tools/sfsnapshot-upload

   1 #!/bin/bash
   2 # sfsnapshot-upload - Snapshot upload script using sfsnapshotgit
   3 # Original author: Thomas Guyot-Sionnest <tguyot@gmail.com>
   4 #
   5 # This script uses sfsnapshotgit to update the snapshot is needed and upload
   6 # it to SourceForge. The branches to create snapshot from can be given as an
   7 # argument, otherwise the default is master.
   8
   9 # Handle command errors (-e) and coder sleep deprivation issues (-u)
  10 set -eu
  11 trap 'echo "An error occurred in sfsnapshot-upload at line $LINENO"; exit 1' EXIT
  12
  13 # This can be used to override the default in sfsnapshotgit:
  14 export SFSNAP_REPO=~/staging/nagiosplugins
  15 export SFSNAP_ORIGIN=origin
  16 export SFSNAP_DEST=~/staging/snapshot
  17
  18 ## Some stuff that shouldn't change often...
  19 # The file we'll use to create the snapshot
  20 sfsnapshot=~/bin/sfsnapshotgit
  21
  22 # Retention time for snapshots (in minutes), 0 for no retention.
  23 CLEAN_TIME=1440
  24
  25 # Where to place the generated files
  26 OUT_SERVER="tonvoon@frs.sourceforge.net"
  27 OUT_PATH="/home/groups/n/na/nagiosplug/htdocs/snapshot"
  28
  29 # Links to always point to the master branch for backwards-compatibility
  30 COMPATLINKS="HEAD trunk-`date -u +%Y%m%d%H%M`"
  31 # And compatibility links to always delete except the last one
  32 COMPATCLEANUP="trunk-*"
  33
  34 # If one or more argument is given, this is the branches to create the snapshots from
  35 if [ $# -eq 0 ]
  36 then
  37         HEADS='master'
  38 else
  39         HEADS=$@
  40 fi
  41
  42 # If we don't keep old snapshots we can clean up all links now
  43 if [ $CLEAN_TIME -eq 0 ]
  44 then
  45         find $SFSNAP_DEST -type l -name '*.gz' -delete
  46 fi
  47
  48 for head in $HEADS ; do
  49         # This runs the actual snapshot code. It creates new snapshots if needed and always
  50         # return the current snapshot file (even if it wasn't modified).
  51         file=$($sfsnapshot $head)
  52         # Create main head link
  53         ln -sf $file $SFSNAP_DEST/nagios-plugins-$head.tar.gz
  54
  55         # Keep links by branch name too if we keep old snapshots, so we can keep tracks of them
  56         if [ $CLEAN_TIME -gt 0 -a ! -e "$SFSNAP_DEST/nagios-plugins-$head-${file#nagios-plugins-}" ]
  57         then
  58                 ln -s $file $SFSNAP_DEST/nagios-plugins-$head-${file#nagios-plugins-}
  59         fi
  60
  61         # Cleanup and re-create backward-compatibility links
  62         if [ "$head" == "master" ]
  63         then
  64                 for cclean in $COMPATCLEANUP
  65                 do
  66                         find $SFSNAP_DEST -type l -name "nagios-plugins-$cclean.tar.gz" -delete
  67                 done
  68                 for compat in $COMPATLINKS
  69                 do
  70                         ln -sf $file $SFSNAP_DEST/nagios-plugins-$compat.tar.gz
  71                 done
  72         fi
  73 done
  74
  75 cd $SFSNAP_DEST
  76
  77 # Clean up links older than $CLEAN_TIME if needed
  78 if [ $CLEAN_TIME -gt 0 ]
  79 then
  80         find . -type l -name '*.gz' -mmin +$CLEAN_TIME -delete
  81 fi
  82
  83 # Now clean up files that we don't need
  84 # 1. loop over actual snapshots
  85 for dest in `find . -type f -name '*.gz' |xargs -n 1 basename`
  86 do
  87         # 2. Loop over the list of linked-to files
  88         for current in `find . -type l -name '*.gz' |xargs -n 1 readlink | sort | uniq`
  89         do
  90                 if [ "$current" == "$dest" ]
  91                 then
  92                         # File is being linked to - don't delete (continue first loop)
  93                         continue 2
  94                 fi
  95         done
  96         # No link to this file, we can drop it
  97         rm -f $dest
  98 done
  99
 100 # Create MD5 sum
 101 cat <<-END_README > README
 102         This is the latest snapshot of nagiosplug, consisting of the following
 103         head(s):
 104                 $HEADS
 105
 106         The nagios-plugins-<head>.tar.gz link will always point to the latest
 107         corresponding snapshot (nagios-plugins-<git-describe>.tar.gz).
 108
 109         For backward-compatibility, the nagios-plugins-HEAD.tar.gz and
 110         nagios-plugins-trunk-<ts> point to their corresponding "master" head.
 111
 112         The tarballs will only be updated when a change has been made. The
 113         MD5SUM file will be updated each time.
 114
 115         The MD5SUM are:
 116         END_README
 117 md5sum *.gz | tee -a README > MD5SUM
 118
 119 # Sync the files
 120 [ -n "$OUT_SERVER" ] && OUT_SERVER="$OUT_SERVER:"
 121 rsync -a --exclude=.htaccess --exclude=HEADER.html --delete "$SFSNAP_DEST/" "$OUT_SERVER$OUT_PATH"
 122
 123 trap - EXIT
 124