I'll eventually want to support text and binary files in both locations,
so cache files might need access to this too.
Signed-off-by: Anna Schumaker <Anna@NoWheyCreamery.com>
This change means removing cache files is now supported. As a bonus,
we try to remove empty subdirectories to keep down the clutter.
Signed-off-by: Anna Schumaker <Anna@NoWheyCreamery.com>
This might also be useful for cache files to track their current state.
To help with accurate tracking, I take this opportunity to add a CLOSED
state that files default to.
Signed-off-by: Anna Schumaker <Anna@NoWheyCreamery.com>
I also introduce a "file_operations" struct that will be used in the
future to do slightly different things for cache and data files.
Signed-off-by: Anna Schumaker <Anna@NoWheyCreamery.com>
And rework the init functions at the same time to reflect that data
files can now be placed under a subdirectory.
Signed-off-by: Anna Schumaker <Anna@NoWheyCreamery.com>
I'm going to create a unified struct file that should be able to share
code between data and cache files. The first step is to push the old
structure to the side so it can still be used in other places.
Signed-off-by: Anna Schumaker <Anna@NoWheyCreamery.com>
This makes file versioning way easier, since every file will have the
same version. I'll still need to manage minimum-supported versions, but
that shouldn't be too difficult going forward.
Signed-off-by: Anna Schumaker <Anna@NoWheyCreamery.com>
This changes test output slightly, in that files are now placed under
subdirectories of $XDG_USER_DATA_DIR/ocarina-test/ instead of in this
directory directly. This should help avoid conflicting files, and lets
me use a single "rm" command to remove everything before testing.
Signed-off-by: Anna Schumaker <Anna@OcarinaProject.net>
I'm hitting this problem while developing 6.5, since file formats are
going to change. Let's handle this situation gracefully rather than
segfaulting.
This patch changes versioning problems into fatal errors to prevent us
from overwriting data already on disk.
Signed-off-by: Anna Schumaker <Anna@NoWheyCreamery.com>
I want to reuse as much file code as I can for cache files, but I need a
new struct since data and cache files track different properties.
Signed-off-by: Anna Schumaker <Anna@OcarinaProject.net>
I don't think it makes sense that callers of file_open() are expected to
check the file version after opening. This should be something handled
by the file code so we can print a consistent error message.
Implements issue #5: Better file versioning
Signed-off-by: Anna Schumaker <Anna@OcarinaProject.net>
And then rename the temporary file when closed. This protects users
data in case Ocarina gets killed.
Implements issue #31: Make file writes seem atomic
Signed-off-by: Anna Schumaker <Anna@OcarinaProject.net>
I eventually intend to remove the file_init() function, once everything
has been converted to C.
Signed-off-by: Anna Schumaker <Anna@OcarinaProject.net>
Anna Schumaker
Anna Schumaker