From 8f9de177e3cfed26cf9d67fd263d26ba85640eb2 Mon Sep 17 00:00:00 2001
From: Ben Sima <ben@bsima.me>
Date: Sat, 30 Jul 2022 14:55:41 -0400
Subject: Initialize dev shell

---
 .envrc        |  9 +++++++++
 .gitignore    |  1 +
 README        | 13 +++++++++++++
 shell.nix     | 19 +++++++++++++++++++
 start-repl.sh |  5 +++++
 5 files changed, 47 insertions(+)
 create mode 100644 .envrc
 create mode 100644 .gitignore
 create mode 100644 README
 create mode 100644 shell.nix
 create mode 100755 start-repl.sh

diff --git a/.envrc b/.envrc
new file mode 100644
index 0000000..8cce2ff
--- /dev/null
+++ b/.envrc
@@ -0,0 +1,9 @@
+# setup dev environment using direnv
+#
+  if ! has nix_direnv_version || ! nix_direnv_version 1.5.1; then
+    source_url "https://raw.githubusercontent.com/nix-community/nix-direnv/1.5.1/direnvrc" "sha256-p4CDMJjuBmEh9pkn2aoJrZqr0DlPZHPU7eXOSDzzcuo="
+  fi
+#
+# if direnv doesn't detect changes to the nix environment, just touch .envrc and
+# it will refresh
+  use nix
diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..29963da
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1 @@
+/.direnv/
diff --git a/README b/README
new file mode 100644
index 0000000..0cf40c1
--- /dev/null
+++ b/README
@@ -0,0 +1,13 @@
+Development
+===========
+
+You can start a dev shell with Nix. First run:
+
+    direnv allow
+
+Assuming you have nix installed, this will tell direnv to load the nix-shell
+environment by default. Or just run `nix-shell`.
+
+Now, to start a repl, just do `sbcl`, or run `start-repl.sh`.
+
+Then in emacs, `M-x slime-connect`.
diff --git a/shell.nix b/shell.nix
new file mode 100644
index 0000000..b5c4f45
--- /dev/null
+++ b/shell.nix
@@ -0,0 +1,19 @@
+{ pkgs ? import <nixpkgs> {} }:
+
+pkgs.mkShell {
+
+  packages = with pkgs; [
+    lolcat
+    (lispPackages_new.sbclWithPackages (p: with p; [
+      asdf
+      swank
+      quickproject
+      alexandria
+    ]))
+  ];
+
+  shellHook = ''
+    echo cl-gemini | figlet | lolcat
+  '';
+
+}
diff --git a/start-repl.sh b/start-repl.sh
new file mode 100755
index 0000000..5cc17bb
--- /dev/null
+++ b/start-repl.sh
@@ -0,0 +1,5 @@
+#!/usr/bin/env bash
+sbcl \
+  --eval '(require :asdf)' \
+  --eval '(require :swank)' \
+  --eval '(swank:create-server)'
-- 
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