diff --git a/.github/workflows/job_sync.yml b/.github/workflows/job_sync.yml
index dac3f14..f2a755b 100644
--- a/.github/workflows/job_sync.yml
+++ b/.github/workflows/job_sync.yml
@@ -25,7 +25,7 @@ jobs:
         dst_hash=$(git ls-remote ${GITHUB_SERVER_URL}/${GITHUB_REPOSITORY} refs/heads/master | cut -f1)
         echo "src_hash=$src_hash"
         echo "dst_hash=$dst_hash"
-        if [ "$src_hash" != "$dst_hash" ]; then
+        if [ "$src_hash" != "$dst_hash" -a "$src_hash" != "" -a "$dst_hash" != "" ]; then
           echo "sync_needed=true" >> $GITHUB_OUTPUT
         else
           echo "sync_needed=false" >> $GITHUB_OUTPUT
diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..ad367ea
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,39 @@
+# Develop tools
+/.vscode/
+/.idea/
+.idea
+.vscode
+
+# Binaries for programs and plugins
+*.exe
+*.exe~
+*.dll
+*.so
+*.dylib
+
+# Folders
+_obj
+_test
+_build
+.DS_Store
+
+# Architecture specific extensions/prefixes
+*.[568vq]
+[568vq].out
+
+*.cgo1.go
+*.cgo2.c
+_cgo_defun.c
+_cgo_gotypes.go
+_cgo_export.*
+
+# Test binary, build with `go test -c`
+*.test
+
+# Output of the go coverage tool, specifically when used with LiteIDE
+*.out
+
+# vim temp files
+*~
+*.swp
+*.swo
\ No newline at end of file