[protoc] Automatically remove trailing spaces in generated java files

Author: jankeromnes

.pre-commit-config.yaml

@@ -6,8 +6,6 @@ repos:
       #  args: [--allow-multiple-documents]
       # - id: end-of-file-fixer
       - id: trailing-whitespace
-        exclude: .*/src/main/java/io/gitpod/supervisor/api/.*
-
       - id: check-symlinks
       - id: mixed-line-ending
       - id: check-case-conflict

components/supervisor-api/generate.sh

@@ -52,6 +52,8 @@ local_java_protoc() {
         --grpc-java_out=java/src/main/java \
         --java_out=java/src/main/java \
         ./*.proto
+    # remove trailing spaces
+    find components/supervisor-api/java/src/main/java/io/gitpod/supervisor/api -maxdepth 1 -name "*.java" -exec sed -i -e "s/[[:space:]]*$//" {} \;
     # revert Java reserved keywords
     sed -i 's/private_visibility = 0;/private = 0;/g' status.proto
     sed -i 's/public_visibility = 1;/public = 1;/g' status.proto