Module for gitit

gitit/cabal.nix

@@ -0,0 +1,40 @@
+{ mkDerivation, aeson, base, base64-bytestring, blaze-html
+, bytestring, ConfigFile, containers, directory, doctemplates, feed
+, fetchgit, filepath, filestore, ghc, ghc-paths, happstack-server
+, hoauth2, hslogger, HStringTemplate, HTTP, http-client-tls
+, http-conduit, json, lib, mtl, network, network-bsd, network-uri
+, old-locale, old-time, pandoc, pandoc-types, parsec, pretty
+, process, random, recaptcha, safe, SHA, skylighting, split, syb
+, tagsoup, temporary, text, time, uri-bytestring, url, utf8-string
+, uuid, xhtml, xml, xml-conduit, xml-types, xss-sanitize, zlib
+}:
+mkDerivation {
+  pname = "gitit";
+  version = "0.15.1.0";
+  src = fetchgit {
+    url = "https://github.com/jgm/gitit";
+    sha256 = "0rzjgi6q338n6cv74438q81v322x2wjrpa7zdvp47z6hrilwpqaa";
+    rev = "11a18b034cc49ddaca652ac745fd308405a1fdad";
+    fetchSubmodules = true;
+  };
+  isLibrary = true;
+  isExecutable = true;
+  enableSeparateDataOutput = true;
+  libraryHaskellDepends = [
+    aeson base base64-bytestring blaze-html bytestring ConfigFile
+    containers directory doctemplates feed filepath filestore ghc
+    ghc-paths happstack-server hoauth2 hslogger HStringTemplate HTTP
+    http-client-tls http-conduit json mtl network network-bsd
+    network-uri old-locale old-time pandoc pandoc-types parsec pretty
+    process random recaptcha safe SHA skylighting split syb tagsoup
+    temporary text time uri-bytestring url utf8-string uuid xhtml xml
+    xml-conduit xml-types xss-sanitize zlib
+  ];
+  executableHaskellDepends = [
+    base bytestring directory filepath hslogger HTTP mtl network
+    network-uri syb text url utf8-string
+  ];
+  description = "Wiki using happstack, git or darcs, and pandoc";
+  license = "GPL";
+}
+

gitit/default.nix

@@ -0,0 +1,62 @@
+{ lib, haskellPackages, haskell, removeReferencesTo
+# “Plugins” are a fancy way of saying gitit will invoke
+# GHC at *runtime*, which in turn makes it pull GHC
+# into its runtime closure. Only enable if you really need
+# that feature. But if you do you’ll want to use gitit
+# as a library anyway.
+, pluginSupport ? false
+}:
+
+# this is similar to what we do with the pandoc executable
+
+let
+  plain = haskellPackages.callPackage ./cabal.nix {};
+  plugins =
+    if pluginSupport
+    then plain
+    else haskell.lib.compose.disableCabalFlag "plugins" plain;
+  static = haskell.lib.compose.justStaticExecutables plugins;
+
+in
+  (haskell.lib.compose.overrideCabal (drv: {
+    buildTools = (drv.buildTools or []) ++ [ removeReferencesTo ];
+  }) static).overrideAttrs (drv: {
+
+    # These libraries are still referenced, because they generate
+    # a `Paths_*` module for figuring out their version.
+    # The `Paths_*` module is generated by Cabal, and contains the
+    # version, but also paths to e.g. the data directories, which
+    # lead to a transitive runtime dependency on the whole GHC distribution.
+    # This should ideally be fixed in haskellPackages (or even Cabal),
+    # but a minimal gitit is important enough to patch it manually.
+    disallowedReferences = [
+      haskellPackages.pandoc-types
+      haskellPackages.HTTP
+      haskellPackages.pandoc
+      haskellPackages.happstack-server
+      haskellPackages.filestore
+    ];
+    postInstall = ''
+      remove-references-to \
+        -t ${haskellPackages.pandoc-types} \
+        $out/bin/gitit
+      remove-references-to \
+        -t ${haskellPackages.HTTP} \
+        $out/bin/gitit
+      remove-references-to \
+        -t ${haskellPackages.pandoc} \
+        $out/bin/gitit
+      remove-references-to \
+        -t ${haskellPackages.happstack-server} \
+        $out/bin/gitit
+      remove-references-to \
+        -t ${haskellPackages.filestore} \
+        $out/bin/gitit
+    '';
+
+    meta = drv.meta // {
+      maintainers = drv.meta.maintainers or []
+        ++ [ lib.maintainers.Profpatsch ];
+    };
+  })
+