Finish atime, ctime, mtime updates for fs operations, fix tests

src/constants.js

@@ -58,6 +58,10 @@ define(function(require) {
     XATTR_CREATE: XATTR_CREATE,
     XATTR_REPLACE: XATTR_REPLACE,
 
+    NOATIME: 'NOATIME',
+    NOCTIME: 'NOCTIME',
+    NOMTIME: 'NOMTIME',
+
     FS_READY: 'READY',
     FS_PENDING: 'PENDING',
     FS_ERROR: 'ERROR',

src/fs.js

@@ -52,6 +52,9 @@ define(function(require) {
   var O_FLAGS = require('src/constants').O_FLAGS;
   var XATTR_CREATE = require('src/constants').XATTR_CREATE;
   var XATTR_REPLACE = require('src/constants').XATTR_REPLACE;
+  var NOATIME = require('src/constants').NOATIME;
+  var NOMTIME = require('src/constants').NOMTIME;
+  var NOCTIME = require('src/constants').NOCTIME;
 
   var providers = require('src/providers/providers');
   var adapters = require('src/adapters/adapters');
@@ -131,19 +134,41 @@ define(function(require) {
 
   /*
    * Update node times. Only passed times are modified (undefined times are ignored)
+   * and filesystem flags are examined in order to override update logic.
    */
   function update_node_times(context, path, node, times, callback) {
+    // Honour mount flags for how we update times
+    var flags = context.flags;
+    if(_(flags).contains(NOCTIME)) {
+      delete times.ctime;
+    }
+    if(_(flags).contains(NOATIME)) {
+      delete times.atime;
+    }
+    if(_(flags).contains(NOMTIME)) {
+      delete times.mtime;
+    }
+
+    // Only do the update if required (i.e., times are still present)
+    var update = false;
     if(times.ctime) {
       node.ctime = times.ctime;
-    }
+      update = true;
-    if(times.mtime) {
-      node.mtime = times.mtime;
     }
     if(times.atime) {
       node.atime = times.atime;
+      update = true;
+    }
+    if(times.mtime) {
+      node.mtime = times.mtime;
+      update = true;
     }
 
+    if(update) {
       context.put(node.id, node, callback);
+    } else {
+      callback();
+    }
   }
 
   /*
@@ -249,9 +274,19 @@ define(function(require) {
    */
 
   function set_extended_attribute (context, path_or_fd, name, value, flag, callback) {
+    var path;
+
     function set_xattr (error, node) {
       var xattr = (node ? node.xattrs[name] : null);
 
+      function update_time(error) {
+        if(error) {
+          callback(error);
+        } else {
+          update_node_times(context, path, node, { ctime: Date.now() }, callback);
+        }
+      }
+
       if (error) {
         callback(error);
       }
@@ -263,14 +298,16 @@ define(function(require) {
       }
       else {
         node.xattrs[name] = value;
-        context.put(node.id, node, callback);
+        context.put(node.id, node, update_time);
       }
     }
 
     if (typeof path_or_fd == 'string') {
+      path = path_or_fd;
       find_node(context, path_or_fd, set_xattr);
     }
     else if (typeof path_or_fd == 'object' && typeof path_or_fd.id == 'string') {
+      path = path_or_fd.path;
       context.get(path_or_fd.id, set_xattr);
     }
     else {
@@ -374,12 +411,21 @@ define(function(require) {
       }
     }
 
+    function update_time(error) {
+      if(error) {
+        callback(error);
+      } else {
+        var now = Date.now();
+        update_node_times(context, parentPath, parentDirectoryNode, { mtime: now, ctime: now }, callback);
+      }
+    }
+
     function update_parent_directory_data(error) {
       if(error) {
         callback(error);
       } else {
         parentDirectoryData[name] = new DirectoryEntry(directoryNode.id, MODE_DIRECTORY);
-        context.put(parentDirectoryNode.data, parentDirectoryData, callback);
+        context.put(parentDirectoryNode.data, parentDirectoryData, update_time);
       }
     }
 
@@ -447,9 +493,18 @@ define(function(require) {
       }
     }
 
+    function update_time(error) {
+      if(error) {
+        callback(error);
+      } else {
+        var now = Date.now();
+        update_node_times(context, parentPath, parentDirectoryNode, { mtime: now, ctime: now }, remove_directory_node);
+      }
+    }
+
     function remove_directory_entry_from_parent_directory_node() {
       delete parentDirectoryData[name];
-      context.put(parentDirectoryNode.data, parentDirectoryData, remove_directory_node);
+      context.put(parentDirectoryNode.data, parentDirectoryData, update_time);
     }
 
     function remove_directory_node(error) {
@@ -566,7 +621,9 @@ define(function(require) {
         callback(error);
       } else {
         fileNode = result;
-        callback(null, fileNode);
+        update_node_times(context, path, fileNode, { atime: Date.now() }, function(error) {
+          callback(error, fileNode);
+        });
       }
     }
 
