tv diff-so-fancy: init at ed8cf17

Based on nixpkgs 28dd1158ff18def37892677a9eef109ce5147b81

tv/5pkgs/default.nix

@@ -24,6 +24,10 @@ foldl' mergeAttrs {}
         "$@"
   '';
 
+  gitAndTools = super.gitAndTools // {
+    inherit (self) diff-so-fancy;
+  };
+
   ff = self.writeDashBin "ff" ''
     exec ${self.firefoxWrapper}/bin/firefox "$@"
   '';

tv/5pkgs/simple/diff-so-fancy.nix

@@ -0,0 +1,48 @@
+{stdenv, git, perl, ncurses, coreutils, fetchFromGitHub, makeWrapper, ...}:
+
+stdenv.mkDerivation rec {
+  name = "diff-so-fancy-${version}";
+  version = "ed8cf17";
+
+  src = fetchFromGitHub {
+    owner = "so-fancy";
+    repo = "diff-so-fancy";
+    rev = "ed8cf1763d38bdd79ceb55a73b9ce7e30f1e184d";
+    sha256 = "176qn0w2rn6mr5ymvkblyiznqq7yyibfsnnjfivcyhz69w6yr9r9";
+  };
+
+  # Perl is needed here for patchShebangs
+  nativeBuildInputs = [ perl makeWrapper ];
+
+  buildPhase = null;
+
+  installPhase = ''
+    mkdir -p $out/bin $out/lib/diff-so-fancy
+
+    # diff-so-fancy executable searches for it's library relative to
+    # itself, so we are copying executable to lib, and only symlink it
+    # from bin/
+    cp diff-so-fancy $out/lib/diff-so-fancy
+    cp -r lib $out/lib/diff-so-fancy
+    ln -s $out/lib/diff-so-fancy/diff-so-fancy $out/bin
+
+    # ncurses is needed for `tput`
+    wrapProgram $out/lib/diff-so-fancy/diff-so-fancy \
+      --prefix PATH : "${git}/share/git/contrib/diff-highlight" \
+      --prefix PATH : "${git}/bin" \
+      --prefix PATH : "${coreutils}/bin" \
+      --prefix PATH : "${ncurses.out}/bin"
+  '';
+
+  meta = with stdenv.lib; {
+    homepage = https://github.com/so-fancy/diff-so-fancy;
+    description = "Good-looking diffs filter for git";
+    license = licenses.mit;
+    platforms = platforms.all;
+    longDescription = ''
+      diff-so-fancy builds on the good-lookin' output of git contrib's
+      diff-highlight to upgrade your diffs' appearances.
+    '';
+    maintainers = with maintainers; [ fpletz ];
+  };
+}