mirror of
https://github.com/licsber/micropython.git
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2acc087880
This commit adds support for modification time of files on littlefs v2 filesystems, using file attributes. For some background see issue #6114. Features/properties of this implementation: - Only supported on littlefs2 (not littlefs1). - Uses littlefs2's general file attributes to store the timestamp. - The timestamp is 64-bits and stores nanoseconds since 1970/1/1 (if the range to the year 2554 is not enough then additional bits can be added to this timestamp by adding another file attribute). - mtime is enabled by default but can be disabled in the constructor, eg: uos.mount(uos.VfsLfs2(bdev, mtime=False), '/flash') - It's fully backwards compatible, existing littlefs2 filesystems will work without reformatting and timestamps will be added transparently to existing files (once they are opened for writing). - Files without timestamps will open correctly, and stat will just return 0 for their timestamp. - mtime can be disabled or enabled each mount time and timestamps will only be updated if mtime is enabled (otherwise they will be untouched). Signed-off-by: Damien George <damien@micropython.org>
75 lines
1.9 KiB
Plaintext
75 lines
1.9 KiB
Plaintext
test <class 'VfsLfs1'>
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(1024, 1024, 30, 26, 26, 0, 0, 0, 0, 255)
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(1024, 1024, 30, 25, 25, 0, 0, 0, 0, 255)
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[('test', 32768, 0, 8)]
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[('test', 32768, 0, 8)]
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[(b'test', 32768, 0, 8)]
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[('test', 32768, 0, 8), ('testdir', 16384, 0, 0)]
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[]
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[('test', 32768, 0, 8)]
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(32768, 0, 0, 0, 0, 0) 8 <class 'int'> <class 'int'> <class 'int'>
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(16384, 0, 0, 0, 0, 0) -1 <class 'int'> <class 'int'> <class 'int'>
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littlefs
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data length: 4096
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write 0
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write 1
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write 2
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write 3
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(1024, 1024, 30, 6, 6, 0, 0, 0, 0, 255)
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[('test', 32768, 0, 8), ('testbig2', 32768, 0, 16384), ('testdir', 16384, 0, 0)]
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[('testbig2', 32768, 0, 16384)]
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[('test', 32768, 0, 8), ('testbig2', 32768, 0, 16384), ('testdir', 16384, 0, 0)]
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[('test', 32768, 0, 8), ('testdir', 16384, 0, 0)]
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/
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/testdir
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(32768, 0, 0, 0, 0, 0) 0 <class 'int'> <class 'int'> <class 'int'>
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(32768, 0, 0, 0, 0, 0) 0 <class 'int'> <class 'int'> <class 'int'>
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/
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/testdir
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/
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/testdir/subdir
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/
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/testdir2
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/testdir
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/
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/testdir
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/testdir/subdir
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/
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test <class 'VfsLfs2'>
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(1024, 1024, 30, 28, 28, 0, 0, 0, 0, 255)
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(1024, 1024, 30, 28, 28, 0, 0, 0, 0, 255)
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[('test', 32768, 0, 8)]
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[('test', 32768, 0, 8)]
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[(b'test', 32768, 0, 8)]
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[('testdir', 16384, 0, 0), ('test', 32768, 0, 8)]
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[]
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[('test', 32768, 0, 8)]
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(32768, 0, 0, 0, 0, 0) 8 <class 'int'> <class 'int'> <class 'int'>
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(16384, 0, 0, 0, 0, 0) -1 <class 'int'> <class 'int'> <class 'int'>
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littlefs
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data length: 4096
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write 0
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write 1
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write 2
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write 3
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(1024, 1024, 30, 7, 7, 0, 0, 0, 0, 255)
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[('test', 32768, 0, 8), ('testbig2', 32768, 0, 16384), ('testdir', 16384, 0, 0)]
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[('testbig2', 32768, 0, 16384)]
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[('test', 32768, 0, 8), ('testbig2', 32768, 0, 16384), ('testdir', 16384, 0, 0)]
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[('test', 32768, 0, 8), ('testdir', 16384, 0, 0)]
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/
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/testdir
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(32768, 0, 0, 0, 0, 0) 0 <class 'int'> <class 'int'> <class 'int'>
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(32768, 0, 0, 0, 0, 0) 0 <class 'int'> <class 'int'> <class 'int'>
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/
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/testdir
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/
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/testdir/subdir
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/
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/testdir2
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/testdir
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/
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/testdir
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/testdir/subdir
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/
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