From a0b9f9ffe688c86bfc04c35655d783289e3484ba Mon Sep 17 00:00:00 2001
From: Timothy DeHerrera <tim.deh@pm.me>
Date: Wed, 30 Dec 2020 01:47:42 -0700
Subject: [PATCH] hooks: declare nixpkgs-fmt pre-commit hook

---
 .pre-commit-config.yaml                           | 5 +++++
 CONTRIBUTING.md                                   | 4 +++-
 pkgs/applications/blockchains/miningcore/deps.nix | 3 ++-
 shell.nix                                         | 6 ++++++
 4 files changed, 16 insertions(+), 2 deletions(-)
 create mode 100644 .pre-commit-config.yaml

diff --git a/.pre-commit-config.yaml b/.pre-commit-config.yaml
new file mode 100644
index 0000000..f1ed697
--- /dev/null
+++ b/.pre-commit-config.yaml
@@ -0,0 +1,5 @@
+repos:
+-   repo: https://github.com/nix-community/nixpkgs-fmt
+    rev: master
+    hooks:
+    -   id: nixpkgs-fmt
diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
index 708b368..a0ed5fc 100644
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@@ -6,7 +6,9 @@ the `template` branch to provide a host of useful NixOS configurations available
 "out of the box". If you wish to contribute such an expression please follow
 these guidelines:
 
-* format your code with [`nixpkgs-fmt`][nixpkgs-fmt]
+* format your code with [`nixpkgs-fmt`][nixpkgs-fmt]. You can run the `hooks`
+  command inside the nix shell to install a pre-commit hook that does this
+  for you.
 * The commit message follows the same semantics as [nixpkgs][nixpkgs].
   * You can use a `#` symbol to specify ambiguities. For example,
   `develop#zsh: <rest of commit message>` would tell me that your updating the
diff --git a/pkgs/applications/blockchains/miningcore/deps.nix b/pkgs/applications/blockchains/miningcore/deps.nix
index 315b34a..aaba0d7 100644
--- a/pkgs/applications/blockchains/miningcore/deps.nix
+++ b/pkgs/applications/blockchains/miningcore/deps.nix
@@ -6,7 +6,8 @@ let
       inherit sha256;
       url = "${nugetUrlBase}/${name}/${version}";
     };
-in [
+in
+[
 
   (fetchNuGet {
     name = "Microsoft.AspNetCore.App.Runtime.linux-x64";
diff --git a/shell.nix b/shell.nix
index d55dd5f..e197743 100644
--- a/shell.nix
+++ b/shell.nix
@@ -37,6 +37,7 @@ pkgs.mkDevShell {
     nixos-install
     nixos-generate-config
     nixos-enter
+    pre-commit
   ];
 
   env = { inherit name; };
@@ -54,6 +55,11 @@ pkgs.mkDevShell {
       category = "main";
       package = flk;
     }
+    {
+      name = "hooks";
+      help = "install git hooks";
+      command = "pre-commit install";
+    }
     {
       name = "grip";
       help = python38Packages.grip.meta.description;