feat: refactor packages and add update scripts

packages/todo-mcp/update.sh

@@ -0,0 +1,62 @@
+#!/usr/bin/env nix-shell
+#!nix-shell -i bash -p curl jq nix-prefetch
+set -euo pipefail
+
+SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
+ROOT_DIR="$(cd "$SCRIPT_DIR/../.." && pwd)"
+PKG_FILE="$SCRIPT_DIR/package.nix"
+
+cd "$ROOT_DIR"
+
+extract_hash() {
+  sed 's/\x1b\[[0-9;]*m//g' | grep 'got:' | tail -1 | grep -oP 'sha256-[A-Za-z0-9+/]+='
+}
+
+echo "fetching latest version..."
+LATEST=$(curl -sf "https://git.janezic.dev/api/v1/repos/janezicmatej/todo-mcp/tags?limit=1" | jq -r '.[0].name')
+CURRENT=$(grep 'version = ' "$PKG_FILE" | head -1 | sed 's/.*"\(.*\)".*/\1/')
+
+if [[ "$CURRENT" == "$LATEST" ]]; then
+  echo "todo-mcp already at $LATEST"
+  exit 0
+fi
+
+echo "updating todo-mcp: $CURRENT -> $LATEST"
+
+echo "  prefetching source..."
+BASE32=$(nix-prefetch-url --unpack "https://git.janezic.dev/janezicmatej/todo-mcp/archive/${LATEST}.tar.gz" 2>/dev/null)
+SRC_HASH=$(nix hash convert --to sri "sha256:$BASE32")
+echo "  source: $SRC_HASH"
+
+echo "  computing cargo hash..."
+BUILD_OUTPUT=$(nix build --no-link --impure --expr "
+  let
+    pkgs = (builtins.getFlake \"path:$ROOT_DIR\").inputs.nixpkgs.legacyPackages.\${builtins.currentSystem};
+  in pkgs.rustPlatform.fetchCargoVendor {
+    src = pkgs.fetchFromGitea {
+      domain = \"git.janezic.dev\";
+      owner = \"janezicmatej\";
+      repo = \"todo-mcp\";
+      rev = \"$LATEST\";
+      hash = \"$SRC_HASH\";
+    };
+    hash = \"\";
+  }
+" 2>&1) || true
+CARGO_HASH=$(echo "$BUILD_OUTPUT" | extract_hash) || true
+
+if [[ -z "$CARGO_HASH" ]]; then
+  echo "  error: failed to compute cargo hash"
+  echo "$BUILD_OUTPUT"
+  exit 1
+fi
+echo "  cargo: $CARGO_HASH"
+
+OLD_SRC=$(grep 'sha256 = ' "$PKG_FILE" | grep -oP 'sha256-[A-Za-z0-9+/]+=')
+OLD_CARGO=$(grep 'cargoHash = ' "$PKG_FILE" | grep -oP 'sha256-[A-Za-z0-9+/]+=')
+
+sed -i "s|version = \"$CURRENT\"|version = \"$LATEST\"|" "$PKG_FILE"
+sed -i "s|$OLD_SRC|$SRC_HASH|" "$PKG_FILE"
+sed -i "s|$OLD_CARGO|$CARGO_HASH|" "$PKG_FILE"
+
+echo "todo-mcp updated to $LATEST"