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-object 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 $e"
  72                        fi
  73                done
  74                if test -n "$args" -a -n "$unpack_unreachable" -a \
  75                        -n "$remove_redundant"
  76                then
  77                        args="$args $unpack_unreachable"
  78                fi
  79        fi
  80        ;;
  81esac
  82
  83args="$args $local $quiet $no_reuse$extra"
  84names=$(git pack-objects --honor-pack-keep --non-empty --all --reflog $args </dev/null "$PACKTMP") ||
  85        exit 1
  86if [ -z "$names" ]; then
  87        if test -z "$quiet"; then
  88                echo Nothing new to pack.
  89        fi
  90fi
  91for name in $names ; do
  92        fullbases="$fullbases pack-$name"
  93        chmod a-w "$PACKTMP-$name.pack"
  94        chmod a-w "$PACKTMP-$name.idx"
  95        mkdir -p "$PACKDIR" || exit
  96
  97        for sfx in pack idx
  98        do
  99                if test -f "$PACKDIR/pack-$name.$sfx"
 100                then
 101                        mv -f "$PACKDIR/pack-$name.$sfx" \
 102                                "$PACKDIR/old-pack-$name.$sfx"
 103                fi
 104        done &&
 105        mv -f "$PACKTMP-$name.pack" "$PACKDIR/pack-$name.pack" &&
 106        mv -f "$PACKTMP-$name.idx"  "$PACKDIR/pack-$name.idx" &&
 107        test -f "$PACKDIR/pack-$name.pack" &&
 108        test -f "$PACKDIR/pack-$name.idx" || {
 109                echo >&2 "Couldn't replace the existing pack with updated one."
 110                echo >&2 "The original set of packs have been saved as"
 111                echo >&2 "old-pack-$name.{pack,idx} in $PACKDIR."
 112                exit 1
 113        }
 114        rm -f "$PACKDIR/old-pack-$name.pack" "$PACKDIR/old-pack-$name.idx"
 115done
 116
 117if test "$remove_redundant" = t
 118then
 119        # We know $existing are all redundant.
 120        if [ -n "$existing" ]
 121        then
 122                ( cd "$PACKDIR" &&
 123                  for e in $existing
 124                  do
 125                        case " $fullbases " in
 126                        *" $e "*) ;;
 127                        *)      rm -f "$e.pack" "$e.idx" "$e.keep" ;;
 128                        esac
 129                  done
 130                )
 131        fi
 132        git prune-packed $quiet
 133fi
 134
 135case "$no_update_info" in
 136t) : ;;
 137*) git-update-server-info ;;
 138esac