fix: race conditions

Author: gururaj1512

lib/node_modules/@stdlib/fs/resolve-parent-paths-by/lib/main.js

@@ -185,20 +185,7 @@ function some( paths, dir, predicate, done ) {
 			if ( bool ) {
 				out.push( spath );
 			}
-		}
-
-		/**
-		* Callback invoked after checking for path existence.
-		*
-		* @private
-		* @param {(Error|null)} error - error object
-		* @param {boolean} bool - boolean indicating if a path exists
-		* @returns {void}
-		*/
-		function onExists( error, bool ) { // eslint-disable-line node/handle-callback-err
-			if ( bool ) {
-				predicate( spath, onPredicate );
-			}
+			// Increment flag after `test` completes:
 			FLG += 1;
 			if ( FLG === paths.length ) {
 				// Check if we have resolved any paths...
@@ -220,6 +207,41 @@ function some( paths, dir, predicate, done ) {
 				return next( dir );
 			}
 		}
+
+		/**
+		* Callback invoked after checking for path existence.
+		*
+		* @private
+		* @param {(Error|null)} error - error object
+		* @param {boolean} bool - boolean indicating if a path exists
+		* @returns {void}
+		*/
+		function onExists( error, bool ) { // eslint-disable-line node/handle-callback-err
+			if ( bool ) {
+				predicate( spath, onPredicate );
+			} else {
+				FLG += 1;
+				if ( FLG === paths.length ) {
+					// Check if we have resolved any paths...
+					if ( out.length > 0 ) {
+						return done( null, out );
+					}
+					// Resolve a parent directory:
+					child = dir;
+					dir = resolve( dir, '..' );
+
+					// Reset flag:
+					FLG = 0;
+
+					// If we have already reached root, we cannot resolve any higher directories...
+					if ( child === dir ) {
+						return done( null, out );
+					}
+					// Resolve paths at next directory level:
+					return next( dir );
+				}
+			}
+		}
 	}
 }
 
@@ -286,20 +308,6 @@ function all( paths, dir, predicate, done ) {
 			}
 			if ( bool ) {
 				out[ idx ] = spath;
-			}
-		}
-
-		/**
-		* Callback invoked after checking for path existence.
-		*
-		* @private
-		* @param {(Error|null)} error - error object
-		* @param {boolean} bool - boolean indicating if a path exists
-		* @returns {void}
-		*/
-		function onExists( error, bool ) { // eslint-disable-line node/handle-callback-err
-			if ( bool ) {
-				predicate( spath, onPredicate );
 				count += 1;
 			}
 			FLG += 1;
@@ -325,6 +333,43 @@ function all( paths, dir, predicate, done ) {
 				return next( dir );
 			}
 		}
+
+		/**
+		* Callback invoked after checking for path existence.
+		*
+		* @private
+		* @param {(Error|null)} error - error object
+		* @param {boolean} bool - boolean indicating if a path exists
+		* @returns {void}
+		*/
+		function onExists( error, bool ) { // eslint-disable-line node/handle-callback-err
+			if ( bool ) {
+				predicate( spath, onPredicate );
+			} else {
+				FLG += 1;
+				if ( FLG === paths.length ) {
+					// Check if we have resolved any path...
+					if ( count === paths.length ) {
+						return done( null, out );
+					}
+					// Resolve a parent directory:
+					child = dir;
+					dir = resolve( dir, '..' );
+
+					// Reset flag and buffers:
+					FLG = 0;
+					out = [];
+					count = 0;
+
+					// If we have already reached root, we cannot resolve any higher directories...
+					if ( child === dir ) {
+						return done( null, out );
+					}
+					// Resolve paths at next directory level:
+					return next( dir );
+				}
+			}
+		}
 	}
 }