chore: add Go code generation for IDL

.github/workflows/generate-files.yml

@@ -0,0 +1,27 @@
+name: Generated Files are Updated
+on:
+  merge_group:
+  pull_request:
+    branches:
+      - "*"
+
+jobs:
+  build:
+    runs-on: ubuntu-22.04
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v4
+
+      - name: Generate Go code, docs and specs
+        env:
+          TEST_ENV: ${{ github.workspace }}
+        run: make generate
+
+      - name: Check for changes
+        run: |
+          if git diff --exit-code --ignore-space-change --ignore-all-space --ignore-cr-at-eol; then
+            echo "Generated Go files are up-to-date."
+          else
+            echo "::error::Generated files are not up-to-date. Please run 'make generate' locally and commit any changes."
+            exit 1
+          fi

.gitignore

@@ -1,4 +1,5 @@
 .anchor/
 /target
 **/.DS_Store
-node_modules
+.idea/
+node_modules/

Makefile

@@ -7,4 +7,22 @@ C_END=\033[0m
 .PHONY: fmt
 fmt:
 	@echo "$(C_GREEN)# Formatting rust code$(C_END)"
-	@./scripts/fmt.sh
+	@./scripts/fmt.sh
+
+
+# directories for Go code generation
+IDL_DIR := ./target/idl
+GENERATED_DIR := ./generated
+
+# generate Go code from IDL files
+.PHONY: generate
+generate:
+	rm -rf $(GENERATED_DIR)/*.go
+	@for file in $(wildcard $(IDL_DIR)/*.json); do \
+	    base_name=$$(basename $$file .json); \
+	    input_file="../$$file"; \
+	    output_file="$(GENERATED_DIR)/$$base_name.go"; \
+	    echo "Generating $$output_file from $$file"; \
+	    (cd go-idl && go run ./generator "$$input_file" "$$output_file"); \
+	    (cd go-idl && go fmt $$output_file); \
+	done

README.md

@@ -55,6 +55,11 @@ To run the tests
 $ anchor test
 ```
 
+To generate Go code for program's IDL
+```bash
+$ make generate
+```
+
 # Authentication and Authorization
 
 Anyone can deposit and remote invoke ZetaChain contracts.