initial commit

shell.nix

@@ -0,0 +1,39 @@
+{ pkgs ? import <nixpkgs> {} }:
+pkgs.mkShell {
+  buildInputs = with pkgs; [
+    python3
+    python3Packages.virtualenv
+    python3Packages.colour
+    python3Packages.openrazer
+    python3Packages.toml
+  ];
+  shellHook = ''
+    function log_header {
+      echo -ne "==> \e[32m\e[1m$1\e[0m\n"
+    }
+    function log_subheader {
+      echo -ne "--> \e[33m\e[1m$1\e[0m\n"
+    }
+    function log {
+      echo -ne "    $1\n"
+    }
+
+    echo ""
+    log_header "python_environment"
+    if [ ! -d .venv ]; then
+      python -m venv .venv
+    fi
+    source .venv/bin/activate
+    log_subheader "upgrading pip"
+    pip install --upgrade pip
+    echo ""
+    if [ -s requirements.txt ]; then
+      log_subheader "found requirements.txt, installing packages"
+      pip install -r requirements.txt
+      echo ""
+    fi
+    log_header "package versions"
+    log "$(python --version)"
+    log "$(pip --version)"
+  '';
+}