metro-file-map - npm Package Compare versions

Comparing version 0.80.2 to 0.80.3

package.json

 {
   "name": "metro-file-map",
-  "version": "0.80.2",
+  "version": "0.80.3",
   "description": "[Experimental] - 🚇 File crawling, watching and mapping for Metro",
@@ -5,0 +5,0 @@ "main": "src/index.js",

src/lib/fast_path.js

@@ -62,8 +62,26 @@ "use strict";
 function relative(rootDir, filename) {
-  return filename.indexOf(rootDir + path.sep) === 0
-    ? filename.substr(rootDir.length + 1)
-    : path.relative(rootDir, filename);
+  if (filename.indexOf(rootDir + path.sep) === 0) {
+    const relativePath = filename.substr(rootDir.length + 1);
+    // Allow any sequence of indirection fragments at the start of the path,
+    // e.g ../../foo, but bail out to Node's path.relative if we find a
+    // possible indirection after any other segment, or a leading "./".
+    for (let i = 0; ; i += UP_FRAGMENT_LENGTH) {
+      const nextIndirection = relativePath.indexOf(CURRENT_FRAGMENT, i);
+      if (nextIndirection === -1) {
+        return relativePath;
+      }
+      if (
+        nextIndirection !== i + 1 ||
+        // Fallback when ./ later in the path, or leading
+        relativePath[i] !== "." // and for anything other than a leading ../
+      ) {
+        return path.relative(rootDir, filename);
+      }
+    }
+  }
+  return path.relative(rootDir, filename);
 }
-const INDIRECTION_FRAGMENT = ".." + path.sep;
-const INDIRECTION_FRAGMENT_LENGTH = INDIRECTION_FRAGMENT.length;
+const UP_FRAGMENT = ".." + path.sep;
+const UP_FRAGMENT_LENGTH = UP_FRAGMENT.length;
+const CURRENT_FRAGMENT = "." + path.sep;
 
@@ -75,5 +93,5 @@ // rootDir must be an absolute path and normalPath must be a normal relative
 function resolve(rootDir, normalPath) {
-  if (normalPath.startsWith(INDIRECTION_FRAGMENT)) {
+  if (normalPath.startsWith(UP_FRAGMENT)) {
     const dirname = rootDir === "" ? "" : path.dirname(rootDir);
-    return resolve(dirname, normalPath.slice(INDIRECTION_FRAGMENT_LENGTH));
+    return resolve(dirname, normalPath.slice(UP_FRAGMENT_LENGTH));
   } else {
@@ -80,0 +98,0 @@ return (

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Improved metrics

Total package byte prevSize

336316

increased by0.41%

Lines of code

5521

increased by0.33%

No dependency changes