Travis-CI: Use Nix

.gitignore

@@ -29,6 +29,7 @@
 translators.tex
 build-time.tex
 build-ver.tex
+result
 
 ## Generated if empty string is given at "Please type another file name for output:"
 .pdf

.travis.yml

@@ -1,10 +1,8 @@
-dist: bionic
-
-sudo: required
+language: nix
 
 before_install:
-  - sudo apt update
-  - sudo apt install texlive-full rubber pandoc
+  # Make sure that version is up-to-date
+  - sed -i "s/version = .*/version = \"$(git describe --abbrev=0 --tags | sed 's/v//')\";/" default.nix
 
 script:
-  - make
+  - nix-build

default.nix

@@ -0,0 +1,26 @@
+{ pkgs ? import <nixpkgs> {} }:
+
+pkgs.stdenv.mkDerivation {
+  pname = "free-as-in-freedom-v2-ru";
+
+  version = "0.99.5";
+
+  src = ./.;
+
+  FONTCONFIG_FILE = pkgs.makeFontsConf {
+    fontDirectories = [ pkgs.liberation_ttf ];
+  };
+
+  LANG = "C.UTF-8";
+
+  buildInputs = with pkgs; [
+    git utillinux gnumake
+    texlive.combined.scheme-full rubber
+    pandoc
+  ];
+
+  installPhase = ''
+    mkdir -p $out
+    cp faif-2.0.{fb2,pdf} $out/
+  '';
+}