decompressing individual .gz files in a directory (compression without tar envelope) about fuse-archive HOT 4 CLOSED

Clarification: The ultimate feature would be something like the venerable https://www.freshports.org/sysutils/fusefs-gunzip/ (which disappeared from the face of Earth).

from fuse-archive.

Where does the name in the mount point come from? It does not seem to be in the archive (or maybe gzip just does not output it?):

The gzip file format can optionally contain the original file name (look for "FNAME" in the https://datatracker.ietf.org/doc/html/rfc1952 gzip specification). If a .gz file has it, fuse-archive will use it. Otherwise libarchive will fall back to "data" as a default: https://github.com/libarchive/libarchive/blob/6d56dfd6ef13625561da83c605d2a12cb146088c/libarchive/archive_read_support_format_raw.c#L119

Maybe try gzip -l com.txt.gz with the --name or --no-name flags. Maybe it will show a difference.

First ls operation on the mount takes ages - time comparable to decompressing the whole archive, presumably because it looks for end of first gzip stream to see if another gzip stream might follow. Is this intentional? Would you be willing to add an option to treat gz files as one-item archives and thus make initial listing fast?

It is intentional to decompress the whole thing. Not to see if another gzip stream might follow, but to determine the decompressed size (which fuse-archive would need to show if we did a 'ls -l on the mount point).

Would you be interested in an option which uses the original file name without .gz suffix for names in the mount?

I'm not super-excited about adding that option. For your original use case, I'd probably use symlinks.

And finally, assuming answers above were mostly "yes", are you interested in more complete feature request description to mount directories and transparently decompress files in them? I could write it down if it is not waste of time.

Sorry, but the answers are mostly "no".

from fuse-archive.

Thank you for your time, it all makes sense. Have a great day!

from fuse-archive.

Hi @pspacek

Maybe You can use fuse-overlayfs, and so join several mounted dir at unique target dir.

I hope that I could helped You.

from fuse-archive.