Documentation: Clarify '--signoff' for git-commit

diff --git a/git-rebase.sh b/git-rebase.sh
index 412e135c3ae88d76b5bdf3f08083b153da220a95..a30d40c0056dc32aa6123adc9856e649c469fcd0 100755 (executable)
--- a/git-rebase.sh
+++ b/git-rebase.sh
@@ -144,8 +144,29 @@ is_interactive () {
        done && test -n "$1"
 }
 
+run_pre_rebase_hook () {
+       if test -x "$GIT_DIR/hooks/pre-rebase"
+       then
+               "$GIT_DIR/hooks/pre-rebase" ${1+"$@"} || {
+                       echo >&2 "The pre-rebase hook refused to rebase."
+                       exit 1
+               }
+       fi
+}
+
+test -f "$GIT_DIR"/rebase-apply/applying &&
+       die 'It looks like git-am is in progress. Cannot rebase.'
+
 is_interactive "$@" && exec git-rebase--interactive "$@"
 
+if test $# -eq 0
+then
+       test -d "$dotest" -o -d "$GIT_DIR"/rebase-apply || usage
+       test -d "$dotest" -o -f "$GIT_DIR"/rebase-apply/rebasing &&
+               die 'A rebase is in progress, try --continue, --skip or --abort.'
+       die "No arguments given and $GIT_DIR/rebase-apply already exists."
+fi
+
 while test $# != 0
 do
        case "$1" in
@@ -268,16 +289,16 @@ done
 # Make sure we do not have $GIT_DIR/rebase-apply
 if test -z "$do_merge"
 then
-       if mkdir "$GIT_DIR"/rebase-apply
+       if mkdir "$GIT_DIR"/rebase-apply 2>/dev/null
        then
                rmdir "$GIT_DIR"/rebase-apply
        else
                echo >&2 '
-It seems that I cannot create a '"$GIT_DIR"'/rebase-apply directory,
-and I wonder if you are in the middle of patch application or another
+It seems that I cannot create a rebase-apply directory, and
+I wonder if you are in the middle of patch application or another
 rebase.  If that is not the case, please
        rm -fr '"$GIT_DIR"'/rebase-apply
- and run me again.  I am stopping in case you still have something
+and run me again.  I am stopping in case you still have something
 valuable there.'
                exit 1
        fi
@@ -285,7 +306,7 @@ else
        if test -d "$dotest"
        then
                die "previous rebase directory $dotest still exists." \
-                       'try git-rebase < --continue | --abort >'
+                       'Try git rebase (--continue | --abort | --skip)'
        fi
 fi
 
@@ -309,13 +330,7 @@ onto_name=${newbase-"$upstream_name"}
 onto=$(git rev-parse --verify "${onto_name}^0") || exit
 
 # If a hook exists, give it a chance to interrupt
-if test -x "$GIT_DIR/hooks/pre-rebase"
-then
-       "$GIT_DIR/hooks/pre-rebase" ${1+"$@"} || {
-               echo >&2 "The pre-rebase hook refused to rebase."
-               exit 1
-       }
-fi
+run_pre_rebase_hook ${1+"$@"}
 
 # If the branch to rebase is given, that is the branch we will rebase
 # $branch_name -- branch being rebased, or HEAD (already detached)