Andrew's git - gitweb.git/blob

b525fc5dfd9053a6fb63a4d38517e25e75341199
   1#!/bin/sh
   2#
   3# Copyright (c) 2005 Linus Torvalds
   4#
   5
   6USAGE='[-a] [-d] [-f] [-l] [-n] [-q]'
   7. git-sh-setup
   8
   9no_update_info= all_into_one= remove_redundant=
  10local= quiet= no_reuse_delta= extra=
  11while case "$#" in 0) break ;; esac
  12do
  13        case "$1" in
  14        -n)     no_update_info=t ;;
  15        -a)     all_into_one=t ;;
  16        -d)     remove_redundant=t ;;
  17        -q)     quiet=-q ;;
  18        -f)     no_reuse_delta=--no-reuse-delta ;;
  19        -l)     local=--local ;;
  20        --window=*) extra="$extra $1" ;;
  21        --depth=*) extra="$extra $1" ;;
  22        *)      usage ;;
  23        esac
  24        shift
  25done
  26
  27PACKDIR="$GIT_OBJECT_DIRECTORY/pack"
  28PACKTMP="$GIT_DIR/.tmp-$$-pack"
  29rm -f "$PACKTMP"-*
  30trap 'rm -f "$PACKTMP"-*' 0 1 2 3 15
  31
  32# There will be more repacking strategies to come...
  33case ",$all_into_one," in
  34,,)
  35        rev_list='--unpacked'
  36        pack_objects='--incremental'
  37        ;;
  38,t,)
  39        rev_list=
  40        pack_objects=
  41
  42        # Redundancy check in all-into-one case is trivial.
  43        existing=`test -d "$PACKDIR" && cd "$PACKDIR" && \
  44            find . -type f \( -name '*.pack' -o -name '*.idx' \) -print`
  45        ;;
  46esac
  47
  48pack_objects="$pack_objects $local $quiet $no_reuse_delta$extra"
  49name=$( { git-rev-list --objects --all $rev_list ||
  50          echo "git-rev-list died with exit code $?"
  51        } |
  52        git-pack-objects --non-empty $pack_objects "$PACKTMP") ||
  53        exit 1
  54if [ -z "$name" ]; then
  55        echo Nothing new to pack.
  56else
  57        if test "$quiet" != '-q'; then
  58            echo "Pack pack-$name created."
  59        fi
  60        mkdir -p "$PACKDIR" || exit
  61
  62        for sfx in pack idx
  63        do
  64                if test -f "$PACKDIR/pack-$name.$sfx"
  65                then
  66                        mv -f "$PACKDIR/pack-$name.$sfx" \
  67                                "$PACKDIR/old-pack-$name.$sfx"
  68                fi
  69        done &&
  70        mv -f "$PACKTMP-$name.pack" "$PACKDIR/pack-$name.pack" &&
  71        mv -f "$PACKTMP-$name.idx"  "$PACKDIR/pack-$name.idx" &&
  72        test -f "$PACKDIR/pack-$name.pack" &&
  73        test -f "$PACKDIR/pack-$name.idx" || {
  74                echo >&2 "Couldn't replace the existing pack with updated one."
  75                echo >&2 "The original set of packs have been saved as"
  76                echo >&2 "old-pack-$name.{pack,idx} in $PACKDIR."
  77                exit 1
  78        }
  79        rm -f "$PACKDIR/old-pack-$name.pack" "$PACKDIR/old-pack-$name.idx"
  80fi
  81
  82if test "$remove_redundant" = t
  83then
  84        # We know $existing are all redundant only when
  85        # all-into-one is used.
  86        if test "$all_into_one" != '' && test "$existing" != ''
  87        then
  88                sync
  89                ( cd "$PACKDIR" &&
  90                  for e in $existing
  91                  do
  92                        case "$e" in
  93                        ./pack-$name.pack | ./pack-$name.idx) ;;
  94                        *)      rm -f $e ;;
  95                        esac
  96                  done
  97                )
  98        fi
  99        git-prune-packed
 100fi
 101
 102case "$no_update_info" in
 103t) : ;;
 104*) git-update-server-info ;;
 105esac