Expanded on ZipFS and fixed a few bugs.

fs/browsewin.py

@@ -24,7 +24,7 @@ class InfoFrame(wx.Frame):
         self.list_ctrl.SetColumnWidth(1, 300)
 
         for key in keys:
-            self.list_ctrl.Append((key, str(info[key])))
+            self.list_ctrl.Append((key, repr(info[key])))
 
 
 
@@ -38,7 +38,7 @@ class BrowseFrame(wx.Frame):
         self.SetTitle("FS Browser - "+str(fs))
 
         self.tree = wx.gizmos.TreeListCtrl(self, -1, style=wx.TR_DEFAULT_STYLE | wx.TR_HIDE_ROOT)
-        self.tree.AddColumn("FS", 300)
+        self.tree.AddColumn("File System", 300)
         self.tree.AddColumn("Description", 250)
         self.tree.AddColumn("Size", 150)
         self.tree.AddColumn("Created", 250)

fs/memoryfs.py

@@ -156,6 +156,9 @@ class MemoryFS(FS):
     def __str__(self):
         return "<MemoryFS>"
 
+    def __unicode__(self):
+        return unicode(self.__str__())
+
     def _get_dir_entry(self, dirpath):
         self._lock.acquire()
         try:
@@ -212,6 +215,8 @@ class MemoryFS(FS):
             self._lock.release()
 
     def makedir(self, dirname, mode=0777, recursive=False, allow_recreate=False):
+        if not dirname:
+            raise PathError("INVALID_PATH", "Path is empty")
         self._lock.acquire()
         try:
             fullpath = dirname
@@ -234,7 +239,7 @@ class MemoryFS(FS):
                         break
                     if not dir_item.isdir():
                         raise ResourceNotFoundError("NO_DIR", dirname, msg="Can not create a directory, because path references a file: %(path)s")
-                    current_dir = dir_item.contents
+                    current_dir = dir_item
 
                 current_dir = self.root
                 for path_component in _iteratepath(dirpath):

fs/zipfs.py

@@ -3,6 +3,7 @@
 from fs import *
 
 from zipfile import ZipFile, ZIP_DEFLATED, ZIP_STORED
+from memoryfs import MemoryFS
 
 try:
     from cStringIO import StringIO
@@ -44,7 +45,7 @@ class _ExceptionProxy(object):
 class ZipFS(FS):
 
     def __init__(self, zip_file, mode="r", compression="deflated", allowZip64=False):
-        FS.__init__(self)
+        FS.__init__(self, thread_syncronize=True)
         if compression == "deflated":
             compression_type = ZIP_DEFLATED
         elif compression == "stored":
@@ -57,34 +58,58 @@ class ZipFS(FS):
 
         self.zip_mode = mode
         self.zf = ZipFile(zip_file, mode, compression_type, allowZip64)
+        self.zip_path = str(zip_file)
 
         self.temp_fs = None
         if mode in 'wa':
             self.temp_fs = tempfs.TempFS()
 
-        self.resource_list = None
-        if mode == 'r':
-            self.resource_list = self.zf.namelist()
+        self._path_fs = MemoryFS()
+        if mode in 'ra':
+            self._parse_resource_list()
+
+    def __str__(self):
+        return "<ZipFS: %s>" % self.zip_path
+
+    def __unicode__(self):
+        return unicode(self.__str__())
+
+    def _parse_resource_list(self):
+        for path in self.zf.namelist():
+            self._add_resource(path)
+
+    def _add_resource(self, path):
+        if path.endswith('/'):
+            path = path[:-1]
+            self._path_fs.makedir(path, recursive=True, allow_recreate=True)
+        else:
+            dirpath, filename = pathsplit(path)
+            if dirpath:
+                self._path_fs.makedir(dirpath, recursive=True, allow_recreate=True)
+            f = self._path_fs.open(path, 'w')
+            f.close()
 
-    def _get_resource_list(self):
-        if not self.zf:
-            raise ValueError("Zip file has been closed")
-        return self.resource_list or self.zf.namelist()
 
     def close(self):
         """Finalizes the zip file so that it can be read.
         No further operations will work after this method is called."""
-
+        self._lock.acquire()
+        try:
             if self.zf:
                 self.zf.close()
                 self.zf = _ExceptionProxy()
+        finally:
+            self._lock.release()
 
     def __del__(self):
         self.close()
 
     def open(self, path, mode="r", **kwargs):
 
