git-submodule summary: --for-status option

[thirdparty/git.git] / git-submodule.sh

diff --git a/git-submodule.sh b/git-submodule.sh
index 56ec3536e0c40190329b9867b46e36753f30efb2..3249042028fbc6f2376c500711e661d521c147d1 100755 (executable)
--- a/git-submodule.sh
+++ b/git-submodule.sh
@@ -327,7 +327,7 @@ set_name_rev () {
                cd "$1" && {
                        git describe "$2" 2>/dev/null ||
                        git describe --tags "$2" 2>/dev/null ||
-                       git describe --contains --tags "$2"
+                       git describe --contains --tags --always "$2"
                }
        ) )
        test -z "$revname" || revname=" ($revname)"
@@ -342,6 +342,7 @@ set_name_rev () {
 #
 cmd_summary() {
        summary_limit=-1
+       for_status=
 
        # parse $args after "submodule ... summary".
        while test $# -ne 0
@@ -350,6 +351,9 @@ cmd_summary() {
                --cached)
                        cached="$1"
                        ;;
+               --for-status)
+                       for_status="$1"
+                       ;;
                -n|--summary-limit)
                        if summary_limit=$(($2 + 0)) 2>/dev/null && test "$summary_limit" = "$2"
                        then
@@ -397,7 +401,8 @@ cmd_summary() {
                done
        )
 
-       test -n "$modules" &&
+       test -z "$modules" && return
+
        git diff-index $cached --raw $head -- $modules |
        grep -e '^:160000' -e '^:[0-7]* 160000' |
        cut -c2- |
@@ -499,7 +504,14 @@ cmd_summary() {
                        echo
                fi
                echo
-       done
+       done |
+       if test -n "$for_status"; then
+               echo "# Modified submodules:"
+               echo "#"
+               sed -e 's|^|# |' -e 's|^# $|#|'
+       else
+               cat
+       fi
 }
 #
 # List all submodules, prefixed with: