perf: avoid extra call stat for file (#365)

webpack-contrib · Mar 22, 2019 · ae2258f · ae2258f
1 parent 94086af
commit ae2258f
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Showing 2 changed files with 6 additions and 1 deletion.
diff --git a/src/postProcessPattern.js b/src/postProcessPattern.js
@@ -25,7 +25,11 @@ export default function postProcessPattern(globalRef, pattern, file) {
 
   logger.debug(`getting stats for '${file.absoluteFrom}' to write to assets`);
 
-  return stat(inputFileSystem, file.absoluteFrom).then((stats) => {
+  const getStats = pattern.stats
+    ? Promise.resolve().then(() => pattern.stats)
+    : stat(inputFileSystem, file.absoluteFrom);
+
+  return getStats.then((stats) => {
     // We don't write empty directories
     if (stats.isDirectory()) {
       logger.debug(

diff --git a/src/preProcessPattern.js b/src/preProcessPattern.js
@@ -158,6 +158,7 @@ export default function preProcessPattern(globalRef, pattern) {
 
         fileDependencies.add(pattern.absoluteFrom);
 
+        pattern.stats = stats;
         pattern.fromType = 'file';
         pattern.context = path.dirname(pattern.absoluteFrom);
         pattern.glob = normalize(pattern.absoluteFrom);