From f362ebcec24953aaa97793ba130dccdccf1b2c87 Mon Sep 17 00:00:00 2001
From: Uri Shaked <uri@urishaked.com>
Date: Sat, 11 Nov 2023 22:47:47 +0200
Subject: [PATCH] ci(precheck): speed up precheck tests

---
 .github/workflows/test-precheck.yaml | 15 +++++++++++----
 precheck/default.nix                 |  6 +-----
 2 files changed, 12 insertions(+), 9 deletions(-)

diff --git a/.github/workflows/test-precheck.yaml b/.github/workflows/test-precheck.yaml
index e7a2403..a89ba64 100644
--- a/.github/workflows/test-precheck.yaml
+++ b/.github/workflows/test-precheck.yaml
@@ -14,10 +14,10 @@ jobs:
 
     steps:
       - name: Check out code
-        uses: actions/checkout@v2
+        uses: actions/checkout@v4
 
       - name: Set up Python
-        uses: actions/setup-python@v2
+        uses: actions/setup-python@v4
         with:
           python-version: '3.11'
           cache: 'pip'
@@ -33,8 +33,15 @@ jobs:
           pdk_version: ${{ env.PDK_VERSION }}
           pdk_root: ${{ env.PDK_ROOT }}
 
-      - name: Install nix
-        uses: cachix/install-nix-action@v20
+      - name: Install Nix
+        uses: rikhuijzer/cache-install@v1.1.2
+        with:
+          key: nix-${{ hashFiles('precheck/default.nix') }}
+          nix_file: 'precheck/default.nix'
+
+      - name: Build Nix packages
+        working-directory: precheck
+        run: nix-build
 
       - name: Run tests
         working-directory: precheck
diff --git a/precheck/default.nix b/precheck/default.nix
index 3695374..b4358ba 100644
--- a/precheck/default.nix
+++ b/precheck/default.nix
@@ -1,8 +1,4 @@
-{ pkgs ? import
-    (builtins.fetchGit {
-      url = "https://github.com/NixOS/nixpkgs.git";
-      rev = "f2bd8adf7b78d7616b52d0ef08865c7c2fcf189d";
-    })
+{ pkgs ? import (fetchTarball "https://github.com/NixOS/nixpkgs/archive/f2bd8adf7b78d7616b52d0ef08865c7c2fcf189d.tar.gz")
     { }
 , magic ? import ./nix/magic.nix { inherit pkgs; }
 ,