This should be a significant disk space saving for most NixOS
installations. This method is a bit more complicated than doing it in
the postInstall for the firmware derivations, but this way it's
automatic, so each firmware package doesn't have to separately
implement its compression.
Currently, only xz compression is supported, but it's likely that
future versions of Linux will additionally support zstd, so I've
written the code in such a way that it would be very easy to implement
zstd compression for those kernels when they arrive, falling back to
xz for older (current) kernels.
I chose the highest possible level of compression (xz -9) because even
at this level, decompression time is negligible. Here's how long it took
to decompress every firmware file my laptop uses:
i915/kbl_dmc_ver1_04.bin 2ms
regulatory.db 4ms
regulatory.db.p7s 3ms
iwlwifi-7265D-29.ucode 62ms
9d71-GOOGLE-EVEMAX-0-tplg.bin 22ms
intel/dsp_fw_kbl.bin 65ms
dsp_lib_dsm_core_spt_release.bin 6ms
intel/ibt-hw-37.8.10-fw-22.50.19.14.f.bseq 7ms
And since booting NixOS is a parallel process, it's unlikely (but
difficult to measure) that the time to user interaction was held up at
all by most of these.
Fixes (partially?) #148197
the `lhs2tex` tool is a “commonly” used tool in academia to typeset
certain papers, and it would be prudent to have it available outside the
`haskellPackages` namespace, and also made available on the caches.
Also added to release-haskell.nix, and made myself the maintainer.
Build documentation of nginx (which is maintained separately from webserver
itself) and make it available both as "nginx-doc" attribute and as "doc" output
of "nginx" derivation.
This is a legacy of when a "stable" version of hydra existed, and this
probably won't be coming back.
This also removes some obsolete bits which have no effect on the
result of evaluation.
Unlike the original approach in #157072, we're moving the common
expression to "unstable.nix" instead. This allow putting everything in
one commit, satisfies git's rename detection, and remains bisectable.
Co-Authored-By: Bernardo Meurer <bernardo@meurer.org>
Co-Authored-By: Linus Heckemann <git@sphalerite.org>
Armeen Mahdian