Avoid redundant patching when recursively patching

If a path is not supplied to project_sources_patch_recursive() or
git_project_patch_recursive() then it will attempt to apply the set of
patches located at $PROJECTS/$project/$PATCHES (the top-level patches
directory) twice. Checking to see if $path is of non-zero length
avoids this issue.

2 files changed, 2 insertions, 2 deletions

diff --git a/libs/git b/libs/git
index 429d4783..2cde3dd3 100755
--- a/libs/git
+++ b/libs/git
@@ -312,7 +312,7 @@ git_project_patch_recursive() {
 		git_patch "$repository_path" "$branch" "$patch" || return 1
 	done
 
-	if [[ $path != . ]]; then
+	if [[ -n $path && $path != . ]]; then
 		git_project_patch_recursive "$project" "$repository" "$branch" "$(dirname "$path")"
 	fi
 }
diff --git a/libs/project b/libs/project
index 908f8942..34b139a5 100755
--- a/libs/project
+++ b/libs/project
@@ -587,7 +587,7 @@ project_sources_patch_recursive() {
 		diff_patch "$sources_path" "$patch" || return 1
 	done
 
-	if [[ $path != . ]]; then
+	if [[ -n $path && $path != . ]]; then
 		project_sources_patch_recursive "$project" "$(dirname "$path")"
 	fi
 }