[pacman-dev] [PATCH] checkupdates: add new contrib script

[keenerd]

checkupdates provides a way of checking for new updates without
touching the local sync database.  Based heavily on a script
by Dave Reisner.
---
 contrib/.gitignore      |    1 +
 contrib/Makefile.am     |    3 +++
 contrib/checkupdates.in |   44 ++++++++++++++++++++++++++++++++++++++++++++
 3 files changed, 48 insertions(+), 0 deletions(-)
 create mode 100644 contrib/checkupdates.in

diff --git a/contrib/.gitignore b/contrib/.gitignore
index 19b81e0..36c0918 100644
--- a/contrib/.gitignore
+++ b/contrib/.gitignore
@@ -1,5 +1,6 @@
 bacman
 bash_completion
+checkupdates
 paccache
 pacdiff
 paclist
diff --git a/contrib/Makefile.am b/contrib/Makefile.am
index eca39e7..1ead042 100644
--- a/contrib/Makefile.am
+++ b/contrib/Makefile.am
@@ -6,6 +6,7 @@ bin_SCRIPTS = \

 OURSCRIPTS = \
 	bacman \
+	checkupdates \
 	paccache \
 	pacdiff \
 	paclist \
@@ -22,6 +23,7 @@ EXTRA_DIST = \
 	PKGBUILD.vim \
 	bacman.in \
 	bash_completion.in \
+	checkupdates.in \
 	paccache.in \
 	paclog-pkglist.in \
 	pacdiff.in \
@@ -76,6 +78,7 @@ uninstall-local:

 bacman: $(srcdir)/bacman.in
 bash_completion: $(srcdir)/bash_completion.in
+checkupdates: $(srcdir)/checkupdates.in
 paccache: $(srcdir)/paccache.in
 pacdiff: $(srcdir)/pacdiff.in
 paclist: $(srcdir)/paclist.in
diff --git a/contrib/checkupdates.in b/contrib/checkupdates.in
new file mode 100644
index 0000000..e16378f
--- /dev/null
+++ b/contrib/checkupdates.in
@@ -0,0 +1,44 @@
+#!/bin/bash
+#
+# checkupdates: Safely print a list of pending updates.
+#
+# Copyright (c) 2011 Kyle Keen <keenerd at gmail.com>
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+#
+
+if (( $# > 0 )); then
+	echo "checkupdate: Safely print a list of pending updates."
+	echo "Use: checkupdates"
+	echo "Export the 'CHECKUPDATE_DB' variable to change the path of the
temporary database."
+	exit 0
+fi
+
+if [[ -z $CHECKUPDATE_DB ]]; then
+	CHECKUPDATE_DB="${TMPDIR:-/tmp}/checkup-db-${USER}/"
+fi
+
+trap 'rm -f $CHECKUPDATE_DB/db.lck' INT TERM EXIT
+
+eval $(awk '/DBPath/ {print $1$2$3}' /etc/pacman.conf)
+DBPath="${DBPath:- at localstatedir@/lib/pacman/}"
+
+mkdir -p "$CHECKUPDATE_DB"
+ln -s "${DBPath}/local" "$CHECKUPDATE_DB" &> /dev/null
+fakeroot pacman -Sqy --dbpath "$CHECKUPDATE_DB" &> /dev/null
+pacman -Qqu --dbpath "$CHECKUPDATE_DB" 2> /dev/null
+
+exit 0
+
+# vim: set ts=2 sw=2 noet:
-- 
1.7.9