Display suppressed messages tip only when an error occurred.

src/nimble.nim

@@ -78,13 +78,13 @@ proc refresh(options: Options) =
         downloadFile(url, tempPath, proxy = getProxy(options))
       except:
         let message = "Could not download: " & getCurrentExceptionMsg()
-        display("Warning", message, Warning)
+        display("Warning:", message, Warning)
         lastError = message
         continue
 
       if not validatePackagesList(tempPath):
         lastError = "Downloaded packages.json file is invalid"
-        display("Warning", lastError & ", discarding.", Warning)
+        display("Warning:", lastError & ", discarding.", Warning)
         continue
 
       copyFile(tempPath,
@@ -1035,7 +1035,7 @@ when isMainModule:
   finally:
     removeDir(getNimbleTempDir())
 
-  displayTip()
   if error.len > 0:
+    displayTip()
     display("Error", error, Error, HighPriority)
     quit(1)

src/nimblepkg/packageinfo.nim

@@ -178,7 +178,7 @@ proc findNimbleFile*(dir: string; error: bool): string =
       raise newException(NimbleError,
           "Specified directory does not contain a .nimble file.")
     else:
-      display("Warning", "No .nimble file found for " & dir, Warning,
+      display("Warning:", "No .nimble file found for " & dir, Warning,
               HighPriority)
 
 proc getInstalledPkgsMin*(libsDir: string, options: Options):

src/nimblepkg/packageparser.nim

@@ -262,7 +262,7 @@ proc getInstalledPkgs*(libsDir: string, options: Options):
           let exc = (ref ValidationError)(getCurrentException())
           exc.msg = createErrorMsg(validationErrorMsg, path, exc.msg)
           if exc.warnInstalled:
-            display("Warning", exc.msg, Warning, HighPriority)
+            display("Warning:", exc.msg, Warning, HighPriority)
           else:
             raise exc
         except: