Previously we would call 'machine-load' once per machine, which was very
costly when there were many machines. Now we arrange to call it only
once on average (when all the machines have the same 'speed' value).
* guix/scripts/offload.scm (random-seed, shuffle): New procedures.
(choose-build-machine)[machines+slots+loads]: Rename to...
[machines+slots]: ... this. Remove load from the tuples therein.
[undecorate]: Adjust accordingly.
[machine-less-loaded-or-faster?]: Remove.
[machine-faster?]: New procedure.
Sort MACHINES+SLOTS according to 'machine-faster?'. Call
'machine-load?' as the last thing.
This should allow more operations such as changing the system date and
time via the Control Center (reported at
<https://lists.gnu.org/archive/html/help-guix/2016-09/msg00059.html>),
performing "file operations" via gvfs, and interacting with processes
using the System Monitor.
* gnu/services/desktop.scm (gnome-polkit-settings): New procedure.
(gnome-desktop-service-type): Use it in POLKIT-SERVICE-TYPE extension.
Fixes <https://bugs.gnu.org/28784>.
This mostly reverts 81a0f1cdf1, which
introduced a regression: revealed ports are *never* GC'd (contrary to
what Guile's manual suggests).
In addition to the revert, 'close-procedure' now explicitly swallows
EBADF errors when 'close-port' is called.
* guix/zlib.scm (close-procedure): New procedure.
(make-gzip-input-port)[gzfile]: Use 'fileno' instead of 'port->fdes'.
Use 'close-procedure' instead of 'gzclose'.
(make-gzip-output-port): Likewise.
* tests/zlib.scm ("compression/decompression pipe"): Use 'port-closed?'
to determine whether PARENT has been closed.
* gnu/system/examples/lightweight-desktop.tmpl <file-systems>: Add a
UUID for the /boot/efi partition.
* doc/guix.texi (Using the Configuration System): Mention it.
Reported by Roel Janssen <roel@gnu.org>
at <https://lists.gnu.org/archive/html/help-guix/2017-09/msg00094.html>.
* gnu/system/file-systems.scm (file-system->spec): When DEVICE is a
UUID, serialize it in a way that preserves its type.
(spec->file-system): Adjust accordingly.
* gnu/build/file-systems.scm (canonicalize-device-spec): Add case for
when SPEC is 'uuid?'.
* gnu/build/file-systems.scm (mount-file-system): Rename 'spec' to 'fs'
and assume it's a <file-system>.
* gnu/build/linux-boot.scm (boot-system): Assume MOUNTS is a list of
<file-system> and adjust accordingly.
* gnu/build/linux-container.scm (mount-file-systems): Remove
'file-system->spec' call.
* gnu/services/base.scm (file-system-shepherd-service): Add
'spec->file-system' call. Add (gnu system file-systems) to 'modules'.
* gnu/system/linux-initrd.scm (raw-initrd): Use (gnu system
file-systems). Add 'spec->file-system' call for #:mounts.
This prevents libstore/build.cc from executing nix/scripts/offload, which is
always created by config.status, when offload support is not enabled.
* build-aux/pre-inst-env.in: Export 'NIX_BUILD_HOOK' only when
configured; unset it otherwise.
Fixes a regression introduced in
42abb842f6.
* gnu/packages/games.scm: Remove unneeded (guix build utils) import,
which led to a name clash on 'which'.
* guix/import/cpan.scm: Remove dependency on (gnu packages perl).
(perl-package): New procedure.
(%corelist, core-module?): Use it instead of referring to 'perl'.
Suggested by Ricardo Wurmus.
Works around <https://bugs.gnu.org/28295>.
* guix/ui.scm (report-load-error): Add case for 'read-error'.
* tests/guix-system.sh: Test missing-closing-paren errors.
