In simple terms, two hard-linked files are just two different names for the same piece of physical space on the hard drive. However, while shortcuts are just plain files that point to a different file (and therefore require additional space), hard links work one level deeper, at the level of the filesystem itself.
This is possible thanks to an operating system feature called hard links.Ī hard link is conceptually similar to a shortcut in that it is a method that allows a user to have the same file available from multiple different places on their filesystem. On most systems, osu!(lazer) will be able to import data from the stable version of the game without having to create a second copy of the data on disk. Migration from osu!(stable) Via hard links
All inconveniences compared to stable that arise from this choice have been addressed by either allowing exports or adding new in-game management features, or will be addressed in due time by new features.įor now, the correct procedure to manually modify skins or beatmaps outside of the facilities available in-game is to export the item, update it, and then reimport it again with the desired changes. This allows for saving storage space by preventing duplicates of the same file from being persisted to disk, and prevents users (or other applications) from easily tampering with files that should not be tampered with. Mappings to these files are held inside a client database.įor example, a file with the SHA-256 hash of 1a47929b6056d34d25a95eeb2012395ceed66af6f40cc37c898a08482d6325d2 All files that are imported to lazer are stored under filenames that reflect their SHA-256 hashes. As such, there is no equivalent of the Songs and Skins folders. To avoid this, osu!(lazer) employs a more stringent method of file storage. Osu!(stable)'s storage structure, where data was directly accessible to users as standard files, resulted in a lot of teething issues due to having to explicitly handle unwanted modifications of key files. On desktop platforms, the file store can also be moved in its entirety to another location, using the Change folder location. Android/data/sh.ppy.osulazer/files/files (Android).
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