@@ -585,12 +642,21 @@ define(function(require) {
       }
     }
 
+    function update_time(error) {
+      if(error) {
+        callback(error);
+      } else {
+        var now = Date.now();
+        update_node_times(context, parentPath, directoryNode, { mtime: now, ctime: now }, handle_update_result);
+      }
+    }
+
     function update_directory_data(error) {
       if(error) {
         callback(error);
       } else {
         directoryData[name] = new DirectoryEntry(fileNode.id, MODE_FILE);
-        context.put(directoryNode.data, directoryData, handle_update_result);
+        context.put(directoryNode.data, directoryData, update_time);
       }
     }
 
@@ -736,13 +802,27 @@ define(function(require) {
       }
     }
 
+    function update_time(error) {
+      if(error) {
+        callback(error);
+      } else {
+
+      }
+    }
+
     function read_file_data(error, result) {
       if(error) {
         callback(error);
       } else {
         fileNode = result;
+        update_node_times(context, ofd.path, fileNode, { atime: Date.now() }, function(error) {
+          if(error) {
+            callback(error);
+          } else {
             context.get(fileNode.data, handle_file_data);
           }
+        });
+      }
     }
 
     context.get(ofd.id, read_file_data);
@@ -756,7 +836,9 @@ define(function(require) {
       if(error) {
         callback(error);
       } else {
-        callback(null, result);
+        update_node_times(context, path, result, { atime: Date.now() }, function(error) {
+          callback(error, result);
+        });
       }
     }
 
@@ -768,7 +850,9 @@ define(function(require) {
       if(error) {
         callback(error);
       } else {
-        callback(null, result);
+        update_node_times(context, ofd.path, result, { atime: Date.now() }, function(error) {
+          callback(error, result);
+        });
       }
     }
 
@@ -815,7 +899,9 @@ define(function(require) {
       if(error) {
         callback(error);
       } else {
-        callback(null, result);
+        update_node_times(context, path, result, { atime: Date.now() }, function(error) {
+          callback(error, result);
+        });
       }
     }
   }
@@ -835,13 +921,21 @@ define(function(require) {
     var newDirectoryData;
     var fileNode;
 
+    function update_time(error) {
+      if(error) {
+        callback(error);
+      } else {
+        update_node_times(context, newpath,  fileNode, { ctime: Date.now() }, callback);
+      }
+    }
+
     function update_file_node(error, result) {
       if(error) {
         callback(error);
       } else {
         fileNode = result;
         fileNode.nlinks += 1;
-        context.put(fileNode.id, fileNode, callback);
+        context.put(fileNode.id, fileNode, update_time);
       }
     }
 
@@ -915,7 +1009,10 @@ define(function(require) {
         callback(error);
       } else {
         delete directoryData[name];
-        context.put(directoryNode.data, directoryData, callback);
+        context.put(directoryNode.data, directoryData, function(error) {
+          var now = Date.now();
+          update_node_times(context, parentPath, directoryNode, { mtime: now, ctime: now }, callback);
+        });
       }
     }
 
@@ -936,7 +1033,9 @@ define(function(require) {
         if(fileNode.nlinks < 1) {
           context.delete(fileNode.id, delete_file_data);
         } else {
-          context.put(fileNode.id, fileNode, update_directory_data);
+          context.put(fileNode.id, fileNode, function(error) {
+            update_node_times(context, path, fileNode, { ctime: Date.now() }, update_directory_data);
+          });
         }
       }
     }
@@ -1040,12 +1139,21 @@ define(function(require) {
       context.put(fileNode.id, fileNode, update_directory_data);
     }
 
+    function update_time(error) {
+      if(error) {
+        callback(error);
+      } else {
+        var now = Date.now();
+        update_node_times(context, parentPath, directoryNode, { mtime: now, ctime: now }, callback);
+      }
+    }
+
     function update_directory_data(error) {
       if(error) {
         callback(error);
       } else {
         directoryData[name] = new DirectoryEntry(fileNode.id, MODE_SYMBOLIC_LINK);
-        context.put(directoryNode.data, directoryData, callback);
+        context.put(directoryNode.data, directoryData, update_time);
       }
     }
   }
@@ -1339,6 +1447,14 @@ define(function(require) {
     function remove_xattr (error, node) {
       var xattr = (node ? node.xattrs : null);
 
+      function update_time(error) {
+        if(error) {
+          callback(error);
+        } else {
+          update_node_times(context, path, node, { ctime: Date.now() }, callback);
+        }
+      }
+
       if (error) {
         callback(error);
       }
@@ -1347,7 +1463,7 @@ define(function(require) {
       }
       else {
         delete node.xattrs[name];
-        context.put(node.id, node, callback);
+        context.put(node.id, node, update_time);
       }
     }
 
