fs-tools - npm Package Compare versions

Comparing version 0.2.3 to 0.2.4

HISTORY.md

@@ -0,5 +1,12 @@
+0.2.4 / 2012-08-19
+------------------
+
+* Added FsTools.move()
+* Added FsTools.tmpdir()
+
+
 0.2.3 / 2012-08-09
 ------------------
 
-* Added removeSync method
+* Added FsTools.removeSync() method
 
@@ -12,2 +19,3 @@
 
+
 0.2.1 / 2012-02-09
@@ -18,2 +26,3 @@ ------------------
 
+
 0.2.0 / 2012-02-08
@@ -25,2 +34,3 @@ ------------------
 
+
 0.1.1 / 2012-02-06
@@ -31,2 +41,3 @@ ------------------
 
+
 0.1.0 / 2011-11-24
@@ -33,0 +44,0 @@ ------------------

lib/fs-tools.js

@@ -25,2 +25,3 @@ /**
 var dirname = require('path').dirname;
+var crypto = require('crypto');
 
@@ -506,1 +507,80 @@
 };
+
+
+/**
+ *  FsTools.move(source, destination, callback) -> Void
+ *  - source (String): Source filename
+ *  - destination (String): Destination filename
+ *
+ *  Moves file from `source` to `destination`.
+ **/
+module.exports.move = function move(source, destination, callback) {
+  fs.lstat(source, function (err, stats) {
+    if (err) {
+      callback(err);
+      return;
+    }
+
+    fs.rename(source, destination, function (err) {
+      if (!err) {
+        callback();
+        return;
+      }
+
+      // TODO: Needs testing coverage
+
+      // normally err.code can be:
+      // - EXDEV (different partitions/devices)
+      // - ENOTEMPTY (source and destination are not-empty dirs)
+      // - EISDIR (destionation is dir, source is file)
+
+      async.series([
+        async.apply(fstools.copy, source, destination),
+        async.apply(fstools.remove, source)
+      ], function (err/*, results*/) {
+        callback();
+      });
+    });
+  });
+};
+
+
+/**
+ *  FsTools.tmpdir([template = /tmp/fstools.XXXXXX])
+ *  - template (String): Temporary directory pattern.
+ *
+ *  Returns non-existing (at the moment of request) temporary directory path.
+ *  `template` must contain a substring with at least 3 consecutive `X`, that
+ *  will be replaced with pseudo-random string of the same length.
+ *
+ *
+ *  ##### Example
+ *
+ *      fstools.tmpdir('/tmp/fooXXX');      // -> '/tmp/fooa2f'
+ *      fstools.tmpdir('/tmp/fooXXX');      // -> '/tmp/foocb1'
+ *      fstools.tmpdir('/tmp/foo-XXXXXX');  // -> '/tmp/foo-ad25e0'
+ **/
+module.exports.tmpdir = function tmpdir(template) {
+  var match = (template || '/tmp/fstools.XXXXXX').match(/^(.*?)(X{3,})(.*?)$/),
+      attempts, length, random, pathname;
+
+  if (!match) {
+    throw new Error("Invalid tmpdir template: " + template);
+  }
+
+  attempts = 5;
+  length   = match[2].length;
+
+  // Do not try more than attempts of times
+  while (attempts--) {
+    random   = crypto.randomBytes(Math.ceil(length / 2)).toString('hex').substring(0, length);
+    pathname = (match[1] || '') + random + (match[3] || '');
+
+    if (!fs.existsSync(pathname)) {
+      // Generated pathname is uniq - return it
+      return pathname;
+    }
+  }
+
+  throw new Error("Failed to generate uniq tmpdir with template: " + template);
+};

package.json

 {
   "name"            : "fs-tools",
-  "version"         : "0.2.3",
+  "version"         : "0.2.4",
   "description"     : "fs helper utilities (walk, copy, mkdir -p)",
@@ -5,0 +5,0 @@ "keywords"        : ["fs", "file", "utils"],

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Total package byte prevSize

37060

increased by6.84%

Lines of code

820

increased by8.9%

Number of high supply chain risk alerts

0

decreased by-100%

No dependency changes