[pacman-dev] [PATCH 3/3] Add example hook scripts to etc/pacman.d/hooks

[Daniel Mendler]

	* example-hook is a template
	* checksums computes file checksums after package installation

Signed-off-by: Daniel Mendler <mail at daniel-mendler.de>
---
 etc/pacman.d/hooks/checksums    |   51 +++++++++++++++++++++++++++++++++++++++
 etc/pacman.d/hooks/example-hook |   41 +++++++++++++++++++++++++++++++
 2 files changed, 92 insertions(+), 0 deletions(-)
 create mode 100644 etc/pacman.d/hooks/checksums
 create mode 100644 etc/pacman.d/hooks/example-hook

diff --git a/etc/pacman.d/hooks/checksums b/etc/pacman.d/hooks/checksums
new file mode 100644
index 0000000..7ad19a1
--- /dev/null
+++ b/etc/pacman.d/hooks/checksums
@@ -0,0 +1,51 @@
+#
+# /etc/pacman.d/hooks/checksums
+#
+# Example script which computes checksums for each file after package installation.
+# It can be used to check system integrity.
+#
+
+post_install() {
+	name=$1
+	ver=$2
+	pkg=$name-$ver
+	pkg_path="/var/lib/pacman/local/$pkg"
+	echo "computing checksums for $pkg"
+	files=`sed -e '/^%FILES%$/d;/^$/d;s/.*/\/&/' "$pkg_path/files"`
+	# Write checksum entries
+	# filename type mode owner group (link target/sha256 checksum)
+	for file in $files; do
+		mode=`stat -c '%a' $file`
+		owner=`stat -c '%u' $file`
+		group=`stat -c '%g' $file`
+		if [ -L "$file" ]; then
+			link=`readlink $file`
+			echo "$file s $mode $owner $group $link"
+		elif [ -f "$file" ]; then
+			checksum=`sha256sum $file`
+			echo "$file f $mode $owner $group ${checksum:0:64}"
+		elif [ -d "$file" ]; then
+			echo "$file d $mode $owner $group"
+		fi
+	done > "$pkg_path/checksums"
+}
+
+pre_remove() {
+	name=$1
+	ver=$2
+	rm -f "/var/lib/pacman/local/$name-$ver/checksums"
+}
+
+pre_upgrade() {
+	name=$1
+	ver=$2
+	oldver=$3
+	pre_remove $name $oldver
+}
+
+post_upgrade() {
+	name=$1
+	ver=$2
+	oldver=$3
+	post_install $name $ver
+}
diff --git a/etc/pacman.d/hooks/example-hook b/etc/pacman.d/hooks/example-hook
new file mode 100644
index 0000000..e91f935
--- /dev/null
+++ b/etc/pacman.d/hooks/example-hook
@@ -0,0 +1,41 @@
+#
+# /etc/pacman.d/hooks/example-hook
+#
+
+pre_install() {
+	name=$1
+	ver=$2
+	echo "example-hook: pre_install $name $ver"
+}
+
+post_install() {
+	name=$1
+	ver=$2
+	echo "example-hook: post_install $name $ver"
+}
+
+pre_upgrade() {
+	name=$1
+	ver=$2
+	oldver=$3
+	echo "example-hook: pre_upgrade $name $ver $oldver"
+}
+
+post_upgrade() {
+	name=$1
+	ver=$2
+	oldver=$3
+	echo "example-hook: post_upgrade $name $ver $oldver"
+}
+
+pre_remove() {
+	name=$1
+	ver=$2
+	echo "example-hook: pre_remove $name $ver"
+}
+
+post_remove() {
+	name=$1
+	ver=$2
+	echo "example-hook: post_remove $name $ver"
+}
-- 
1.7.3.5