# GNU Guix --- Functional package management for GNU
# Copyright © 2023 Antoine R. Dumont <antoine.romain.dumont@gmail.com>
# Copyright © 2023 Ludovic Courtès <ludo@gnu.org>
#
# This file is part of GNU Guix.
#
# GNU Guix is free software; you can redistribute it and/or modify it
# under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 3 of the License, or (at
# your option) any later version.
#
# GNU Guix is distributed in the hope that it will be useful, but
# WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with GNU Guix.  If not, see <http://www.gnu.org/licenses/>.

#
# Test the 'guix locate' command-line utility.
#

set -x

RUN_EXPENSIVE_TESTS="${RUN_EXPENSIVE_TESTS:-false}"

tmpdir="guix-index-$$"
# In the following tests, we use two different databases, one for each
# indexation method.
tmpdb_manifests="$tmpdir/manifests/db.sqlite"
tmpdb_store="$tmpdir/store/db.sqlite"
trap 'rm -rf "$tmpdir" "$tmpdb_store" "$tmpdb_manifests"' EXIT

guix locate --version

# Preparing db locations for both indexation methods.
mkdir -p "$(dirname "$tmpdb_manifests")" "$(dirname "$tmpdb_store")"

cmd_manifests="guix locate --database=$tmpdb_manifests --method=manifests"
cmd_store="guix locate --database=$tmpdb_store --method=store"

# Lookup without any db should fail.
guix locate --database="$tmpdb_manifests" guile && false
guix locate --database="$tmpdb_store" guile && false

# Lookup without anything in db should yield no results because the indexer
# didn't stumble upon any profile.
test -z "$(guix locate --database="$tmpdb_manifests" guile)"

# Install a package.
guix package --bootstrap --install guile-bootstrap \
     --profile="$tmpdir/profile"

# Look for 'guile'.
$cmd_manifests --update
$cmd_manifests guile | grep "$(guix build guile-bootstrap)/bin/guile"
$cmd_manifests boot-9.scm | grep ^guile-bootstrap

# Using a glob pattern.
$cmd_manifests -g '*.scm' | grep "^guile-bootstrap.*boot-9"

# Statistics.
$cmd_manifests --stats

if $RUN_EXPENSIVE_TESTS
then
    $cmd_store --update
    $cmd_store guile
    $cmd_store guile | grep "$(guix build guile-bootstrap)/bin/guile"
    $cmd_store boot-9.scm | grep ^guile-bootstrap
fi
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=80b0e796290cb2b263982f74d9192da6f6b8e335&amp;showmsg=1'>Expand</a>)</th><th class='left'>Author</th></tr>
<tr><td><span title='2021-11-16 14:34:28 +0100'>2021-11-16</span></td><td><a href='/guix/commit/tests/store-deduplication.scm?id=472a0e82a52a3d5d841e1dfad6b13e26082a5750'>daemon: Do not deduplicate files smaller than 8 KiB.</a><span class='msg-avail'>...<span class='msg-tooltip'>Files smaller than 8 KiB typically represent ~70% of the entries in
/gnu/store/.links but only contribute to ~4% of the space savings
afforded by deduplication.

Not considering these files for deduplication speeds up file insertion
in the store and, more importantly, leaves 'removeUnusedLinks' with
fewer entries to traverse, thereby speeding it up proportionally.

Partly fixes &lt;https://issues.guix.gnu.org/24937&gt;.

* config-daemon.ac: Remove symlink hard link check and CAN_LINK_SYMLINK
definition.
* guix/store/deduplication.scm (%deduplication-minimum-size): New
variable.
(deduplicate)[loop]: Do not recurse when FILE's size is below
%DEDUPLICATION-MINIMUM-SIZE.
(dump-port): New procedure.
(dump-file/deduplicate)[hash]: Turn into...
[dump-and-compute-hash]: ... this thunk.
Call 'deduplicate' only when SIZE is greater than
%DEDUPLICATION-MINIMUM-SIZE; otherwise call 'dump-port'.
* nix/libstore/gc.cc (LocalStore::removeUnusedLinks): Drop files where
st.st_size &lt; deduplicationMinSize.
* nix/libstore/local-store.hh (deduplicationMinSize): New declaration.
* nix/libstore/optimise-store.cc (deduplicationMinSize): New variable.
(LocalStore::optimisePath_): Return when PATH is a symlink or smaller
than 'deduplicationMinSize'.
* tests/derivations.scm ("identical files are deduplicated"): Produce
files bigger than %DEDUPLICATION-MINIMUM-SIZE.
* tests/nar.scm ("restore-file-set with directories (signed, valid)"):
Likewise.
* tests/store-deduplication.scm ("deduplicate, below %deduplication-minimum-size"):
New test.
("deduplicate", "deduplicate, ENOSPC"): Produce files bigger than
%DEDUPLICATION-MINIMUM-SIZE.
* tests/store.scm ("substitute, deduplication"): Likewise.
</span></span></td><td>Ludovic Courtès</td></tr>