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#!/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 F pass --no-reuse-object to git-pack-objects n do not run git-update-server-info q,quiet be quiet l pass --local to git-pack-objects unpack-unreachable= with -A, do not loosen objects older than this 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= 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 ;; --unpack-unreachable) unpack_unreachable="--unpack-unreachable=$2"; shift ;; -d) remove_redundant=t ;; -q) GIT_QUIET=t ;; -f) no_reuse=--no-reuse-delta ;; -F) no_reuse=--no-reuse-object ;; -l) local=--local ;; --max-pack-size|--window|--window-memory|--depth) extra="$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="$GIT_OBJECT_DIRECTORY/pack" PACKTMP="$PACKDIR/.tmp-$$-pack" rm -f "$PACKTMP"-* trap 'rm -f "$PACKTMP"-*' 0 1 2 3 15 # There will be more repacking strategies to come... case ",$all_into_one," in ,,) args='--unpacked --incremental' ;; ,t,) args= existing= if [ -d "$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 existing="$existing $e" fi done if test -n "$existing" -a -n "$unpack_unreachable" -a \ -n "$remove_redundant" then # This may have arbitrary user arguments, so we # have to protect it against whitespace splitting # when it gets run as "pack-objects $args" later. # Fortunately, we know it's an approxidate, so we # can just use dots instead. args="$args $(echo "$unpack_unreachable" | tr ' ' .)" fi fi ;; esac mkdir -p "$PACKDIR" || exit args="$args $local ${GIT_QUIET:+-q} $no_reuse$extra" names=$(git pack-objects --keep-true-parents --honor-pack-keep --non-empty --all --reflog $args </dev/null "$PACKTMP") || exit 1 if [ -z "$names" ]; then say Nothing new to pack. fi # Ok we have prepared all new packfiles. # First see if there are packs of the same name and if so # if we can move them out of the way (this can happen if we # repacked immediately after packing fully. rollback= failed= for name in $names do for sfx in pack idx do file=pack-$name.$sfx test -f "$PACKDIR/$file" || continue rm -f "$PACKDIR/old-$file" && mv "$PACKDIR/$file" "$PACKDIR/old-$file" || { failed=t break } rollback="$rollback $file" done test -z "$failed" || break done # If renaming failed for any of them, roll the ones we have # already renamed back to their original names. if test -n "$failed" then rollback_failure= for file in $rollback do mv "$PACKDIR/old-$file" "$PACKDIR/$file" || rollback_failure="$rollback_failure $file" done if test -n "$rollback_failure" then echo >&2 "WARNING: Some packs in use have been renamed by" echo >&2 "WARNING: prefixing old- to their name, in order to" echo >&2 "WARNING: replace them with the new version of the" echo >&2 "WARNING: file. But the operation failed, and" echo >&2 "WARNING: attempt to rename them back to their" echo >&2 "WARNING: original names also failed." echo >&2 "WARNING: Please rename them in $PACKDIR manually:" for file in $rollback_failure do echo >&2 "WARNING: old-$file -> $file" done fi exit 1 fi # Now the ones with the same name are out of the way... fullbases= for name in $names do fullbases="$fullbases pack-$name" chmod a-w "$PACKTMP-$name.pack" chmod a-w "$PACKTMP-$name.idx" mv -f "$PACKTMP-$name.pack" "$PACKDIR/pack-$name.pack" && mv -f "$PACKTMP-$name.idx" "$PACKDIR/pack-$name.idx" || exit done # Remove the "old-" files for name in $names do rm -f "$PACKDIR/old-pack-$name.idx" rm -f "$PACKDIR/old-pack-$name.pack" done # End of pack replacement. if test "$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 ${GIT_QUIET:+-q} fi case "$no_update_info" in t) : ;; *) git update-server-info ;; esac