Andrew's git / gitweb.git /
86000151ccbe259132c6cf25d6c23e3f763aba06
   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 ",$all_into_one," in
  59,,)
  60        args='--unpacked --incremental'
  61        ;;
  62,t,)
  63        args= existing=
  64        if [ -d "$PACKDIR" ]; then
  65                for e in `cd "$PACKDIR" && find . -type f -name '*.pack' \
  66                        | sed -e 's/^\.\///' -e 's/\.pack$//'`
  67                do
  68                        if [ -e "$PACKDIR/$e.keep" ]; then
  69                                : keep
  70                        else
  71                                args="$args --unpacked=$e.pack"
  72                                existing="$existing $e"
  73                        fi
  74                done
  75                if test -n "$args" -a -n "$unpack_unreachable" -a \
  76                        -n "$remove_redundant"
  77                then
  78                        args="$args $unpack_unreachable"
  79                fi
  80        fi
  81        ;;
  82esac
  83
  84args="$args $local $quiet $no_reuse$extra"
  85names=$(git pack-objects --honor-pack-keep --non-empty --all --reflog $args </dev/null "$PACKTMP") ||
  86        exit 1
  87if [ -z "$names" ]; then
  88        if test -z "$quiet"; then
  89                echo Nothing new to pack.
  90        fi
  91fi
  92for name in $names ; do
  93        fullbases="$fullbases pack-$name"
  94        chmod a-w "$PACKTMP-$name.pack"
  95        chmod a-w "$PACKTMP-$name.idx"
  96        mkdir -p "$PACKDIR" || exit
  97
  98        for sfx in pack idx
  99        do
 100                if test -f "$PACKDIR/pack-$name.$sfx"
 101                then
 102                        mv -f "$PACKDIR/pack-$name.$sfx" \
 103                                "$PACKDIR/old-pack-$name.$sfx"
 104                fi
 105        done &&
 106        mv -f "$PACKTMP-$name.pack" "$PACKDIR/pack-$name.pack" &&
 107        mv -f "$PACKTMP-$name.idx"  "$PACKDIR/pack-$name.idx" &&
 108        test -f "$PACKDIR/pack-$name.pack" &&
 109        test -f "$PACKDIR/pack-$name.idx" || {
 110                echo >&2 "Couldn't replace the existing pack with updated one."
 111                echo >&2 "The original set of packs have been saved as"
 112                echo >&2 "old-pack-$name.{pack,idx} in $PACKDIR."
 113                exit 1
 114        }
 115        rm -f "$PACKDIR/old-pack-$name.pack" "$PACKDIR/old-pack-$name.idx"
 116done
 117
 118if test "$remove_redundant" = t
 119then
 120        # We know $existing are all redundant.
 121        if [ -n "$existing" ]
 122        then
 123                ( cd "$PACKDIR" &&
 124                  for e in $existing
 125                  do
 126                        case " $fullbases " in
 127                        *" $e "*) ;;
 128                        *)      rm -f "$e.pack" "$e.idx" "$e.keep" ;;
 129                        esac
 130                  done
 131                )
 132        fi
 133        git prune-packed $quiet
 134fi
 135
 136case "$no_update_info" in
 137t) : ;;
 138*) git-update-server-info ;;
 139esac