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WIP

This commit is contained in:
Alan Kligman 2013-05-30 19:07:21 -04:00
parent 11d0a4de7f
commit a2ff2823dc
2 changed files with 79 additions and 29 deletions
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2
examples/refactoring-test.html
View File

@ -38,7 +38,7 @@ function remove_tmp_directory() {
fs.promise.then(make_tmp_directory)
.then(remove_tmp_directory)
.then(function() { console.log('done'); })
.otherwise(function(error) { console.error(error.message); });
.otherwise(function(error) { console.error(error.stack); });
});
</script>

106
src/fs2.js
View File

@ -5,9 +5,59 @@ define(function(require) {
var _ = require('lodash');
var when = require('when');
var Path = require('src/path');
var guid = require("src/guid");
var guid = require('src/guid');
require("crypto-js/rollups/sha256"); var Crypto = CryptoJS;
function EPathExists(){ Error.apply(this, arguments); }
EPathExists.prototype = new Error();
EPathExists.prototype.name = "EPathExists";
EPathExists.prototype.constructor = EPathExists;
function EIsDirectory(){ Error.apply(this, arguments); }
EIsDirectory.prototype = new Error();
EIsDirectory.prototype.name = "EIsDirectory";
EIsDirectory.prototype.constructor = EIsDirectory;
function ENoEntry(){ Error.apply(this, arguments); }
ENoEntry.prototype = new Error();
ENoEntry.prototype.name = "ENoEntry";
ENoEntry.prototype.constructor = ENoEntry;
function EBusy(){ Error.apply(this, arguments); }
EBusy.prototype = new Error();
EBusy.prototype.name = "EBusy";
EBusy.prototype.constructor = EBusy;
function ENotEmpty(){ Error.apply(this, arguments); }
ENotEmpty.prototype = new Error();
ENotEmpty.prototype.name = "ENotEmpty";
ENotEmpty.prototype.constructor = ENotEmpty;
function ENotDirectory(){ Error.apply(this, arguments); }
ENotDirectory.prototype = new Error();
ENotDirectory.prototype.name = "NotADirectoryError";
ENotDirectory.prototype.constructor = ENotDirectory;
function EBadFileDescriptor(){ Error.apply(this, arguments); }
EBadFileDescriptor.prototype = new Error();
EBadFileDescriptor.prototype.name = "EBadFileDescriptor";
EBadFileDescriptor.prototype.constructor = EBadFileDescriptor;
function ENotImplemented(){ Error.apply(this, arguments); }
ENotImplemented.prototype = new Error();
ENotImplemented.prototype.name = "ENotImplemented";
ENotImplemented.prototype.constructor = ENotImplemented;
function ENotMounted(){ Error.apply(this, arguments); }
ENotMounted.prototype = new Error();
ENotMounted.prototype.name = "ENotMounted";
ENotMounted.prototype.constructor = ENotMounted;
function EFileExists(){ Error.apply(this, arguments); }
EFileExists.prototype = new Error();
EFileExists.prototype.name = "EFileExists";
EFileExists.prototype.constructor = EFileExists;
var METADATA_STORE_NAME = 'metadata';
var FILE_STORE_NAME = 'files';
@ -103,7 +153,7 @@ define(function(require) {
if(error) {
callback(error);
} else if(!rootDirectoryNode) {
callback(new Error('ENOENT'));
callback(new ENoEntry());
} else {
callback(undefined, rootDirectoryNode);
}
@ -117,7 +167,7 @@ define(function(require) {
if(error) {
callback(error);
} else if(!_(parentDirectoryNode).has('data') || !parentDirectoryNode.type == MODE_DIRECTORY) {
callback(new Error('ENOTDIR'));
callback(new ENotDirectory());
} else {
read_object(objectStore, parentDirectoryNode.data, get_node_id_from_parent_directory_data);
}
@ -130,7 +180,7 @@ define(function(require) {
callback(error);
} else {
if(!_(parentDirectoryData).has(name)) {
callback(new Error('ENOENT'));
callback(new ENoEntry());
} else {
var nodeId = parentDirectoryData[name].id;
read_object(objectStore, nodeId, callback);
@ -150,8 +200,8 @@ define(function(require) {
function write_directory_node(error, existingNode) {
if(!error && existingNode) {
callback(new Error('EEXIST'));
} else if(error && 'ENOENT' != error.message) {
callback(new EPathExists());
} else if(error && !error instanceof ENoEntry) {
callback(error);
} else {
directoryNode = new Node(ROOT_NODE_ID, MODE_DIRECTORY);
@ -177,38 +227,38 @@ define(function(require) {
var name = Path.basename(path);
var parentPath = Path.dirname(path);
var _directoryNode;
var _directoryData;
var _parentDirectoryNode;
var _parentDirectoryData;
var directoryNode;
var directoryData;
var parentDirectoryNode;
var parentDirectoryData;
function check_if_directory_exists(error, existingNode) {
if(!error && existingNode) {
callback(new Error('EEXIST'));
} else if(error && 'ENOENT' != error.message) {
function check_if_directory_exists(error, result) {
if(!error && result) {
callback(new EPathExists());
} else if(error && !error instanceof ENoEntry) {
callback(error);
} else {
find_node(objectStore, parentPath, read_parent_directory_data);
}
}
function read_parent_directory_data(error, parentDirectoryNode) {
function read_parent_directory_data(error, result) {
if(error) {
callback(error);
} else {
_parentDirectoryNode = parentDirectoryNode;
read_object(objectStore, _parentDirectoryNode.data, write_directory_node);
parentDirectoryNode = result;
read_object(objectStore, parentDirectoryNode.data, write_directory_node);
}
};
function write_directory_node(error, parentDirectoryData) {
function write_directory_node(error, result) {
if(error) {
callback(error);
} else {
_parentDirectoryData = parentDirectoryData;
_directoryNode = new Node(undefined, MODE_DIRECTORY);
_directoryNode.links += 1;
write_object(objectStore, _directoryNode, _directoryNode.id, write_directory_data);
parentDirectoryData = result;
directoryNode = new Node(undefined, MODE_DIRECTORY);
directoryNode.links += 1;
write_object(objectStore, directoryNode, directoryNode.id, write_directory_data);
}
};
@ -216,8 +266,8 @@ define(function(require) {
if(error) {
callback(error);
} else {
_directoryData = {};
write_object(objectStore, _directoryData, _directoryNode.data, update_parent_directory_data);
directoryData = {};
write_object(objectStore, directoryData, directoryNode.data, update_parent_directory_data);
}
};
@ -225,8 +275,8 @@ define(function(require) {
if(error) {
callback(error);
} else {
_parentDirectoryData[name] = new DirectoryEntry(_directoryNode.id, MODE_DIRECTORY);
write_object(objectStore, _parentDirectoryData, _parentDirectoryNode.data, callback);
parentDirectoryData[name] = new DirectoryEntry(directoryNode.id, MODE_DIRECTORY);
write_object(objectStore, parentDirectoryData, parentDirectoryNode.data, callback);
}
}
@ -247,7 +297,7 @@ define(function(require) {
if(error) {
callback(error);
} else if(!result) {
callback(new Error('ENOENT'));
callback(new ENoEntry());
} else {
directoryNode = result;
read_object(objectStore, directoryNode.data, check_if_directory_is_empty);
@ -260,7 +310,7 @@ define(function(require) {
} else {
directoryData = result;
if(_(directoryData).size() > 0) {
callback(new Error('ENOTEMPTY'));
callback(new ENotEmpty());
} else {
find_node(objectStore, parentPath, read_parent_directory_data);
}