Reject hexstring longer than 40-bytes in get_short_sha1()
[git] / git-repack.sh
1 #!/bin/sh
2 #
3 # Copyright (c) 2005 Linus Torvalds
4 #
5
6 USAGE='[-a] [-d] [-f] [-l] [-n] [-q]'
7 SUBDIRECTORY_OK='Yes'
8 . git-sh-setup
9
10 no_update_info= all_into_one= remove_redundant=
11 local= quiet= no_reuse_delta= extra=
12 while case "$#" in 0) break ;; esac
13 do
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 $1" ;;
23         *)      usage ;;
24         esac
25         shift
26 done
27
28 PACKDIR="$GIT_OBJECT_DIRECTORY/pack"
29 PACKTMP="$GIT_DIR/.tmp-$$-pack"
30 rm -f "$PACKTMP"-*
31 trap 'rm -f "$PACKTMP"-*' 0 1 2 3 15
32
33 # There will be more repacking strategies to come...
34 case ",$all_into_one," in
35 ,,)
36         args='--unpacked --incremental'
37         ;;
38 ,t,)
39         args=
40
41         # Redundancy check in all-into-one case is trivial.
42         existing=`test -d "$PACKDIR" && cd "$PACKDIR" && \
43             find . -type f \( -name '*.pack' -o -name '*.idx' \) -print`
44         ;;
45 esac
46
47 args="$args $local $quiet $no_reuse_delta$extra"
48 name=$(git-pack-objects --non-empty --all $args </dev/null "$PACKTMP") ||
49         exit 1
50 if [ -z "$name" ]; then
51         echo Nothing new to pack.
52 else
53         if test "$quiet" != '-q'; then
54             echo "Pack pack-$name created."
55         fi
56         mkdir -p "$PACKDIR" || exit
57
58         for sfx in pack idx
59         do
60                 if test -f "$PACKDIR/pack-$name.$sfx"
61                 then
62                         mv -f "$PACKDIR/pack-$name.$sfx" \
63                                 "$PACKDIR/old-pack-$name.$sfx"
64                 fi
65         done &&
66         mv -f "$PACKTMP-$name.pack" "$PACKDIR/pack-$name.pack" &&
67         mv -f "$PACKTMP-$name.idx"  "$PACKDIR/pack-$name.idx" &&
68         test -f "$PACKDIR/pack-$name.pack" &&
69         test -f "$PACKDIR/pack-$name.idx" || {
70                 echo >&2 "Couldn't replace the existing pack with updated one."
71                 echo >&2 "The original set of packs have been saved as"
72                 echo >&2 "old-pack-$name.{pack,idx} in $PACKDIR."
73                 exit 1
74         }
75         rm -f "$PACKDIR/old-pack-$name.pack" "$PACKDIR/old-pack-$name.idx"
76 fi
77
78 if test "$remove_redundant" = t
79 then
80         # We know $existing are all redundant only when
81         # all-into-one is used.
82         if test "$all_into_one" != '' && test "$existing" != ''
83         then
84                 sync
85                 ( cd "$PACKDIR" &&
86                   for e in $existing
87                   do
88                         case "$e" in
89                         ./pack-$name.pack | ./pack-$name.idx) ;;
90                         *)      rm -f $e ;;
91                         esac
92                   done
93                 )
94         fi
95         git-prune-packed
96 fi
97
98 case "$no_update_info" in
99 t) : ;;
100 *) git-update-server-info ;;
101 esac