fix: Edit wasn't updating Gradle build files correctly

It was using existing, stale, Project instance to update the build file
which resulted in the build file never actually being updated.

Fixes jbangdev#1693

src/main/java/dev/jbang/cli/Edit.java

@@ -1,6 +1,7 @@
 package dev.jbang.cli;
 
 import static dev.jbang.Settings.CP_SEPARATOR;
+import static dev.jbang.util.Util.freshly;
 import static dev.jbang.util.Util.pathToString;
 import static dev.jbang.util.Util.verboseMsg;
 import static java.lang.System.out;
@@ -179,11 +180,18 @@ public Integer doCall() throws IOException {
  if (!live) {
  out.println(projectPathString); // quit(project.getAbsolutePath());
  } else {
- watchForChanges(prj, () -> {
- // TODO only regenerate when dependencies changes.
+ Path orginalFile = prj.getResourceRef().getFile();
+ if (!Files.exists(orginalFile)) {
+ throw new ExitException(EXIT_UNEXPECTED_STATE,
+ "Cannot live edit " + prj.getResourceRef().getOriginalResource());
+ }
+ watchForChanges(orginalFile, () -> {
+ // TODO only regenerate when dependencies or file/resource refs changes.
  info("Regenerating project.");
  try {
- createProjectForLinkedEdit(prj, Collections.emptyList(), true);
+ ProjectBuilder pblive = createProjectBuilder();
+ Project prjlive = pblive.build(scriptMixin.scriptOrFile);
+ createProjectForLinkedEdit(prjlive, Collections.emptyList(), true);
  } catch (IOException e) {
  throw new RuntimeException(e);
  }
@@ -194,13 +202,8 @@ public Integer doCall() throws IOException {
  return EXIT_OK;
  }
 
- private void watchForChanges(Project prj, Callable<Object> action) throws IOException {
+ private void watchForChanges(Path orginalFile, Callable<Object> action) throws IOException {
  try (final WatchService watchService = FileSystems.getDefault().newWatchService()) {
- Path orginalFile = prj.getResourceRef().getFile();
- if (!Files.exists(orginalFile)) {
- throw new ExitException(EXIT_UNEXPECTED_STATE,
- "Cannot live edit " + prj.getResourceRef().getOriginalResource());
- }
  Path watched = orginalFile.toAbsolutePath().getParent();
  watched.register(watchService,
  StandardWatchEventKinds.ENTRY_MODIFY);
@@ -214,12 +217,10 @@ private void watchForChanges(Project prj, Callable<Object> action) throws IOExce
  verboseMsg("Changed file: " + changed.toString());
  if (Files.isSameFile(orginalFile, changed)) {
  try {
- action.call();
+ freshly(action);
  } catch (RuntimeException ee) {
  warn("Error when re-generating project. Ignoring it, but state might be undefined: "
  + ee.getMessage());
- } catch (IOException ioe) {
- throw ioe;
  } catch (Exception e) {
  throw new ExitException(EXIT_GENERIC_ERROR, "Exception when re-generating project. Exiting",
  e);
@@ -382,7 +383,7 @@ private static List<String> findEditorsOnPath() {
  private static void showStartingMsg(String ed, boolean showConfig) {
  String msg = "Starting '" + ed + "'.";
  if (showConfig) {
- msg += "If you want to make this the default, run 'jbang config set edit.open " + ed + "'";
+ msg += " If you want to make this the default, run 'jbang config set edit.open " + ed + "'";
  }
  Util.infoMsg(msg);
  }