Arch Linux's Pacman 5.2 Released - Drops Support For Delta Packages, Adds Zstd Support

[elatllat]

zsync and Arch signed packages should be used.

[skeevy420]

Good, I'll be able to finally stop running pacman from git just for zstd.

P.S.

COMPRESSZST=(zstd -c -z -q -T0 --adapt=min=7,max=19 -)

You're welcome

[ypnos]

Why not fix the security hole (if it has chance) instead of dropping the feature then? That's like if I were to demolish my house if it was dirty.

This feature was not really used by anybody, and/as the implementation did not bring the expected benefits. The security hole was just the nail in the coffin. Otherwise the feature would've just bit-rotted lying in the grass.

[R41N3R]

zsync and Arch signed packages should be used.

casync...

[elatllat]

casync...

AFAIK casync is the wrong tool for the job requiring an extra protocol (vs http) for 0 benefit to pacman (vs zsync).
Ubuntu still uses zsync because casync is only optimized for local docker operations.
Ubuntu (and opensuse) also offer aria2 (metalink/meta4) which has some nice mirror handling, and verification features.

[Anvil]

Imo bad news. For example Delta RPM still is used in Fedora and works like charms

problem with DeltaRPMS it take longer to rebuild to make a deltaRPM + more Bandwidth . plus its just as quicker to download the whole thing like Redhat Linux used to be.

[polarathene]

Good, I'll be able to finally stop running pacman from git just for zstd.

P.S.

COMPRESSZST=(zstd -c -z -q -T0 --adapt=min=7,max=19 -)

You're welcome

I'm lazy, care to breakdown the flags and values so I don't have to look them up?

What's the env var that you're assigning it to used by? Pacman 5.2 zstd support?

[Ifr2]

To me,

Best distro for developers - Fedora
Best distro for tinkerers - Arch
Best distro for servers - CentOS/RHEL
Best distro for iot, random things etc - Debian
Best distro for desktop - I don't think there really is one.

It might be b/c we're only two tech guys here, but we run an Arch server here in my company and have had no problems in the 4 years the server has been running.
On the other hand, I've never ended up feeling comfortable using Fedora, and I've really tried

[ypnos]

I'm lazy, care to breakdown the flags and values so I don't have to look them up?

What's the env var that you're assigning it to used by? Pacman 5.2 zstd support?

This is a config line in makepkg.conf, effective when you build your own packages (including AUR helpers). These options are compression parameters. -T0 enables multithreaded compression. For the rest see the manpage of zstd.

[skeevy420]

I'm lazy, care to breakdown the flags and values so I don't have to look them up?

What's the env var that you're assigning it to used by? Pacman 5.2 zstd support?

It's the makepkg.conf line for zstd enabling multi-threading & adaptive compression between levels 7 and 19. The rest are just the standard compression/suppression settings makepkg uses. It's fast with decent results.