From d1aea0930d93817f80b59468c3d5c3b35d0690cb Mon Sep 17 00:00:00 2001
From: Kris Kennaway <kris@FreeBSD.org>
Date: Sat, 26 Jul 2008 15:16:16 +0000
Subject: [PATCH] Script run from cron to regularly update the master ZFS
 copies of the ports and source trees.  Since we have >=1 consumer of these
 trees that run frequently but do not insist on up-to-the-second trees, it
 makes sense to "pre-update" them regularly and then then re-use in all of the
 consumers, instead of potentially doing several updates simultaneously or on
 demand.  Consumers can clone the ZFS snapshot into their local filesystem
 which takes a couple of seconds instead of minutes or tens of minutes for the
 CVS update.

We update to a date stamp instead of "." because this avoids
ambiguity of commits that happen while the tree update is in progress
(unfortunately it's slower).
---
 Tools/portbuild/scripts/updatesnap | 63 ++++++++++++++++++++++++++++++
 1 file changed, 63 insertions(+)
 create mode 100755 Tools/portbuild/scripts/updatesnap

diff --git a/Tools/portbuild/scripts/updatesnap b/Tools/portbuild/scripts/updatesnap
new file mode 100755
index 000000000000..f968c4f2e626
--- /dev/null
+++ b/Tools/portbuild/scripts/updatesnap
@@ -0,0 +1,63 @@
+#!/bin/sh
+#
+# Update the master ports and source trees that are used by package builds
+# and other consumers
+
+base=/a/snap
+zbase=a/snap
+
+srepo=/r/ncvs
+prepo=/r/pcvs
+
+stamp() {
+	fulldate=$1
+        date -j -f %+ "${fulldate}" +%Y%m%d%H%M%S
+}
+
+finish() {
+    err=$1
+
+    end=$(date +%s)
+    echo "Finished at $(date)"
+    len=$((end-begin))
+    echo "Duration = $(date -j -f %s +%H:%M:%S ${len})"
+    exit 1
+}
+
+begin=$(date +%s)
+echo "Started at $(date)"
+
+# We need to preserve group writability so portmgr group can write
+umask 002
+
+#cvsup -g /root/cvs-supfile || finish 1
+
+cd $base/ports
+fulldate=$(date)
+cvs -Rq -d ${prepo} update -PdA -D "${fulldate}"
+echo ${fulldate} > cvsdone
+snapdate=$(stamp ${fulldate})
+zfs snapshot ${zbase}/ports@${snapdate}
+
+cd $base/src-HEAD
+fulldate=$(date)
+cvs -Rq -d ${srepo} update -PdA -D "${fulldate}"
+echo ${fulldate} > cvsdone
+snapdate=$(stamp ${fulldate})
+zfs snapshot ${zbase}/src-HEAD@${snapdate}
+
+cd $base/src-6
+fulldate=$(date)
+cvs -Rq -d ${srepo} update -PdA -D "${fulldate}" -r RELENG_6
+echo ${fulldate} > cvsdone
+snapdate=$(stamp ${fulldate})
+zfs snapshot ${zbase}/src-6@${snapdate}
+
+cd $base/src-7
+fulldate=$(date)
+cvs -Rq -d ${srepo} update -PdA -D "${fulldate}" -r RELENG_7
+echo ${fulldate} > cvsdone
+snapdate=$(stamp ${fulldate})
+zfs snapshot ${zbase}/src-7@${snapdate}
+
+finish 0