diff options
Diffstat (limited to 'git-repack.sh')
| -rwxr-xr-x | git-repack.sh | 107 |
1 files changed, 76 insertions, 31 deletions
diff --git a/git-repack.sh b/git-repack.sh index 683960b04d..0868734723 100755 --- a/git-repack.sh +++ b/git-repack.sh @@ -10,7 +10,7 @@ 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 @@ -60,6 +60,7 @@ case ",$all_into_one," in args='--unpacked --incremental' ;; ,t,) + args= existing= if [ -d "$PACKDIR" ]; then for e in `cd "$PACKDIR" && find . -type f -name '*.pack' \ | sed -e 's/^\.\///' -e 's/\.pack$//'` @@ -67,55 +68,99 @@ case ",$all_into_one," in if [ -e "$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 $unpack_unreachable" + if test -n "$existing" -a -n "$unpack_unreachable" -a \ + -n "$remove_redundant" + then + args="$args $unpack_unreachable" + fi fi ;; esac args="$args $local $quiet $no_reuse$extra" -names=$(git pack-objects --non-empty --all --reflog $args </dev/null "$PACKTMP") || +names=$(git pack-objects --honor-pack-keep --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 +# Ok we have prepared all new packfiles. +mkdir -p "$PACKDIR" || exit + +# 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 $names +do for sfx in pack idx do - if test -f "$PACKDIR/pack-$name.$sfx" - then - mv -f "$PACKDIR/pack-$name.$sfx" \ - "$PACKDIR/old-pack-$name.$sfx" - fi - done && + 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-$name.idx" && - test -f "$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-$name.idx" + mv -f "$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 $existing are all redundant. @@ -136,5 +181,5 @@ fi case "$no_update_info" in t) : ;; -*) git-update-server-info ;; +*) git update-server-info ;; esac |