# This is a "service unit file" for the systemd init system to perform a
# one-shot 'guix gc' operation.  It is meant to be triggered by a timer.
# Drop it in /etc/systemd/system or similar together with 'guix-gc.timer'
# to set it up.

[Unit]
Description=Discard unused Guix store items

[Service]
Type=oneshot
# Customize the 'guix gc' arguments to fit your needs.
ExecStart=@localstatedir@/guix/profiles/per-user/root/current-guix/bin/guix gc -d 1m -F 10G
PrivateDevices=yes
PrivateNetwork=yes
PrivateUsers=no
ProtectKernelTunables=yes
ProtectKernelModules=yes
ProtectControlGroups=yes
MemoryDenyWriteExecute=yes
SystemCallFilter=@default @file-system @basic-io @system-service
alue='c88a870e9c13c54adafc69855df2d00ed200782f'/><select name='h' onchange='this.form.submit();'>
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<div class='path'>path: <a href='/guix/log/?id=c88a870e9c13c54adafc69855df2d00ed200782f'>root</a>/<a href='/guix/log/tests?id=c88a870e9c13c54adafc69855df2d00ed200782f'>tests</a>/<a href='/guix/log/tests/store-deduplication.scm?id=c88a870e9c13c54adafc69855df2d00ed200782f'>store-deduplication.scm</a></div><div class='content'><table class='list nowrap'><tr class='nohover'><th class='left'>Age</th><th class='left'>Commit message (<a href='/guix/log/tests/store-deduplication.scm?id=c88a870e9c13c54adafc69855df2d00ed200782f&amp;showmsg=1'>Expand</a>)</th><th class='left'>Author</th></tr>
<tr><td><span title='2020-12-15 17:32:12 +0100'>2020-12-15</span></td><td><a href='/guix/commit/tests/store-deduplication.scm?id=7530e491b517497b7b8166b5ccecdc3d4cdb468d'>deduplicate: Create the '.links' directory lazily.</a><span class='msg-avail'>...<span class='msg-tooltip'>This avoids repeated (mkdir-p "/gnu/store/.links") calls when
deduplicating lots of files.

* guix/store/deduplication.scm (deduplicate): Remove initial call to
'mkdir-p'.  Add ENOENT case in 'link' exception handler.  Reindent.
* tests/store-deduplication.scm ("deduplicate, ENOSPC"): Check
for (&lt;= links 4) to account for the initial 'link' call.
</span></span></td><td>Ludovic Courtès</td></tr>
<tr><td><span title='2020-12-15 17:32:10 +0100'>2020-12-15</span></td><td><a href='/guix/commit/tests/store-deduplication.scm?id=6a060ff27ff68384d7c90076baa36c349fff689d'>store-copy: 'populate-store' can optionally deduplicate files.</a><span class='msg-avail'>...<span class='msg-tooltip'>Until now deduplication was performed as an additional pass after
copying files, which involve re-traversing all the files that had just
been copied.

* guix/store/deduplication.scm (copy-file/deduplicate): New procedure.
* tests/store-deduplication.scm ("copy-file/deduplicate"): New test.
* guix/build/store-copy.scm (populate-store): Add #:deduplicate?
parameter and honor it.
* tests/gexp.scm ("gexp-&gt;derivation, store copy"): Pass #:deduplicate? #f
to 'populate-store'.
* gnu/build/image.scm (initialize-root-partition): Pass #:deduplicate?
to 'populate-store'.  Pass #:deduplicate? #f to 'register-closure'.
* gnu/build/vm.scm (root-partition-initializer): Likewise.
* gnu/build/install.scm (populate-single-profile-directory): Pass
 #:deduplicate? #f to 'populate-store'.
* gnu/build/linux-initrd.scm (build-initrd): Likewise.
* guix/scripts/pack.scm (self-contained-tarball)[import-module?]: New
procedure.
[build]: Pass it as an argument to 'source-module-closure'.
* guix/scripts/pack.scm (squashfs-image)[build]: Wrap in
'with-extensions'.
* gnu/system/linux-initrd.scm (expression-&gt;initrd)[import-module?]: New
procedure.
[builder]: Pass it to 'source-module-closure'.
* gnu/system/install.scm (cow-store-service-type)[import-module?]: New
procedure.  Pass it to 'source-module-closure'.
</span></span></td><td>Ludovic Courtès</td></tr>