djsundog/circuitpython
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity
fe9ffff9c0
circuitpython/tests/extmod/vfs_lfs_mtime.py.exp

15 lines
112 B
Plaintext
Raw Normal View History

extmod/vfs_lfs: Add mtime support to littlefs files. 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>
2020-07-28 11:01:48 -04:00
test <class 'VfsLfs2'>
mtime=True
True True
True
True
True
tests/extmod: Add tests for verifying FAT and littlefs mtime values. Verifies mtime timestamps on files match the value returned by time.time(). Also update vfs_fat_ramdisk.py so it doesn't check FAT timestamp of the root, because that may change across runs/ports. Signed-off-by: Damien George <damien@micropython.org>
2020-08-31 01:01:10 -04:00
True
extmod/vfs_lfs: Add mtime support to littlefs files. 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>
2020-07-28 11:01:48 -04:00
mtime=False
True
True
True
mtime=True
True
True
Reference in New Issue Copy Permalink