package eplot

default.nix

@@ -18,6 +18,7 @@ in
   overlays = import ./overlays; # nixpkgs overlays
 
   colors = pkgs.callPackage ./pkgs/colors { };
+  eplot = pkgs.callPackage ./pkgs/eplot { };
 
   rank_photos = pkgs.callPackage ./pkgs/rank_photos { };
   JAVMovieScraper = pkgs.callPackage ./pkgs/JAVMovieScraper { };

pkgs/eplot/default.nix

@@ -0,0 +1,38 @@
+{ stdenv, fetchFromGitHub, gnuplot, ruby }:
+
+stdenv.mkDerivation {
+  name = "eplot-unstable-2018-09-03";
+
+  src = fetchFromGitHub {
+    owner = "chriswolfvision";
+    repo = "eplot";
+    rev = "77bbe535f08a4377a7d86f11a21a726b06470323";
+    sha256 = "0y81dbvzmybv9zgvcfw9kzbn0d5sqs6y2hqzq2klsqchcna4b1dn";
+  };
+
+  buildInputs = [ ruby ];
+
+  installPhase = ''
+    mkdir -p $out/bin
+    cp eplot ec $out/bin/
+    chmod +x $out/bin/*
+
+    sed -i -e "s|gnuplot -persist|${gnuplot}/bin/gnuplot -persist|" "$out/bin/eplot"
+  '';
+
+  meta = with stdenv.lib; {
+    description = "Create plots quickly with gnuplot";
+    longDescription = ''
+      eplot ("easy gnuplot") is a ruby script which allows to pipe data easily
+      through gnuplot and create plots quickly, which can be saved in
+      postscript, PDF, PNG or EMF files. Plotting of multiple files into a
+      single diagram is supported.
+
+      This package also includes the complementary 'ec' tool (say "extract
+      column").
+    '';
+    homepage = http://liris.cnrs.fr/christian.wolf/software/eplot/;
+    license = licenses.gpl2Plus;
+    platforms = platforms.all;
+  };
+}