From 8b6b170f763a27ff7fa5bff3fb66d09eb3b7a102 Mon Sep 17 00:00:00 2001
From: Luke Shumaker <lukeshu@sbcglobal.net>
Date: Sat, 28 Jan 2017 01:28:49 -0500
Subject: Initial commit of holo-files integration.

---
 50pristine-etc-keeper.post-install       |  7 ----
 Makefile                                 | 11 ++++--
 drain                                    | 65 +++++++++++++++++++++-----------
 zz-pristine-etc-keeper-post-install.hook | 14 +++++++
 4 files changed, 64 insertions(+), 33 deletions(-)
 delete mode 100755 50pristine-etc-keeper.post-install
 create mode 100644 zz-pristine-etc-keeper-post-install.hook

diff --git a/50pristine-etc-keeper.post-install b/50pristine-etc-keeper.post-install
deleted file mode 100755
index 757beba..0000000
--- a/50pristine-etc-keeper.post-install
+++ /dev/null
@@ -1,7 +0,0 @@
-#!/usr/bin/env bash
-# Copyright 2016 Luke Shumaker
-# This work is free. You can redistribute it and/or modify it under the
-# terms of the Do What The Fuck You Want To Public License, Version 2,
-# as published by Sam Hocevar. See the COPYING file for more details.
-
-/etc/etckeeper/pristine/fill 'etckeeper post-install'
diff --git a/Makefile b/Makefile
index ef6a552..fbde21c 100644
--- a/Makefile
+++ b/Makefile
@@ -10,14 +10,11 @@ include $(topsrcdir)/build-aux/Makefile.head.mk
 # The core of pristine-etc-keeper
 std.sys_files += /etc/etckeeper/pristine/drain
 std.sys_files += /etc/etckeeper/pristine/fill
-std.sys_files += /etc/etckeeper/post-install.d/50pristine-etc-keeper
-std.sys_files += /var/lib/pristine-etc/etc.lock
+std.sys_files += /var/lib/pristine-etc/chroot.lock
 std.sys_files += /var/lib/pristine-etc/spool.lock
 
 $(DESTDIR)/etc/etckeeper/pristine/%: $(srcdir)/%
 	install -Dm755 $< $@
-$(DESTDIR)/etc/etckeeper/post-install.d/%: $(srcdir)/%.post-install
-	install -Dm755 $< $@
 $(DESTDIR)/var/lib/pristine-etc/%.lock:
 	mkdir -p $(@D)
 	touch $@
@@ -29,6 +26,12 @@ $(DESTDIR)/usr/bin/pristine-etc-keeper: $(DESTDIR)/etc/etckeeper/pristine/fill
 	mkdir -p $(@D)
 	ln -srfT $< $@
 
+# pacman integration
+std.sys_files += /usr/share/libalpm/hooks/zz-pristine-etc-keeper-post-install.hook
+
+$(DESTDIR)/usr/share/libalpm/hooks/%.hook: %.hook
+	install -Dm644 $< $@
+
 # systemd integration
 std.sys_files += /usr/lib/systemd/system/pristine-etc-keeper.service
 
diff --git a/drain b/drain
index c739b12..c557823 100755
--- a/drain
+++ b/drain
@@ -1,5 +1,5 @@
 #!/usr/bin/env bash
-# Copyright 2016 Luke Shumaker
+# Copyright 2016-2017 Luke Shumaker
 # This work is free. You can redistribute it and/or modify it under the
 # terms of the Do What The Fuck You Want To Public License, Version 2,
 # as published by Sam Hocevar. See the COPYING file for more details.
@@ -8,48 +8,69 @@
 
 declare -r workdir=/var/lib/pristine-etc
 
-pacman-etc-name-ver() {
-	LC_ALL=C pacman -Qo /etc | sed 's|^/etc/ is owned by ||'
+watchdirs=(
+	/etc
+	/usr/share/holo/files
+)
+readonly dirs
+
+pacman-watched-name-ver-dirs() {
+	local dir dirs
+	dirs=()
+	for dir in "${watchdirs[@]}"; do
+		if [[ -d "$dir" ]]; then
+			dirs+=("$dir")
+		fi
+	done
+	LC_ALL=C pacman -Qo "${dirs[@]}" | sed -r 's| is owned by | |' |
+	    awk '{i=$2" "$3; a[i]=a[i]" "$1} END{for(i in a){print i " " a[i]}}'
 }
 
 pacman-all-name-arch() {
 	LC_ALL=C pacman -Qni | tr $'\n' $'\r' | sed 's/\r\r/\n/g' | sed -r 's|(.*\r)?Name\s*:\s*(\S+)(\r.*)?\rArchitecture\s*:\s*(\S+)\r.*|\2 \4|'
 }
 
