chore: replace alias for updating packages with script

conf.sh

@@ -0,0 +1,48 @@
+#! /bin/sh
+# basic scripts in for managing dotfiles and minor system tasks
+
+update_packages() {
+  echo "updating packages"
+
+  # brew
+  if [ -f /opt/homebrew/bin/brew ]; then
+    echo "homebrew detected, updating..."
+    /opt/homebrew/bin/brew update
+  fi
+
+  # pkg (termux)
+  if which pkg > /dev/null; then
+    echo "pkg detected, updating..."
+    pkg update
+    pkg upgrade
+  fi
+
+  # nix flake
+  if which nix > /dev/null; then
+    echo "nix detected, updating..."
+    nix flake update
+    git commit flake.lock -m "nix: update flake sources to $(nix flake metadata --json | jq '.locks.nodes.nixpkgs.locked.rev' --raw-output | cut -c1-7)"
+
+    # rebuild and switch for nix and darwin systems
+    if which nixos-rebuild > /dev/null; then
+      echo "detected nixos system, rebuilding..."
+      sudo nixos-rebuild switch --flake .
+    elif which darwin-rebuild > /dev/null; then
+      echo "detected darwin system, rebuilding..."
+      darwin-rebuild switch --flake .
+    else
+      echo "didn't detect a nixos or darwin system, continuing..."
+    fi
+  fi
+}
+
+HELPTEXT="$0
+
+usage:
+update      update packages on your system"
+
+if [ "$1" = "update" ]; then
+  update_packages
+else
+  echo "$HELPTEXT"
+fi