Merge branch 'master' of prism:stockholm

57 files changed, 979 insertions, 333 deletions

diff --git a/.gitignore b/.gitignore
index 1ce082113..e1c6ef949 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1 +1,2 @@
 /.graveyard
+/TODO
diff --git a/.rsync-filter b/.rsync-filter
index 364a79864..67ec05fc3 100644
--- a/.rsync-filter
+++ b/.rsync-filter
@@ -1,3 +1,4 @@
 - /.git
 - /.graveyard
+- /TODO
 P /.version-suffix
diff --git a/krebs/1systems/wolf/config.nix b/krebs/1systems/wolf/config.nix
index 91aabb716..21ae20ea0 100644
--- a/krebs/1systems/wolf/config.nix
+++ b/krebs/1systems/wolf/config.nix
@@ -1,6 +1,7 @@
 { config, pkgs, ... }:
 let
   shack-ip = config.krebs.build.host.nets.shack.ip4.addr;
+  influx-host = "127.0.0.1";
 in
 {
   imports = [
@@ -23,6 +24,58 @@ in
     <stockholm/krebs/2configs/shack/muell_caller.nix>
     <stockholm/krebs/2configs/shack/radioactive.nix>
     <stockholm/krebs/2configs/shack/share.nix>
+    {
+      systemd.services.telegraf.path = [ pkgs.net_snmp ]; # for snmptranslate
+      #systemd.services.telegraf.environment = {
+      #  "MIBDIRS" : ""; # extra mibs like ADSL
+      #};
+      services.telegraf = {
+        enable = true;
+        extraConfig = {
+          inputs = {
+            snmp = {
+              agents = [ "10.0.1.3:161" ];
+              version = 2;
+              community = "shack";
+              name = "snmp";
+              field = [
+                {
+                  name = "hostname";
+                  oid = "RFC1213-MIB::sysName.0";
+                  is_tag = true;
+                }
+                {
+                  name = "load-percent"; #cisco
+                  oid = ".1.3.6.1.4.1.9.9.109.1.1.1.1.4.9";
+                }
+                {
+                  name = "uptime";
+                  oid = "DISMAN-EVENT-MIB::sysUpTimeInstance";
+                }
+              ];
+              table = [{
+                name = "snmp";
+                inherit_tags = [ "hostname" ];
+                oid = "IF-MIB::ifXTable";
+                field = [{
+                  name = "ifName";
+                  oid = "IF-MIB::ifName";
+                  is_tag = true;
+                }];
+              }];
+            };
+          };
+          outputs = {
+            influxdb = {
+              urls = [ "http://${influx-host}:8086" ];
+              database = "telegraf";
+              write_consistency = "any";
+              timeout = "5s";
+            };
+          };
+        };
+      };
+    }
 
   ];
   # use your own binary cache, fallback use cache.nixos.org (which is used by
@@ -86,6 +139,9 @@ in
   boot.loader.grub.version = 2;
   boot.loader.grub.device = "/dev/vda";
 
+  # without it `/nix/store` is not added grub paths
+  boot.loader.grub.copyKernels = true;
+
   fileSystems."/" = { device = "/dev/disk/by-label/nixos"; fsType = "ext4"; };
 
   swapDevices = [
@@ -100,6 +156,7 @@ in
   users.extraUsers.root.openssh.authorizedKeys.keys = [
     config.krebs.users.ulrich.pubkey
     config.krebs.users.makefu-omo.pubkey
+    "ssh-rsa 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 root@plattenschwein" # for backup
   ];
 
   time.timeZone = "Europe/Berlin";
diff --git a/krebs/2configs/shack/muell_caller.nix b/krebs/2configs/shack/muell_caller.nix
index 2d8d78e33..7e8d278f6 100644
--- a/krebs/2configs/shack/muell_caller.nix
+++ b/krebs/2configs/shack/muell_caller.nix
@@ -6,8 +6,8 @@ let
     name = "muell_caller-2017-06-01";
     src = pkgs.fetchgit {
       url = "https://github.com/shackspace/muell_caller/";
-      rev = "bbd4009";
-      sha256 = "1bfnfl2vdh0p5wzyz5p48qh04vvsg2445avg86fzhzragx25fqv0";
+      rev = "ee4e499";
+      sha256 = "0q1v07q633sbqg4wkgf0zya2bnqrikpyjhzp05iwn2vcs8rvsi3k";
     };
     buildInputs = [
       (pkgs.python3.withPackages (pythonPackages: with pythonPackages; [
diff --git a/krebs/3modules/git.nix b/krebs/3modules/git.nix
index 93211d9d4..610c20bb4 100644
--- a/krebs/3modules/git.nix
+++ b/krebs/3modules/git.nix
@@ -186,6 +186,17 @@ let
     };
     repo = types.submodule ({ config, ... }: {
       options = {
+        admins = mkOption {
+          type = types.listOf types.user;
+          default = [];
+          description = ''
+            List of users that should be able to do everything with this repo.
