Fix output text (#548)

README.md

@@ -49,6 +49,13 @@ laconic-so version
 Version: 1.1.0-7a607c2-202304260513
 ```
 
+### Update
+If Stack Orchestrator was installed using the process described above, it is able to subsequently self-update to the current latest version by running:
+
+```bash
+laconic-so update
+```
+
 ## Usage
 
 The various [stacks](/app/data/stacks) each contain instructions for running different stacks based on your use case. For example:

app/update.py

@@ -72,8 +72,19 @@ def command(ctx, check_only):
     # Check if the downloaded file is identical to the existing one
     same = filecmp.cmp(temp_download_path, shiv_binary_path)
     if same:
+        if not ctx.obj.quiet or check_only:
+            print("No update available, latest version already installed")
+    else:
         if not ctx.obj.quiet:
-            print("Up update available, latest version already installed")
-    if ctx.obj.verbose:
-        print(f"Replacing: {shiv_binary_path} with {temp_download_path}")
-    os.replace(temp_download_path, shiv_binary_path)
+            print("Update available")
+        if check_only:
+            if not ctx.obj.quiet:
+                print("Check-only node, update not installed")
+        else:
+            if not ctx.obj.quiet:
+                print("Installing...")
+            if ctx.obj.verbose:
+                print(f"Replacing: {shiv_binary_path} with {temp_download_path}")
+            os.replace(temp_download_path, shiv_binary_path)
+            if not ctx.obj.quiet:
+                print("Run \"laconic-so version\" to see the newly installed version")