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#!/bin/bash
# sfsnapshot-upload - Snapshot upload script using sfsnapshotgit
# Original author: Thomas Guyot-Sionnest <tguyot@gmail.com>
#
# This script uses sfsnapshotgit to update the snapshot is needed and upload
# it to SourceForge. The branches to create snapshot from can be given as an
# argument, otherwise the default is master.
# Handle command errors (-e) and coder sleep deprivation issues (-u)
set -eu
trap 'echo "An error occurred in sfsnapshot-upload at line $LINENO"; exit 1' EXIT
# This can be used to override the default in sfsnapshotgit:
export SFSNAP_REPO=~/staging/nagiosplugins
export SFSNAP_ORIGIN=origin
export SFSNAP_DEST=~/staging/snapshot
## Some stuff that shouldn't change often...
# The file we'll use to create the snapshot
sfsnapshot=~/bin/sfsnapshotgit
# Retention time for snapshots (in minutes), 0 for no retention.
CLEAN_TIME=1440
# Where to place the generated files
OUT_SERVER="tonvoon@frs.sourceforge.net"
OUT_PATH="/home/groups/n/na/nagiosplug/htdocs/snapshot"
# Links to always point to the master branch for backwards-compatibility
COMPATLINKS="HEAD trunk-`date -u +%Y%m%d%H%M`"
# And compatibility links to always delete except the last one
COMPATCLEANUP="trunk-*"
# If one or more argument is given, this is the branches to create the snapshots from
if [ $# -eq 0 ]
then
HEADS='master'
else
HEADS=$@
fi
# If we don't keep old snapshots we can clean up all links now
if [ $CLEAN_TIME -eq 0 ]
then
find $SFSNAP_DEST -type l -name '*.gz' -delete
fi
for head in $HEADS ; do
# This runs the actual snapshot code. It creates new snapshots if needed and always
# return the current snapshot file (even if it wasn't modified).
file=$($sfsnapshot $head)
# Create main head link
ln -sf $file $SFSNAP_DEST/nagios-plugins-$head.tar.gz
# Keep links by branch name too if we keep old snapshots, so we can keep tracks of them
if [ $CLEAN_TIME -gt 0 -a ! -e "$SFSNAP_DEST/nagios-plugins-$head-${file#nagios-plugins-}" ]
then
ln -s $file $SFSNAP_DEST/nagios-plugins-$head-${file#nagios-plugins-}
fi
# Cleanup and re-create backward-compatibility links
if [ "$head" == "master" ]
then
for cclean in $COMPATCLEANUP
do
find $SFSNAP_DEST -type l -name "nagios-plugins-$cclean.tar.gz" -delete
done
for compat in $COMPATLINKS
do
ln -sf $file $SFSNAP_DEST/nagios-plugins-$compat.tar.gz
done
fi
done
cd $SFSNAP_DEST
# Clean up links older than $CLEAN_TIME if needed
if [ $CLEAN_TIME -gt 0 ]
then
find . -type l -name '*.gz' -mmin +$CLEAN_TIME -delete
fi
# Now clean up files that we don't need
# 1. loop over actual snapshots
for dest in `find . -type f -name '*.gz' |xargs -n 1 basename`
do
# 2. Loop over the list of linked-to files
for current in `find . -type l -name '*.gz' |xargs -n 1 readlink | sort | uniq`
do
if [ "$current" == "$dest" ]
then
# File is being linked to - don't delete (continue first loop)
continue 2
fi
done
# No link to this file, we can drop it
rm -f $dest
done
# Create MD5 sum
cat <<-END_README > README
This is the latest snapshot of nagiosplug, consisting of the following
head(s):
$HEADS
The nagios-plugins-<head>.tar.gz link will always point to the latest
corresponding snapshot (nagios-plugins-<git-describe>.tar.gz).
For backward-compatibility, the nagios-plugins-HEAD.tar.gz and
nagios-plugins-trunk-<ts>.tar.gz point to their corresponding "master"
head.
The tarballs will only be updated when a change has been made. The
MD5SUM file is updated every time the snapshot script runs.
The MD5SUMs are:
END_README
md5sum *.gz | tee -a README > MD5SUM
# Sync the files
[ -n "$OUT_SERVER" ] && OUT_SERVER="$OUT_SERVER:"
rsync -a --exclude=.htaccess --exclude=HEADER.html --delete "$SFSNAP_DEST/" "$OUT_SERVER$OUT_PATH"
trap - EXIT
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