+        self._lock.acquire()
+        try:
             path = normpath(path)
+            self.zip_path = path
 
             if 'r' in mode:
                 if self.zip_mode not in 'ra':
@@ -100,30 +125,67 @@ class ZipFS(FS):
                 if dirname:
                     self.temp_fs.makedir(dirname, recursive=True, allow_recreate=True)
 
+                self._add_resource(path)
                 f = _TempWriteFile(self.temp_fs, path, self._on_write_close)
 
                 return f
 
             raise ValueError("Mode must contain be 'r' or 'w'")
+        finally:
+            self._lock.release()
 
     def _on_write_close(self, filename):
+        self._lock.acquire()
+        try:
             sys_path = self.temp_fs.getsyspath(filename)
             self.zf.write(sys_path, filename)
+        except:
+            self._lock.release()
 
+    def desc(self, path):
+        if self.isdir(path):
+            return "Dir in zip file: %s" % self.zip_path
+        else:
+            return "File in zip file: %s" % self.zip_path
 
-    def listdir(self, path="/", wildcard=None, full=False, absolute=False, hidden=False, dirs_only=False, files_only=False):
+    def isdir(self, path):
+        return self._path_fs.isdir(path)
 
-        path = normpath(path)
+    def isfile(self, path):
+        return self._path_fs.isdir(path)
 
-        def indir(p):
-            p = makeabsolute(p)
-            list_dir = makeabsolute(path)
-            sub_path = normpath(p[len(list_dir)+1:])
-            return sub_path and '/' not in sub_path
+    def exists(self, path):
+        return self._path_fs.exists(path)
 
-        paths = [getresourcename(p.rstrip('/')) for p in self._get_resource_list() if indir(p.rstrip('/'))]
+    def makedir(self, dirname, mode=0777, recursive=False, allow_recreate=False):
+        dirname = normpath(dirname)
+        if self.zip_mode not in "wa":
+            raise OperationFailedError("MAKEDIR_FAILED", dirname, "Zip file must be opened for writing ('w') or appending ('a')")
+        if not dirname.endswith('/'):
+            dirname += '/'
+        self._add_resource(dirname)
 
-        return self._listdir_helper(path, paths, wildcard, full, absolute, hidden, dirs_only, files_only)
+    def listdir(self, path="/", wildcard=None, full=False, absolute=False, hidden=False, dirs_only=False, files_only=False):
+
+        return self._path_fs.listdir(path, wildcard, full, absolute, hidden, dirs_only, files_only)
+
+
+    def getinfo(self, path):
+        self._lock.acquire()
+        try:
+            if not self.exists(path):
+                return ResourceNotFoundError("NO_RESOURCE", path)
+            path = normpath(path).lstrip('/')
+            try:
+                zi = self.zf.getinfo(path)
+                zinfo = dict((attrib, getattr(zi, attrib)) for attrib in dir(zi) if not attrib.startswith('_'))
+            except KeyError:
+                zinfo = {'file_size':0}
+            info = {'size' : zinfo['file_size']}
+            info.update(zinfo)
+            return info
+        finally:
+            self._lock.release()
 
 if __name__ == "__main__":
     def test():
@@ -138,9 +200,31 @@ if __name__ == "__main__":
         zfs = ZipFS("t2.zip", "r")
         print zfs.listdir("/tagging-trunk")
         print zfs.listdir("/")
+        import browsewin
+        browsewin.browse(zfs)
         zfs.close()
-        zfs.open("t.txt")
-        print zfs.listdir("/")
+        #zfs.open("t.txt")
+        #print zfs.listdir("/")
 
     test2()
+
+    zfs = ZipFS("t3.zip", "w")
+    zfs.createfile("t.txt", "Hello, World!")
+    zfs.createfile("foo/bar/baz/t.txt", "Hello, World!")
+    #print zfs.isdir("t.txt")
+    #print zfs.isfile("t.txt")
+    #print zfs.isfile("foo/bar")
+    zfs.close()
+    zfs = ZipFS("t3.zip", "r")
+    print "--"
+    print zfs.listdir("foo")
+    print zfs.isdir("foo/bar")
+    print zfs.listdir("foo/bar")
+    print zfs.listdir("foo/bar/baz")
+    print_fs(zfs)
+
+
+    #zfs = ZipFS("t3.zip", "r")
+    #print zfs.zf.getinfo("asd.txt")
+
     #zfs.close()