imap-send: support subjectAltName as well
[git/jnareb-git.git] / git-repack.sh
blob624feec26f66b15926ffa11767c146222bc9a185
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 F pass --no-reuse-object to git-pack-objects
15 n do not run git-update-server-info
16 q,quiet be quiet
17 l pass --local to git-pack-objects
18 Packing constraints
19 window= size of the window used for delta compression
20 window-memory= same as the above, but limit memory size instead of entries count
21 depth= limits the maximum delta depth
22 max-pack-size= maximum size of each packfile
24 SUBDIRECTORY_OK='Yes'
25 . git-sh-setup
27 no_update_info= all_into_one= remove_redundant= unpack_unreachable=
28 local= no_reuse= extra=
29 while test $# != 0
31 case "$1" in
32 -n) no_update_info=t ;;
33 -a) all_into_one=t ;;
34 -A) all_into_one=t
35 unpack_unreachable=--unpack-unreachable ;;
36 -d) remove_redundant=t ;;
37 -q) GIT_QUIET=t ;;
38 -f) no_reuse=--no-reuse-delta ;;
39 -F) no_reuse=--no-reuse-object ;;
40 -l) local=--local ;;
41 --max-pack-size|--window|--window-memory|--depth)
42 extra="$extra $1=$2"; shift ;;
43 --) shift; break;;
44 *) usage ;;
45 esac
46 shift
47 done
49 case "`git config --bool repack.usedeltabaseoffset || echo true`" in
50 true)
51 extra="$extra --delta-base-offset" ;;
52 esac
54 PACKDIR="$GIT_OBJECT_DIRECTORY/pack"
55 PACKTMP="$PACKDIR/.tmp-$$-pack"
56 rm -f "$PACKTMP"-*
57 trap 'rm -f "$PACKTMP"-*' 0 1 2 3 15
59 # There will be more repacking strategies to come...
60 case ",$all_into_one," in
61 ,,)
62 args='--unpacked --incremental'
64 ,t,)
65 args= existing=
66 if [ -d "$PACKDIR" ]; then
67 for e in `cd "$PACKDIR" && find . -type f -name '*.pack' \
68 | sed -e 's/^\.\///' -e 's/\.pack$//'`
70 if [ -e "$PACKDIR/$e.keep" ]; then
71 : keep
72 else
73 existing="$existing $e"
75 done
76 if test -n "$existing" -a -n "$unpack_unreachable" -a \
77 -n "$remove_redundant"
78 then
79 args="$args $unpack_unreachable"
83 esac
85 mkdir -p "$PACKDIR" || exit
87 args="$args $local ${GIT_QUIET:+-q} $no_reuse$extra"
88 names=$(git pack-objects --keep-true-parents --honor-pack-keep --non-empty --all --reflog $args </dev/null "$PACKTMP") ||
89 exit 1
90 if [ -z "$names" ]; then
91 say Nothing new to pack.
94 # Ok we have prepared all new packfiles.
96 # First see if there are packs of the same name and if so
97 # if we can move them out of the way (this can happen if we
98 # repacked immediately after packing fully.
99 rollback=
100 failed=
101 for name in $names
103 for sfx in pack idx
105 file=pack-$name.$sfx
106 test -f "$PACKDIR/$file" || continue
107 rm -f "$PACKDIR/old-$file" &&
108 mv "$PACKDIR/$file" "$PACKDIR/old-$file" || {
109 failed=t
110 break
112 rollback="$rollback $file"
113 done
114 test -z "$failed" || break
115 done
117 # If renaming failed for any of them, roll the ones we have
118 # already renamed back to their original names.
119 if test -n "$failed"
120 then
121 rollback_failure=
122 for file in $rollback
124 mv "$PACKDIR/old-$file" "$PACKDIR/$file" ||
125 rollback_failure="$rollback_failure $file"
126 done
127 if test -n "$rollback_failure"
128 then
129 echo >&2 "WARNING: Some packs in use have been renamed by"
130 echo >&2 "WARNING: prefixing old- to their name, in order to"
131 echo >&2 "WARNING: replace them with the new version of the"
132 echo >&2 "WARNING: file. But the operation failed, and"
133 echo >&2 "WARNING: attempt to rename them back to their"
134 echo >&2 "WARNING: original names also failed."
135 echo >&2 "WARNING: Please rename them in $PACKDIR manually:"
136 for file in $rollback_failure
138 echo >&2 "WARNING: old-$file -> $file"
139 done
141 exit 1
144 # Now the ones with the same name are out of the way...
145 fullbases=
146 for name in $names
148 fullbases="$fullbases pack-$name"
149 chmod a-w "$PACKTMP-$name.pack"
150 chmod a-w "$PACKTMP-$name.idx"
151 mv -f "$PACKTMP-$name.pack" "$PACKDIR/pack-$name.pack" &&
152 mv -f "$PACKTMP-$name.idx" "$PACKDIR/pack-$name.idx" ||
153 exit
154 done
156 # Remove the "old-" files
157 for name in $names
159 rm -f "$PACKDIR/old-pack-$name.idx"
160 rm -f "$PACKDIR/old-pack-$name.pack"
161 done
163 # End of pack replacement.
165 if test "$remove_redundant" = t
166 then
167 # We know $existing are all redundant.
168 if [ -n "$existing" ]
169 then
170 ( cd "$PACKDIR" &&
171 for e in $existing
173 case " $fullbases " in
174 *" $e "*) ;;
175 *) rm -f "$e.pack" "$e.idx" "$e.keep" ;;
176 esac
177 done
180 git prune-packed ${GIT_QUIET:+-q}
183 case "$no_update_info" in
184 t) : ;;
185 *) git update-server-info ;;
186 esac