filled in some more deck.fs methods

deck/fs.py

@@ -1,6 +1,8 @@
 # deck.fs: FS interaction helpers (WIP)
 # Created by Luxferre in 2025, released into public domain
 
+import os
+
 MCU_STORAGE = False
 try:
   import storage
@@ -15,3 +17,55 @@ def unlock_rootfs():
 def lock_rootfs():
   if MCU_STORAGE:
     storage.remount("/", readonly=True)
+
+# Some shortcut export bindings to corresponding os functions
+# ['mount', 'putenv', 'stat', 'statvfs', 'system', 'umount', 'unlink', 'unsetenv', 'urandom']
+
+sep = pathsep = os.sep
+cwd = pwd = os.getcwd
+ls = listdir = os.listdir
+md = mkdir = os.mkdir
+cd = chdir = os.chdir
+rd = rmdir = os.rmdir
+rm = remove = os.remove
+mv = rename = move = os.rename
+try:
+  sync = os.sync
+except:
+  def sync(): pass
+env = getenv = os.getenv
+rnd = urandom = os.urandom
+
+# adapted statistics methods
+
+# for a file
+def stat(path):
+  st_mode, _, _, _, _, _, \
+    st_size, st_atime, st_mtime, st_ctime = os.stat(path)
+  return {
+    'mode': st_mode,
+    'size': st_size,
+    'atime': st_atime,
+    'mtime': st_mtime,
+    'ctime': st_ctime
+  }
+
+# for a filesystem
+def statvfs(path):
+  f_bsize, f_frsize, f_frags, f_bfree, f_bavail, f_files, \
+    f_ffree, f_favail, f_flag, f_namemax = os.statvfs(path)
+  return {
+    'block_size': f_bsize,
+    'fragment_size': f_frsize,
+    'fragments': f_frags,
+    'blocks_free': f_bfree,
+    'blocks_avail': f_bavail,
+    'inodes': f_files,
+    'inodes_free': f_ffree,
+    'inodes_avail': f_favail,
+    'mount_flags': f_flag,
+    'max_name_len': f_namemax
+  }
+
+du = stat # shortcut export
+df = statvfs # shortcut export