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=$2"; shift ;;
  41        --) shift; break;;
  42        *)      usage ;;
  43        esac
  44        shift
  45done
  46
  47case "`git config --bool repack.usedeltabaseoffset || echo true`" in
  48true)
  49        extra="$extra --delta-base-offset" ;;
  50esac
  51
  52PACKDIR="$GIT_OBJECT_DIRECTORY/pack"
  53PACKTMP="$GIT_OBJECT_DIRECTORY/.tmp-$$-pack"
  54rm -f "$PACKTMP"-*
  55trap 'rm -f "$PACKTMP"-*' 0 1 2 3 15
  56
  57# There will be more repacking strategies to come...
  58case ",$all_into_one," in
  59,,)
  60        args='--unpacked --incremental'
  61        ;;
  62,t,)
  63        if [ -d "$PACKDIR" ]; then
  64                for e in `cd "$PACKDIR" && find . -type f -name '*.pack' \
  65                        | sed -e 's/^\.\///' -e 's/\.pack$//'`
  66                do
  67                        if [ -e "$PACKDIR/$e.keep" ]; then
  68                                : keep
  69                        else
  70                                args="$args --unpacked=$e.pack"
  71                                existing="$existing $e"
  72                        fi
  73                done
  74        fi
  75        if test -z "$args"
  76        then
  77                args='--unpacked --incremental'
  78        elif test -n "$unpack_unreachable"
  79        then
  80                args="$args $unpack_unreachable"
  81        fi
  82        ;;
  83esac
  84
  85args="$args $local $quiet $no_reuse$extra"
  86names=$(git pack-objects --non-empty --all --reflog $args </dev/null "$PACKTMP") ||
  87        exit 1
  88if [ -z "$names" ]; then
  89        if test -z "$quiet"; then
  90                echo Nothing new to pack.
  91        fi
  92fi
  93for name in $names ; do
  94        fullbases="$fullbases pack-$name"
  95        chmod a-w "$PACKTMP-$name.pack"
  96        chmod a-w "$PACKTMP-$name.idx"
  97        mkdir -p "$PACKDIR" || exit
  98
  99        for sfx in pack idx
 100        do
 101                if test -f "$PACKDIR/pack-$name.$sfx"
 102                then
 103                        mv -f "$PACKDIR/pack-$name.$sfx" \
 104                                "$PACKDIR/old-pack-$name.$sfx"
 105                fi
 106        done &&
 107        mv -f "$PACKTMP-$name.pack" "$PACKDIR/pack-$name.pack" &&
 108        mv -f "$PACKTMP-$name.idx"  "$PACKDIR/pack-$name.idx" &&
 109        test -f "$PACKDIR/pack-$name.pack" &&
 110        test -f "$PACKDIR/pack-$name.idx" || {
 111                echo >&2 "Couldn't replace the existing pack with updated one."
 112                echo >&2 "The original set of packs have been saved as"
 113                echo >&2 "old-pack-$name.{pack,idx} in $PACKDIR."
 114                exit 1
 115        }
 116        rm -f "$PACKDIR/old-pack-$name.pack" "$PACKDIR/old-pack-$name.idx"
 117done
 118
 119if test "$remove_redundant" = t
 120then
 121        # We know $existing are all redundant.
 122        if [ -n "$existing" ]
 123        then
 124                ( cd "$PACKDIR" &&
 125                  for e in $existing
 126                  do
 127                        case " $fullbases " in
 128                        *" $e "*) ;;
 129                        *)      rm -f "$e.pack" "$e.idx" "$e.keep" ;;
 130                        esac
 131                  done
 132                )
 133        fi
 134        git prune-packed $quiet
 135fi
 136
 137case "$no_update_info" in
 138t) : ;;
 139*) git-update-server-info ;;
 140esac