(* HUGE *) Use nixpkgs overlays

2 files changed, 202 insertions, 0 deletions

diff --git a/pkgs/jenkinsWithPlugins/default.nix b/pkgs/jenkinsWithPlugins/default.nix
new file mode 100644
index 0000000..ebc12db
--- /dev/null
+++ b/pkgs/jenkinsWithPlugins/default.nix
@@ -0,0 +1,128 @@
+{ pkgs, lib, stdenv, fetchurl }:
+
+/*
+
+  `pluginsFunc` is a function that should return an attribute set of plugins
+  to be included in the WAR.
+
+  The plugins are provided by `pkgs.jenkinsUpdateCenter.plugins`.
+  Dependencies between those plugins are automatically resolved within the
+  same jenkinsUpdateCenter.
+
+  Example:
+
+    pkgs.jenkinsWithPlugins
+      (plugins: {
+        inherit (plugins) BlameSubversion ... ;
+        inherit (pkgs) my-plugin;
+      })
+
+  Each attribute of `plugins` is a derivation and you can return in
+  the set any other plugins that are not available in Jenkins registry
+  (https://updates.jenkins-ci.org/) or replacing plugins in the registry.
+
+  Non-optional dependencies, if any, are automatically added. Optional
+  dependencies are ignored, you have to add them explicitly.
+
+*/
+
+pluginsFunc:
+
+let
+
+  inherit (builtins)
+    attrNames fromJSON readFile ;
+
+  inherit (lib)
+    concatStrings filter filterAttrs flatten genAttrs mapAttrs
+    mapAttrsToList unique ;
+
+  fromBase64 = import ./fromBase64.nix;
+
+  updateCenter =
+    let
+      registry = fromJSON (readFile pkgs.jenkinsUpdateCenter);
+    in
+      registry // {
+        core = with registry.core; fetchurl {
+          inherit url;
+          name = "jenkins-core-${version}.war";
+          sha1 = fromBase64 sha1;
+          meta = registry.core;
+        };
+
+        plugins = mapAttrs (
+          _: plugin: fetchurl {
+            inherit (plugin) url;
+            sha1 = fromBase64 plugin.sha1;
+            name = "jenkins-plugin-${plugin.name}-${plugin.version}.hpi";
+            meta = plugin;
+          }
+        ) registry.plugins;
+      };
+
+  inherit (updateCenter) core;
+
+  neededPlugins =
+    let
+      rootPlugins = pluginsFunc updateCenter.plugins;
+      hasDeps = _: p: (p ? meta) && (p.meta ? dependencies);
+      directDeps = nn:
+        let
+          isRequired = d: ! (d ? optional && d.optional);
+          deps = p: map (d: d.name) (filter isRequired p.meta.dependencies);
+        in flatten (map (n: deps updateCenter.plugins.${n}) nn);
+
+      getDepsRecursive = nn: if nn == [] then [] else nn ++ getDepsRecursive (directDeps nn);
+      depNames = unique (getDepsRecursive (attrNames (filterAttrs hasDeps rootPlugins)));
+      deps = genAttrs depNames (n: updateCenter.plugins.${n});
+    in deps // rootPlugins;
+
+  pluginsPack = stdenv.mkDerivation {
+    name = "jenkins-plugins-pack";
+    phases = [ "installPhase" ];
+    installPhase = ''
+      mkdir -p $out
+      ${concatStrings (
+        mapAttrsToList (n: p: ''
+          ln -svf '${p}' "$out/${n}.hpi"
+        '') neededPlugins)}
+    '';
+  };
+
+  pack =  stdenv.mkDerivation rec {
+    name = "jenkins-${core.meta.version}+plugins.war";
+
+    # https://wiki.jenkins-ci.org/display/JENKINS/Bundling+plugins+with+Jenkins
+    build-xml = pkgs.writeXML "jenkins.build.xml"
+      ''
+      <?xml version="1.0" encoding="UTF-8"?>
+      <project basedir="." name="Jenkins-Bundle">
+        <target name="bundle" description="Merge plugins into jenkins.war">
+          <zip destfile="jenkins.war" level="9">
+            <zipfileset src="${core}" />
+            <zipfileset dir="${pluginsPack}" prefix="WEB-INF/plugins" />
