Add protolint to Makefile

From https://github.com/yoheimuta/protolint this linter is configurable
and much more strict than protoc.

1 files changed, 32 insertions, 0 deletions

diff --git a/proto/.protolint.yaml b/proto/.protolint.yaml
new file mode 100644
index 000000000..995f81bb7
--- /dev/null
+++ b/proto/.protolint.yaml
@@ -0,0 +1,32 @@
+---
+lint:
+  rules:
+    all_default: true
+    remove:
+      # Our use of enums isn't conforming to best practices, and it's hard to
+      # change retroactively. We may eventually enable these linters and then
+      # create exceptions for preexisting definitions.
+      - ENUM_FIELD_NAMES_PREFIX
+      - ENUM_FIELD_NAMES_ZERO_VALUE_END_WITH
+      # We don't specify any line length limits.
+      - MAX_LINE_LENGTH
+      # Many of our definitions aren't commented at all. We want to eventually
+      # opt-in to enable these linting warnings, but right now we just want to
+      # get protolint included in our workflow with minimal required changes.
+      - FILE_HAS_COMMENT
+      - RPCS_HAVE_COMMENT
+      - FIELDS_HAVE_COMMENT
+      - SERVICES_HAVE_COMMENT
+      - MESSAGES_HAVE_COMMENT
+      - ENUMS_HAVE_COMMENT
+      - ENUM_FIELDS_HAVE_COMMENT
+      # Many of our fields and messages have prepositions in them, and
+      # furthermore this rule doesn't feel all that sensible after all. We thus
+      # disable it.
+      - FIELD_NAMES_EXCLUDE_PREPOSITIONS
+      - MESSAGE_NAMES_EXCLUDE_PREPOSITIONS
+
+  rules_option:
+    file_names_lower_snake_case:
+      excludes:
+        - proto/repository-service.proto