Initial commit.

etckeeper/post-install.d/50vcs-commit

@@ -0,0 +1,91 @@
+#!/bin/sh
+set -e
+
+pl="/var/cache/etckeeper/packagelist"
+
+# Parent process is etckeeper
+# (Only procps ps is currently supported, others will fail,
+# so this may end up empty.)
+ETCKEEPER_PID=$( ps --no-headers -o ppid "${PPID}" 2>/dev/null | sed 's/^ *//' )
+
+# Find the parent of etckeeper and get the command line of the process
+if ! [ -z "${ETCKEEPER_PID}" ]; then
+	ETCKEEPER_PPID=$( ps --no-headers -o ppid "${ETCKEEPER_PID}" | sed 's/^ *//' )
+	ETCKEEPER_PARENT_COMMAND_LINE=$( ps --no-headers -o args "${ETCKEEPER_PPID}" )
+fi
+
+get_changes () {
+	if [ "$VCS" = git ]; then
+		git diff --stat | grep '|' | cut -d'|' -f1 | cut -b2-
+		git ls-files --exclude-standard --others
+	fi
+	if [ "$VCS" = hg ]; then
+		hg status --no-status
+	fi
+	if [ "$VCS" = bzr ]; then
+		bzr status -S | cut -b5-
+	fi
+	if [ "$VCS" = darcs ]; then
+		# ignore ' file -> file' lines for moved files
+		# trim ' -M +N rP' from change summary
+		darcs whatsnew --summary | grep -v '^ .* -> ' | cut -d' ' -f2- | sed 's/ [-+r][0-9]\+//g;s/^\.\///'
+		# lines beginning with 'a' show unversioned files
+		darcs whatsnew --look-for-adds --boring --summary | grep '^a' | cut -d' ' -f2- | sed 's/^\.\///'
+	fi
+}
+
+get_changed_packages () {
+	if [ "$LOWLEVEL_PACKAGE_MANAGER" = dpkg ]; then
+		get_changes | sed 's/^/\/etc\//;s/\s*$//' | xargs -d '\n' dpkg 2>/dev/null -S | cut -d':' -f1 | sed 's/, /\n/g'
+	fi
+	if [ "$LOWLEVEL_PACKAGE_MANAGER" = rpm ]; then
+		# if output contains file path, file was not found
+		get_changes | sed 's/^/\/etc\//;s/\s*$//' | xargs -d '\n' rpm --qf '%{NAME}\n' -qf | grep -v "/etc/"
+	fi
+	# is it even possible to use pacmatic without pacman?
+	if [ "$LOWLEVEL_PACKAGE_MANAGER" = pacman -o "$LOWLEVEL_PACKAGE_MANAGER" = pacmatic ]; then
+		get_changes | sed 's/^/\/etc\//;s/\s*$//' | xargs -d '\n' pacman 2>/dev/null -Qo | rev | cut -d' ' -f1-2 | rev | cut -d' ' -f1
+	fi
+	if [ "$LOWLEVEL_PACKAGE_MANAGER" = pkgng ]; then
+		get_changes | sed 's/^/\/etc\//;s/\s*$//' | xargs -d '\n' pkg which --quiet | rev | cut -d'-' -f2- | rev
+	fi
+}
+
+if etckeeper unclean; then
+	if [ -z "${ETCKEEPER_PARENT_COMMAND_LINE}" ]; then
+		message="committing changes in /etc after $HIGHLEVEL_PACKAGE_MANAGER run"
+	else
+		message="committing changes in /etc made by \"$ETCKEEPER_PARENT_COMMAND_LINE\""
+	fi
+
+	set +e
+	if [ -e $pl.pre-install ] && [ "$(cat $pl.fmt 2>/dev/null || true)" = "$(etckeeper list-installed fmt)" ]; then
+		(
+			echo "$message"
+			echo
+			get_changed_packages | sort | uniq > $pl.found-pkgs
+			if [ -s $pl.found-pkgs ]; then
+				sed -i 's/^/^[-+]/;s/$/ /' $pl.found-pkgs
+				etckeeper list-installed | diff -U0 $pl.pre-install - | tail -n+4 | egrep '^[-+]' | grep -f $pl.found-pkgs > $pl.found-packages
+				if [ -s $pl.found-packages ]; then
+					echo "Packages with configuration changes:"
+					cat $pl.found-packages || true
+					echo
+				fi
+			fi
+			echo "Package changes:"
+			etckeeper list-installed | diff -U0 $pl.pre-install - | tail -n+4 | egrep '^[-+]' || true
+		) | etckeeper commit --stdin
+	else
+		etckeeper commit "$(printf "$message")"
+	fi
+	status=$?
+	set -e
+
+	if [ "$status" != 0 ]; then
+		echo "warning: etckeeper failed to commit changes in /etc using $VCS" >&2
+	fi
+fi
+
+rm -f $pl.pre-install $pl.fmt
+rm -f $pl.found-pkgs $pl.found-packages