From 6433e8d541123abf89e88b5c05fef535a28d76e8 Mon Sep 17 00:00:00 2001
From: Akshay <nerdy@peppe.rs>
Date: Sat, 17 Apr 2021 14:00:55 +0530
Subject: add watcher alias

---
 flake.nix | 32 ++++++++++++++++++++++----------
 1 file changed, 22 insertions(+), 10 deletions(-)

(limited to 'flake.nix')

diff --git a/flake.nix b/flake.nix
index 525ebc6..3179176 100644
--- a/flake.nix
+++ b/flake.nix
@@ -8,15 +8,13 @@
       url = "github:hercules-ci/gitignore";
       flake = false;
     };
-    flake-compat = {
-      url = "github:edolstra/flake-compat";
-      flake = false;
-    };
   };
 
   outputs = { self, nixpkgs, utils, gitignore, ... }:
     utils.lib.eachDefaultSystem (system:
       let
+        pname = "report";
+        version = "0.1.0";
         pkgs = nixpkgs.legacyPackages."${system}";
         inherit (import gitignore { inherit (pkgs) lib; }) gitignoreSource;
         nativeBuildInputs = with pkgs; [
@@ -32,24 +30,38 @@
           })
           gnumake
         ];
+        watcher = pkgs.writeScriptBin "watch" ''
+          out=".latexmkout"
+          mkdir "$out"
+          latexmk \
+            -pvc \
+            -outdir="$out" \
+            -pdf \
+            -pdflatex="pdflatex -interaction=nonstopmode" \
+            -use-make ${pname}.tex
+          rm -r "$out"
+        '';
       in
       rec {
-        defaultPackage = stdenv.mkDerivation {
-          pname = "report";
-          version = "0.1.0";
+        defaultPackage = pkgs.stdenv.mkDerivation {
+          inherit pname version;
           src = gitignoreSource ./.;
           buildInputs = nativeBuildInputs;
           buildPhase = ''
-            latexmk -pdf \
+            latexmk \
+              -pdf \
               -pdflatex="pdflatex -interaction=nonstopmode" \
-              -use-make 
-              ${pname}.tex
+              -use-make ${pname}.tex
           '';
           installPhase = ''
             mkdir -p $out
             cp ${pname}.pdf $out/
           '';
         };
+        apps.watch = {
+          type = "app";
+          program = "${watcher}/bin/watch";
+        };
         devShell = pkgs.mkShell {
           nativeBuildInputs = nativeBuildInputs;
         };
-- 
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