Andrew's git - gitweb.git/blob

   1#!/bin/sh
   2#
   3# Copyright (c) 2005 Linus Torvalds
   4#
   5
   6OPTIONS_KEEPDASHDASH=
   7OPTIONS_SPEC="\
   8git-repack [options]
   9--
  10a               pack everything in a single pack
  11A               same as -a, and turn unreachable objects loose
  12d               remove redundant packs, and run git-prune-packed
  13f               pass --no-reuse-delta to git-pack-objects
  14n               do not run git-update-server-info
  15q,quiet         be quiet
  16l               pass --local to git-pack-objects
  17 Packing constraints
  18window=         size of the window used for delta compression
  19window-memory=  same as the above, but limit memory size instead of entries count
  20depth=          limits the maximum delta depth
  21max-pack-size=  maximum size of each packfile
  22"
  23SUBDIRECTORY_OK='Yes'
  24. git-sh-setup
  25
  26no_update_info= all_into_one= remove_redundant= unpack_unreachable=
  27local= quiet= no_reuse= extra=
  28while test $# != 0
  29do
  30        case "$1" in
  31        -n)     no_update_info=t ;;
  32        -a)     all_into_one=t ;;
  33        -A)     all_into_one=t
  34                unpack_unreachable=--unpack-unreachable ;;
  35        -d)     remove_redundant=t ;;
  36        -q)     quiet=-q ;;
  37        -f)     no_reuse=--no-reuse-object ;;
  38        -l)     local=--local ;;
  39        --max-pack-size|--window|--window-memory|--depth)
  40                extra="$extra $1=$2"; shift ;;
  41        --) shift; break;;
  42        *)      usage ;;
  43        esac
  44        shift
  45done
  46
  47# Later we will default repack.UseDeltaBaseOffset to true
  48default_dbo=false
  49
  50case "`git config --bool repack.usedeltabaseoffset ||
  51       echo $default_dbo`" in
  52true)
  53        extra="$extra --delta-base-offset" ;;
  54esac
  55
  56PACKDIR="$GIT_OBJECT_DIRECTORY/pack"
  57PACKTMP="$GIT_OBJECT_DIRECTORY/.tmp-$$-pack"
  58rm -f "$PACKTMP"-*
  59trap 'rm -f "$PACKTMP"-*' 0 1 2 3 15
  60
  61# There will be more repacking strategies to come...
  62case ",$all_into_one," in
  63,,)
  64        args='--unpacked --incremental'
  65        ;;
  66,t,)
  67        if [ -d "$PACKDIR" ]; then
  68                for e in `cd "$PACKDIR" && find . -type f -name '*.pack' \
  69                        | sed -e 's/^\.\///' -e 's/\.pack$//'`
  70                do
  71                        if [ -e "$PACKDIR/$e.keep" ]; then
  72                                : keep
  73                        else
  74                                args="$args --unpacked=$e.pack"
  75                                existing="$existing $e"
  76                        fi
  77                done
  78        fi
  79        if test -z "$args"
  80        then
  81                args='--unpacked --incremental'
  82        elif test -n "$unpack_unreachable"
  83        then
  84                args="$args $unpack_unreachable"
  85        fi
  86        ;;
  87esac
  88
  89args="$args $local $quiet $no_reuse$extra"
  90names=$(git pack-objects --non-empty --all --reflog $args </dev/null "$PACKTMP") ||
  91        exit 1
  92if [ -z "$names" ]; then
  93        if test -z "$quiet"; then
  94                echo Nothing new to pack.
  95        fi
  96fi
  97for name in $names ; do
  98        fullbases="$fullbases pack-$name"
  99        chmod a-w "$PACKTMP-$name.pack"
 100        chmod a-w "$PACKTMP-$name.idx"
 101        mkdir -p "$PACKDIR" || exit
 102
 103        for sfx in pack idx
 104        do
 105                if test -f "$PACKDIR/pack-$name.$sfx"
 106                then
 107                        mv -f "$PACKDIR/pack-$name.$sfx" \
 108                                "$PACKDIR/old-pack-$name.$sfx"
 109                fi
 110        done &&
 111        mv -f "$PACKTMP-$name.pack" "$PACKDIR/pack-$name.pack" &&
 112        mv -f "$PACKTMP-$name.idx"  "$PACKDIR/pack-$name.idx" &&
 113        test -f "$PACKDIR/pack-$name.pack" &&
 114        test -f "$PACKDIR/pack-$name.idx" || {
 115                echo >&2 "Couldn't replace the existing pack with updated one."
 116                echo >&2 "The original set of packs have been saved as"
 117                echo >&2 "old-pack-$name.{pack,idx} in $PACKDIR."
 118                exit 1
 119        }
 120        rm -f "$PACKDIR/old-pack-$name.pack" "$PACKDIR/old-pack-$name.idx"
 121done
 122
 123if test "$remove_redundant" = t
 124then
 125        # We know $existing are all redundant.
 126        if [ -n "$existing" ]
 127        then
 128                sync
 129                ( cd "$PACKDIR" &&
 130                  for e in $existing
 131                  do
 132                        case " $fullbases " in
 133                        *" $e "*) ;;
 134                        *)      rm -f "$e.pack" "$e.idx" "$e.keep" ;;
 135                        esac
 136                  done
 137                )
 138        fi
 139        git prune-packed $quiet
 140fi
 141
 142case "$no_update_info" in
 143t) : ;;
 144*) git-update-server-info ;;
 145esac