Remove now unnecessary 'sync()' calls
[git/dscho.git] / git-repack.sh
blob072d1b40f7d71aa731c90e9af158a0fe5cf89fde
1 #!/bin/sh
3 # Copyright (c) 2005 Linus Torvalds
6 OPTIONS_KEEPDASHDASH=
7 OPTIONS_SPEC="\
8 git-repack [options]
9 --
10 a pack everything in a single pack
11 A same as -a, and turn unreachable objects loose
12 d remove redundant packs, and run git-prune-packed
13 f pass --no-reuse-delta to git-pack-objects
14 n do not run git-update-server-info
15 q,quiet be quiet
16 l pass --local to git-pack-objects
17 Packing constraints
18 window= size of the window used for delta compression
19 window-memory= same as the above, but limit memory size instead of entries count
20 depth= limits the maximum delta depth
21 max-pack-size= maximum size of each packfile
23 SUBDIRECTORY_OK='Yes'
24 . git-sh-setup
26 no_update_info= all_into_one= remove_redundant= unpack_unreachable=
27 local= quiet= no_reuse= extra=
28 while test $# != 0
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
45 done
47 # Later we will default repack.UseDeltaBaseOffset to true
48 default_dbo=false
50 case "`git config --bool repack.usedeltabaseoffset ||
51 echo $default_dbo`" in
52 true)
53 extra="$extra --delta-base-offset" ;;
54 esac
56 PACKDIR="$GIT_OBJECT_DIRECTORY/pack"
57 PACKTMP="$GIT_OBJECT_DIRECTORY/.tmp-$$-pack"
58 rm -f "$PACKTMP"-*
59 trap 'rm -f "$PACKTMP"-*' 0 1 2 3 15
61 # There will be more repacking strategies to come...
62 case ",$all_into_one," in
63 ,,)
64 args='--unpacked --incremental'
66 ,t,)
67 if [ -d "$PACKDIR" ]; then
68 for e in `cd "$PACKDIR" && find . -type f -name '*.pack' \
69 | sed -e 's/^\.\///' -e 's/\.pack$//'`
71 if [ -e "$PACKDIR/$e.keep" ]; then
72 : keep
73 else
74 args="$args --unpacked=$e.pack"
75 existing="$existing $e"
77 done
79 if test -z "$args"
80 then
81 args='--unpacked --incremental'
82 elif test -n "$unpack_unreachable"
83 then
84 args="$args $unpack_unreachable"
87 esac
89 args="$args $local $quiet $no_reuse$extra"
90 names=$(git pack-objects --non-empty --all --reflog $args </dev/null "$PACKTMP") ||
91 exit 1
92 if [ -z "$names" ]; then
93 if test -z "$quiet"; then
94 echo Nothing new to pack.
97 for name in $names ; do
98 fullbases="$fullbases pack-$name"
99 chmod a-w "$PACKTMP-$name.pack"
100 chmod a-w "$PACKTMP-$name.idx"
101 mkdir -p "$PACKDIR" || exit
103 for sfx in pack idx
105 if test -f "$PACKDIR/pack-$name.$sfx"
106 then
107 mv -f "$PACKDIR/pack-$name.$sfx" \
108 "$PACKDIR/old-pack-$name.$sfx"
110 done &&
111 mv -f "$PACKTMP-$name.pack" "$PACKDIR/pack-$name.pack" &&
112 mv -f "$PACKTMP-$name.idx" "$PACKDIR/pack-$name.idx" &&
113 test -f "$PACKDIR/pack-$name.pack" &&
114 test -f "$PACKDIR/pack-$name.idx" || {
115 echo >&2 "Couldn't replace the existing pack with updated one."
116 echo >&2 "The original set of packs have been saved as"
117 echo >&2 "old-pack-$name.{pack,idx} in $PACKDIR."
118 exit 1
120 rm -f "$PACKDIR/old-pack-$name.pack" "$PACKDIR/old-pack-$name.idx"
121 done
123 if test "$remove_redundant" = t
124 then
125 # We know $existing are all redundant.
126 if [ -n "$existing" ]
127 then
128 ( cd "$PACKDIR" &&
129 for e in $existing
131 case " $fullbases " in
132 *" $e "*) ;;
133 *) rm -f "$e.pack" "$e.idx" "$e.keep" ;;
134 esac
135 done
138 git prune-packed $quiet
141 case "$no_update_info" in
142 t) : ;;
143 *) git-update-server-info ;;
144 esac