+pacman-watched-name-arch-ver-dirs() {
+	join <(pacman-all-name-arch|sort) <(pacman-watched-name-ver-dirs|sort)
+}
+
 commit() (
-	local msg="$1"
+	msg="$1"
 
 	cd "$workdir"
 	if ! [[ -d etc.git ]]; then
-		mkdir -p etc
-		(cd etc && etckeeper init -d "$PWD")
-		mv etc/.git etc.git
+		mkdir -p chroot/etc
+		(cd chroot/etc && etckeeper init -d "$PWD")
+		mv chroot/etc/.git etc.git
 		ln -sr etc.git etc/.git
 	fi
-
-	rm -rf etc/
-
-	local err=false
-	local files=()
-	while IFS=' ' read -r pkgname pkgver arch; do
-		local file=("/var/cache/pacman/pkg/$pkgname-$pkgver-$arch".pkg.tar.*)
+	rm -rf chroot
+	mkdir chroot
+	cd chroot
+
+	err=false
+	files=()
+	while IFS=' ' read -r pkgname arch pkgver dirs; do
+		file=("/var/cache/pacman/pkg/$pkgname-$pkgver-$arch".pkg.tar.*)
 		if ! test -f "$file"; then
 			printf "ERROR: no cached package for %s %s %s\n" "$pkgname" "$pkgver" "$arch"
 			err=true
 		fi
-		files+=("$file")
-	done < <(join <(pacman-etc-name-ver|sort) <(pacman-all-name-arch|sort))
+		files+=("$file $dirs")
+	done < <(pacman-watched-name-arch-ver-dirs
 	if $err; then
 		return 1
 	fi
-	local file
-	for file in "${files[@]}"; do
+	for filespec in "${files[@]}"; do
+		read file dirs_str <<<"$filespec"
+		read -a dirs <<<"$dirs_str"
 		printf " -> %s\n" "$file"
-		bsdtar xpvf "$file" etc
+		bsdtar xpvf "$file" "${dirs[@]#/}"
 	done
 
-	ln -sr etc.git etc/.git
+	ln -sr ../etc.git etc/.git
 
+	HOLO_ROOT_DIR=. holo apply
 	cd etc/
 	etckeeper update-ignore -d "$PWD"
 	if etckeeper unclean -d "$PWD"; then
@@ -59,7 +80,7 @@ commit() (
 
 pull() (
 	cd /etc
-	git remote add pristine "${workdir}/etc" &>/dev/null || true
+	git remote add pristine "${workdir}/chroot/etc" &>/dev/null || true
 	git fetch pristine
 )
 
@@ -79,7 +100,7 @@ main() {
 	set -e -o pipefail
 	umask 0022
 
-	if ! lock 7 "${workdir}/etc.lock" -n; then
+	if ! lock 7 "${workdir}/chroot.lock" -n; then
 		return 0
 	fi
 	while true; do
diff --git a/zz-pristine-etc-keeper-post-install.hook b/zz-pristine-etc-keeper-post-install.hook
new file mode 100644
index 0000000..24b4190
--- /dev/null
+++ b/zz-pristine-etc-keeper-post-install.hook
@@ -0,0 +1,14 @@
+# pristine-etc-keeper post-install hook for Pacman 5 and newer
+
+[Trigger]
+Operation = Install
+Operation = Upgrade
+Operation = Remove
+Type = File
+Target = etc/* usr/share/holo/files/*
+
+[Action]
+Description = pristine-etc-keeper: post-transaction commit
+When = PostTransaction
+Exec = /etc/etckeeper/pristine/fill 'pacman post-install'
+Depends = holo-files pristine-etc-keeper
-- 
cgit v1.2.3