1
0
Fork 0
mirror of https://github.com/git/git.git synced 2024-11-08 18:23:01 +01:00
git/git-repack.sh
Nicolas Pitre 22c79eab29 repack.usedeltabaseoffset config option now defaults to "true"
As announced for 1.6.0.

Access over the native protocol by old git versions is unaffected as
this capability is negociated by the protocol.  Otherwise setting this
config option to "false" and doing a 'git repack -a -d' is enough to
remain compatible with ancient git versions (older than 1.4.4).

Signed-off-by: Nicolas Pitre <nico@cam.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-06-25 10:56:40 -07:00

140 lines
3.3 KiB
Bash
Executable file

#!/bin/sh
#
# Copyright (c) 2005 Linus Torvalds
#
OPTIONS_KEEPDASHDASH=
OPTIONS_SPEC="\
git-repack [options]
--
a pack everything in a single pack
A same as -a, and turn unreachable objects loose
d remove redundant packs, and run git-prune-packed
f pass --no-reuse-delta to git-pack-objects
n do not run git-update-server-info
q,quiet be quiet
l pass --local to git-pack-objects
Packing constraints
window= size of the window used for delta compression
window-memory= same as the above, but limit memory size instead of entries count
depth= limits the maximum delta depth
max-pack-size= maximum size of each packfile
"
SUBDIRECTORY_OK='Yes'
. git-sh-setup
no_update_info= all_into_one= remove_redundant= unpack_unreachable=
local= quiet= no_reuse= extra=
while test $# != 0
do
case "$1" in
-n) no_update_info=t ;;
-a) all_into_one=t ;;
-A) all_into_one=t
unpack_unreachable=--unpack-unreachable ;;
-d) remove_redundant=t ;;
-q) quiet=-q ;;
-f) no_reuse=--no-reuse-object ;;
-l) local=--local ;;
--max-pack-size|--window|--window-memory|--depth)
extra="$extra $1=$2"; shift ;;
--) shift; break;;
*) usage ;;
esac
shift
done
case "`git config --bool repack.usedeltabaseoffset || echo true`" in
true)
extra="$extra --delta-base-offset" ;;
esac
PACKDIR="$GIT_OBJECT_DIRECTORY/pack"
PACKTMP="$GIT_OBJECT_DIRECTORY/.tmp-$$-pack"
rm -f "$PACKTMP"-*
trap 'rm -f "$PACKTMP"-*' 0 1 2 3 15
# There will be more repacking strategies to come...
case ",$all_into_one," in
,,)
args='--unpacked --incremental'
;;
,t,)
if [ -d "$PACKDIR" ]; then
for e in `cd "$PACKDIR" && find . -type f -name '*.pack' \
| sed -e 's/^\.\///' -e 's/\.pack$//'`
do
if [ -e "$PACKDIR/$e.keep" ]; then
: keep
else
args="$args --unpacked=$e.pack"
existing="$existing $e"
fi
done
fi
if test -z "$args"
then
args='--unpacked --incremental'
elif test -n "$unpack_unreachable"
then
args="$args $unpack_unreachable"
fi
;;
esac
args="$args $local $quiet $no_reuse$extra"
names=$(git pack-objects --non-empty --all --reflog $args </dev/null "$PACKTMP") ||
exit 1
if [ -z "$names" ]; then
if test -z "$quiet"; then
echo Nothing new to pack.
fi
fi
for name in $names ; do
fullbases="$fullbases pack-$name"
chmod a-w "$PACKTMP-$name.pack"
chmod a-w "$PACKTMP-$name.idx"
mkdir -p "$PACKDIR" || exit
for sfx in pack idx
do
if test -f "$PACKDIR/pack-$name.$sfx"
then
mv -f "$PACKDIR/pack-$name.$sfx" \
"$PACKDIR/old-pack-$name.$sfx"
fi
done &&
mv -f "$PACKTMP-$name.pack" "$PACKDIR/pack-$name.pack" &&
mv -f "$PACKTMP-$name.idx" "$PACKDIR/pack-$name.idx" &&
test -f "$PACKDIR/pack-$name.pack" &&
test -f "$PACKDIR/pack-$name.idx" || {
echo >&2 "Couldn't replace the existing pack with updated one."
echo >&2 "The original set of packs have been saved as"
echo >&2 "old-pack-$name.{pack,idx} in $PACKDIR."
exit 1
}
rm -f "$PACKDIR/old-pack-$name.pack" "$PACKDIR/old-pack-$name.idx"
done
if test "$remove_redundant" = t
then
# We know $existing are all redundant.
if [ -n "$existing" ]
then
( cd "$PACKDIR" &&
for e in $existing
do
case " $fullbases " in
*" $e "*) ;;
*) rm -f "$e.pack" "$e.idx" "$e.keep" ;;
esac
done
)
fi
git prune-packed $quiet
fi
case "$no_update_info" in
t) : ;;
*) git-update-server-info ;;
esac