+          </zip>
+        </target>
+      </project>
+      '';
+
+    meta = with stdenv.lib; {
+      description = "An extendable open source continuous integration server";
+      homepage = http://jenkins-ci.org;
+      license = licenses.mit;
+      platforms = platforms.all;
+    };
+
+    buildInputs = with pkgs; [ ant jdk ];
+
+    phases = [ "buildPhase" "installPhase" ];
+    buildPhase = ''
+      ln -sf ${build-xml} build.xml
+      ant bundle
+    '';
+    installPhase = "cp jenkins.war $out";
+  };
+
+in if neededPlugins == [] then core else pack
+
diff --git a/pkgs/jenkinsWithPlugins/fromBase64.nix b/pkgs/jenkinsWithPlugins/fromBase64.nix
new file mode 100644
index 0000000..3130f9c
--- /dev/null
+++ b/pkgs/jenkinsWithPlugins/fromBase64.nix
@@ -0,0 +1,74 @@
+strBase64:
+
+let
+
+  inherit (builtins)
+    concatStringsSep genList stringLength substring trace ;
+
+  base64 = {
+    # n=0; for l in {A..Z} {a..z} {0..9} + /; do printf '"%s" = %2s; ' $l $n; (( n++ )); (( n % 8 )) || echo; done
+    "A" =  0; "B" =  1; "C" =  2; "D" =  3; "E" =  4; "F" =  5; "G" =  6; "H" =  7;
+    "I" =  8; "J" =  9; "K" = 10; "L" = 11; "M" = 12; "N" = 13; "O" = 14; "P" = 15;
+    "Q" = 16; "R" = 17; "S" = 18; "T" = 19; "U" = 20; "V" = 21; "W" = 22; "X" = 23;
+    "Y" = 24; "Z" = 25; "a" = 26; "b" = 27; "c" = 28; "d" = 29; "e" = 30; "f" = 31;
+    "g" = 32; "h" = 33; "i" = 34; "j" = 35; "k" = 36; "l" = 37; "m" = 38; "n" = 39;
+    "o" = 40; "p" = 41; "q" = 42; "r" = 43; "s" = 44; "t" = 45; "u" = 46; "v" = 47;
+    "w" = 48; "x" = 49; "y" = 50; "z" = 51; "0" = 52; "1" = 53; "2" = 54; "3" = 55;
+    "4" = 56; "5" = 57; "6" = 58; "7" = 59; "8" = 60; "9" = 61; "+" = 62; "/" = 63;
+  };
+
+  quartet_to_int24 = q:
+    # https://en.wikipedia.org/wiki/Base64
+    let
+      s = n: assert (stringLength q == 4); substring (3 - n) 1 q;
+      d = n: base64.${s n};
+    in if s 0 != "=" then
+        64 * (64 * (64 * (d 3) + (d 2)) + (d 1)) + (d 0)
+      else if s 1 != "=" then
+        64 * (64 * (64 * (d 3) + (d 2)) + (d 1)) / 256 # right shift by 8 bits
+      else
+        64 * (64 * (64 * (d 3) + (d 2))) / 65536 # right shift by 16 bits
+      ;
+
+  int24_to_hex = i: # 16777215 (0xFFFFFF, 2^24-1) max
+    let
+      hex = "0123456789abcdef";
+      toHex = n:
+        let
+          d = n / 16;
+          r = n - 16 * d;
+        in "${if d != 0 then toHex d else ""}${substring r 1 hex}";
+    in assert (0 <= i && i <= 16777215); toHex i;
+
+  quartets = s:
+    let
+      l = stringLength s;
+      h = substring 0 4 s;
+      t = substring 4 (l - 4) s;
+    in [h] ++ (if t != "" then quartets t else []);
+
+
+  quartet_to_hex = q: # base64 quartet into hex with padding
+    let
+      i = quartet_to_int24 q;
+      h = int24_to_hex i;
+      s = if substring 2 1 q == "=" then 1
+          else if substring 3 1 q == "=" then 2
+          else 3; # number of bytes
+      w = s * 2; # number of hexadecimal digits
+      filler = concatStringsSep "" (genList (_: "0") (w - stringLength h));
+    in "${filler}${h}";
+
+/*
+
+  FIXME: usage of library functions like concatMapString
+  causes very cryptic errors:
+
+  # nix-instantiate --eval --expr 'import ./fromBase64.nix "kjOzmCPxyw0bPciMsGSh5q+bT9g="' --show-trace
+  error: while evaluating anonymous function at .../fromBase64.nix:1:1, called from (string):1:18:
+  value is a function while a set was expected, at .../fromBase64.nix:3:4
+
+*/
+
+in concatStringsSep "" (map quartet_to_hex (quartets strBase64))
+