add file util

Author: maxbbn

lib/fileutil.js

@@ -22,36 +22,103 @@ function findInDir(dir, reg, callback) {
 
     dir = path.resolve(dir);
 
-    function listDir(dir, from, callback) {
+    fs.exists(dir, function (exist) {
+        if(!exist) {
+            callback(new Error('findInDir: path ' + dir + ' not exist;'));
+            return;
+        }
 
-        fs.readdir(dir, function(err, list){
+        listDir(dir, '', function(err, list) {
             if (err) {
                 callback(err);
                 return;
             }
-            
-            list = list.filter(function (file) {
-                return !(/^\./.test(file));
-            });
-
-            async.map(list, function(p, callback){
-                var abs = path.join(dir, p);
-                var p2 = path.join(from, p);
-
-                fs.stat(abs, function(err, stat){
-                    if (err) {
-                        callback(err);
-                        return;
-                    }
-                    if (stat.isDirectory()) {
-                        listDir(abs, p2, callback);
-                    } else {
-                        callback(null, p2);
+            var result = _.chain(list)
+                .flatten()
+                .filter(function(p){
+                    if(reg instanceof RegExp) {
+                        return reg.test(p);
                     }
+                    return true;
                 })
-            }, callback);
+                .value();
+
+            callback(null, result);
         });
-    }
+    });
+}
+
+function listDir(dir, from, callback) {
+
+    fs.readdir(dir, function(err, list){
+        if (err) {
+            callback(err);
+            return;
+        }
+
+        list = list.filter(function (file) {
+            return !(/^\./.test(file));
+        });
+
+        async.map(list, function(p, callback){
+            var abs = path.join(dir, p);
+            var p2 = path.join(from, p);
+
+            fs.stat(abs, function(err, stat){
+                if (err) {
+                    callback(err);
+                    return;
+                }
+                if (stat.isDirectory()) {
+                    listDir(abs, p2, callback);
+                } else {
+                    callback(null, p2);
+                }
+            })
+        }, callback);
+    });
+}
+
+var statTree = exports.statTree = function (dir, fn, callback) {
+
+    fs.readdir(dir, function(err, list) {
+
+        if (err) {
+            callback(err);
+            return;
+        }
+
+        // 排除隐藏文件
+        list = list.filter(function (file) {
+            return !(/^\./.test(file));
+        });
+
+        async.each(list, function(p, callback){
+            var abs = path.join(dir, p);
+
+            fs.stat(abs, function(err, stat){
+
+                if (err) {
+                    callback(err);
+                    return;
+                }
+
+                fn({
+                    path: abs,
+                    stat: stat
+                });
+
+                if (stat.isDirectory()) {
+                    statTree(abs, fn, callback);
+                }
+            })
+        }, callback);
+    });
+}
+
+exports.TreeWalker = function (dir, fn, callback) {
+
+
 
     fs.exists(dir, function (exist) {
         if(!exist) {
@@ -77,8 +144,6 @@ function findInDir(dir, reg, callback) {
             callback(null, result);
         });
     });
-
-    
 };
 
 /**
@@ -116,7 +181,7 @@ var copyDirSync = exports.copyDirSync = function (src_path, target_path, config)
     }
 
 
-    fs.readdirSync(src_path).forEach(function (p){
+    fs.readdirSync(src_path).forEach(function (p) {
         var skip = false;
         if (config.excludes) {
             config.excludes.forEach(function (reg) {