+
+            This option is currently not used by krebs.git but instead can be
+            used to create rules.  See e.g. <stockholm/lass/2configs/git.nix> for
+            an example.
+          '';
+        };
         cgit = {
           desc = mkOption {
             type = types.nullOr types.str;
diff --git a/krebs/3modules/lass/default.nix b/krebs/3modules/lass/default.nix
index 4e2d6df99..ca3c8b45b 100644
--- a/krebs/3modules/lass/default.nix
+++ b/krebs/3modules/lass/default.nix
@@ -34,6 +34,7 @@ with import <stockholm/lib>;
             HwgPw5pstabyrsDWXybSYUb+8LcZf+unGwIDAQAB
             -----END RSA PUBLIC KEY-----
           '';
+          tinc.port = 993;
         };
       };
       ssh.privkey.path = <secrets/ssh.id_ed25519>;
@@ -294,6 +295,37 @@ 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";
+    };
     iso = {
       ci = false;
       cores = 1;
@@ -349,6 +381,85 @@ with import <stockholm/lib>;
         };
       };
     };
+    eddie = {
+      ci = false;
+      external = true;
+      nets = {
+        retiolum = {
+          ip4.addr = "10.243.29.170";
+          ip6.addr = "42:4992:6a6d:700::1";
+          aliases = [ "eddie.r" ];
+          tinc.pubkey = ''
+            -----BEGIN RSA PUBLIC KEY-----
+            MIICCgKCAgEAuRQphRlSIC/aqRTfvStPdJOJCx1ACeFIDEjRdgoxuu32qoBl7i6d
+            j7Voh+Msditf2a5+f0fVsNDaPnjPGfk0NkZBjmn+RZQDRXk0krpTNj2Vb6W5quTm
+            3yrjJMFJR9CU5khfppc47X+ir8bjn7RusWTFNEuDvUswHmRmnJHLS3Y+utOaRbCF
+            2hxpyxCn423gpsaBfORPEK8X90nPbuNpFDugWPnC+R45TpNmIf4qyKvfhd9OKrua
+            KNanGHG30xhBW/DclUwwWi8D44d94xFnIRVcG1O+Uto93WoUWZn90lI1qywSj5Aq
+            iWstBK4tc7VwvAj0UzPlaRYYPfFjOEkPQzj8xC6l/leJcgxkup252uo6m1njMx3t
+            6QWMgevjqosY22OZReZfIwb14aDWFKLTWs30J+zmWK4TjlRITdsOEKxlpODMbJAD
+            kfSoPwuwkWIzFhNOrFiD/NtKaRYmV8bTBCT3a9cvvObshJx13BP+IUFzBS1N1n/u
+            hJWYH5WFsQZn/8rHDwZGkS1zKPEaNoydjqCZNyJpJ5nhggyl6gpuD7wpXM/8tFay
+            pAjRP40+qRQLUWXmswV0hsZTOX1tvZs4f68y3WJ+GwCWw9HvvwmzYes5ayJrPsbJ
+            lyK301Jb42wGEsVWxu3Eo/PLtp8OdD+Wdh6o/ELcc0k/YCUGFMujUM8CAwEAAQ==
+            -----END RSA PUBLIC KEY-----
+          '';
+        };
+      };
+    };
+    borg = {
+      ci = false;
+      external = true;
+      nets = {
+        retiolum = {
+          ip4.addr = "10.243.29.171";
+          ip6.addr = "42:4992:6a6d:700::2";
+          aliases = [ "borg.r" ];
+          tinc.pubkey = ''
+            -----BEGIN PUBLIC KEY-----
+            MIICIjANBgkqhkiG9w0BAQEFAAOCAg8AMIICCgKCAgEA0bHZApTM7Hl4qqNakSwq
+            bt7zJoTVK9ePoC3Mue1VmJ1mCKMaxKdzlO31kPeHtkilAzgyIJdgikyKFlApGsQL
