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fatfsgen.py: omit cluster allocation when the file is empty

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This commit is contained in:
Martin Gaňo
2022-09-29 14:54:23 +02:00
parent f33ac0a037
commit 7fb62d41d5
3 changed files with 39 additions and 24 deletions
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10
components/fatfs/fatfsgen.py
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@@ -78,7 +78,8 @@ class FATFS:
def create_file(self, name: str,
extension: str = '',
path_from_root: Optional[List[str]] = None,
object_timestamp_: datetime = FATFS_INCEPTION) -> None:
object_timestamp_: datetime = FATFS_INCEPTION,
is_empty: bool = False) -> None:
"""
Root directory recursively finds the parent directory of the new file, allocates cluster,
entry and appends a new file into the parent directory.
@@ -89,11 +90,13 @@ class FATFS:
:param extension: The extension of the file.
:param path_from_root: List of strings containing names of the ancestor directories in the given order.
:param object_timestamp_: is not None, this will be propagated to the file's entry
:param is_empty: True if there is no need to allocate any cluster, otherwise False
"""
self.root_directory.new_file(name=name,
extension=extension,
path_from_root=path_from_root,
object_timestamp_=object_timestamp_)
object_timestamp_=object_timestamp_,
is_empty=is_empty)
def create_directory(self, name: str,
path_from_root: Optional[List[str]] = None,
@@ -159,7 +162,8 @@ class FATFS:
self.create_file(name=file_name,
extension=extension,
path_from_root=split_path[1:-1] or None,
object_timestamp_=object_timestamp)
object_timestamp_=object_timestamp,
is_empty=len(content) == 0)
self.write_content(split_path[1:], content)
elif os.path.isdir(real_path):
if not is_dir: