user/livecd-support: Many improvements

* Change install scripts to local.d scripts.

* Add a local.d script to make dhcpcd setuid. (horizon#361)

* Make the Desktop Entry file a real file instead of a heredoc.

* Remove setuid bit from the shell script; we don't need this any more.

* Pull in our new LXQt theme for a better experience.

* Add XFCE subpackage.

* Set PATH correctly for horizon-run-qt5 so it can find mkfs.vfat and
  friends.

* Set the clock with chronyd if possible on boot, before the graphical
  environment starts.

* Use sudo for partitionmanger. (horizon#368)

Ref: #1081

user/livecd-support/APKBUILD

@@ -2,19 +2,26 @@
 # Maintainer: A. Wilcox <awilfox@adelielinux.org>
 pkgname=livecd-support
 pkgver=1.0
-pkgrel=0
+pkgrel=1
 pkgdesc="Support files for booting Adélie live media"
 url="https://www.adelielinux.org/"
 arch="noarch"
-options="!check suid"  # Metapackage
+options="!check"  # Metapackage
 license="NCSA"
-subpackages="$pkgname-kde $pkgname-lxqt $pkgname-mate $pkgname-horizon"
+subpackages="$pkgname-kde $pkgname-lxqt $pkgname-mate $pkgname-xfce
+	$pkgname-horizon"
 depends=""
-install="livecd-support.post-install livecd-support.post-deinstall"
 source="kde.sddm.conf
 	lxqt.sddm.conf
 	mate.sddm.conf
+	xfce.sddm.conf
+	horizon.desktop
 	horizon-ui
+	dhcpcd-suid.start
+	allow-nullpw.start
+	allow-nullpw.stop
+	set-time.start
+	live.sudoersd
 	"
 
 package() {
@@ -23,21 +30,19 @@ package() {
 
 horizon() {
 	pkgdesc="Add the ability to install Adélie from live media"
-	depends="horizon-qt5 horizon netsurf partitionmanager xterm"
+	depends="dhcpcd horizon-qt5 horizon netsurf partitionmanager sudo xterm"
 
-	install -D -m4755 "$srcdir"/horizon-ui "$subpkgdir"/usr/sbin/horizon-ui
+	install -D -m755 "$srcdir"/horizon-ui "$subpkgdir"/usr/sbin/horizon-ui
+	install -D -m644 "$srcdir"/live.sudoersd "$subpkgdir"/etc/sudoers.d/live-pm
 
-	mkdir -p "$subpkgdir"/usr/share/applications
-	cat >"$subpkgdir"/usr/share/applications/horizon.desktop <<DESKTOP
-[Desktop Entry]
-Type=Application
-Version=1.1
-Name=System Installation
-Comment=Install Adélie Linux to your computer
-Icon=system-software-install
-Exec=/usr/sbin/horizon-ui
-Categories=System;
-DESKTOP
+	for script in dhcpcd-suid.start allow-nullpw.start allow-nullpw.stop \
+	set-time.start; do
+		install -D -m755 "$srcdir"/$script \
+			"$subpkgdir"/etc/local.d/$script
+	done
+
+	install -D -m644 "$srcdir"/horizon.desktop \
+		"$subpkgdir"/usr/share/applications/horizon.desktop
 }
 
 
@@ -49,7 +54,7 @@ kde() {
 
 lxqt() {
 	pkgdesc="$pkgdesc (LXQt spin)"
-	depends="livecd-support lxqt-desktop sddm x11"
+	depends="adelie-lxqt-theme livecd-support lxqt-desktop sddm x11"
 	install -D -m644 "$srcdir"/lxqt.sddm.conf "$subpkgdir"/etc/sddm.conf.d/lxqt.conf
 }
 
@@ -59,7 +64,20 @@ mate() {
 	install -D -m644 "$srcdir"/mate.sddm.conf "$subpkgdir"/etc/sddm.conf.d/mate.conf
 }
 
