Gradleの`-m`、`--dry-run`オプションでタスクの実行計画を確認する

はじめに

• 既存のGradleのビルドパイプライン内でpublishAllPublicationsToMavenRepositoryを実行する前に、新たにtestタスクを追加したい要件がありました

結論

• -mまたは--dry-runオプションを付ける事で、実行されるタスクの一覧が確認可能です

Run Gradle with all task actions disabled. Use this to show which task would have executed.

参考：Command-Line Interface Reference - Execution options

確認したこと

publishAllPublicationsToMavenRepositoryタスク単体での実行

PS C:\Users\yoyoyo-pg\git\gradle-sample> .\gradlew publishAllPublicationsToMavenRepository --dry-run                                                        
:lib:compileJava SKIPPED
:lib:processResources SKIPPED
:lib:classes SKIPPED
:lib:jar SKIPPED
:lib:generateMetadataFileForMavenPublication SKIPPED
:lib:generatePomFileForMavenPublication SKIPPED
:lib:publishMavenPublicationToMavenRepository SKIPPED
:lib:publishAllPublicationsToMavenRepository SKIPPED

BUILD SUCCESSFUL in 617ms

publishAllPublicationsToMavenRepositoryの前にtestタスクを実行

PS C:\Users\yoyoyo-pg\git\gradle-sample> .\gradlew test publishAllPublicationsToMavenRepository --dry-run
:lib:compileJava SKIPPED
:lib:processResources SKIPPED
:lib:classes SKIPPED
:lib:jar SKIPPED
:lib:compileTestJava SKIPPED
:lib:processTestResources SKIPPED
:lib:testClasses SKIPPED
:lib:test SKIPPED
:lib:generateMetadataFileForMavenPublication SKIPPED
:lib:generatePomFileForMavenPublication SKIPPED
:lib:publishMavenPublicationToMavenRepository SKIPPED
:lib:publishAllPublicationsToMavenRepository SKIPPED

diffの内容

:lib:compileJava SKIPPED
:lib:processResources SKIPPED
:lib:classes SKIPPED
:lib:jar SKIPPED
+ :lib:compileTestJava SKIPPED
+ :lib:processTestResources SKIPPED
+ :lib:testClasses SKIPPED
+ :lib:test SKIPPED
:lib:generateMetadataFileForMavenPublication SKIPPED
:lib:generatePomFileForMavenPublication SKIPPED
:lib:publishMavenPublicationToMavenRepository SKIPPED
:lib:publishAllPublicationsToMavenRepository SKIPPED