s6: new package

s6 is skarnet.org's small & secure supervision software suite.

The s6-log program is modified to call execlineb directly rather than
searching PATH.

pkgs/servers/s6/default.nix

@@ -0,0 +1,57 @@
+{stdenv, fetchurl, skalibs, execline}:
+
+let
+
+  version = "1.1.3.2";
+
+in stdenv.mkDerivation rec {
+
+  name = "s6-${version}";
+
+  src = fetchurl {
+    url = "http://www.skarnet.org/software/s6/${name}.tar.gz";
+    sha256 = "0djxdd3d3mlp63sjqqs0ilf8p68m86c1s98d82fl0kgaaibpsikp";
+  };
+
+  buildInputs = [ skalibs execline ];
+
+  sourceRoot = "admin/${name}";
+
+  configurePhase = ''
+    pushd conf-compile
+
+    printf "$out/bin"           > conf-install-command
+    printf "$out/include"       > conf-install-include
+    printf "$out/lib"           > conf-install-library
+    printf "$out/lib"           > conf-install-library.so
+    printf "$out/sysdeps"       > conf-install-sysdeps
+
+    # let nix builder strip things, cross-platform
+    truncate --size 0 conf-stripbins
+    truncate --size 0 conf-striplibs
+
+    printf "${skalibs}/sysdeps" > import
+    printf "%s\n%s" "${skalibs}/include" "${execline}/include" > path-include
+    printf "%s\n%s" "${skalibs}/lib"     "${execline}/lib"     > path-library
+
+    rm -f flag-slashpackage
+    touch flag-allstatic
+
+    popd
+  '';
+
+  preBuild = ''
+    substituteInPlace "src/daemontools-extras/s6-log.c" \
+      --replace '"execlineb"' '"${execline}/bin/execlineb"'
+
+    patchShebangs src/sys
+  '';
+
+  meta = {
+    homepage = http://www.skarnet.org/software/s6/;
+    description = "skarnet.org's small & secure supervision software suite.";
+    platforms = stdenv.lib.platforms.all;
+    license = stdenv.lib.licenses.isc;
+  };
+
+}

pkgs/top-level/all-packages.nix

@@ -6982,6 +6982,8 @@ let
 
   rippled = callPackage ../servers/rippled { };
 
+  s6 = callPackage ../servers/s6 { };
+
   spamassassin = callPackage ../servers/mail/spamassassin {
     inherit (perlPackages) HTMLParser NetDNS NetAddrIP DBFile
       HTTPDate MailDKIM LWP IOSocketSSL;