AutoGuard-diff.gitlab-ci.yml

spec:
  inputs:
    old_dir: 
        default: 'openapi-$CI_MERGE_REQUEST_TARGET_BRANCH_NAME'
    new_dir: 
        default: 'openapi-$CI_MERGE_REQUEST_SOURCE_BRANCH_NAME'
---

autoguard-diff:
  stage: autoguard-diff
  image:
    name: openapitools/openapi-diff
    entrypoint: [""]
  variables:
    OLD_DIR: $[[inputs.old_dir]]
    NEW_DIR: $[[inputs.new_dir]]
  artifacts:
    when: always
    paths:
      - "oas_diff/*"
  script: |
    set +e
    EMPTY_OAS='{  "openapi" : "3.0.1",  "info" : {    "title" : "",    "description" : "Spring Profile: ???",    "version" : ""  },  "paths" : {  },  "components" : {    "schemas" : {    }  }}'
    
    echo $EMPTY_OAS > empty.json
    
    echo $(find "$OLD_DIR" -type f | sed "s|$OLD_DIR/||" | sort) > old_files
    echo $(find "$NEW_DIR" -type f | sed "s|$NEW_DIR/||" | sort) > new_files
    
    COMMON_FILES=$(comm -12 old_files new_files)
    OTHER_FILES=$(comm -3 old_files new_files)
    
    STATUS=0
    
    mkdir oas_diff
    
    for p in $COMMON_FILES; do
      echo "Analyzing existing configuration $p"
      java -jar /app/openapi-diff.jar --fail-on-incompatible --html "oas_diff/$p.html" $OLD_DIR/$p $NEW_DIR/$p > /dev/null
      EXIT_CODE=$?
      STATUS=$((STATUS + EXIT_CODE))
    done

    for p in $OTHER_FILES; do
      if [ -f "$OLD_DIR/$p" ]; then
        echo "Analyzing deleted configuration $p"
        java -jar /app/openapi-diff.jar --fail-on-incompatible --html "oas_diff/$p.html" $OLD_DIR/$p empty.json > /dev/null
        EXIT_CODE=$?
        STATUS=$((STATUS + EXIT_CODE))
      else
        echo "Analyzing added configuration $p"
        java -jar /app/openapi-diff.jar --fail-on-incompatible --html "oas_diff/$p.html" empty.json $NEW_DIR/$p > /dev/null
        EXIT_CODE=$?
        STATUS=$((STATUS + EXIT_CODE))
      fi
    done
    
    set -e

    if [ $STATUS -gt 0 ]; then 
      echo -e "\e[31mBreaking changes detected"
      exit 1
    fi