fix: utilize hexo.log to display error message

lib/filter.js

@@ -24,6 +24,11 @@ function verbose (original, minified, path, ext) {
   log.log(`${ext}: ${path} [${saved}% saved]`)
 }
 
+function error (msg) {
+  const log = this.log || console
+  log.error(msg)
+}
+
 function minifyHtml (str, data) {
   const hexo = this
   const options = hexo.config.minify.html
@@ -64,7 +69,7 @@ async function minifyCss (str, data) {
     if (options.logger) verbose.call(this, str, result.styles, path, 'css')
     return result.styles
   } catch (err) {
-    throw new Error(err)
+    error(err)
   }
 }
 
@@ -122,8 +127,8 @@ function minifySvg () {
             if (options.logger) verbose.call(this, assetTxt, result.data, path, 'svg')
             resolve(route.set(path, result.data))
           } catch (err) {
+            error(err)
             reject(err)
-            throw new Error(err)
           }
         }
       })
@@ -159,8 +164,8 @@ function gzipFn () {
             if (options.logger) verbose.call(this, assetTxt, result.toString(), path, 'gzip')
             resolve(route.set(path + '.gz', result))
           } catch (err) {
+            error(err)
             reject(err)
-            throw new Error(err)
           }
         }
       })
@@ -198,8 +203,8 @@ function brotliFn () {
             if (options.logger) verbose.call(this, input, result.toString(), path, 'brotli')
             resolve(route.set(path + '.br', result))
           } catch (err) {
+            error(err)
             reject(err)
-            throw new Error(err)
           }
         }
       })