Add Makefile targets to fetch schema from cli

Signed-off-by: Hasan Turken <turkenh@gmail.com>

Makefile

@@ -53,6 +53,31 @@ DOCKER_REGISTRY ?= crossplane
 IMAGES = provider-jet-template provider-jet-template-controller
 -include build/makelib/image.mk
 
+# ====================================================================================
+# Setup Terraform for fetching provider schema
+TERRAFORM := $(TOOLS_HOST_DIR)/terraform-$(TERRAFORM_VERSION)
+TERRAFORM_WORKDIR := $(WORK_DIR)/terraform
+TERRAFORM_PROVIDER_SCHEMA := config/schema.json
+
+$(TERRAFORM):
+	@$(INFO) installing terraform $(HOSTOS)-$(HOSTARCH)
+	@mkdir -p $(TOOLS_HOST_DIR)/tmp-terraform
+	@curl -fsSL https://releases.hashicorp.com/terraform/1.1.4/terraform_1.1.4_$(SAFEHOST_PLATFORM).zip -o $(TOOLS_HOST_DIR)/tmp-terraform/terraform.zip
+	@unzip $(TOOLS_HOST_DIR)/tmp-terraform/terraform.zip -d $(TOOLS_HOST_DIR)/tmp-terraform
+	@mv $(TOOLS_HOST_DIR)/tmp-terraform/terraform $(TERRAFORM)
+	@rm -fr $(TOOLS_HOST_DIR)/tmp-terraform
+	@$(OK) installing terraform $(HOSTOS)-$(HOSTARCH)
+
+$(TERRAFORM_PROVIDER_SCHEMA): $(TERRAFORM)
+	@$(INFO) generating provider schema for $(TERRAFORM_PROVIDER_SOURCE) $(TERRAFORM_PROVIDER_VERSION)
+	@mkdir -p $(TERRAFORM_WORKDIR)
+	@echo '{"terraform":[{"required_providers":[{"provider":{"source":"'"$(TERRAFORM_PROVIDER_SOURCE)"'","version":"'"$(TERRAFORM_PROVIDER_VERSION)"'"}}],"required_version":"'"$(TERRAFORM_VERSION)"'"}]}' > $(TERRAFORM_WORKDIR)/main.tf.json
+	@$(TERRAFORM) -chdir=$(TERRAFORM_WORKDIR) init > $(TERRAFORM_WORKDIR)/terraform-logs.txt 2>&1
+	@$(TERRAFORM) -chdir=$(TERRAFORM_WORKDIR) providers schema -json=true > $(TERRAFORM_PROVIDER_SCHEMA) 2>> $(TERRAFORM_WORKDIR)/terraform-logs.txt
+	@$(OK) generating provider schema for $(TERRAFORM_PROVIDER_SOURCE) $(TERRAFORM_PROVIDER_VERSION)
+
+generate.init: $(TERRAFORM_PROVIDER_SCHEMA)
+
 # ====================================================================================
 # Targets