describe: Make --tags and --all match lightweight tags more often

diff --git a/git-submodule.sh b/git-submodule.sh
index 4a95035d85d7563b84df15a09dc7c8160e9864ca..65178ae8e32bb20c65c42eb9668fb0ffec749007 100755 (executable)
--- a/git-submodule.sh
+++ b/git-submodule.sh
@@ -35,6 +35,7 @@ resolve_relative_url ()
        remoteurl=$(git config "remote.$remote.url") ||
                die "remote ($remote) does not have a url defined in .git/config"
        url="$1"
+       remoteurl=${remoteurl%/}
        while test -n "$url"
        do
                case "$url" in
@@ -49,7 +50,7 @@ resolve_relative_url ()
                        break;;
                esac
        done
-       echo "$remoteurl/$url"
+       echo "$remoteurl/${url%/}"
 }
 
 #
@@ -193,7 +194,7 @@ cmd_add()
        else
 
                module_clone "$path" "$realrepo" || exit
-               (unset GIT_DIR; cd "$path" && git checkout -q ${branch:+-b "$branch" "origin/$branch"}) ||
+               (unset GIT_DIR; cd "$path" && git checkout -f -q ${branch:+-b "$branch" "origin/$branch"}) ||
                die "Unable to checkout submodule '$path'"
        fi
 
@@ -339,8 +340,13 @@ cmd_update()
 
                if test "$subsha1" != "$sha1"
                then
+                       force=
+                       if test -z "$subsha1"
+                       then
+                               force="-f"
+                       fi
                        (unset GIT_DIR; cd "$path" && git-fetch &&
-                               git-checkout -q "$sha1") ||
+                               git-checkout $force -q "$sha1") ||
                        die "Unable to checkout '$sha1' in submodule path '$path'"
 
                        say "Submodule path '$path': checked out '$sha1'"
@@ -633,6 +639,14 @@ cmd_sync()
        do
                name=$(module_name "$path")
                url=$(git config -f .gitmodules --get submodule."$name".url)
+
+               # Possibly a url relative to parent
+               case "$url" in
+               ./*|../*)
+                       url=$(resolve_relative_url "$url") || exit
+                       ;;
+               esac
+
                if test -e "$path"/.git
                then
                (