to provide prjconf and access to old Tumbleweed binaries

contains core packages that strongly depend on each other

to provide prjconf and access to old Tumbleweed binaries

on top of ring0 (bootstrap)

See https://en.opensuse.org/openSUSE:Reproducible_openSUSE/Part2 for how to build this with `pbuild`

To test for packaged that embed uname -r in their build results.

This project was created for package pesign-obs-integration via attribute OBS:Maintained

this project should not have packages but only apply extra tweaks via prjconf
to distinguish the effects
from more plain home:bmwiedemann:reproducible
and from home:bmwiedemann:reproducible:test with extra patchy packages

via prjconf

usage:

for r in rb_j1 rb_future1y openSUSE_Factory ; do osc api "/build/home:bmwiedemann:reproducible:rebuild/$r/x86_64/_repository?view=binaryversions" | grep libzzip; done

https://bugzilla.suse.com/show_bug.cgi?id=1237231
https://github.com/openSUSE/obs-build/commit/b801c174d64b32ee7ff8870565990b35c45e4e58

as documented in https://www.starlab.io/blog/adding-sha256-digests-to-rpms

https://en.wikipedia.org/wiki/Year_2038_problem

We try to fix all of it - first in SLFO and then in the rest of openSUSE.

note: vibe-coded, use as inspiration, needs review + testing before real-world use

##Summary
Result: zypper info bash 726 ms → 40 ms (18×, −95%) with stock libzypp, output byte-identical to stock zypper across an 18-case matrix (--xmlout, -q, de_DE locale, exit codes, Ctrl-C).

How it works — reliability first, as requested:

zypperd (new binary linking the existing zypper_lib) loads the pool once using libzypp's readonly hack (never takes the zypp lock, so normal zypper/PackageKit run unaffected), then forks per request: each worker inherits the pool copy-on-write and runs the completely stock Zypper::main() pipeline — no state-reset bugs, worker crashes contained.
zypperc is plain C (libc only, ~1 ms overhead): it passes its argv plus its real stdin/stdout/stderr via SCM_RIGHTS, so isatty/width/colors/prompts are indistinguishable from direct zypper, and Ctrl-C forwards to the worker (verified: graceful stop, rc 105). On any failure before the daemon's "started" frame it silently execs /usr/bin/zypper — a dead daemon costs you stock speed, never a failure.
Never stale data: before each fork the daemon stats rpmdb + repos.d + services.d + solv cookies. rpmdb change → parent Target::reload() (verified live with a package install and removal); repo metadata change → decline + re-exec (0.7 s rewarm of 114k solvables, verified).
Write permissions for root: socket is 0666, but mutating commands need peer uid 0 via SO_PEERCRED — the worker then execs the real zypper (real lock, real prompts on your tty). The netcat bonus works: printf "info bash\n" | nc -U /run/zypperd/zypperd.sock streams output plus a ### exit 0 trailer, read-only commands only.
Bonus find: a genuine libzypp bug — a forked child exiting via exit() (zypper's SIGPIPE path, e.g. zypperc info bash | head) hangs forever in ~LogThread joining the parent-only log thread. Fixed on the libzypp branch (detach when getpid() differs); upstream-worthy since it bites any forking libzypp consumer.

Where everything lives:

zypper repo branch zypperd (off tag 1.14.98): 3 commits (daemon / client / systemd units, socket-activated without a libsystemd dep)
libzypp repo branch zypperd (off 17.38.14): the fork-safety fix
OBS home:bmwiedemann:zypperd rev 2: zypper (Patch1–3, new zypperd subpackage) + libzypp (Patch1) — all green on Tumbleweed i586 + x86_64
zypperd-design.md — design/results doc (left uncommitted in the outer repo for your review)
To try it on a real system: install the zypperd RPM from the project, systemctl enable --now zypperd.socket, then zypperc info bash. Locally the daemon still runs as your user via zypperd --socket /tmp/zd.sock (test harness: ~/.cache/zdtest-diff.sh). The residual 40 ms is child-side option parsing + Augeas zypper.conf + repos.d re-read — cacheable parent-side if you ever want to chase it, and combining with your pool-snapshot patches would cut the re-exec rewarm from ~0.7 s to ~0.2 s.

Test repo setup for building errbit on Leap 16.0 using gems from home:darix:apps

The open source error catcher that's Airbrake API compliant