RAHasher was being spawned for every hashable ROM regardless of file
type. When the source file is a zip/7z/tar and the RA platform needs
an on-disk disc image (PSX, PS2, PSP, Saturn, Dreamcast, Sega CD,
3DO, PC-FX, Neo Geo CD, TurboGrafx CD, Atari Jaguar CD, Wii), the
subprocess fails with "Unsupported console for buffer hash: {id}"
after paying full process-spawn overhead per ROM — a serious slowdown
when indexing large zipped collections (e.g. myrient PS2/PSP sets).
calculate_hash now short-circuits those combinations with a debug log
and no subprocess. Raw disc images (.iso, .chd, .cue/.bin) and
archives on cartridge platforms still go through RAHasher as before.
Also centralize COMPRESSED_FILE_EXTENSIONS in utils/filesystem.py so
roms_handler (is_compressed_file / hashing), rahasher (skip logic),
and feeds (PKGi passthrough) share one source of truth. The shared
set adds .rar, which is_compressed_file now recognizes too.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
When serving files using the `X-Accel-Redirect` header in nginx, the
header values must be URL-encoded. Otherwise, nginx will not be able
to serve the files if they contain special characters.
This commit adds a new `FileRedirectResponse` class to the `utils.nginx`
module, to simplify the creation of responses that serve files using the
`X-Accel-Redirect` header.
Fixes#1212, #1223.
`os.walk` is a generator that can iteratively navigate from the
specified path, top-bottom. However, most of the calls to `os.walk` in
the project cast the call to `list()`, which makes it traverse the path
and recursively find all nested directories.
This is commonly not needed, as we end up just using a `[0]` index to
only access the root path.
This change adds a few utils that simplifies listing files/directories,
and by default does it non-recursively. Performance gains shouldn't be
noticeable in systems with high-speed storage, but we can avoid the edge
cases of users having too many nested directories, by avoiding unneeded
I/O.
