Merge branch 'fc/config-editor'

diff --git a/git-rebase.sh b/git-rebase.sh
index ebd4df3a0e821ddcfd1eabfcaac17f854e172a85..c2a9b1fbe05499af32d25750498b244bc0597592 100755 (executable)
--- a/git-rebase.sh
+++ b/git-rebase.sh
@@ -3,7 +3,7 @@
 # Copyright (c) 2005 Junio C Hamano.
 #
 
-USAGE='[--interactive | -i] [-v] [--onto <newbase>] <upstream> [<branch>]'
+USAGE='[--interactive | -i] [-v] [--force-rebase | -f] [--onto <newbase>] [<upstream>|--root] [<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>
@@ -47,6 +47,8 @@ dotest="$GIT_DIR"/rebase-merge
 prec=4
 verbose=
 git_am_opt=
+rebase_root=
+force_rebase=
 
 continue_merge () {
        test -n "$prev_head" || die "prev_head must be defined"
@@ -293,10 +295,21 @@ do
                ;;
        --whitespace=*)
                git_am_opt="$git_am_opt $1"
+               case "$1" in
+               --whitespace=fix|--whitespace=strip)
+                       force_rebase=t
+                       ;;
+               esac
                ;;
        -C*)
                git_am_opt="$git_am_opt $1"
                ;;
+       --root)
+               rebase_root=t
+               ;;
+       -f|--f|--fo|--for|--forc|force|--force-r|--force-re|--force-reb|--force-reba|--force_rebas|--force-rebase)
+               force_rebase=t
+               ;;
        -*)
                usage
                ;;
@@ -306,6 +319,7 @@ do
        esac
        shift
 done
+test $# -gt 2 && usage
 
 # Make sure we do not have $GIT_DIR/rebase-apply
 if test -z "$do_merge"
@@ -344,17 +358,29 @@ case "$diff" in
        ;;
 esac
 
-# The upstream head must be given.  Make sure it is valid.
-upstream_name="$1"
-upstream=`git rev-parse --verify "${upstream_name}^0"` ||
-    die "invalid upstream $upstream_name"
+if test -z "$rebase_root"
+then
+       # The upstream head must be given.  Make sure it is valid.
+       upstream_name="$1"
+       shift
+       upstream=`git rev-parse --verify "${upstream_name}^0"` ||
+       die "invalid upstream $upstream_name"
+       unset root_flag
+       upstream_arg="$upstream_name"
+else
+       test -z "$newbase" && die "--root must be used with --onto"
+       unset upstream_name
+       unset upstream
+       root_flag="--root"
+       upstream_arg="$root_flag"
+fi
 
 # Make sure the branch to rebase onto is valid.
 onto_name=${newbase-"$upstream_name"}
 onto=$(git rev-parse --verify "${onto_name}^0") || exit
 
 # If a hook exists, give it a chance to interrupt
-run_pre_rebase_hook ${1+"$@"}
+run_pre_rebase_hook "$upstream_arg" "$@"
 
 # If the branch to rebase is given, that is the branch we will rebase
 # $branch_name -- branch being rebased, or HEAD (already detached)
@@ -362,16 +388,16 @@ run_pre_rebase_hook ${1+"$@"}
 # $head_name -- refs/heads/<that-branch> or "detached HEAD"
 switch_to=
 case "$#" in
-2)
+1)
        # Is it "rebase other $branchname" or "rebase other $commit"?
-       branch_name="$2"
-       switch_to="$2"
+       branch_name="$1"
+       switch_to="$1"
 
-       if git show-ref --verify --quiet -- "refs/heads/$2" &&
-          branch=$(git rev-parse -q --verify "refs/heads/$2")
+       if git show-ref --verify --quiet -- "refs/heads/$1" &&
+          branch=$(git rev-parse -q --verify "refs/heads/$1")
        then
-               head_name="refs/heads/$2"
-       elif branch=$(git rev-parse -q --verify "$2")
+               head_name="refs/heads/$1"
+       elif branch=$(git rev-parse -q --verify "$1")
        then
                head_name="detached HEAD"
        else
@@ -393,7 +419,8 @@ case "$#" in
 esac
 orig_head=$branch
 
-# Now we are rebasing commits $upstream..$branch on top of $onto
+# Now we are rebasing commits $upstream..$branch (or with --root,
+# everything leading up to $branch) on top of $onto
 
 # Check if we are already based on $onto with linear history,
 # but this should be done only when upstream and onto are the same.
@@ -402,10 +429,15 @@ if test "$upstream" = "$onto" && test "$mb" = "$onto" &&
        # linear history?
        ! (git rev-list --parents "$onto".."$branch" | grep " .* ") > /dev/null
 then
-       # Lazily switch to the target branch if needed...
-       test -z "$switch_to" || git checkout "$switch_to"
-       echo >&2 "Current branch $branch_name is up to date."
-       exit 0
+       if test -z "$force_rebase"
+       then
+               # Lazily switch to the target branch if needed...
+               test -z "$switch_to" || git checkout "$switch_to"
+               echo >&2 "Current branch $branch_name is up to date."
+               exit 0
+       else
+               echo "Current branch $branch_name is up to date, rebase forced."
+       fi
 fi
 
 if test -n "$verbose"
@@ -429,10 +461,17 @@ then
        exit 0
 fi
 
+if test -n "$rebase_root"
+then
+       revisions="$onto..$orig_head"
+else
+       revisions="$upstream..$orig_head"
+fi
+
 if test -z "$do_merge"
 then
        git format-patch -k --stdout --full-index --ignore-if-in-upstream \
-               "$upstream..$orig_head" |
+               $root_flag "$revisions" |
        git am $git_am_opt --rebasing --resolvemsg="$RESOLVEMSG" &&
        move_to_original_branch
        ret=$?
@@ -455,7 +494,7 @@ echo "$orig_head" > "$dotest/orig-head"
 echo "$head_name" > "$dotest/head-name"
 
 msgnum=0
-for cmt in `git rev-list --reverse --no-merges "$upstream..$orig_head"`
+for cmt in `git rev-list --reverse --no-merges "$revisions"`
 do
        msgnum=$(($msgnum + 1))
        echo "$cmt" > "$dotest/cmt.$msgnum"