Small cache_tree_write refactor.

diff --git a/git-repack.sh b/git-repack.sh
index f2c9071d1109e014832f0efd8a1fd67dca44c8af..156c5e8f4aa2f6c04e33af323ef43356fd336adb 100755 (executable)
--- a/git-repack.sh
+++ b/git-repack.sh
@@ -3,12 +3,12 @@
 # Copyright (c) 2005 Linus Torvalds
 #
 
-USAGE='[-a] [-d] [-f] [-l] [-n] [-q]'
+USAGE='[-a] [-d] [-f] [-l] [-n] [-q] [--max-pack-size=N] [--window=N] [--window-memory=N] [--depth=N]'
 SUBDIRECTORY_OK='Yes'
 . git-sh-setup
 
 no_update_info= all_into_one= remove_redundant=
-local= quiet= no_reuse_delta= extra=
+local= quiet= no_reuse= extra=
 while case "$#" in 0) break ;; esac
 do
        case "$1" in
@@ -16,17 +16,28 @@ do
        -a)     all_into_one=t ;;
        -d)     remove_redundant=t ;;
        -q)     quiet=-q ;;
-       -f)     no_reuse_delta=--no-reuse-delta ;;
+       -f)     no_reuse=--no-reuse-object ;;
        -l)     local=--local ;;
+       --max-pack-size=*) extra="$extra $1" ;;
        --window=*) extra="$extra $1" ;;
+       --window-memory=*) extra="$extra $1" ;;
        --depth=*) extra="$extra $1" ;;
        *)      usage ;;
        esac
        shift
 done
 
+# Later we will default repack.UseDeltaBaseOffset to true
+default_dbo=false
+
+case "`git config --bool repack.usedeltabaseoffset ||
+       echo $default_dbo`" in
+true)
+       extra="$extra --delta-base-offset" ;;
+esac
+
 PACKDIR="$GIT_OBJECT_DIRECTORY/pack"
-PACKTMP="$GIT_DIR/.tmp-$$-pack"
+PACKTMP="$GIT_OBJECT_DIRECTORY/.tmp-$$-pack"
 rm -f "$PACKTMP"-*
 trap 'rm -f "$PACKTMP"-*' 0 1 2 3 15
 
@@ -36,20 +47,34 @@ case ",$all_into_one," in
        args='--unpacked --incremental'
        ;;
 ,t,)
-       args=
-
-       # Redundancy check in all-into-one case is trivial.
-       existing=`test -d "$PACKDIR" && cd "$PACKDIR" && \
-           find . -type f \( -name '*.pack' -o -name '*.idx' \) -print`
+       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 $e"
+                       fi
+               done
+       fi
+       [ -z "$args" ] && args='--unpacked --incremental'
        ;;
 esac
 
-args="$args $local $quiet $no_reuse_delta$extra"
-name=$(git-pack-objects --non-empty --all $args </dev/null "$PACKTMP") ||
+args="$args $local $quiet $no_reuse$extra"
+names=$(git pack-objects --non-empty --all --reflog $args </dev/null "$PACKTMP") ||
        exit 1
-if [ -z "$name" ]; then
-       echo Nothing new to pack.
-else
+if [ -z "$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-$name.idx"
        if test "$quiet" != '-q'; then
            echo "Pack pack-$name created."
        fi
@@ -73,26 +98,25 @@ else
                exit 1
        }
        rm -f "$PACKDIR/old-pack-$name.pack" "$PACKDIR/old-pack-$name.idx"
-fi
+done
 
 if test "$remove_redundant" = t
 then
-       # We know $existing are all redundant only when
-       # all-into-one is used.
-       if test "$all_into_one" != '' && test "$existing" != ''
+       # We know $existing are all redundant.
+       if [ -n "$existing" ]
        then
                sync
                ( cd "$PACKDIR" &&
                  for e in $existing
                  do
-                       case "$e" in
-                       ./pack-$name.pack | ./pack-$name.idx) ;;
-                       *)      rm -f $e ;;
+                       case " $fullbases " in
+                       *" $e "*) ;;
+                       *)      rm -f "$e.pack" "$e.idx" "$e.keep" ;;
                        esac
                  done
                )
        fi
-       git-prune-packed
+       git prune-packed $quiet
 fi
 
 case "$no_update_info" in