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Fix #308 - fs.rename does not work on directories

This commit is contained in:
gideonthomas 2014-10-15 22:04:03 -04:00 committed by Gideon Thomas
parent e39129a7f4
commit d28100c422
2 changed files with 197 additions and 2 deletions
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95
src/filesystem/implementation.js
View File

@ -1974,7 +1974,88 @@ function rename(fs, context, oldpath, newpath, callback) {
if(!pathCheck(oldpath, callback)) return;
if(!pathCheck(newpath, callback)) return;
function unlink_old_node(error) {
var oldParentPath = Path.dirname(oldpath);
var newParentPath = Path.dirname(oldpath);
var oldName = Path.basename(oldpath);
var newName = Path.basename(newpath);
var oldParentDirectory, oldParentData;
var newParentDirectory, newParentData;
function update_times(error, newNode) {
if(error) {
callback(error);
} else {
update_node_times(context, newpath, newNode, { ctime: Date.now() }, callback);
}
}
function read_new_directory(error) {
if(error) {
callback(error);
} else {
context.getObject(newParentData[newName].id, update_times);
}
}
function update_old_parent_directory_data(error) {
if(error) {
callback(error);
} else {
delete oldParentData[oldName];
context.putObject(oldParentDirectory.data, oldParentData, read_new_directory);
}
}
function update_new_parent_directory_data(error) {
if(error) {
callback(error);
} else {
newParentData[newName] = oldParentData[oldName];
context.putObject(newParentDirectory.data, newParentData, update_old_parent_directory_data);
}
}
function check_if_new_directory_exists(error, result) {
if(error) {
callback(error);
} else {
newParentData = result;
if(_(newParentData).has(newName)) {
remove_directory(context, newpath, update_new_parent_directory_data);
} else {
update_new_parent_directory_data();
}
}
}
function read_new_parent_directory_data(error, result) {
if(error) {
callback(error);
} else {
newParentDirectory = result;
context.getObject(newParentDirectory.data, check_if_new_directory_exists);
}
}
function get_new_parent_directory(error, result) {
if(error) {
callback(error);
} else {
oldParentData = result;
find_node(context, newParentPath, read_new_parent_directory_data);
}
}
function read_parent_directory_data(error, result) {
if(error) {
callback(error);
} else {
oldParentDirectory = result;
context.getObject(result.data, get_new_parent_directory);
}
}
function unlink_old_file(error) {
if(error) {
callback(error);
} else {
@ -1982,7 +2063,17 @@ function rename(fs, context, oldpath, newpath, callback) {
}
}
link_node(context, oldpath, newpath, unlink_old_node);
function check_node_type(error, node) {
if(error) {
callback(error);
} else if(node.mode === 'DIRECTORY') {
find_node(context, oldParentPath, read_parent_directory_data);
} else {
link_node(context, oldpath, newpath, unlink_old_file);
}
}
find_node(context, oldpath, check_node_type);
}
function symlink(fs, context, srcpath, dstpath, type, callback) {

104
tests/spec/fs.rename.spec.js
View File

@ -47,4 +47,108 @@ describe('fs.rename', function() {
});
});
});
it('should rename an existing directory', function(done) {
var fs = util.fs();
fs.mkdir('/mydir', function(error) {
if(error) throw error;
fs.rename('/mydir', '/myotherdir', function(error) {
expect(error).not.to.exist;
fs.stat('/mydir', function(error) {
expect(error).to.exist;
expect(error.code).to.equal('ENOENT');
fs.stat('/myotherdir', function(error, result) {
expect(error).not.to.exist;
expect(result.nlinks).to.equal(1);
done();
});
});
});
});
});
it('should rename an existing directory if the new path points to an existing directory', function(done) {
var fs = util.fs();
fs.mkdir('/mydir', function(error) {
if(error) throw error;
fs.mkdir('/myotherdir', function(error) {
if(error) throw error;
fs.rename('/mydir', '/myotherdir', function(error) {
expect(error).not.to.exist;
fs.stat('/mydir', function(error) {
expect(error).to.exist;
expect(error.code).to.equal('ENOENT');
fs.stat('/myotherdir', function(error, result) {
expect(error).not.to.exist;
expect(result.nlinks).to.equal(1);
done();
});
});
});
});
});
});
it('should fail to rename an existing directory if the new path points to an existing directory that is not empty', function(done) {
var fs = util.fs();
fs.mkdir('/mydir', function(error) {
if(error) throw error;
fs.mkdir('/myotherdir', function(error) {
if(error) throw error;
fs.writeFile('/myotherdir/myfile', 'This is a file', function(error) {
if(error) throw error;
fs.rename('/mydir', '/myotherdir', function(error) {
expect(error).to.exist;
expect(error.code).to.equal('ENOTEMPTY');
fs.stat('/mydir', function(error) {
expect(error).not.to.exist;
fs.stat('/myotherdir', function(error) {
expect(error).not.to.exist;
done();
});
});
});
});
});
});
});
it('should fail to rename an existing directory if the new path points to an existing file', function(done) {
var fs = util.fs();
fs.mkdir('/mydir', function(error) {
if(error) throw error;
fs.writeFile('/myfile', 'This is a file', function(error) {
if(error) throw error;
fs.rename('/mydir', '/myfile', function(error) {
expect(error).to.exist;
expect(error.code).to.equal('ENOTDIR');
fs.stat('/mydir', function(error) {
expect(error).not.to.exist;
fs.stat('/myfile', function(error) {
expect(error).not.to.exist;
done();
});
});
});
});
});
});
});