From c4699ed6826f5bf4472e08636008522eeec0cee8 Mon Sep 17 00:00:00 2001
From: Timothy DeHerrera <tim.deh@pm.me>
Date: Mon, 1 Feb 2021 23:16:26 -0700
Subject: [PATCH] shell: add editorconfig hook

---
 shell/default.nix | 26 +++++++++++++++++++-------
 1 file changed, 19 insertions(+), 7 deletions(-)

diff --git a/shell/default.nix b/shell/default.nix
index 909e35a2..95395399 100644
--- a/shell/default.nix
+++ b/shell/default.nix
@@ -59,6 +59,8 @@ pkgs.devshell.mkShell {
   git.hooks = with pkgs; {
     enable = true;
     pre-commit.text = ''
+      #!/usr/bin/env bash
+
       if ${git}/bin/git rev-parse --verify HEAD >/dev/null 2>&1
       then
         against=HEAD
@@ -66,15 +68,25 @@ pkgs.devshell.mkShell {
         # Initial commit: diff against an empty tree object
         against=$(${git}/bin/git hash-object -t tree /dev/null)
       fi
-      # Redirect output to stderr.
-      exec 1>&2
+
+      diff="${git}/bin/git diff-index --name-only --cached $against --diff-filter d"
+
+      nix_files=($($diff -- '*.nix'))
+
+      all_files=($($diff))
 
       # Format staged nix files.
-      exec ${nixpkgs-fmt}/bin/nixpkgs-fmt \
-        $(
-           ${git}/bin/git diff-index --name-only --cached $against --diff-filter d -- \
-           | ${ripgrep}/bin/rg '\.nix$'
-         )
+      ${nixpkgs-fmt}/bin/nixpkgs-fmt "${"\${nix_files[@]}"}"
+
+      # check editorconfig
+      ${editorconfig-checker}/bin/editorconfig-checker -- "${"\${all_files[@]}"}"
+      if [[ $? != '0' ]]; then
+        {
+          echo -e "\nCode is not aligned with .editorconfig"
+          echo "Review the output and commit your fixes"
+        } >&2
+        exit 1
+      fi
     '';
   };