fixed regression about _preview not deleting published web site

main.go

@@ -168,6 +168,8 @@ func main() {
 	err = os.MkdirAll(filepath.Join(outDir, outSandpointsDir, "_preview"), 0755)
 	check(err)
 
+	published := isPublished(gitRepoPath, gitIndexPath, prevCommit, lastCommit)
+
 	defer func() {
 		lastPreviewCommitLog, err := os.Create(filepath.Join(outDir, outSandpointsDir, "_preview", "last-commit-log.txt"))
 		check(err)
@@ -175,8 +177,9 @@ func main() {
 		fmt.Fprintln(lastPreviewCommitLog, logLines)
 		log.Printf(logLines)
 	}()
+
 	defer func() {
-		if isPublished(gitRepoPath, gitIndexPath, prevCommit, lastCommit) {
+		if published {
 			lastGiteaCommitLog, err := os.Create(filepath.Join(outDir, outSandpointsDir, "last-commit-log.txt"))
 			check(err)
 			defer lastGiteaCommitLog.Close()
@@ -184,7 +187,7 @@ func main() {
 		}
 	}()
 
-	if isPublished(gitRepoPath, gitIndexPath, prevCommit, lastCommit) {
+	if published {
 		hugoGiteaLogs := cage.Start()
 		respGitea := commands.Execute([]string{"-s", tmpRepoPath, "-d", tmpHugoGiteaPath, "-e", "gitea"})
 		cage.Stop(hugoGiteaLogs)
@@ -209,23 +212,33 @@ func main() {
 
 	logLines = hugoLogs(logLines, hugoPreviewLogs.Data, "for _preview instance")
 
-	if _, err := os.Stat(filepath.Join(outDir, outSandpointsDir)); err == nil {
-		err := os.RemoveAll(filepath.Join(outDir, outSandpointsDir))
+	if published {
+		if _, err := os.Stat(filepath.Join(outDir, outSandpointsDir)); err == nil {
+			err := os.RemoveAll(filepath.Join(outDir, outSandpointsDir))
+			check(err)
+		}
+	} else if _, err := os.Stat(filepath.Join(outDir, outSandpointsDir, "_preview")); err == nil {
+		err := os.RemoveAll(filepath.Join(outDir, outSandpointsDir, "_preview"))
 		check(err)
 	}
 
 	err = os.MkdirAll(outDir, 0755)
 	check(err)
 
-	err = os.Rename(tmpHugoGiteaPath, filepath.Join(outDir, outSandpointsDir))
-	check(err)
+	if published {
+		err = os.Rename(tmpHugoGiteaPath, filepath.Join(outDir, outSandpointsDir))
+		check(err)
+	} else {
+		err = os.Rename(tmpHugoPreviewPath, filepath.Join(outDir, outSandpointsDir, "_preview"))
+		check(err)
+	}
 
-	published := ""
-	if isPublished(gitRepoPath, gitIndexPath, prevCommit, lastCommit) {
-		published = " + published instance"
+	publishedMessage := ""
+	if published {
+		publishedMessage = " + published instance"
 	}
 
 	durationMillseconds := int64(time.Since(startTime) / time.Millisecond)
-	logLines = logLines + fmt.Sprintf("Total processing time (_preview%s): %d ms", published, durationMillseconds)
+	logLines = logLines + fmt.Sprintf("Total processing time (_preview%s): %d ms", publishedMessage, durationMillseconds)
 	logGiteaLines = logGiteaLines + fmt.Sprintf("Total processing time (published + _preview instance): %d ms", durationMillseconds)
 }