add nix flake and related files

.envrc

@@ -0,0 +1,7 @@
+use flake
+
+# ref: https://github.com/direnv/direnv/wiki/Vim
+# comment out if not planning to use this
+#add_extra_vimrc
+
+# vim: ff=unix ft=sh

.gitignore

@@ -1,3 +1,4 @@
+.direnv
 # backup files
 *.tex\~
 # vim swap files

README.md

@@ -11,6 +11,10 @@ prerequisities:
 * `make`
 * [`distrobox`](https://github.com/89luca89/distrobox)
 
+alternatively, when using [Nix](https://builtwithnix.org/), just run `direnv
+allow`, `nix develop` (with [flakes](https://nixos.wiki/wiki/Flakes) enabled)
+or `nix shell` (when using nix without flakes).
+
 ### instructions:
 * clone this repo and cd into it
 ```sh

default.nix

@@ -0,0 +1,16 @@
+(
+  import
+  (
+    let
+      lock = builtins.fromJSON (builtins.readFile ./flake.lock);
+    in
+      fetchTarball {
+        url = "https://github.com/edolstra/flake-compat/archive/${lock.nodes.flake-compat.locked.rev}.tar.gz";
+        sha256 = lock.nodes.flake-compat.locked.narHash;
+      }
+  )
+  {
+    src = ./.;
+  }
+)
+.defaultNix

flake.lock

@@ -0,0 +1,26 @@
+{
+  "nodes": {
+    "nixpkgs": {
+      "locked": {
+        "lastModified": 1668288759,
+        "narHash": "sha256-olmFmG3er2sYTnwcZSjfxf/SiZo9mNgfGVA/O05DIIg=",
+        "owner": "nixos",
+        "repo": "nixpkgs",
+        "rev": "eda76eb80e5a98f1cfdfe925032aae251f812eef",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nixos",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
+    "root": {
+      "inputs": {
+        "nixpkgs": "nixpkgs"
+      }
+    }
+  },
+  "root": "root",
+  "version": 7
+}

flake.nix

@@ -0,0 +1,105 @@
+{
+  # check out https://git.dotya.ml/mirre-mt/thesis-tmpl/
+  description = "Thesis tmpl";
+
+  inputs = {
+    nixpkgs.url = "github:nixos/nixpkgs";
+  };
+
+  outputs = {
+    self,
+    nixpkgs,
+    ...
+  }: let
+    # to work with older version of flakes
+    lastModifiedDate =
+      self.lastModifiedDate or self.lastModified or "19700101";
+    supportedSystems = ["aarch64-linux" "x86_64-linux" "x86_64-darwin"];
+    forAllSystems = nixpkgs.lib.genAttrs supportedSystems;
+
+    thesisType = ""; # ms, bc
+    throw "Set thesis type!"
+    documentName = "thesis";
+    pname = thesisType + "_" + documentName;
+    version = "0.0.1";
+
+    pkgs = forAllSystems (system: nixpkgs.legacyPackages.${system});
+    nixpkgsFor = forAllSystems (
+      system:
+        import nixpkgs {
+          inherit system;
+          overlays = [self.overlay];
+        }
+    );
+  in rec {
+    formatter = forAllSystems (
+      system:
+        nixpkgsFor.${system}.alejandra
+    );
+    overlay = with pkgs;
+      final: prev: {
+        watcher = with final;
+          writeScriptBin "watch" ''
+            out=".latexmkout"
+            mkdir "$out"
+            latexmk \
+              -pvc \
+              -outdir="$out" \
+              -pdf \
+              -pdflatex="pdflatex -synctex=1 -file-line-error -interaction=nonstopmode" \
+              -use-make ${documentName}.tex
+            rm -r "$out"
+          '';
+      };
+
+    packages = with pkgs;
+      forAllSystems (system: {
+        inherit (nixpkgsFor.${system}) watcher;
+      });
+
+    defaultPackage =
+      forAllSystems (system: self.packages."${system}".watcher);
+
+    apps = forAllSystems (system: rec {
+      watch = {
+        type = "app";
+        program = "${self.packages."${system}".watcher}/bin/watch";
+      };
+      default = watch;
+    });
+    devShells = with pkgs;
+      forAllSystems (system: let
+        pkgs = import nixpkgs {
+          inherit system;
+          overlays = [self.overlay];
+        };
+        watcher = pkgs.writeShellScriptBin "watcher" ''
+          out=".latexmkout"
+          mkdir "$out"
+          latexmk \
+            -pvc \
+            -outdir="$out" \
+            -pdf \
+            -pdflatex="pdflatex -synctex=1 -file-line-error -interaction=nonstopmode" \
+            -use-make ${documentName}.tex
+          rm -r "$out"
+        '';
+      in {
+        default = nixpkgsFor.${system}.mkShell {
+          name = "${pname}-" + version;
+          shellHook = ''
+            echo " -- in ${pname} dev shell..."
+          '';
+
+          packages = with nixpkgsFor.${system}; [
+            watcher
+
+            gnumake
+            alejandra
+            distrobox
+            podman
+          ];
+        };
+      });
+  };
+}

shell.nix

@@ -0,0 +1,16 @@
+(
+  import
+  (
+    let
+      lock = builtins.fromJSON (builtins.readFile ./flake.lock);
+    in
+      fetchTarball {
+        url = "https://github.com/edolstra/flake-compat/archive/${lock.nodes.flake-compat.locked.rev}.tar.gz";
+        sha256 = lock.nodes.flake-compat.locked.narHash;
+      }
+  )
+  {
+    src = ./.;
+  }
+)
+.shellNix