Andrew's git - gitweb.git/blob

   1#!/bin/sh
   2#
   3# Copyright (c) 2005 Linus Torvalds
   4#
   5
   6USAGE='[-a] [-d] [-f] [-l] [-n] [-q] [--window=N] [--depth=N]'
   7SUBDIRECTORY_OK='Yes'
   8. git-sh-setup
   9
  10no_update_info= all_into_one= remove_redundant=
  11local= quiet= no_reuse_delta= extra=
  12while case "$#" in 0) break ;; esac
  13do
  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
  26done
  27
  28# Later we will default repack.UseDeltaBaseOffset to true
  29default_dbo=false
  30
  31case "`git repo-config --bool repack.usedeltabaseoffset ||
  32       echo $default_dbo`" in
  33true)
  34        extra="$extra --delta-base-offset" ;;
  35esac
  36
  37PACKDIR="$GIT_OBJECT_DIRECTORY/pack"
  38PACKTMP="$GIT_DIR/.tmp-$$-pack"
  39rm -f "$PACKTMP"-*
  40trap 'rm -f "$PACKTMP"-*' 0 1 2 3 15
  41
  42# There will be more repacking strategies to come...
  43case ",$all_into_one," in
  44,,)
  45        args='--unpacked --incremental'
  46        ;;
  47,t,)
  48        args=
  49
  50        # Redundancy check in all-into-one case is trivial.
  51        existing=`test -d "$PACKDIR" && cd "$PACKDIR" && \
  52            find . -type f \( -name '*.pack' -o -name '*.idx' \) -print`
  53        ;;
  54esac
  55
  56args="$args $local $quiet $no_reuse_delta$extra"
  57name=$(git-pack-objects --non-empty --all $args </dev/null "$PACKTMP") ||
  58        exit 1
  59if [ -z "$name" ]; then
  60        echo Nothing new to pack.
  61else
  62        if test "$quiet" != '-q'; then
  63            echo "Pack pack-$name created."
  64        fi
  65        mkdir -p "$PACKDIR" || exit
  66
  67        for sfx in pack idx
  68        do
  69                if test -f "$PACKDIR/pack-$name.$sfx"
  70                then
  71                        mv -f "$PACKDIR/pack-$name.$sfx" \
  72                                "$PACKDIR/old-pack-$name.$sfx"
  73                fi
  74        done &&
  75        mv -f "$PACKTMP-$name.pack" "$PACKDIR/pack-$name.pack" &&
  76        mv -f "$PACKTMP-$name.idx"  "$PACKDIR/pack-$name.idx" &&
  77        test -f "$PACKDIR/pack-$name.pack" &&
  78        test -f "$PACKDIR/pack-$name.idx" || {
  79                echo >&2 "Couldn't replace the existing pack with updated one."
  80                echo >&2 "The original set of packs have been saved as"
  81                echo >&2 "old-pack-$name.{pack,idx} in $PACKDIR."
  82                exit 1
  83        }
  84        rm -f "$PACKDIR/old-pack-$name.pack" "$PACKDIR/old-pack-$name.idx"
  85fi
  86
  87if test "$remove_redundant" = t
  88then
  89        # We know $existing are all redundant only when
  90        # all-into-one is used.
  91        if test "$all_into_one" != '' && test "$existing" != ''
  92        then
  93                sync
  94                ( cd "$PACKDIR" &&
  95                  for e in $existing
  96                  do
  97                        case "$e" in
  98                        ./pack-$name.pack | ./pack-$name.idx) ;;
  99                        *)      rm -f $e ;;
 100                        esac
 101                  done
 102                )
 103        fi
 104        git-prune-packed
 105fi
 106
 107case "$no_update_info" in
 108t) : ;;
 109*) git-update-server-info ;;
 110esac