Adjust 'git-predicate' to use data structures that perform better when used
with git repositories with a large number of files.
Previously when matching either a regular file or directory, 'git-predicate'
would search a list with a length equal to the number of files in the
repository. As a search operation happens for roughly every file in the
repository, this meant that the time taken to use 'git-predicate' to traverse
all the files in a repository was roughly exponential with respect to the
number of files in the repository.
Now, for matching regular files or symlinks, 'git-predicate' uses a vhash
using the inode value as the key. This should perform roughly in constant
amount of time, instead of linear with respect to the number of files in the
repository.
For matching directories, 'git-predicate' now uses a tree structure stored in
association lists. To check if a directory is in the tree, the tree is
traversed from the root. The time complexity of this depends on the shape of
the tree, but it should be an improvement on searching through the list of all
files.
* guix/git-download.scm (files->directory-tree, directory-in-tree?): New
procedures.
(git-predicate): Compute DIRECTORY-TREE. Turn INODES into a vhash.
Adjust body of lambda accordingly.
Co-authored-by: Ludovic Courtès <ludo@gnu.org>
The '%slots' list could grow indefinitely; in practice though,
guix-daemon is likely to restart 'guix offload' often enough.
* guix/scripts/offload.scm (%slots): Remove.
(choose-build-machine): Don't 'set!' %SLOTS. Return the acquired slot
as a second value.
(process-request): Adjust accordingly. Release the returned slot after
'transfer-and-offload'.
This fixes a memory leak that can be seen by running:
(map (lambda _ (machine-load m)) (iota 1000))
* guix/scripts/offload.scm (machine-load): Add call to 'disconnect!'.
Suggested by Mark H Weaver <mhw@netris.org>.
* guix/scripts/publish.scm (nar-expiration-time): New procedure.
(render-narinfo/cached): Use it as the #:entry-expiration passed to
'maybe-remove-expired-cache-entries'.
Previously this operation was linear in the number of requests and
involved costly calls to 'string-contains'.
* guix/scripts/substitute.scm (fetch-narinfos)[hash-part->path]: New
procedure.
[handle-narinfo-response]: Use it for caching when CODE is not 200.
Reported by Ricardo Wurmus.
* guix/gexp.scm (local-file): Define using 'syntax-case' instead of
'syntax-rules'. Explicitly handle the zero-argument case and the
use-as-an-identifier case.
Fixes <https://bugs.gnu.org/25762>.
Reported by Ricardo Wurmus <rekado@elephly.net>.
* guix/scripts/package.scm (canonicalize-profile): Trim trailing slashes
from PROFILE.
Previously, (gexp-native-inputs #~#$@(list #~#+foo)) would return '().
This is a followup to 5b14a7902c.
* guix/gexp.scm (gexp-inputs)[add-reference-inputs]: In the list case,
remove 'if' around 'fold-right'. In 'map' lambda, always inherit N?.
* tests/gexp.scm ("gexp list splicing + ungexp-splicing"): New test.
Prior to this change, half of the cached narinfos would expire
immediately since they contained the number of nanoseconds instead of
the number of seconds as their date.
* guix/scripts/substitute.scm (time-monotonic) <guile-2.2>: Define, as a
workaround.
Before this change '--substitute-urls' would be ignored.
* guix/scripts/environment.scm (build-environment): Remove redundant
call to 'set-build-options-from-command-line*'.
(guix-environment): Move 'set-build-options-from-command-line' right
after 'with-store'.
* guix/build/syscalls.scm (network-interface-running?): New variable.
Export it.
* tests/syscalls.scm: Add test.
Co-authored-by: John Darrington <jmd@gnu.org>
Reported by rennes@openmailbox.org.
* guix/build/syscalls.scm (file-type->symbol): New procedure.
(%struct-dirent-header): Rename to...
(%struct-dirent-header/linux): ... this. Rename introduced bindings as
well.
(%struct-dirent-header/hurd): New C struct.
(define-generic-identifier): New macro.
(read-dirent-header, %struct-dirent-header, sizeof-dirent-header):
Define in terms of 'define-generic-identifier'.
This allows us to use texmf.cnf instead of having to set all required
environment variables manually.
* guix/build/texlive-build-system.scm (configure): New procedure.
(build): Simplify.
(%standard-phases): Add configure phase.
* guix/build-system/texlive.scm (texlive-build): Include (guix build union) in
modules.
(%texlive-build-system-modules): Likewise.
Reported by Christopher Baines <mail@cbaines.net>
and Alex Kost <alezost@gmail.com>
at <https://lists.gnu.org/archive/html/guix-devel/2017-06/msg00290.html>.
* guix/discovery.scm (scheme-files): When ENTRY is a symlink that
doesn't end in '.scm', call 'stat' and recurse if it points to a
directory.
* tests/discovery.scm ("scheme-modules recurses in symlinks to
directories"): New test.
Failing to do that, "%p" would be "0" when using "ProxyCommand"
in ~/.ssh/config.
* guix/scripts/copy.scm (send-to-remote-host): Default to port 22.
(retrieve-from-remote-host): Likewise.
This will pull the latest 'desktop-file-utils' package into the profile
closure, as the 'xdg-mime-database' hook already does.
* guix/profiles.scm (xdg-desktop-database): Run the hook when 'glib' is
referenced.
* guix/scripts/system.scm (process-action): Pass file-system-type to ...
(perform-action): ... here. Add new keyword argument. Pass new value to ...
(system-derivation-for-action): ... here. Add new keyword argument.
Pass new value to system-disk-image.
* doc/guix.texi (disk-image): Document new option.
Until now the cache was always empty because 'for-each' was passed ITEMS
as its second argument, and ITEMS was the empty list at that point.
* guix/store.scm (references/substitutes): Add 'requested' variable.
Use it as second argument of 'for-each' in base case.
* gnu/build/vm.scm (estimated-partition-size): New procedure.
* gnu/system/vm.scm (expression->derivation-in-linux-vm):
Change #:disk-image-size default to 'guess.
[builder]: When DISK-IMAGE-SIZE is 'guess, use
'estimated-partition-size' and compute and estimate of the image size.
(qemu-image): Likewise.
* guix/build/store-copy.scm (file-size, closure-size): New procedures.
* guix/scripts/system.scm (%default-options): Change 'image-size' to
'guess.
* doc/guix.texi (Building the Installation Image): Remove '--image-size'
flag from example.
(Invoking guix system): Document the image size estimate.
Fixes <http://bugs.gnu.org/27262>.
Reported by Mark H Weaver <mhw@netris.org>.
* guix/scripts/package.scm (transaction-upgrade-entry): Check if ENTRY
matches 'manifest-transaction-removal-candidate?' and return TRANSACTION
if it does.
(process-actions): Move 'options->removable' from step 2 to step 1.
* guix/profiles.scm (manifest-transaction-removal-candidate?): New
procedure.
* tests/profiles.scm ("manifest-transaction-removal-candidate?"): New
test.
Marius Bakke