fe7f405fc7
These allow accessing the filesystem label. For instance,
in boot.py, you can set the label on the built-in storage with:
storage.remount('/', False)
storage.getmount('/').label = "NEWLABEL"
storage.remount('/', True)
Users with multiple CIRCUITPY boards may find it desirable to
choose a different label for each board they own.
103 lines
2.2 KiB
Python
103 lines
2.2 KiB
Python
try:
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import uerrno
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try:
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import uos_vfs as uos
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except ImportError:
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import uos
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except ImportError:
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print("SKIP")
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raise SystemExit
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try:
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uos.VfsFat
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except AttributeError:
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print("SKIP")
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raise SystemExit
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class RAMFS:
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SEC_SIZE = 512
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def __init__(self, blocks):
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self.data = bytearray(blocks * self.SEC_SIZE)
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def readblocks(self, n, buf):
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#print("readblocks(%s, %x(%d))" % (n, id(buf), len(buf)))
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for i in range(len(buf)):
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buf[i] = self.data[n * self.SEC_SIZE + i]
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def writeblocks(self, n, buf):
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#print("writeblocks(%s, %x)" % (n, id(buf)))
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for i in range(len(buf)):
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self.data[n * self.SEC_SIZE + i] = buf[i]
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def ioctl(self, op, arg):
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#print("ioctl(%d, %r)" % (op, arg))
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if op == 4: # BP_IOCTL_SEC_COUNT
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return len(self.data) // self.SEC_SIZE
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if op == 5: # BP_IOCTL_SEC_SIZE
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return self.SEC_SIZE
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try:
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bdev = RAMFS(50)
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except MemoryError:
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print("SKIP")
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raise SystemExit
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uos.VfsFat.mkfs(bdev)
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print(b"FOO_FILETXT" not in bdev.data)
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print(b"hello!" not in bdev.data)
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vfs = uos.VfsFat(bdev)
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uos.mount(vfs, "/ramdisk")
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vfs.label = 'label test'
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print("label:", vfs.label)
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print("statvfs:", vfs.statvfs("/ramdisk"))
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print("getcwd:", vfs.getcwd())
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try:
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vfs.stat("no_file.txt")
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except OSError as e:
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print(e.args[0] == uerrno.ENOENT)
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with vfs.open("foo_file.txt", "w") as f:
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f.write("hello!")
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print(list(vfs.ilistdir()))
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print("stat root:", vfs.stat("/"))
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print("stat file:", vfs.stat("foo_file.txt")[:-3]) # timestamps differ across runs
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print(b"FOO_FILETXT" in bdev.data)
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print(b"hello!" in bdev.data)
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vfs.mkdir("foo_dir")
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vfs.chdir("foo_dir")
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print("getcwd:", vfs.getcwd())
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print(list(vfs.ilistdir()))
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with vfs.open("sub_file.txt", "w") as f:
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f.write("subdir file")
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try:
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vfs.chdir("sub_file.txt")
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except OSError as e:
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print(e.args[0] == uerrno.ENOENT)
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vfs.chdir("..")
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print("getcwd:", vfs.getcwd())
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uos.umount(vfs)
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vfs = uos.VfsFat(bdev)
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print(list(vfs.ilistdir(b"")))
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# list a non-existent directory
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try:
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vfs.ilistdir(b"no_exist")
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except OSError as e:
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print('ENOENT:', e.args[0] == uerrno.ENOENT)
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