git-repack.sh

   1 #!/bin/sh
   2 #
   3 # Copyright (c) 2005 Linus Torvalds
   4 #
   5
   6 USAGE='[-a] [-d] [-f] [-l] [-n] [-q]'
   7 SUBDIRECTORY_OK='Yes'
   8 . git-sh-setup
   9
  10 no_update_info= all_into_one= remove_redundant=
  11 local= quiet= no_reuse_delta= extra=
  12 while case "$#" in 0) break ;; esac
  13 do
  14         case "$1" in
  15         -n)     no_update_info=t ;;
  16         -a)     all_into_one=t ;;
  17         -d)     remove_redundant=t ;;
  18         -q)     quiet=-q ;;
  19         -f)     no_reuse_delta=--no-reuse-delta ;;
  20         -l)     local=--local ;;
  21         --window=*) extra="$extra $1" ;;
  22         --depth=*) extra="$extra $1" ;;
  23         *)      usage ;;
  24         esac
  25         shift
  26 done
  27
  28 PACKDIR="$GIT_OBJECT_DIRECTORY/pack"
  29 PACKTMP="$GIT_DIR/.tmp-$$-pack"
  30 rm -f "$PACKTMP"-*
  31 trap 'rm -f "$PACKTMP"-*' 0 1 2 3 15
  32
  33 # There will be more repacking strategies to come...
  34 case ",$all_into_one," in
  35 ,,)
  36         args='--unpacked --incremental'
  37         ;;
  38 ,t,)
  39         args=
  40
  41         # Redundancy check in all-into-one case is trivial.
  42         existing=`test -d "$PACKDIR" && cd "$PACKDIR" && \
  43             find . -type f \( -name '*.pack' -o -name '*.idx' \) -print`
  44         ;;
  45 esac
  46
  47 args="$args $local $quiet $no_reuse_delta$extra"
  48 name=$(git-pack-objects --non-empty --all $args </dev/null "$PACKTMP") ||
  49         exit 1
  50 if [ -z "$name" ]; then
  51         echo Nothing new to pack.
  52 else
  53         if test "$quiet" != '-q'; then
  54             echo "Pack pack-$name created."
  55         fi
  56         mkdir -p "$PACKDIR" || exit
  57
  58         for sfx in pack idx
  59         do
  60                 if test -f "$PACKDIR/pack-$name.$sfx"
  61                 then
  62                         mv -f "$PACKDIR/pack-$name.$sfx" \
  63                                 "$PACKDIR/old-pack-$name.$sfx"
  64                 fi
  65         done &&
  66         mv -f "$PACKTMP-$name.pack" "$PACKDIR/pack-$name.pack" &&
  67         mv -f "$PACKTMP-$name.idx"  "$PACKDIR/pack-$name.idx" &&
  68         test -f "$PACKDIR/pack-$name.pack" &&
  69         test -f "$PACKDIR/pack-$name.idx" || {
  70                 echo >&2 "Couldn't replace the existing pack with updated one."
  71                 echo >&2 "The original set of packs have been saved as"
  72                 echo >&2 "old-pack-$name.{pack,idx} in $PACKDIR."
  73                 exit 1
  74         }
  75         rm -f "$PACKDIR/old-pack-$name.pack" "$PACKDIR/old-pack-$name.idx"
  76 fi
  77
  78 if test "$remove_redundant" = t
  79 then
  80         # We know $existing are all redundant only when
  81         # all-into-one is used.
  82         if test "$all_into_one" != '' && test "$existing" != ''
  83         then
  84                 sync
  85                 ( cd "$PACKDIR" &&
  86                   for e in $existing
  87                   do
  88                         case "$e" in
  89                         ./pack-$name.pack | ./pack-$name.idx) ;;
  90                         *)      rm -f $e ;;
  91                         esac
  92                   done
  93                 )
  94         fi
  95         git-prune-packed
  96 fi
  97
  98 case "$no_update_info" in
  99 t) : ;;
 100 *) git-update-server-info ;;
 101 esac