From 36ad5c4a3962d54b00e9d6eddcfd7bdc59e8ed88 Mon Sep 17 00:00:00 2001
From: surtur <a_mirre@utb.cz>
Date: Sat, 12 Nov 2022 23:05:58 +0100
Subject: [PATCH] add nix flake and related files

---
 .envrc      |   7 ++++
 .gitignore  |   1 +
 README.md   |   4 ++
 default.nix |  16 ++++++++
 flake.lock  |  26 +++++++++++++
 flake.nix   | 105 ++++++++++++++++++++++++++++++++++++++++++++++++++++
 shell.nix   |  16 ++++++++
 7 files changed, 175 insertions(+)
 create mode 100644 .envrc
 create mode 100644 default.nix
 create mode 100644 flake.lock
 create mode 100644 flake.nix
 create mode 100644 shell.nix

diff --git a/.envrc b/.envrc
new file mode 100644
index 0000000..6125787
--- /dev/null
+++ b/.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
diff --git a/.gitignore b/.gitignore
index 6bca4ac..a7342e6 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,3 +1,4 @@
+.direnv
 # backup files
 *.tex\~
 # vim swap files
diff --git a/README.md b/README.md
index 10efed0..1056abb 100644
--- a/README.md
+++ b/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
diff --git a/default.nix b/default.nix
new file mode 100644
index 0000000..c580745
--- /dev/null
+++ b/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/${lock.nodes.flake-compat.locked.rev}.tar.gz";
+        sha256 = lock.nodes.flake-compat.locked.narHash;
+      }
+  )
+  {
+    src = ./.;
+  }
+)
+.defaultNix
diff --git a/flake.lock b/flake.lock
new file mode 100644
index 0000000..b7db1d4
--- /dev/null
+++ b/flake.lock
@@ -0,0 +1,26 @@
+{
+  "nodes": {
+    "nixpkgs": {
+      "locked": {
+        "lastModified": 1668288759,
+        "narHash": "sha256-olmFmG3er2sYTnwcZSjfxf/SiZo9mNgfGVA/O05DIIg=",
+        "owner": "nixos",
+        "repo": "nixpkgs",
+        "rev": "eda76eb80e5a98f1cfdfe925032aae251f812eef",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nixos",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
+    "root": {
+      "inputs": {
+        "nixpkgs": "nixpkgs"
+      }
+    }
+  },
+  "root": "root",
+  "version": 7
+}
diff --git a/flake.nix b/flake.nix
new file mode 100644
index 0000000..16a4bc0
--- /dev/null
+++ b/flake.nix
@@ -0,0 +1,105 @@
+{
+  # check out https://git.dotya.ml/mirre-mt/thesis-tmpl/
+  description = "Thesis tmpl";
+
+  inputs = {
+    nixpkgs.url = "github:nixos/nixpkgs";
+  };
+
+  outputs = {
+    self,
+    nixpkgs,
+    ...
+  }: let
+    # to work with older version of flakes
+    lastModifiedDate =
+      self.lastModifiedDate or self.lastModified or "19700101";
+    supportedSystems = ["aarch64-linux" "x86_64-linux" "x86_64-darwin"];
+    forAllSystems = nixpkgs.lib.genAttrs supportedSystems;
+
+    thesisType = ""; # ms, bc
+    throw "Set thesis type!"
+    documentName = "thesis";
+    pname = thesisType + "_" + documentName;
+    version = "0.0.1";
+
+    pkgs = forAllSystems (system: nixpkgs.legacyPackages.${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
+          ];
+        };
+      });
+  };
+}
diff --git a/shell.nix b/shell.nix
new file mode 100644
index 0000000..017cf3f
--- /dev/null
+++ b/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