fix: print deprecation warning only when plugin is used

postcss · May 13, 2022 · fc19f1b · fc19f1b
1 parent 80608c6
commit fc19f1b
Showing 1 changed file with 15 additions and 13 deletions.
diff --git a/lib/postcss.js b/lib/postcss.js
@@ -27,25 +27,27 @@ function postcss(...plugins) {
 }
 
 postcss.plugin = function plugin(name, initializer) {
-  // eslint-disable-next-line no-console
-  if (console && console.warn) {
+  let warningPrinted = false
+  function creator(...args) {
     // eslint-disable-next-line no-console
-    console.warn(
-      name +
-        ': postcss.plugin was deprecated. Migration guide:\n' +
-        'https://evilmartians.com/chronicles/postcss-8-plugin-migration'
-    )
-    if (process.env.LANG && process.env.LANG.startsWith('cn')) {
-      /* c8 ignore next 7 */
+    if (console && console.warn && !warningPrinted) {
+      warningPrinted = true
       // eslint-disable-next-line no-console
       console.warn(
         name +
-          ': 里面 postcss.plugin 被弃用. 迁移指南:\n' +
-          'https://www.w3ctech.com/topic/2226'
+          ': postcss.plugin was deprecated. Migration guide:\n' +
+          'https://evilmartians.com/chronicles/postcss-8-plugin-migration'
       )
+      if (process.env.LANG && process.env.LANG.startsWith('cn')) {
+        /* c8 ignore next 7 */
+        // eslint-disable-next-line no-console
+        console.warn(
+          name +
+            ': 里面 postcss.plugin 被弃用. 迁移指南:\n' +
+            'https://www.w3ctech.com/topic/2226'
+        )
+      }
     }
-  }
-  function creator(...args) {
     let transformer = initializer(...args)
     transformer.postcssPlugin = name
     transformer.postcssVersion = new Processor().version