From d9de00e6653288e72874c1d42064dc0d24ddaed1 Mon Sep 17 00:00:00 2001
From: Simon Bruder <simon@sbruder.de>
Date: Tue, 18 Aug 2020 16:38:34 +0200
Subject: [PATCH] zsh: Add (nix-)direnv

---
 .gitmodules       |  3 +++
 home/.gitignore   |  1 +
 home/.nix-direnv  |  1 +
 home/.zshrc.local | 21 +++++++++++++++++++++
 nix-direnv        |  1 +
 5 files changed, 27 insertions(+)
 create mode 120000 home/.nix-direnv
 create mode 160000 nix-direnv

diff --git a/.gitmodules b/.gitmodules
index 0a00328..2077c3d 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -22,3 +22,6 @@
 [submodule "zsh-nix-shell"]
 	path = zsh-nix-shell
 	url = https://github.com/chisui/zsh-nix-shell
+[submodule "nix-direnv"]
+	path = nix-direnv
+	url = https://github.com/nix-community/nix-direnv
diff --git a/home/.gitignore b/home/.gitignore
index caf7c60..3f55075 100644
--- a/home/.gitignore
+++ b/home/.gitignore
@@ -1,2 +1,3 @@
 *.swp
+.direnv
 Session.vim
diff --git a/home/.nix-direnv b/home/.nix-direnv
new file mode 120000
index 0000000..c4c72d5
--- /dev/null
+++ b/home/.nix-direnv
@@ -0,0 +1 @@
+../nix-direnv
\ No newline at end of file
diff --git a/home/.zshrc.local b/home/.zshrc.local
index 5385b53..cc8565e 100644
--- a/home/.zshrc.local
+++ b/home/.zshrc.local
@@ -52,6 +52,27 @@ alias dynamic-colors="~/.dynamic-colors/bin/dynamic-colors"
 ## Support for nix-shell
 source $HOME/.zsh/zsh-nix-shell/nix-shell.plugin.zsh
 
+# Per-directory environment
+command -v direnv >/dev/null && eval "$(direnv hook zsh)"
+
+nixify() {
+    if [ ! -e ./.envrc ]; then
+        echo "use nix" > .envrc
+        direnv allow
+    fi
+    if [[ ! -e shell.nix ]] && [[ ! -e default.nix ]]; then
+        cat > default.nix << EOF
+{ pkgs ? import <nixpkgs> {} }:
+
+pkgs.mkShell {
+  nativeBuildInputs = with pkgs; [
+  ];
+}
+EOF
+    ${EDITOR:-vim} default.nix
+    fi
+}
+
 ## Timer
 function timer() (
     if [ -z "$1" ] || [ -z "$2" ]; then
diff --git a/nix-direnv b/nix-direnv
new file mode 160000
index 0000000..300258e
--- /dev/null
+++ b/nix-direnv
@@ -0,0 +1 @@
+Subproject commit 300258e2bded28c284451f4fac8475b2240b46f6