@@ -1365,6 +1481,14 @@ define(function(require) {
   function fremovexattr_file (context, ofd, name, callback) {
 
     function remove_xattr (error, node) {
+      function update_time(error) {
+        if(error) {
+          callback(error);
+        } else {
+          update_node_times(context, ofd.path, node, { ctime: Date.now() }, callback);
+        }
+      }
+
       if (error) {
         callback(error);
       }
@@ -1373,7 +1497,7 @@ define(function(require) {
       }
       else {
         delete node.xattrs[name];
-        context.put(node.id, node, callback);
+        context.put(node.id, node, update_time);
       }
     }
 
@@ -1514,7 +1638,21 @@ define(function(require) {
     // Open file system storage provider
     provider.open(function(err, needsFormatting) {
       function complete(error) {
-        fs.provider = provider;
+        // Wrap the provider so we can extend the context with fs flags.
+        // From this point forward we won't call open again, so drop it.
+        fs.provider = {
+          getReadWriteContext: function() {
+            var context = provider.getReadWriteContext();
+            context.flags = flags;
+            return context;
+          },
+          getReadOnlyContext: function() {
+            var context = provider.getReadOnlyContext();
+            context.flags = flags;
+            return context;
+          }
+        };
+
         if(error) {
           fs.readyState = FS_ERROR;
         } else {

tests/spec/fs.exists.spec.js

@@ -11,9 +11,9 @@ define(["Filer", "util"], function(Filer, util) {
 
     it('should return false if path does not exist', function(done) {
       var fs = util.fs();
+
       fs.exists('/tmp', function(result) {
-        expect(result).to.exist; 
+        expect(result).to.be.false;
-        expect(result).equals(false);
         done();
       });
     });
@@ -23,11 +23,12 @@ define(["Filer", "util"], function(Filer, util) {
 
       fs.open('/myfile', 'w', function(err, fd) {
         if(err) throw err;
+
         fs.close(fd, function(err) {
           if(err) throw err;
+
           fs.exists('/myfile', function(result) {
-              expect(result).to.exist;
+            expect(result).to.be.true;
-              expect(result).equals(true);
             done();
           });
         });
@@ -39,13 +40,15 @@ define(["Filer", "util"], function(Filer, util) {
 
       fs.open('/myfile', 'w', function(error, fd) {
         if(error) throw error;
+
         fs.close(fd, function(error) {
           if(error) throw error;
+
           fs.symlink('/myfile', '/myfilelink', function(error) {
             if(error) throw error;
+
             fs.exists('/myfilelink', function(result) {
-              expect(result).to.exist;
+              expect(result).to.be.true;
-              expect(result).equals(true);
               done();
             });
           });

tests/spec/fs.link.spec.js

@@ -28,7 +28,10 @@ define(["Filer", "util"], function(Filer, util) {
               fs.stat('/myotherfile', function(error, result) {
                 expect(error).not.to.exist;
                 expect(result.nlinks).to.equal(2);
-                expect(result).to.deep.equal(_oldstats);
+                expect(result.dev).to.equal(_oldstats.dev);
+                expect(result.node).to.equal(_oldstats.node);
+                expect(result.size).to.equal(_oldstats.size);
+                expect(result.type).to.equal(_oldstats.type);
                 done();
               });
             });
@@ -52,7 +55,10 @@ define(["Filer", "util"], function(Filer, util) {
               var _linkstats = result;
               fs.lstat('/myotherfile', function (error, result) {
                 expect(error).not.to.exist;
-                expect(result).to.deep.equal(_linkstats);
+                expect(result.dev).to.equal(_linkstats.dev);
+                expect(result.node).to.equal(_linkstats.node);
+                expect(result.size).to.equal(_linkstats.size);
+                expect(result.type).to.equal(_linkstats.type);
                 expect(result.nlinks).to.equal(2);
                 done();
               });

tests/spec/fs.utimes.spec.js

@@ -102,7 +102,6 @@ define(["Filer", "util"], function(Filer, util) {
 
           fs.stat('/testfile', function (error, stat) {
             expect(error).not.to.exist;
-            expect(stat.atime).to.equal(atime);
             expect(stat.mtime).to.equal(mtime);
             done();
           });
@@ -125,7 +124,6 @@ define(["Filer", "util"], function(Filer, util) {
 
           fs.fstat(ofd, function (error, stat) {
             expect(error).not.to.exist;
-            expect(stat.atime).to.equal(atime);
             expect(stat.mtime).to.equal(mtime);
             done();
           });
@@ -146,7 +144,6 @@ define(["Filer", "util"], function(Filer, util) {
 
           fs.stat('/testdir', function (error, stat) {
             expect(error).not.to.exist;
-            expect(stat.atime).to.equal(atime);
             expect(stat.mtime).to.equal(mtime);
             done();
           });

tests/spec/shell/touch.spec.js

@@ -92,7 +92,6 @@ define(["Filer", "util"], function(Filer, util) {
 
             getTimes(fs, '/newfile', function(times) {
               expect(times.mtime).to.equal(date);
-              expect(times.atime).to.equal(date);
               done();
             });
           });