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>