/krebs/3modules/rtorrent.nix
index b7ef824b5..09e552010 100644
--- a/krebs/3modules/rtorrent.nix
+++ b/krebs/3modules/rtorrent.nix
@@ -29,7 +29,7 @@ let
     ''}
 
     ${optionalString (cfg.watchDir != null) ''
-      schedule = watch_directory,5,5,load_start=${cfg.watchDir}/*.torrent
+      directory.watch.added = "${cfg.watchDir}", load.start_verbose
     ''}
 
     directory = ${cfg.downloadDir}
diff --git a/krebs/5pkgs/haskell/xmonad-stockholm.nix b/krebs/5pkgs/haskell/xmonad-stockholm.nix
index 954cfd76a..7f6bb299d 100644
--- a/krebs/5pkgs/haskell/xmonad-stockholm.nix
+++ b/krebs/5pkgs/haskell/xmonad-stockholm.nix
@@ -1,16 +1,16 @@
-{ mkDerivation, base, containers, fetchgit, stdenv, X11, X11-xshape
+{ mkDerivation, base, containers, fetchgit, stdenv, X11, X11-xft, X11-xshape
 , xmonad, xmonad-contrib
 }:
 mkDerivation rec {
   pname = "xmonad-stockholm";
-  version = "1.1.1";
+  version = "1.2.0";
   src = fetchgit {
     url = http://cgit.ni.krebsco.de/xmonad-stockholm;
     rev = "refs/tags/v${version}";
-    sha256 = "05nnfg6q35z3qgf507qa80bz32jl4k719dl5phlmchplp3769585";
+    sha256 = "13mvmh3kk9a79l1nii028p0n7l95pb78wz9c4j42l90m02mg6cis";
   };
   libraryHaskellDepends = [
-    base containers X11 X11-xshape xmonad xmonad-contrib
+    base containers X11 X11-xft X11-xshape xmonad xmonad-contrib
   ];
   license = stdenv.lib.licenses.mit;
 }
diff --git a/krebs/5pkgs/simple/Reaktor/plugins.nix b/krebs/5pkgs/simple/Reaktor/plugins.nix
index db578c457..c6e601475 100644
--- a/krebs/5pkgs/simple/Reaktor/plugins.nix
+++ b/krebs/5pkgs/simple/Reaktor/plugins.nix
@@ -165,7 +165,7 @@ rec {
   };
 
   task-delete = buildSimpleReaktorPlugin "task-delete" {
-    pattern = "^task-remove: (?P<args>.*)$$";
+    pattern = "^task-delete: (?P<args>.*)$$";
     script = pkgs.writeDash "task-delete" ''
         ${pkgs.taskwarrior}/bin/task rc:${taskrcFile} delete "$*"
       '';
diff --git a/krebs/krops.nix b/krebs/krops.nix
index 861f2d323..c334bc07d 100644
--- a/krebs/krops.nix
+++ b/krebs/krops.nix
@@ -12,7 +12,7 @@
 
   krebs-source = {
     nixpkgs.git = {
-      ref = "56fad146a12a6f934d1d5ef875eb729be1b19129";
+      ref = (lib.importJSON ./nixpkgs.json).rev;
       url = https://github.com/NixOS/nixpkgs;
     };
     stockholm.file = toString ../.;
diff --git a/krebs/nixpkgs.json b/krebs/nixpkgs.json
new file mode 100644
index 000000000..13bed8bfe
--- /dev/null
+++ b/krebs/nixpkgs.json
@@ -0,0 +1,7 @@
+{
+  "url": "https://github.com/NixOS/nixpkgs-channels",
+  "rev": "4df3426f5a5e78cef4835897a43abd9e2a092b74",
+  "date": "2018-08-19T09:20:40+02:00",
+  "sha256": "05k5mssiqxffxi45mss9wjns6k76i248rpasa48akdcriry1mp63",
+  "fetchSubmodules": true
+}
diff --git a/krebs/update-channel.sh b/krebs/update-channel.sh
new file mode 100755
index 000000000..47d3f29c4
--- /dev/null
+++ b/krebs/update-channel.sh
@@ -0,0 +1,9 @@
+#!/bin/sh
+dir=$(dirname $0)
+oldrev=$(cat $dir/nixpkgs.json | jq -r .rev | sed 's/\(.\{7\}\).*/\1/')
+nix-shell -p nix-prefetch-git --run 'nix-prefetch-git \
+  --url https://github.com/NixOS/nixpkgs-channels \
+  --rev refs/heads/nixos-18.03' \
+> $dir/nixpkgs.json
+newrev=$(cat $dir/nixpkgs.json | jq -r .rev | sed 's/\(.\{7\}\).*/\1/')
+git commit $dir/nixpkgs.json -m "nixpkgs: $oldrev -> $newrev"