From fe471463ed22f76d9ecedeed7cb3619dc1af2bc4 Mon Sep 17 00:00:00 2001
From: hissssst <csqcsqcsq@yandex.ru>
Date: Sat, 30 Mar 2024 18:01:41 +0400
Subject: [PATCH] Nix flake support

---
 .gitignore |  4 ++++
 flake.lock | 27 +++++++++++++++++++++++++++
 flake.nix  |  9 +++++++++
 shell.nix  | 30 ++++++++++++++++++++++++++++++
 4 files changed, 70 insertions(+)
 create mode 100644 flake.lock
 create mode 100644 flake.nix
 create mode 100644 shell.nix

diff --git a/.gitignore b/.gitignore
index 68d8f8d..f388d4b 100644
--- a/.gitignore
+++ b/.gitignore
@@ -23,3 +23,7 @@ erl_crash.dump
 pathex-*.tar
 
 /.elixir_ls/
+
+# Nix auto shell
+.direnv
+.envrc
diff --git a/flake.lock b/flake.lock
new file mode 100644
index 0000000..93b865c
--- /dev/null
+++ b/flake.lock
@@ -0,0 +1,27 @@
+{
+  "nodes": {
+    "nixpkgs": {
+      "locked": {
+        "lastModified": 1711715736,
+        "narHash": "sha256-9slQ609YqT9bT/MNX9+5k5jltL9zgpn36DpFB7TkttM=",
+        "owner": "nixos",
+        "repo": "nixpkgs",
+        "rev": "807c549feabce7eddbf259dbdcec9e0600a0660d",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nixos",
+        "ref": "nixpkgs-unstable",
+        "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..92bb747
--- /dev/null
+++ b/flake.nix
@@ -0,0 +1,9 @@
+{
+  description = "Pathex: Elixir language lenses and Access replacement";
+  inputs.nixpkgs.url = "github:nixos/nixpkgs/nixpkgs-unstable";
+  outputs = { nixpkgs, ... }:
+    let pkgs = nixpkgs.legacyPackages.x86_64-linux;
+    in {
+      devShells.x86_64-linux.default = import ./shell.nix { inherit pkgs; };
+    };
+}
diff --git a/shell.nix b/shell.nix
new file mode 100644
index 0000000..1b958fb
--- /dev/null
+++ b/shell.nix
@@ -0,0 +1,30 @@
+{ pkgs ? (import <nixpkgs> { }), ... }:
+with pkgs;
+let otp = beam.packages.erlangR26;
+in pkgs.mkShell {
+  buildInputs = [
+    otp.elixir_1_16
+    otp.erlang
+    ((if otp ? elixir-ls then otp.elixir-ls else otp.elixir_ls).override {
+      elixir = otp.elixir_1_16;
+    })
+  ];
+
+  shellHook = ''
+    # keep your shell history in iex
+    export ERL_AFLAGS="-kernel shell_history enabled"
+
+    # Force UTF8 in CLI
+    export LANG="C.UTF-8"
+
+    # this isolates mix to work only in local directory
+    mkdir -p .nix-mix .nix-hex
+    export MIX_HOME=$PWD/.nix-mix
+    export HEX_HOME=$PWD/.nix-hex
+
+    # make hex from Nixpkgs available
+    # `mix local.hex` will install hex into MIX_HOME and should take precedence
+    export MIX_PATH="${otp.hex}/lib/erlang/lib/hex/ebin"
+    export PATH=$MIX_HOME/bin:$HEX_HOME/bin:$PATH
+  '';
+}