+xfce() {
+	pkgdesc="$pkgdesc (XFCE spin)"
+	depends="livecd-support xfce-desktop sddm x11"
+	install -D -m644 "$srcdir"/xfce.sddm.conf "$subpkgdir"/etc/sddm.conf.d/xfce.conf
+}
+
 sha512sums="eddcc68917b4dc376bb9b7e7ed5e2c06379957c787c7152e654f31adb402f5811463bff69ce2a41a2cb87b0fa83a4aa3718b63d830eb9ee46b7d0d2058663d34  kde.sddm.conf
 9a9a61035c0a8c5ee84d235f319ca158216056221d03a0f5a3846982cb6110c569d7b4eadd2e24de66a75a428c18850e0393e20412e0edcfc8ad41c9d4783604  lxqt.sddm.conf
 603d2a5b1fdad0cb0abfefa8a4019c690ee4f5f9ac45057eeeac3bac3207e7871bdb32a564791fb99d965959b39a7de979d575db2694c2d1d88a4a16b68adb25  mate.sddm.conf
-b6d39b2feb0aa400ac7013d6b8c9080ab00ffc1c8b40dbf9489df999fe08b86aebd878c84d968a53ad29bc2a2c30209d8c6ff5daa4171aab03d5b921f966e08d  horizon-ui"
+a2cf327b4733432a992222ee162b9fcf613de3980bcf5ee2ae17615def69b9ad8c631675e9616dc6d5a718f5d855ea70c5d5b819c8471e868fbd112575869d64  xfce.sddm.conf
+741050465f75062c99fc4206d52d165682fe1757070f8ca8accfef3a6a9ca860d8dc5da0f14ff3f415db4a76a22bc0764a313779a3ce15bde746bdb7960568c0  horizon.desktop
+39ae77fbf34af95ba9b5c49d27cdf63472dccd4e453feb83fa7a58f127005dac1adc9898fb2de93c89cfaca6c305030fdd30ecbde8c029fea37dfdb50d4ff078  horizon-ui
+8d332a7d6aa0444b27f72cb66ca815395b69f647f2b46d9339f07833d2b020c27748508580d3f49c72b408781112aaaba32cf4dc8846ad781c23a457a7a36c6e  dhcpcd-suid.start
+96c4763e971bbcd30c28d09ff9d8e80a1c1729c94f5b2f2187ba38cc5f455af8d6470d605c2d6c0a621614fc2616e10afa44faed0b6cd564ca769b63aaa1cf82  allow-nullpw.start
+b3b5de1ccbbc35d5c4a83daac9787837baa0186e413be58da2739d1e78cb7999e9b3c232448ea8e895a571025d91a81801882671b741be5dc678cba2100c8500  allow-nullpw.stop
+fec26d0ca5070b4a83460c032c3118ea4e059dd1f5b798c938d290ccbfe93e52721780172ed8b2d523ec3c5a88af3634308b34c1a4ee16586cbe0a2f4d8d0b27  set-time.start
+b5516103b0a0b9363bc174d78b0ce81bd72a4dd5ec57c3934808fd525e88ab9c90b22b100fa6f955a57322a57ce19786eae849d6fea4bc71af6427bc7f8f508e  live.sudoersd"

user/livecd-support/livecd-support.post-install → user/livecd-support/allow-nullpw.start

 #!/bin/sh
+# Welcome to Adélie Linux.
+# This script changes local PAM configuration to allow null passwords.
+# This way, the `live` user does not need a password.
 
 sed -i 's/pam_unix.so$/pam_unix.so nullok_secure/' /etc/pam.d/base-auth

user/livecd-support/livecd-support.post-deinstall → user/livecd-support/allow-nullpw.stop

 #!/bin/sh
+# Welcome to Adélie Linux.
+# This script undoes the null-password change when the system goes down.
 
 sed -i 's/pam_unix.so nullok_secure$/pam_unix.so/' /etc/pam.d/base-auth

user/livecd-support/dhcpcd-suid.start

+#!/bin/sh
+# Welcome to Adélie Linux.
+# This script ensures dhcpcd can be executed by the live user.
+
+chmod 4755 /sbin/dhcpcd

user/livecd-support/horizon-ui

@@ -5,4 +5,6 @@
 #
 
 horizon-qt5
-if [ $? -eq 0 ]; then horizon-run-qt5; fi
+if [ $? -eq 0 ]; then
+	PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin horizon-run-qt5
+fi

user/livecd-support/horizon.desktop

+[Desktop Entry]
+Type=Application
+Version=1.1
+Name=System Installation
+Comment=Install Adélie Linux to your computer
+Icon=system-software-install
+Exec=/usr/sbin/horizon-ui
+Categories=System;

user/livecd-support/live.sudoersd

+# Welcome to Adélie Linux.
+# This file allows the live user to run partitionmanager.
+live ALL=(ALL:ALL) NOPASSWD: /usr/bin/partitionmanager

user/livecd-support/set-time.start

+#!/bin/sh
+# Welcome to Adélie Linux.
+# This script ensures the system clock is set correctly if at all possible.
+
+nm-online -t 10 && chronyd -q

user/livecd-support/xfce.sddm.conf

+[Autologin]
+User=live
+Session=xfce.desktop