1.1.0

Added

• (mkfs) #30: Add support for different FAT12 cluster sizes for filesystems up to 256MB by @zurcher / @Microsoft
• #36: Add Python 3.12 support by @zurcher / @Microsoft

Fixed

• #34 (DosDateTime) #35: Gracefully handle invalid file timestamps by @beckerben
• #31 (FATDirectoryEntry): Handle file sizes larger than 4GB gracefully by responding with PyFATException and errno=E2BIG
• Properly lock I/O on write operations to avoid issues on concurrent writes

Changed

• Deprecated FATDirectoryEntry.{g,s}et_size() method in favor of FATDirectoryEntry.filesize property (will be removed in PyFatFS 2.0)
• Only warn of broken long filename entries, do not fail when encountering them
• Convert given PyFilesystem2 opener string arguments to correct type (e.g., string to int)
• Discard unknown PyFilesystem2 opener arguments, do not pass through to underlying PyFatFS constructor
• Lazy load directory entries for performance and regex2fat compatibility
  • Introduce lazy_load parameter to allow restoring previous behavior
  • #32: Fix tree iteration on non-lazy load by @zurcher / @Microsoft
  • #33: Fix missing parent directory entry link on lazy-load by @zurcher / @Microsoft
  • #33: Do not re-populate directory structure from disk on pending entry change by @zurcher / @Microsoft

1.0.5

Fixed

• Issue #26: Fix deserialization of date and time values ({a,c,m}time)

1.0.4

Fixed

• Issue #24: Do not reorder directory entries when adding/removing entries in a directory
• Issue #25: Properly truncate files when configured for truncating (PyFilesystem2/FatIO)
• Always retain last cluster when truncating a file to 0 bytes
• Issue #27: Remove outdated Not yet properly implemented hint from setinfo docstring

1.0.3

Fixed

• Issue #22: Properly combine date and time DosDateTime objects when querying ctime/mtime

1.0.2

Fixed

• PR #23: Do not try to write FAT if filesystem has been opened read-only by @abrasive

1.0.1

Fixed

• (mkfs) Handle offset correct in case of multiple partitions.
• (mkfs) Issue #18 Add volume label dir entry
• (mkfs) Fix default size detection

1.0.0

Added

• Static new method for FATDirectoryEntry
• PR #17 <https://github.com/nathanhi/pyfatfs/pull/17>: mkfs method by @wackinger <https://github.com/wackinger> / @Draegerwerk <https://github.com/Draegerwerk>_
  • FATHeader class replaced by BootSectorHeader
  • Initial support of FSInfo for mkfs
• Expose PyFat.set_fp function to allow using BytesIO / in-memory files. Provide PyFatBytesIOFS class for PyFilesystem2

Fixed

• Remove duplicated code
• Properly handle non-ASCII short file names / 8DOT3
• Mark dir/file entries as empty on deletion
• Do not allow creating files when a folder with the same name already exists
• Do not allow creating folders when a file with the same name already exists

Changed

• In order to fix non-ASCII short file names, FATDirectoryEntry.name
  is now of EightDotThree type instead of bytes

Removed

• Legacy byte_repr() function, __bytes__() is to be used instead
  as a drop-in replacement to serialize FAT and dentry data for writing to
  disk

0.3.1

Fixed

• Fix performance regression on FAT16/32 when serializing a FAT to disk via __bytes__
• Improve performance by only parsing fat size once on open() instead of multiple times

0.3.0

Added

• Support for dirty bit, detects unclean unmounts of a filesystem, sets dirty bit on mount and clears it on unmount/close

Deprecated
Implement __bytes__() instead of byte_repr(), it will be removed in 1.0

0.2.0

Added

• readinto method to directly read into a bytearray
• Write support for FAT12

Fixed

• Lower required minimum version of PyFilesystem2 to 2.4.0
• Do not fail with RemoveRootError on removetree("/")
• openbin now sets the b mode on file open
• Support non-standard Linux formatted filesystems (i.e. FAT32 with less than 65525 clusters)
  • Emits a warning when such a filesystem is encountered
• Remove check for boot signature version