新增调试信息

libcore/node_modules/cached-path-relative/lib/index.js

@@ -0,0 +1,43 @@
+/**
+ * Modules
+ */
+
+var path = require('path')
+
+/**
+ * Vars
+ */
+
+var relative = path.relative
+var lastCwd = process.cwd()
+var cache = Object.create(null)
+
+/**
+ * Expose cachedPathRelative
+ */
+
+module.exports = cachedPathRelative
+
+/**
+ * cachedPathRelative
+ */
+
+function cachedPathRelative (from, to) {
+  // If the current working directory changes, we need
+  // to invalidate the cache
+  var cwd = process.cwd()
+  if (cwd !== lastCwd) {
+    cache = Object.create(null)
+    lastCwd = cwd
+  }
+
+  if (cache[from] && cache[from][to]) return cache[from][to]
+
+  var result = relative.call(path, from, to)
+
+  cache[from] = cache[from] || Object.create(null)
+  cache[from][to] = result
+
+  return result
+
+}