added -m/--message option for setting merge commit message

diff --git a/git-subtree.sh b/git-subtree.sh
index 28fb8e81fb80349a17763a819666308ebc0a589e..96118735b2c9da6867579dd19ae314add87f8b6d 100755 (executable)
--- a/git-subtree.sh
+++ b/git-subtree.sh
@@ -17,6 +17,7 @@ h,help        show the help
 q             quiet
 d             show debug messages
 p,prefix=     the name of the subdir to split out
+m,message=    use the given message as the commit message for the merge commit
  options for 'split'
 annotate=     add a prefix to commit message of new commits
 b,branch=     create a new branch from the split subtree
@@ -40,6 +41,7 @@ rejoin=
 ignore_joins=
 annotate=
 squash=
+message=
 
 debug()
 {
@@ -77,6 +79,7 @@ while [ $# -gt 0 ]; do
                --no-annotate) annotate= ;;
                -b) branch="$1"; shift ;;
                -p) prefix="$1"; shift ;;
+               -m) message="$1"; shift ;;
                --no-prefix) prefix= ;;
                --onto) onto="$1"; shift ;;
                --no-onto) onto= ;;
@@ -266,8 +269,13 @@ add_msg()
        dir="$1"
        latest_old="$2"
        latest_new="$3"
+       if [ -n "$message" ]; then
+               commit_message="$message"
+       else
+               commit_message="Add '$dir/' from commit '$latest_new'"
+       fi
        cat <<-EOF
-               Add '$dir/' from commit '$latest_new'
+               $commit_message
                
                git-subtree-dir: $dir
                git-subtree-mainline: $latest_old
@@ -275,13 +283,27 @@ add_msg()
        EOF
 }
 
+add_squashed_msg()
+{
+       if [ -n "$message" ]; then
+               echo "$message"
+       else
+               echo "Merge commit '$1' as '$2'"
+       fi
+}
+
 rejoin_msg()
 {
        dir="$1"
        latest_old="$2"
        latest_new="$3"
+       if [ -n "$message" ]; then
+               commit_message="$message"
+       else
+               commit_message="Split '$dir/' into commit '$latest_new'"
+       fi
        cat <<-EOF
-               Split '$dir/' into commit '$latest_new'
+               $message
                
                git-subtree-dir: $dir
                git-subtree-mainline: $latest_old
@@ -441,7 +463,7 @@ cmd_add()
        
        if [ -n "$squash" ]; then
                rev=$(new_squash_commit "" "" "$rev") || exit $?
-               commit=$(echo "Merge commit '$rev' as '$dir'" |
+               commit=$(add_squashed_msg "$rev" "$dir" |
                         git commit-tree $tree $headp -p "$rev") || exit $?
        else
                commit=$(add_msg "$dir" "$headrev" "$rev" |
@@ -561,7 +583,7 @@ cmd_merge()
                rev="$new"
        fi
        
-       git merge -s subtree $rev
+       git merge -s subtree --message="$message" $rev
 }
 
 cmd_pull()