+            aIuU9h55X7TbikoDD6ghbSrAe3Pgc+sJ3OZ7wO7Qb8CKgJvEbkk/u68YiJgyTjYD
+            HNjIQzlsGdpoSke9vwC8qWanfgN7c2MMGtakqfXDjYjCgp7O43i+SMupkMSXIXMA
+            5XUFh/vVp6xgPxBofcw0uQIyZ5v4PPFjnGPm4rnMbFzbhubntHjDadwGd5Niyw4O
+            zNNKNchTLfNiuNGqTZeYd0kJ5fNMKykhpSs+ou34MvexvpuyPlFuotnPXN/nOMml
+            3nwiqzthzPuBZRLswxT0WvlA8wlbeTOKJ0wTIR4dDuAF+euDtoNocVEN5PJNc7yN
+            fmwAV6geESoJbZQMSCtAp1NioaBlRPp1pFfoM/GotHywuFrTIxyoIBiYhkpWyQvq
+            WYw5j13IKqkL7jDchhoBmcardmh+AP5bL3uQ84BgaYNwFzHp04qIRrrdpF0eMaHB
+            /8zaqsNLn4/zQJB5ffkelwoIqfvLPQeCMLzHGHgP5xUnWgmZZGiiDLvhuaMeNq4U
+            EpCKoTL178sPOgNfHfd8mEqx0qKYuPrNQEdlpa5xOZqwx56pfYpGWY+KtF2FHLhS
+            iO64GCJqCi1MKBYx/NhaxKMCAwEAAQ==
+            -----END PUBLIC KEY-----
+          '';
+        };
+      };
+    };
+    inspector = {
+      ci = false;
+      external = true;
+      nets = {
+        retiolum = {
+          ip4.addr = "10.243.29.172";
+          ip6.addr = "42:4992:6a6d:800::1";
+          aliases = [ "inspector.r" ];
+          tinc.pubkey = ''
+            -----BEGIN RSA PUBLIC KEY-----
+            MIICCgKCAgEAr3l/u7qcxmFa2hUICU3oPDhB2ij2R3lKHyjSsVFVLNfl6TpOdppG
+            EDXOapeXL0s+PfBRHdRI3v/dibj4PG9eyKmFxsUJ2gRz4ghb1UE23aQ3pkr3x8sZ
+            7GR+nJYATYf+jolFF9O1x+f0Uo5xaYWkGOMH8wVVzm6+kcsZOYuTEbJAsbTRZywF
+            m1MdRfk54hLiDsj2rjGRZIR+ZfUKVs2MTWOLCpBAHLJK+r3HfUiR2nAgeNkJCFLw
+            WIir1ftDIViT3Ly6b7enaOkVZ695FNYdPWFZCE4AJI0s9wsbMClzUqCl+0mUkumd
+            eRXgWXkmvBsxR4GECnxUhxs6U8Wh3kbQavvemt4vcIKNhkw32+toYc1AFK/n4G03
+            OUJBbRqgJYx9wIvo8PEu4DTTdsPlQZnMwiaKsn+Gi4Ap6JAnG/iLN8sChoQf7Dau
+            ARZA3sf9CkKx5sZ+9dVrLbzGynKE18Z/ysvf1BLd/rVVOps1B/YRBxDwPj8MZJ0x
+            B7b0j+hRVV5palp3RRdcExuWaBrMQQGsXwLUZOFHJJaZUHF9XRdy+5XVJdNOArkG
+            q1+yGhosL1DLTQE/VwCxmBHyYTr3L7yZ2lSaeWdIeYvcRvouDROUjREVFrQjdqwj
+            7vIP1cvDxSSqA07h/xEC4YZKACBYc/PI2mqYK5dvAUG3mGrEsjHktPUCAwEAAQ==
+            -----END RSA PUBLIC KEY-----
+          '';
+        };
+      };
+    };
   };
   users = {
     lass = {
@@ -356,6 +467,10 @@ with import <stockholm/lib>;
       pubkey = builtins.readFile ./ssh/mors.rsa;
       pgp.pubkeys.default = builtins.readFile ./pgp/mors.pgp;
     };
+    lass-helios = {
+      mail = "lass@helios.r";
+      pubkey = builtins.readFile ./ssh/helios.rsa;
+    };
     lass-uriel = {
       mail = "lass@uriel.r";
       pubkey = builtins.readFile ./ssh/uriel.rsa;
diff --git a/krebs/3modules/lass/pgp/helios.pgp b/krebs/3modules/lass/pgp/helios.pgp
new file mode 100644
index 000000000..dc6d07d6b
--- /dev/null
