hooks/pre-receive

   1 #!/bin/sh
   2 #
   3 # Keep track of the last time we modified the object store
   4 #
   5 # Beware, we MAY be running in a chroot!
   6
   7 set -e
   8
   9 git config gitweb.lastreceive "$(date '+%a, %d %b %Y %T %z')"
  10
  11 # Read the incoming refs and freshen old loose objects
  12 # If we waited until post-receive a gc could have already nuked them
  13 # We freshen the new ref in case it's being resurrected to protect it from gc
  14 # We probably do not need to do it for new refs as Git tries to do that,
  15 # but since we're already doing it for old refs (which Git does not do),
  16 # it's almost no extra work for new refs, just in case.  We also attempt
  17 # to make all packs user and group writable so they can be touched later.
  18
  19 octet='[0-9a-f][0-9a-f]'
  20 octet4="$octet$octet$octet$octet"
  21 octet20="$octet4$octet4$octet4$octet4$octet4"
  22 chmod ug+w objects/pack/pack-$octet20.pack 2>/dev/null || :
  23
  24 while read -r old new ref; do
  25         oldp=
  26         newp=
  27         if [ "$old" != "0000000000000000000000000000000000000000" ]; then
  28                 # freshen mod time on recently unref'd loose objects
  29                 fn="${old#??}"
  30                 shard="${old%$fn}"
  31                 oldp="objects/$shard/$fn"
  32         fi
  33         if [ "$new" != "0000000000000000000000000000000000000000" ]; then
  34                 # prevent imminent pruning of a ref being resurrected
  35                 fn="${new#??}"
  36                 shard="${new%$fn}"
  37                 newp="objects/$shard/$fn"
  38         fi
  39         chmod ug+w $oldp $newp 2>/dev/null || :
  40         touch -c $oldp $newp 2>/dev/null || :
  41 done