help: remove extra blank line after "See 'git --help'" message

diff --git a/git-rebase--interactive.sh b/git-rebase--interactive.sh
index efa83f61348f2603872d01a48cc9ae2ffaadc1ff..0dd77b4005b9d80bfe6c606954d7666df77abc57 100755 (executable)
--- a/git-rebase--interactive.sh
+++ b/git-rebase--interactive.sh
@@ -36,10 +36,9 @@ warn () {
 output () {
        case "$VERBOSE" in
        '')
-               "$@" > "$DOTEST"/output 2>&1
+               output=$("$@" 2>&1 )
                status=$?
-               test $status != 0 &&
-                       cat "$DOTEST"/output
+               test $status != 0 && printf "%s\n" "$output"
                return $status
                ;;
        *)
@@ -81,7 +80,7 @@ mark_action_done () {
 make_patch () {
        parent_sha1=$(git rev-parse --verify "$1"^) ||
                die "Cannot get patch for $1^"
-       git diff "$parent_sha1".."$1" > "$DOTEST"/patch
+       git diff-tree -p "$parent_sha1".."$1" > "$DOTEST"/patch
        test -f "$DOTEST"/message ||
                git cat-file commit "$1" | sed "1,/^$/d" > "$DOTEST"/message
        test -f "$DOTEST"/author-script ||
@@ -111,7 +110,7 @@ pick_one () {
        parent_sha1=$(git rev-parse --verify $sha1^) ||
                die "Could not get the parent of $sha1"
        current_sha1=$(git rev-parse --verify HEAD)
-       if test $no_ff$current_sha1 = $parent_sha1; then
+       if test "$no_ff$current_sha1" = "$parent_sha1"; then
                output git reset --hard $sha1
                test "a$1" = a-n && output git reset --soft $current_sha1
                sha1=$(git rev-parse --short $sha1)
@@ -174,7 +173,11 @@ pick_one_preserving_merges () {
                        eval "$author_script"
                        msg="$(git cat-file commit $sha1 | sed -e '1,/^$/d')"
                        # NEEDSWORK: give rerere a chance
-                       if ! output git merge $STRATEGY -m "$msg" $new_parents
+                       if ! GIT_AUTHOR_NAME="$GIT_AUTHOR_NAME" \
+                               GIT_AUTHOR_EMAIL="$GIT_AUTHOR_EMAIL" \
+                               GIT_AUTHOR_DATE="$GIT_AUTHOR_DATE" \
+                               output git merge $STRATEGY -m "$msg" \
+                                       $new_parents
                        then
                                printf "%s\n" "$msg" > "$GIT_DIR"/MERGE_MSG
                                die Error redoing merge $sha1
@@ -229,14 +232,14 @@ do_next () {
        '#'*|'')
                mark_action_done
                ;;
-       pick)
+       pick|p)
                comment_for_reflog pick
 
                mark_action_done
                pick_one $sha1 ||
                        die_with_patch $sha1 "Could not apply $sha1... $rest"
                ;;
-       edit)
+       edit|e)
                comment_for_reflog edit
 
                mark_action_done
@@ -251,7 +254,7 @@ do_next () {
                warn
                exit 0
                ;;
-       squash)
+       squash|s)
                comment_for_reflog squash
 
                has_action "$DONE" ||
@@ -260,7 +263,7 @@ do_next () {
                mark_action_done
                make_squash_message $sha1 > "$MSG"
                case "$(peek_next_command)" in
-               squash)
+               squash|s)
                        EDIT_COMMIT=
                        USE_OUTPUT=output
                        cp "$MSG" "$SQUASH_MSG"
@@ -273,15 +276,17 @@ do_next () {
                esac
 
                failed=f
+               author_script=$(get_author_ident_from_commit HEAD)
                output git reset --soft HEAD^
                pick_one -n $sha1 || failed=t
-               author_script=$(get_author_ident_from_commit $sha1)
                echo "$author_script" > "$DOTEST"/author-script
                case $failed in
                f)
                        # This is like --amend, but with a different message
                        eval "$author_script"
-                       export GIT_AUTHOR_NAME GIT_AUTHOR_EMAIL GIT_AUTHOR_DATE
+                       GIT_AUTHOR_NAME="$GIT_AUTHOR_NAME" \
+                       GIT_AUTHOR_EMAIL="$GIT_AUTHOR_EMAIL" \
+                       GIT_AUTHOR_DATE="$GIT_AUTHOR_DATE" \
                        $USE_OUTPUT git commit -F "$MSG" $EDIT_COMMIT
                        ;;
                t)
@@ -312,13 +317,18 @@ do_next () {
        else
                NEWHEAD=$(git rev-parse HEAD)
        fi &&
-       message="$GIT_REFLOG_ACTION: $HEADNAME onto $SHORTONTO)" &&
-       git update-ref -m "$message" $HEADNAME $NEWHEAD $OLDHEAD &&
-       git symbolic-ref HEAD $HEADNAME && {
+       case $HEADNAME in
+       refs/*)
+               message="$GIT_REFLOG_ACTION: $HEADNAME onto $SHORTONTO)" &&
+               git update-ref -m "$message" $HEADNAME $NEWHEAD $OLDHEAD &&
+               git symbolic-ref HEAD $HEADNAME
+               ;;
+       esac && {
                test ! -f "$DOTEST"/verbose ||
-                       git diff --stat $(cat "$DOTEST"/head)..HEAD
+                       git diff-tree --stat $(cat "$DOTEST"/head)..HEAD
        } &&
        rm -rf "$DOTEST" &&
+       git gc --auto &&
        warn "Successfully rebased and updated $HEADNAME."
 
        exit
@@ -360,7 +370,11 @@ do
 
                HEADNAME=$(cat "$DOTEST"/head-name)
                HEAD=$(cat "$DOTEST"/head)
-               git symbolic-ref HEAD $HEADNAME &&
+               case $HEADNAME in
+               refs/*)
+                       git symbolic-ref HEAD $HEADNAME
+                       ;;
+               esac &&
                output git reset --hard $HEAD &&
                rm -rf "$DOTEST"
                exit
@@ -422,7 +436,6 @@ do
 
                require_clean_work_tree
 
-               mkdir "$DOTEST" || die "Could not create temporary $DOTEST"
                if test ! -z "$2"
                then
                        output git show-ref --verify --quiet "refs/heads/$2" ||
@@ -434,11 +447,13 @@ do
                HEAD=$(git rev-parse --verify HEAD) || die "No HEAD?"
                UPSTREAM=$(git rev-parse --verify "$1") || die "Invalid base"
 
+               mkdir "$DOTEST" || die "Could not create temporary $DOTEST"
+
                test -z "$ONTO" && ONTO=$UPSTREAM
 
                : > "$DOTEST"/interactive || die "Could not mark as interactive"
-               git symbolic-ref HEAD > "$DOTEST"/head-name ||
-                       die "Could not get HEAD"
+               git symbolic-ref HEAD > "$DOTEST"/head-name 2> /dev/null ||
+                       echo "detached HEAD" > "$DOTEST"/head-name
 
                echo $HEAD > "$DOTEST"/head
                echo $UPSTREAM > "$DOTEST"/upstream