+++ b/krebs/3modules/lass/pgp/helios.pgp
@@ -0,0 +1,51 @@
+-----BEGIN PGP PUBLIC KEY BLOCK-----
+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++ir7GHuxtNma58PS+BDiWJnIqmDJ029u188YM4dGL+EWF2AS4cUh2y6CZCOq77Gt
+NmMCZyQjg2KB1jsL5XHySB14/uN3vlSSz9V+ZT/sAK09Z4atfYNnMHBAbC00GSbH
+VqQf+OIascVZWAzqExk4fjnVYjTaoIZHaNd5aT/61S25Ag0EWb/wPQEQAJwoiiHG
+NhuBFBEjZYJsONfJayGE4qWSU//54gJaitSgDLV8G0NYQrxqSNAZMAux6g9BSSrD
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+uL4fY8x8M2d9G4U03DfQDGP9JUskqLThnJf7Jo42XTmkJd9hRBL0kMCIfolEcyEh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+=gkzg
+-----END PGP PUBLIC KEY BLOCK-----
diff --git a/krebs/3modules/lass/ssh/helios.rsa b/krebs/3modules/lass/ssh/helios.rsa
new file mode 100644
index 000000000..58f81726c
--- /dev/null
+++ b/krebs/3modules/lass/ssh/helios.rsa
@@ -0,0 +1 @@
+ssh-rsa AAAAB3NzaC1yc2EAAAADAQABAAAEZgGZE0z5+0A42GHI2VYrN9Ra60EwlKqARZUi9e0pbiQxwKi42Y3+Jy2UIAB9rUW51Pw0K6L2FzHZyk9w4fMWjAB+OSaGi8CViGOrBmP8Xm0TSd6a725RSOKTH1jv4u54W6+VQcZpe4RepsuasvN4Rd3FYz1O0ffiroPYS0Hs7ui3HG5rZZsz+FArJ/s2mL525P9VQwMlCAdrepWXgGSPSa/ogmhMCSRttV5R0WCnvXYA4aq45scxjxIWXu/Y/FggslSpRGEnRChHiua5kPWqREC1eNbMOjYJc7OxDIZjzcwHcDHH3U1oIBEjNY8UqMFy3t87cm0BTH9yA6qQnkexCmbRGA0mnAJ1XskgL6KcZuYw+zRo6zVmnZCgRyheenBJhQy/28ZDSwCDBOayl6tAbWivesUZb0/nqucvbdRxTDd6nbSH8q8Cp1qZvP1yrhZ9X2m4Rm66UenHOPOEiyOoVQgfYb2EFHsYVN62shGcfaaL8g4rjUXsUJEheGX5ll5MOMSclUhI8Zk31APq/xuLGGIn+tipjOSX2OVZrSE+KkgitMxOOF1kx33IQGnBKQD8K/a9vVmpTrTAnfXR5oJrXp+XRZ3viXr0rUkG5KfS/zjL8ZC8ckeSkX75BLbPbimUa6TfA/lddipb76zOOOREiD4Sw+MkGDh5xnzwxMY05fjOUmk/v++WcOTTNyrknygdaC8Qx0Gv4Wxmcd+LzmIc5wZZjenwYhp4KpR55EIP966uBUcD+HlkHZnNNZUzOJA8NE+oPQbaM3qCuThe9q9hVYt08/rZ9ANwgb/ChCwEOYLNnofdgrvDb91qenwEUiE9wy79Dwgqh2SRAMN4ZTxRrVjw3potBMRuNc5HMDDXbKfGF1T6O+vBPpcQ8x+rztBDpF/lqjGqoCqyFNG/VnFHFZ5kjLkLmx6S69iRL7wg/KI1NA14tdSLJZ2qDqo5n8rbnGeAWTQB8ZgzhPO39fyOYGCdTJ8e2dIDEw8SUWaVsTnkc/PHOcGAMt2LrL6USszrLSQgU4ediPBWJjX4jk2wxLRPyBz8Z2QLWrsxV0bh1CstIsbBh1p8jMXAKJ+UXqzRWGR5T6d7lensqM0/uWqzu++w6/whQQh9Hzs6GX8l+ELMn0szkRaM9dZpAz5p9HHdYkANwsIIe8CPznRvudQ0CPManTQsjR8GZ3RjGx002VUdbDh5xx7P9Efsa6m8kkNCbUNMSHjmvC9M2sR5ww2WsnvpGBCU8sNYf4y9QvKI1LIYkG1MObhEKHyf5wxFp25bwHyxPkHGULhJKM/MdDT42flddEJCTEwiCPVuaJsr7Adr6Oni4kzY+S7CiP7YArM0v2Vg9mgVmi11koF9hcZ6zyyKAWVviDRLVIA0/eY66T/FiSS/g12zW1keuhFipNEWyZdD/r8LwfDpInAAqN5g65dx6eoyoB6AZatEwwsnn6zcDP51B1q0TC9Y+TXK5TSBE50oFxa2SLu4Gj7YOi1AoRqKxSPVktE= lass@helios
diff --git a/krebs/3modules/tv/default.nix b/krebs/3modules/tv/default.nix
index 79fa27bad..e80becfa7 100644
--- a/krebs/3modules/tv/default.nix
+++ b/krebs/3modules/tv/default.nix
@@ -32,52 +32,6 @@ with import <stockholm/lib>;
       ssh.privkey.path = <secrets/ssh.id_rsa>;
