elasticsearch.formatting.gradle

/*
 * Copyright Elasticsearch B.V. and/or licensed to Elasticsearch B.V. under one
 * or more contributor license agreements. Licensed under the Elastic License
 * 2.0 and the Server Side Public License, v 1; you may not use this file except
 * in compliance with, at your election, the Elastic License 2.0 or the Server
 * Side Public License, v 1.
 */

import org.elasticsearch.gradle.internal.ElasticsearchJavaPlugin

/*
 * This script plugin configures formatting for Java source using Spotless
 * for Gradle. Since the act of formatting existing source can interfere
 * with developers' workflows, we don't automatically format all code
 * (yet). Instead, we maintain a list of projects that are excluded from
 * formatting, until we reach a point where we can comfortably format them
 * in one go without too much disruption.
 *
 * Any new sub-projects must not be added to the exclusions list!
 *
 * To perform a reformat, run:
 *
 *     ./gradlew spotlessApply
 *
 * To check the current format, run:
 *
 *     ./gradlew spotlessJavaCheck
 *
 * This is also carried out by the `precommit` task.
 *
 * For more about Spotless, see:
 *
 * https://github.com/diffplug/spotless/tree/master/plugin-gradle
 */

// Do not add new sub-projects here!
def projectPathsToExclude = [
  ':client:benchmark',
  ':client:client-benchmark-noop-api-plugin',
  ':client:rest',
  ':client:rest-high-level',
  ':client:sniffer',
  ':client:test',
  ':example-plugins:custom-settings',
  ':example-plugins:custom-significance-heuristic',
  ':example-plugins:custom-suggester',
  ':example-plugins:painless-whitelist',
  ':example-plugins:rescore',
  ':example-plugins:rest-handler',
  ':example-plugins:script-expert-scoring',
  ':example-plugins:security-authorization-engine',
  ':libs:elasticsearch-cli',
  ':libs:elasticsearch-core',
  ':libs:elasticsearch-dissect',
  ':libs:elasticsearch-geo',
  ':libs:elasticsearch-grok',
  ':libs:elasticsearch-nio',
  ':libs:elasticsearch-plugin-classloader',
  ':libs:elasticsearch-secure-sm',
  ':libs:elasticsearch-ssl-config',
  ':libs:elasticsearch-x-content',
  ':modules:aggs-matrix-stats',
  ':modules:analysis-common',
  ':modules:ingest-common',
  ':modules:ingest-geoip',
  ':modules:ingest-user-agent',
  ':modules:lang-expression',
  ':modules:lang-mustache',
  ':modules:lang-painless',
  ':modules:lang-painless:spi',
  ':modules:mapper-extras',
  ':modules:parent-join',
  ':modules:percolator',
  ':modules:rank-eval',
  ':modules:reindex',
  ':modules:repository-url',
  ':modules:systemd',
  ':modules:tasks',
  ':modules:transport-netty4',
  ':plugins:analysis-icu',
  ':plugins:analysis-kuromoji',
  ':plugins:analysis-nori',
  ':plugins:analysis-phonetic',
  ':plugins:analysis-smartcn',
  ':plugins:analysis-stempel',
  ':plugins:analysis-ukrainian',
  ':plugins:discovery-azure-classic',
  ':plugins:discovery-ec2',
  ':plugins:discovery-ec2:qa:amazon-ec2',
  ':plugins:discovery-gce',
  ':plugins:discovery-gce:qa:gce',
  ':plugins:ingest-attachment',
  ':plugins:mapper-annotated-text',
  ':plugins:mapper-murmur3',
  ':plugins:mapper-size',
  ':plugins:repository-azure',
  ':plugins:repository-gcs',
  ':plugins:repository-hdfs',
  ':plugins:repository-hdfs:hadoop-common',
  ':plugins:repository-s3',
  ':plugins:store-smb',
  ':plugins:transport-nio',
  ':qa:die-with-dignity',
  ':rest-api-spec',
  ':test:fixtures:geoip-fixture',
  ':test:fixtures:krb5kdc-fixture',
  ':test:fixtures:old-elasticsearch',
  ':test:framework',
  ':test:logger-usage',
  ':x-pack:license-tools',
  ':x-pack:plugin',
  ':x-pack:plugin:analytics',
  ':x-pack:plugin:async-search',
  ':x-pack:plugin:async-search:qa',
  ':x-pack:plugin:async-search:qa:security',
  ':x-pack:plugin:autoscaling:qa:rest',
  ':x-pack:plugin:ccr',
  ':x-pack:plugin:ccr:qa',
  ':x-pack:plugin:ccr:qa:rest',
  ':x-pack:plugin:core',
  ':x-pack:plugin:data-streams:qa:multi-node',
  ':x-pack:plugin:data-streams:qa:rest',
  ':x-pack:plugin:deprecation',
  ':x-pack:plugin:enrich:qa:common',
  ':x-pack:plugin:enrich:qa:rest',
  ':x-pack:plugin:enrich:qa:rest-with-advanced-security',
  ':x-pack:plugin:enrich:qa:rest-with-security',
  ':x-pack:plugin:eql',
  ':x-pack:plugin:eql:qa',
  ':x-pack:plugin:eql:qa:common',
  ':x-pack:plugin:eql:qa:rest',
  ':x-pack:plugin:eql:qa:security',
  ':x-pack:plugin:fleet:qa:rest',
  ':x-pack:plugin:graph',
  ':x-pack:plugin:graph:qa:with-security',
  ':x-pack:plugin:identity-provider',
  ':x-pack:plugin:identity-provider:qa:idp-rest-tests',
  ':x-pack:plugin:ilm',
  ':x-pack:plugin:ilm:qa:multi-node',
  ':x-pack:plugin:ilm:qa:rest',
  ':x-pack:plugin:ilm:qa:with-security',
  ':x-pack:plugin:mapper-constant-keyword',
  ':x-pack:plugin:mapper-flattened',
  ':x-pack:plugin:ml',
  ':x-pack:plugin:ml:qa:basic-multi-node',
  ':x-pack:plugin:ml:qa:disabled',
  ':x-pack:plugin:ml:qa:ml-with-security',
  ':x-pack:plugin:ml:qa:native-multi-node-tests',
  ':x-pack:plugin:ml:qa:single-node-tests',
  ':x-pack:plugin:monitoring',
  ':x-pack:plugin:ql',
  ':x-pack:plugin:repository-encrypted:qa:azure',
  ':x-pack:plugin:repository-encrypted:qa:gcs',
  ':x-pack:plugin:repository-encrypted:qa:s3',
  ':x-pack:plugin:rollup',
  ':x-pack:plugin:rollup:qa:rest',
  ':x-pack:plugin:search-business-rules',
  ':x-pack:plugin:security',
  ':x-pack:plugin:security:cli',
  ':x-pack:plugin:security:qa:basic-enable-security',
  ':x-pack:plugin:security:qa:security-basic',
  ':x-pack:plugin:security:qa:security-disabled',
  ':x-pack:plugin:security:qa:security-not-enabled',
  ':x-pack:plugin:security:qa:security-trial',
  ':x-pack:plugin:security:qa:service-account',
  ':x-pack:plugin:security:qa:smoke-test-all-realms',
  ':x-pack:plugin:security:qa:tls-basic',
  ':x-pack:plugin:shutdown:qa:multi-node',
  ':x-pack:plugin:spatial',
  ':x-pack:plugin:sql',
  ':x-pack:plugin:sql:jdbc',
  ':x-pack:plugin:sql:qa',
  ':x-pack:plugin:sql:qa:jdbc',
  ':x-pack:plugin:sql:qa:jdbc:security',
  ':x-pack:plugin:sql:qa:security',
  ':x-pack:plugin:sql:sql-action',
  ':x-pack:plugin:sql:sql-cli',
  ':x-pack:plugin:sql:sql-client',
  ':x-pack:plugin:sql:sql-proto',
  ':x-pack:plugin:stack:qa:rest',
  ':x-pack:plugin:text-structure:qa:text-structure-with-security',
  ':x-pack:plugin:transform',
  ':x-pack:plugin:transform:qa:multi-node-tests',
  ':x-pack:plugin:transform:qa:single-node-tests',
  ':x-pack:plugin:vectors',
  ':x-pack:plugin:watcher',
  ':x-pack:plugin:watcher:qa:rest',
  ':x-pack:plugin:watcher:qa:with-monitoring',
  ':x-pack:plugin:watcher:qa:with-security',
  ':x-pack:plugin:wildcard',
  ':x-pack:qa',
  ':x-pack:qa:runtime-fields:core-with-mapped',
  ':x-pack:qa:runtime-fields:core-with-search',
  ':x-pack:qa:runtime-fields:with-security',
  ':x-pack:qa:security-example-spi-extension',
  ':x-pack:test:idp-fixture',
  ':x-pack:test:smb-fixture'
]

