Store exact submodule commits for direct submodule.

git-archive-all.sh

@@ -249,9 +249,27 @@ fi
 if [ $VERBOSE -eq 1 ]; then
     echo -n "archiving submodules..."
 fi
+
+TOP_TREEISH=$TREEISH
+TOP_TREEISH_HASH=$(git rev-parse "$TOP_TREEISH")
+TOP_HEAD_HASH=$(git rev-parse HEAD)
 git submodule status --recursive --cached >> "$TMPLIST"
 while read path; do
-    TREEISH=$(sed -nr -e 's@^[ +-]@@' -e 's@ +\(.*\)$@@' -e 's@([^ ]+) +'"${path%/}"'$@\1@ p' "$TMPLIST") # git submodule does not list trailing slashes in $path
+    # git submodule does not list trailing slashes in $path. Remove it in $TREEISH search.
+    TREEISH=$(git ls-tree "${TOP_TREEISH}" "${path%/}" | awk '{ print $3 }')
+    if [ -z "$TREEISH" ]; then
+        if [ "$TOP_TREEISH_HASH" != "$TOP_HEAD_HASH" ]; then
+            echo >&2 -e "\e[33;1mWarning:\e[22m Submodule \"${path%/}\" hash for top repo's ${TOP_TREEISH} was not obtained. Use the commit for top repo's HEAD.\e[m"
+        fi
+
+        TREEISH=$(sed -nr -e 's@^[ +-]@@' -e 's@ +\(.*\)$@@' -e 's@([^ ]+) +'"${path%/}"'$@\1@ p' "$TMPLIST")
+        if [ -z "$TREEISH" ]; then
+            echo >&2 -e "\e[33;1mWarning:\e[22m Submodule \"${path%/}\" hash for top repo's HEAD was not obtained. Use the commit for the submodule's HEAD.\e[m"
+            TREEISH=HEAD
+        fi
+    fi
+    echo >&2 "Submodule \"${path%/}\" commit for top repo's ${TOP_TREEISH}: ${TREEISH:-HEAD} ($(git -C ${path} name-rev --name-only "${TREEISH}"))"
+
     cd "$path"
     rm -f "$TMPDIR"/"$(echo "$path" | sed -e 's/\//./g')"$FORMAT
     git archive --format=$FORMAT --prefix="${PREFIX}$path" $ARCHIVE_OPTS ${TREEISH:-HEAD} > "$TMPDIR"/"$(echo "$path" | sed -e 's/\//./g')"$FORMAT