Abstraction to manage filesystems of devices and network scenarios.

Attributes:

• fs (FS): An object referencing a filesystem. Can be both real OS or a memory fs.

__init__()

copy_directory_from_path(src_path: str, dst_path: str) → None

Copy a directory from a src_path in the host filesystem into a dst_path in this fs.

Args:

• src_path (str): The source path of the directory to copy.
• dst_path (str): The destination path where to copy the directory.

Returns: None

Raises:

• InvocationError: If the fs is None.

create_file_from_list(lines: List[str], dst_path: str) → None

Create a file in the fs object from a list of strings.

Args:

• lines (List[str]): The list of strings representing the content of the file to create.
• dst_path (str): The absolute path of the fs where create the file.

Returns: None

Raises:

• InvocationError: If the fs is None.
• fs.errors.ResourceNotFound: If the path is not found in the fs.

create_file_from_path(src_path: str, dst_path: str) → None

Create a file in the fs object from an existing file on the host filesystem.

Args:

• src_path (str): The path of the file on the host filesystem to copy in the fs object.
• dst_path (str): The absolute path of the fs where create the file.

Returns: None

Raises:

• InvocationError: If the fs is None.
• fs.errors.ResourceNotFound: If the path is not found in the fs.

create_file_from_stream(stream: Union[BinaryIO, TextIO], dst_path: str) → None

Create a file in the fs object from a stream.

Args:

• stream (Union[BinaryIO, TextIO]): The stream representing the content of the file to create.
• dst_path (str): The absolute path of the fs where create the file.

Returns: None

Raises:

• InvocationError: If the fs is None.
• UnsupportedOperation: If the stream is opened without read permissions.
• fs.errors.ResourceNotFound: If the path is not found in the fs.

create_file_from_string(content: str, dst_path: str) → None

Create a file in the fs object from a string.

Args:

• content (str): The string representing the content of the file to create.
• dst_path (str): The absolute path of the fs where create the file.

Returns: None

Raises:

• InvocationError: If the fs is None.
• fs.errors.ResourceNotFound: If the path is not found in the fs.

delete_line(
    file_path: str,
    line_to_delete: str,
    first_occurrence: bool = False
) → int

Delete a specified line in a file.

Args:

• file_path (str): The path of the file to delete the line.
• line_to_delete (str): A string or a regex representing the line to delete.
• first_occurrence (bool): Deletes only first occurrence. Default is False.

Returns:

• int: Number of times the line has been deleted.

Raises:

• InvocationError: If the fs is None.
• fs.errors.FileExpected: If the path is not a file.
• fs.errors.ResourceNotFound: If the path does not exist.

fs_path() → Optional[str]

Return the path of the filesystem, if fs has a path on the host. Else, return None

Returns:

• Optional (str): The path of the filesystem in the fs.

fs_type() → Optional[str]

Return the name of the class of the fs object, if present. Else, return None.

Returns:

• Optional (str): The name of the class of the fs object.

update_file_from_list(lines: List[str], dst_path: str) → None

Update a file in the fs object from a list of strings.

Args:

• lines (List[str]): The list of strings representing the content for updating the file.
• dst_path (str): The absolute path on the fs of the file to upload.

Returns: None

Raises:

• InvocationError: If the fs is None.
• fs.errors.ResourceNotFound: If the path is not found in the fs.

update_file_from_string(content: str, dst_path: str) → None

Update a file in the fs object from a string.

Args:

• content (str): The string representing the content for updating the file.
• dst_path (str): The absolute path on the fs of the file to update.

Returns: None

Raises:

• InvocationError: If the fs is None.
• fs.errors.ResourceNotFound: If the path is not found in the fs.

write_line_after(
    file_path: str,
    line_to_add: str,
    searched_line: str,
    first_occurrence: bool = False
) → int

Write a new line after a specific line in a file.

Args:

• file_path (str): The path of the file to add the new line.
• line_to_add (str): The new line to add after the searched line.
• searched_line (str): A string or a regex representing the searched line.
• first_occurrence (bool): Inserts line only after the first occurrence. Default is False.

Returns:

• int: Number of times the line has been added.

Raises:

• InvocationError: If the fs is None.
• fs.errors.FileExpected: If the path is not a file.
• fs.errors.ResourceNotFound: If the path does not exist.

write_line_before(
    file_path: str,
    line_to_add: str,
    searched_line: str,
    first_occurrence: bool = False
) → int

Write a new line before a specific line in a file.

Args:

• file_path (str): The path of the file to add the new line.
• line_to_add (str): The new line to add before the searched line.
• searched_line (str): A string or a regex representing the searched line.
• first_occurrence (bool): Inserts line only before the first occurrence. Default is False.

Returns:

• int: Number of times the line has been added.

Raises:

• InvocationError: If the fs is None.
• fs.errors.FileExpected: If the path is not a file.
• fs.errors.ResourceNotFound: If the path does not exist.

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