[#45] Add buf linter call

Signed-off-by: Stanislav Bogatyrev <stanislav@nspcc.ru>

.gitignore

@@ -1,2 +1,2 @@
-vendor
-**/*.pb.go
+.idea
+

Makefile

@@ -1,36 +1,21 @@
-NETMAP_VERSION=v1.7.0
-GOGOPROTO_VERSION=v1.3.1
+#!/usr/bin/make -f
+SHELL=bash
 
-NETMAP_URL=https://github.com/nspcc-dev/netmap/archive/$(NETMAP_VERSION).tar.gz
-GOGOPROTO_URL=https://github.com/gogo/protobuf/archive/$(GOGOPROTO_VERSION).tar.gz
+# BRanch to match for BRaking changes
+BRBR?=master
 
-.PHONY: deps docgen
-
-deps:
-	@echo "⇒ Prepare"
-	@rm -rf ./vendor/github.com/gogo/protobuf
-	@rm -rf ./vendor/github.com/nspcc-dev/netmap
-	@mkdir -p ./vendor/github.com/gogo/protobuf
-	@mkdir -p ./vendor/github.com/nspcc-dev/netmap
-
-	@echo "⇒ Download"
-	@curl -sL -o ./vendor/gogo.tar.gz $(GOGOPROTO_URL)
-	@curl -sL -o ./vendor/netmap.tar.gz $(NETMAP_URL)
-
-	@echo "⇒ Vendoring"
-	@tar -xzf ./vendor/gogo.tar.gz --strip-components 1 -C ./vendor/github.com/gogo/protobuf
-	@tar -xzf ./vendor/netmap.tar.gz --strip-components 1 -C ./vendor/github.com/nspcc-dev/netmap
-
-	@echo "⇒ Cleanup"
-	@rm ./vendor/gogo.tar.gz
-	@rm ./vendor/netmap.tar.gz
+.PHONY: lint
+lint:
+	buf check lint
+	buf check breaking --against-input '.git#branch=$(BRBR)'
 
+.PHONY: doc
 # Regenerate documentation for protot files:
-docgen: deps
-	@for f in `find . -type f -name '*.proto' -not -path './vendor/*' -exec dirname {} \; | sort -u `; do \
+doc:
+	@for f in `find . -type f -name '*.proto' -exec dirname {} \; | sort -u `; do \
 		echo "${B}${G}⇒ Documentation for $$(basename $$f) ${R}"; \
 		protoc \
 			--doc_opt=.github/markdown.tmpl,$${f}.md \
-			--proto_path=.:./vendor:/usr/local/include \
+			--proto_path=.:/usr/local/include \
 			--doc_out=proto-docs/ $${f}/*.proto; \
 	done

buf.yaml

@@ -0,0 +1,10 @@
+lint:
+  use:
+    - DEFAULT
+    - COMMENTS
+    - ENUM_FIRST_VALUE_ZERO
+  except:
+    - PACKAGE_DIRECTORY_MATCH
+    - PACKAGE_VERSION_SUFFIX
+    - ENUM_VALUE_PREFIX
+    - ENUM_ZERO_VALUE_SUFFIX