Fix installation of templates on ancient systems.

diff --git a/git-repack.sh b/git-repack.sh
index 55a7b27dcdc646ea03da49673738e1e024a127c1..9da92fb06139dc53061876f1532d9ee8c46d5346 100755 (executable)
--- a/git-repack.sh
+++ b/git-repack.sh
@@ -3,17 +3,23 @@
 # Copyright (c) 2005 Linus Torvalds
 #
 
-. git-sh-setup || die "Not a git archive"
-       
-no_update_info= all_into_one= remove_redundant= local=
+USAGE='[-a] [-d] [-f] [-l] [-n] [-q]'
+. git-sh-setup
+
+no_update_info= all_into_one= remove_redundant=
+local= quiet= no_reuse_delta= extra=
 while case "$#" in 0) break ;; esac
 do
        case "$1" in
        -n)     no_update_info=t ;;
        -a)     all_into_one=t ;;
        -d)     remove_redundant=t ;;
-       -l)     local=t ;;
-       *)      break ;;
+       -q)     quiet=-q ;;
+       -f)     no_reuse_delta=--no-reuse-delta ;;
+       -l)     local=--local ;;
+       --window=*) extra="$extra $1" ;;
+       --depth=*) extra="$extra $1" ;;
+       *)      usage ;;
        esac
        shift
 done
@@ -25,61 +31,69 @@ PACKDIR="$GIT_OBJECT_DIRECTORY/pack"
 case ",$all_into_one," in
 ,,)
        rev_list='--unpacked'
-       rev_parse='--all'
        pack_objects='--incremental'
        ;;
 ,t,)
        rev_list=
-       rev_parse='--all'
        pack_objects=
+
+       # Redundancy check in all-into-one case is trivial.
+       existing=`cd "$PACKDIR" && \
+           find . -type f \( -name '*.pack' -o -name '*.idx' \) -print`
        ;;
 esac
-if [ "$local" ]; then
-       pack_objects="$pack_objects --local"
-fi
-name=$(git-rev-list --objects $rev_list $(git-rev-parse $rev_parse) |
+pack_objects="$pack_objects $local $quiet $no_reuse_delta$extra"
+name=$( { git-rev-list --objects --all $rev_list ||
+         echo "git-rev-list died with exit code $?"
+       } |
        git-pack-objects --non-empty $pack_objects .tmp-pack) ||
        exit 1
 if [ -z "$name" ]; then
        echo Nothing new to pack.
-       if test "$remove_redundant" = t ; then
-               echo "Removing redundant packs."
-               sync
-               redundant=$(git-pack-redundant --all)
-               if test "$redundant" != "" ; then
-                       echo $redundant | xargs rm
-               fi
+else
+       if test "$quiet" != '-q'; then
+           echo "Pack pack-$name created."
        fi
-       exit 0
-fi
-echo "Pack pack-$name created."
+       mkdir -p "$PACKDIR" || exit
 
-mkdir -p "$PACKDIR" || exit
-
-mv .tmp-pack-$name.pack "$PACKDIR/pack-$name.pack" &&
-mv .tmp-pack-$name.idx  "$PACKDIR/pack-$name.idx" ||
-exit
+       for sfx in pack idx
+       do
+               if test -f "$PACKDIR/pack-$name.$sfx"
+               then
+                       mv -f "$PACKDIR/pack-$name.$sfx" \
+                               "$PACKDIR/old-pack-$name.$sfx"
+               fi
+       done &&
+       mv -f .tmp-pack-$name.pack "$PACKDIR/pack-$name.pack" &&
+       mv -f .tmp-pack-$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"
+fi
 
 if test "$remove_redundant" = t
 then
-       sync
-       if test "$all_into_one" = t
+       # We know $existing are all redundant only when
+       # all-into-one is used.
+       if test "$all_into_one" != '' && test "$existing" != ''
        then
-               cd "$PACKDIR"
-               existing=`find . -type f \( -name '*.pack' -o -name '*.idx' \) -print`
-               for e in $existing
-               do
+               sync
+               ( cd "$PACKDIR" &&
+                 for e in $existing
+                 do
                        case "$e" in
                        ./pack-$name.pack | ./pack-$name.idx) ;;
-                       *)      rm -f $e ;;
+                       *)      rm -f $e ;;
                        esac
-               done
-       else
-               redundant=$(git-pack-redundant --all)
-               if test "$redundant" != "" ; then
-                       echo $redundant | xargs rm
-               fi
+                 done
+               )
        fi
+       git-prune-packed
 fi
 
 case "$no_update_info" in