jobd/gc-git-svn.sh

   1 #!/bin/sh
   2
   3 # Girocco installs a pre-auto-gc hook.
   4 # When $GIROCCO_DIVERT_GIT_SVN_AUTO_GC is set to 1
   5 # that hook, when executed, runs this script and
   6 # no matter what exit code this script uses, the
   7 # pre-auto-gc hook always exits with a code of 1
   8 # immediately after this script finishes thereby
   9 # aborting any Git-directed gc.
  10
  11 # The `git-svn fetch` operation periodically runs
  12 # `git gc --auto` which ultimately causes this
  13 # script to run provided the correct conditions
  14 # are met and $GIROCCO_DIVERT_GIT_SVN_AUTO_GC is
  15 # set to 1 in the environment.
  16
  17 # Both the jobd/update.sh and taskd/clone.sh scripts
  18 # set and export GIROCCO_DIVERT_GIT_SVN_AUTO_GC=1
  19 # and force `gc.auto=1` as well whenever they process
  20 # a `git-svn` mirror.
  21
  22 . @basedir@/shlib.sh
  23 . @basedir@/jobd/gc-util-functions.sh
  24
  25 set -e
  26
  27 [ -d objects ] || exit 1
  28
  29 v_get_proj_from_dir proj
  30 proj="${proj%.git}"
  31
  32 # packing options
  33 packopts="--depth=50 --window=50 --window-memory=${var_window_memory:-1g}"
  34 quiet="-q"; [ "${show_progress:-0}" = "0" ] || quiet=
  35
  36 # pack any existing, non-packed loose objects into a new _l.pack file then run prune-packed
  37 # note that prune-packed is NOT run beforehand -- the caller must do that if needed
  38 # loose objects need not be part of complete commits/trees as --weak-naming is used
  39 pack_incremental_loose_objects() {
  40         _lpacks="$(run_combine_packs </dev/null --names --loose --weak-naming --incremental --non-empty --all-progress-implied ${quiet:---progress} $packopts)"
  41         if [ -n "$_lpacks" ]; then
  42                 # We need to identify these packs later so we don't combine_packs them
  43                 for _objpack in $_lpacks; do
  44                         rename_pack "objects/pack/pack-$_objpack" "objects/pack/pack-${_objpack}_l" || :
  45                 done
  46                 git prune-packed $quiet
  47         fi
  48 }
  49
  50 if lotsa_loose_objects; then
  51         echo "Packing loose objects ($(date))"
  52         pack_incremental_loose_objects
  53         echo "Packing and pruning complete ($(date))"
  54 fi
  55
  56 exit 0