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include/dual_rootfs/usr/libexec/dpkg/dpkg-db-keeper

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+#!/bin/sh
+#
+# Copyright © 2023 Guillem Jover <guillem@debian.org>
+#
+# This program 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 2 of the License, or
+# (at your option) any later version.
+#
+# This program 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 this program.  If not, see <https://www.gnu.org/licenses/>.
+
+ADMINDIR='/var/lib/dpkg'
+
+PKGDATADIR_DEFAULT='/usr/share/dpkg'
+PKGDATADIR="${DPKG_DATADIR:-$PKGDATADIR_DEFAULT}"
+
+# shellcheck source=src/sh/dpkg-error.sh
+. "$PKGDATADIR/sh/dpkg-error.sh"
+
+# This script is used to track any change in the dpkg database for later
+# inspection, either as a matter of record tracking or to aid in debugging
+# dpkg behavior. It can be installed as a post-invoke hook such as:
+#
+# ,--- /etc/dpkg/dpkg.cfg.d/db-keeper ---
+# post-invoke "/usr/libexec/dpkg/dpkg-db-keeper"
+# `---
+
+if [ -n "$DPKG_ROOT" ]; then
+  # Only operate on the main system.
+  exit 0
+fi
+
+if ! command -v git >/dev/null; then
+  # Do nothing if there is no git.
+  exit 0
+fi
+
+: "${DPKG_ADMINDIR:=/var/lib/dpkg}"
+
+cd "$DPKG_ADMINDIR" || exit 0
+
+if [ ! -e .git ]; then
+  # Initialize the git repo.
+  git init
+fi
+
+git add -A
+git commit -m 'Commit dpkg db updates'
+
+exit 0