app-backup/timeshift-autosnap: new package

Automatically make timeshift snapshots every time emerge
installs a package

Package-Manager: Portage-3.0.23, Repoman-3.0.3
Signed-off-by: Pascal Jäger <pascal.jaeger@leimstift.de>

app-backup/timeshift-autosnap/Manifest

@@ -0,0 +1 @@
+DIST timeshift-autosnap-0.9.tar.gz 2876 BLAKE2B 03063b1cedd18eee56681b9af10954f7c26a0dfdd08eb51ba0dc56c5b86eed1dac3024cd5b790ed2f00f30a9c09988d2c2785dad4041e931e3af2301f7159491 SHA512 15dbe97ef26954c33aa0a9dccb62a93da81b98d7194423111536d5ef7c832b8432c75b58b9edbbfaa669a333692bd71624a221928ca8e186cdf833d7ebd63c9c

app-backup/timeshift-autosnap/files/timeshift-autosnap-remove-arch-specific.patch

@@ -0,0 +1,10 @@
+--- a/timeshift-autosnap
++++ b/timeshift-autosnap
+@@ -53,7 +53,7 @@ if $(get_property "deleteSnapshots" "boolean" "true") ; then
+     fi
+ fi;
+ 
+-if $(get_property "updateGrub" "boolean" "true") && [ "$(pacman -Qs ^grub-btrfs$)" ]; then
++if $(get_property "updateGrub" "boolean" "true") ; then
+     grub-mkconfig -o /boot/grub/grub.cfg
+ fi;

app-backup/timeshift-autosnap/metadata.xml

@@ -0,0 +1,17 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE pkgmetadata SYSTEM "http://www.gentoo.org/dtd/metadata.dtd">
+<pkgmetadata>
+	<maintainer type="person">
+		<email>pascal.jaeger@leimstift.de</email>
+		<name>Pascal Jäger</name>
+	</maintainer>
+	<upstream>
+		<remote-id type="github">Antynea/grub-btrfs</remote-id>
+	</upstream>
+	<longdescription lang="en">
+		Improves Grub by adding "btrfs snapshots" to the Grub menu.
+
+		You can boot your system on a "snapshot" from the Grub menu.
+		Supports manual snapshots, snapper, timeshift ...
+	</longdescription>
+</pkgmetadata>

app-backup/timeshift-autosnap/timeshift-autosnap-0.9.ebuild

@@ -0,0 +1,43 @@
+# Copyright 2019-2021 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=8
+
+DESCRIPTION="Automatically creats a snapshot everytime before portage installs a package"
+HOMEPAGE="https://gitlab.com/gobonja/timeshift-autosnap"
+SRC_URI="https://gitlab.com/gobonja/timeshift-autosnap/-/archive/${PV}/{$P}.tar.gz -> ${P}.tar.gz"
+
+LICENSE="MIT"
+SLOT="0"
+KEYWORDS="~amd64 ~x86"
+IUSE=""
+
+DEPEND="
+        app-backup/timeshift
+        >=sys-apps/portage-2.1
+"
+RDEPEND="${DEPEND}"
+BDEPEND=""
+
+PATCHES=( "${FILESDIR}/${PN}-remove-arch-specific.patch" )
+
+src_unpack() {
+        default
+	mv ${WORKDIR}/timeshift-autosnap-${PV}* ${WORKDIR}/timeshift-autosnap-${PV}
+}
+
+src_compile(){
+	true
+}
+
+src_install(){
+	dobin timeshift-autosnap
+	insinto /etc
+	doins timeshift-autosnap.conf
+}
+
+pkg_postinst() {
+	touch /etc/portage/bashrc
+        grep -q  '#!/bin/' /etc/portage/bashrc || awk -i inplace 'BEGINFILE{print "#!/bin/sh"}{print}' /etc/portage/bashrc
+        grep -q 'timeshift-autosnap' /etc/portage/bashrc || echo 'function pre_pkg_setup() { /usr/bin/timeshift-autosnap ; }' >> /etc/portage/bashrc
+}