       ssh.pubkey = "ssh-rsa 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";
     };
-    cd = {
-      ci = true;
-      cores = 2;
-      extraZones = {
-        # TODO generate krebsco.de zone from nets and don't use extraZones at all
-        "krebsco.de" = ''
-          cd          60 IN A ${config.krebs.hosts.cd.nets.internet.ip4.addr}
-        '';
-      };
-      nets = {
-        internet = {
-          ip4.addr = "45.62.237.203";
-          aliases = [
-            "cd.i"
-            "cd.krebsco.de"
-          ];
-          ssh.port = 11423;
-        };
-        retiolum = {
-          via = config.krebs.hosts.cd.nets.internet;
-          ip4.addr = "10.243.113.222";
-          ip6.addr = "42:4522:25f8:36bb:8ccb:150:231a:2af3";
-          aliases = [
-            "cd.r"
-            "cgit.cd.r"
-          ];
-          tinc.pubkey = ''
-            -----BEGIN RSA PUBLIC KEY-----
-            MIICCgKCAgEAvmCBVNKT/Su4v9nl/Nm3STPo5QxWPg7xEkzIs3Oh39BS8+r6/7UQ
-            rebib7mczb+ebZd+Rg2yFoGrWO8cmM0VcLy5bYRMK7in8XroLEjWecNNM4TRfNR4
-            e53+LhcPdkxo0A3/D+yiut+A2Mkqe+4VXDm/JhAiAYkZTn7jUtj00Atrc7CWW1gN
-            sP3jIgv4+CGftdSYOB4dm699B7OD9XDLci2kOaFqFl4cjDYUok03G0AduUlRx10v
-            CKbKOTIdm8C36A902/3ms+Hyzkruu+VagGIZuPSwqXHJPCu7Ju+jarKQstMmpQi0
-            PubweWDL0o/Dfz2qT3DuL4xDecIvGE6kv3m41hHJYiK+2/azTSehyPFbsVbL7w0V
-            LgKN3usnZNcpTsBWxRGT7nMFSnX2FLDu7d9OfCuaXYxHVFLZaNrpccOq8NF/7Hbk
-            DDW81W7CvLyJDlp0WLnAawSOGTUTPoYv/2wAapJ89i8QGCueGvEc6o2EcnBVMFEW
-            ejWTQzyD816f4RsplnrRqLVlIMbr9Q/n5TvlgjjhX7IMEfMy4+7qLGRQkNbFzgwK
-            jxNG2fFSCjOEQitm0gAtx7QRIyvYr6c7/xiHz4AwxYzBmvQsL/OK57NO4+Krwgj5
-            Vk8TQ2jGO7J4bB38zaxK+Lrtfl8i1AK1171JqFMhOc34JSJ7T4LWDMECAwEAAQ==
-            -----END RSA PUBLIC KEY-----
-          '';
-        };
-      };
-      ssh.privkey.path = <secrets/ssh.id_ed25519>;
-      ssh.pubkey = "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIOd/HqZIO9Trn3eycl23GZAz21HQCISaVNfNyaLSQvJ6";
-    };
     ju = {
       external = true;
       nets = {
diff --git a/krebs/5pkgs/simple/git-preview/default.nix b/krebs/5pkgs/simple/git-preview/default.nix
new file mode 100644
index 000000000..f20f2a636
--- /dev/null
+++ b/krebs/5pkgs/simple/git-preview/default.nix
@@ -0,0 +1,15 @@
+{ coreutils, git, stdenv, writeDashBin }:
+
+writeDashBin "git-preview" ''
+  PATH=${stdenv.lib.makeBinPath [
+    coreutils
+    git
+  ]}''${PATH+:$PATH}
+  hashes=$(git log --format=%h "..$1")
+  end=$(echo "$hashes" | head -1)
+  start=$(echo "$hashes" | tail -1)
+  # exit if no diff was found
+  test -z "$start" && exit 0
+  shift
+