git-pickaxe: rename detection optimization

diff --git a/git-rebase.sh b/git-rebase.sh
index 9ad1c44d4816f8c4f52eddc525bc24cd6bfe92d2..546fa446fc3c6c63488b9ef38cb5bdc960953cb1 100755 (executable)
--- a/git-rebase.sh
+++ b/git-rebase.sh
@@ -3,7 +3,7 @@
 # Copyright (c) 2005 Junio C Hamano.
 #
 
-USAGE='[--onto <newbase>] <upstream> [<branch>]'
+USAGE='[-v] [--onto <newbase>] <upstream> [<branch>]'
 LONG_USAGE='git-rebase replaces <branch> with a new branch of the
 same name.  When the --onto option is provided the new branch starts
 out with a HEAD equal to <newbase>, otherwise it is equal to <upstream>
@@ -34,16 +34,12 @@ When you have resolved this problem run \"git rebase --continue\".
 If you would prefer to skip this patch, instead run \"git rebase --skip\".
 To restore the original branch and stop rebasing run \"git rebase --abort\".
 "
-
-MRESOLVEMSG="
-When you have resolved this problem run \"git rebase --continue\".
-To restore the original branch and stop rebasing run \"git rebase --abort\".
-"
 unset newbase
 strategy=recursive
 do_merge=
 dotest=$GIT_DIR/.dotest-merge
 prec=4
+verbose=
 
 continue_merge () {
        test -n "$prev_head" || die "prev_head must be defined"
@@ -54,13 +50,18 @@ continue_merge () {
        then
                echo "You still have unmerged paths in your index"
                echo "did you forget update-index?"
-               die "$MRESOLVEMSG"
+               die "$RESOLVEMSG"
        fi
 
        if test -n "`git-diff-index HEAD`"
        then
+               if ! git-commit -C "`cat $dotest/current`"
+               then
+                       echo "Commit failed, please do not call \"git commit\""
+                       echo "directly, but instead do one of the following: "
+                       die "$RESOLVEMSG"
+               fi
                printf "Committed: %0${prec}d" $msgnum
-               git-commit -C "`cat $dotest/current`"
        else
                printf "Already applied: %0${prec}d" $msgnum
        fi
@@ -87,11 +88,11 @@ call_merge () {
                ;;
        1)
                test -d "$GIT_DIR/rr-cache" && git-rerere
-               die "$MRESOLVEMSG"
+               die "$RESOLVEMSG"
                ;;
        2)
                echo "Strategy: $rv $strategy failed, try another" 1>&2
-               die "$MRESOLVEMSG"
+               die "$RESOLVEMSG"
                ;;
        *)
                die "Unknown exit code ($rv) from command:" \
@@ -131,7 +132,8 @@ do
                        finish_rb_merge
                        exit
                fi
-               git am --resolved --3way --resolvemsg="$RESOLVEMSG"
+               git am --resolved --3way --resolvemsg="$RESOLVEMSG" \
+                       --reflog-action=rebase
                exit
                ;;
        --skip)
@@ -150,7 +152,8 @@ do
                        finish_rb_merge
                        exit
                fi
-               git am -3 --skip --resolvemsg="$RESOLVEMSG"
+               git am -3 --skip --resolvemsg="$RESOLVEMSG" \
+                       --reflog-action=rebase
                exit
                ;;
        --abort)
@@ -179,7 +182,7 @@ do
        -s|--s|--st|--str|--stra|--strat|--strate|--strateg|--strategy)
                case "$#,$1" in
                *,*=*)
-                       strategy=`expr "$1" : '-[^=]*=\(.*\)'` ;;
+                       strategy=`expr "z$1" : 'z-[^=]*=\(.*\)'` ;;
                1,*)
                        usage ;;
                *)
@@ -188,6 +191,9 @@ do
                esac
                do_merge=t
                ;;
+       -v|--verbose)
+               verbose=t
+               ;;
        -*)
                usage
                ;;
@@ -264,14 +270,17 @@ onto=$(git-rev-parse --verify "${onto_name}^0") || exit
 
 # Check if we are already based on $onto, but this should be
 # done only when upstream and onto are the same.
-if test "$upstream" = "$onto"
+mb=$(git-merge-base "$onto" "$branch")
+if test "$upstream" = "$onto" && test "$mb" = "$onto"
 then
-       mb=$(git-merge-base "$onto" "$branch")
-       if test "$mb" = "$onto"
-       then
-               echo >&2 "Current branch $branch_name is up to date."
-               exit 0
-       fi
+       echo >&2 "Current branch $branch_name is up to date."
+       exit 0
+fi
+
+if test -n "$verbose"
+then
+       echo "Changes from $mb to $onto:"
+       git-diff-tree --stat --summary "$mb" "$onto"
 fi
 
 # Rewind the head to "$onto"; this saves our current head in ORIG_HEAD.
@@ -279,24 +288,25 @@ git-reset --hard "$onto"
 
 # If the $onto is a proper descendant of the tip of the branch, then
 # we just fast forwarded.
-if test "$mb" = "$onto"
+if test "$mb" = "$branch"
 then
-       echo >&2 "Fast-forwarded $branch to $newbase."
+       echo >&2 "Fast-forwarded $branch_name to $onto_name."
        exit 0
 fi
 
 if test -z "$do_merge"
 then
-       git-format-patch -k --stdout --full-index "$upstream"..ORIG_HEAD |
-       git am --binary -3 -k --resolvemsg="$RESOLVEMSG"
+       git-format-patch -k --stdout --full-index --ignore-if-in-upstream "$upstream"..ORIG_HEAD |
+       git am --binary -3 -k --resolvemsg="$RESOLVEMSG" \
+               --reflog-action=rebase
        exit $?
 fi
 
-if test "@@NO_PYTHON@@" && test "$strategy" = "recursive"
+if test "@@NO_PYTHON@@" && test "$strategy" = "recursive-old"
 then
-       die 'The recursive merge strategy currently relies on Python,
+       die 'The recursive-old merge strategy is written in Python,
 which this installation of git was not configured with.  Please consider
-a different merge strategy (e.g. octopus, resolve, stupid, ours)
+a different merge strategy (e.g. recursive, resolve, or stupid)
 or install Python and git with Python support.'
 
 fi
@@ -311,7 +321,7 @@ echo "$prev_head" > "$dotest/prev_head"
 
 msgnum=0
 for cmt in `git-rev-list --no-merges "$upstream"..ORIG_HEAD \
-                       | perl -e 'print reverse <>'`
+                       | @@PERL@@ -e 'print reverse <>'`
 do
        msgnum=$(($msgnum + 1))
        echo "$cmt" > "$dotest/cmt.$msgnum"