improve upgrade

CHANGELOG.md

@@ -4,6 +4,11 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/) and this
 project adheres to [Semantic Versioning](https://semver.org/).
 
+## [0.2.7] - 2024-09-08
+### Fixed
+- Keep existing imports after upgrading Lume with an external import map file.
+- Don't override lume tasks after upgrading.
+
 ## [0.2.6] - 2024-08-30
 ### Changed
 - Upgrade Deno minimum version to `1.46`.
@@ -108,6 +113,7 @@ First version
 [#1]: https://github.com/lumeland/init/issues/1
 [#3]: https://github.com/lumeland/init/issues/3
 
+[0.2.7]: https://github.com/lumeland/init/compare/v0.2.6...v0.2.7
 [0.2.6]: https://github.com/lumeland/init/compare/v0.2.5...v0.2.6
 [0.2.5]: https://github.com/lumeland/init/compare/v0.2.4...v0.2.5
 [0.2.4]: https://github.com/lumeland/init/compare/v0.2.3...v0.2.4

steps/start.ts

@@ -87,9 +87,10 @@ function configureLume(deno: DenoConfig, version: string) {
 
   // Configure lume tasks
   deno.tasks ??= {};
-  deno.tasks.lume = `echo "import 'lume/cli.ts'" | deno run -A -`;
-  deno.tasks.build = "deno task lume";
-  deno.tasks.serve = "deno task lume -s";
+  deno.tasks.lume ??= `echo "import 'lume/cli.ts'" | deno run -A -`;
+  deno.tasks.lume.replace(" --unstable ", " "); // Remove --unstable flag
+  deno.tasks.build ??= "deno task lume";
+  deno.tasks.serve ??= "deno task lume -s";
 
   // Configure the compiler options
   deno.compilerOptions ??= {};

steps/update.ts

@@ -26,11 +26,15 @@ async function saveDenoConfig(
   let changed = false;
 
   if (deno.importMap) {
-    const importMap = { imports: deno.imports, scopes: deno.scopes };
-    const existingContent = await Deno.readTextFile(deno.importMap);
-    const newContent = JSON.stringify(importMap, null, 2) + "\n";
+    const mapText = await Deno.readTextFile(deno.importMap);
+    const map = JSON.parse(mapText);
+    Object.assign(map.imports, deno.imports);
+    if (deno.scopes) {
+      Object.assign(map.scopes, deno.scopes);
+    }
+    const newContent = JSON.stringify(map, null, 2) + "\n";
 
-    if (existingContent.trim() !== newContent.trim()) {
+    if (mapText.trim() !== newContent.trim()) {
       changed = true;
     }