From e20e9759ee7f390f09a246282e667386f510b067 Mon Sep 17 00:00:00 2001
From: Atsuto Yamashita <nyxht500@yahoo.co.jp>
Date: Mon, 1 Mar 2021 20:20:21 +0900
Subject: [PATCH] hide blurredPlaceholders warning (#1151)

---
 .../lib/transformers/AddBlurryImagePlaceholders.js     | 10 ++++++----
 1 file changed, 6 insertions(+), 4 deletions(-)

diff --git a/packages/optimizer/lib/transformers/AddBlurryImagePlaceholders.js b/packages/optimizer/lib/transformers/AddBlurryImagePlaceholders.js
index 08af364d7..55116bd0b 100644
--- a/packages/optimizer/lib/transformers/AddBlurryImagePlaceholders.js
+++ b/packages/optimizer/lib/transformers/AddBlurryImagePlaceholders.js
@@ -77,10 +77,12 @@ class AddBlurryImagePlaceholders {
     // generation at runtime
     this.missingDependencies_ = false;
     if (!isDependencyInstalled('jimp') || !isDependencyInstalled('lru-cache')) {
-      this.log_.warn(
-        'jimp and lru-cache need to be installed via `npm install jimp lru-cache` ' +
-          'for this transformer to work'
-      );
+      if (this.blurredPlaceholders_) {
+        this.log_.warn(
+          'jimp and lru-cache need to be installed via `npm install jimp lru-cache` ' +
+            'for this transformer to work'
+        );
+      }
       // we can't generate placeholders
       this.blurredPlaceholders_ = false;
       this.missingDependencies_ = true;