subprojects {
  plugins.withType(ElasticsearchJavaPlugin).whenPluginAdded {
    if (projectPathsToExclude.contains(project.path) == false) {
      project.apply plugin: "com.diffplug.spotless"

      spotless {
        java {
          if (project.path == ':server') {
            target 'src/*/java/org/elasticsearch/action/admin/cluster/repositories/**/*.java',
                   'src/*/java/org/elasticsearch/action/admin/cluster/snapshots/**/*.java',
                   'src/*/java/org/elasticsearch/index/snapshots/**/*.java',
                   'src/*/java/org/elasticsearch/repositories/**/*.java',
                   'src/*/java/org/elasticsearch/snapshots/**/*.java'

            targetExclude 'src/main/java/org/elasticsearch/search/aggregations/metrics/HyperLogLogPlusPlus.java'
          } else {
            // Normally this isn't necessary, but we have Java sources in
            // non-standard places
            target 'src/**/*.java'
          }

          toggleOffOn('@formatter:off', '@formatter:on') // use `@formatter:off` and `@formatter:on` to toggle formatting - ONLY IF STRICTLY NECESSARY
          removeUnusedImports()
          importOrderFile rootProject.file('build-tools-internal/elastic.importorder')
          eclipse().configFile rootProject.file('build-tools-internal/formatterConfig.xml')
          trimTrailingWhitespace()

          // Sometimes Spotless will report a "misbehaving rule which can't make up its
          // mind" and will recommend enabling the `paddedCell()` setting. If you
          // enabled this setting and run the format check again,
          // Spotless will write files to
          // `$PROJECT/build/spotless-diagnose-java/` to aid diagnosis. It writes
          // different copies of the formatted files, so that you can see how they
          // differ and infer what is the problem.

          // The `paddedCell()` option is disabled for normal operation so that any
          // misbehaviour is detected, and not just suppressed. You can enabled the
          // option from the command line by running Gradle with `-Dspotless.paddedcell`.
          if (providers.systemProperty('spotless.paddedcell').forUseAtConfigurationTime().isPresent()) {
            paddedCell()
          }
        }
      }

      tasks.named("precommit").configure { dependsOn 'spotlessJavaCheck' }
    }
  }
}