[alxndrsn]

Closes #104

What has been done to verify that this works as intended?

$ ./gradle-docker check jar
[gradle-docker] Checking for existing image...
[gradle-docker] Existing image found.
Starting a Gradle Daemon, 1 busy and 5 stopped Daemons could not be reused, use --status for details
> Task :generateBuildConfig UP-TO-DATE
> Task :compileBuildConfig UP-TO-DATE
> Task :compileJava UP-TO-DATE
> Task :processResources UP-TO-DATE
> Task :classes UP-TO-DATE
> Task :checkstyleMain UP-TO-DATE
> Task :compileTestJava UP-TO-DATE
> Task :processTestResources UP-TO-DATE
> Task :testClasses UP-TO-DATE
> Task :checkstyleTest UP-TO-DATE
> Task :test UP-TO-DATE
> Task :check UP-TO-DATE
> Task :jar UP-TO-DATE

BUILD SUCCESSFUL in 2s
10 actionable tasks: 10 up-to-date

$ REBUILD_GRADLE_DOCKER_IMAGE=1 ./gradle-docker check jar
[gradle-docker] Checking for existing image...
[gradle-docker] Building docker image...
[+] Building 1.7s (6/6) FINISHED                                                                                                                             docker:default
 => [internal] load build definition from Dockerfile                                                                                                                   0.0s
 => => transferring dockerfile: 152B                                                                                                                                   0.0s
 => [internal] load metadata for docker.io/library/eclipse-temurin:8-jdk                                                                                               1.3s
 => [internal] load .dockerignore                                                                                                                                      0.1s
 => => transferring context: 2B                                                                                                                                        0.0s
 => [1/2] FROM docker.io/library/eclipse-temurin:8-jdk@sha256:e9255b50040337b0dec91027868dca1952ef5441bf0c8f878c5f790eaedbfea2                                         0.0s
 => CACHED [2/2] WORKDIR /app                                                                                                                                          0.0s
 => exporting to image                                                                                                                                                 0.2s
 => => exporting layers                                                                                                                                                0.0s
 => => writing image sha256:8eaffad2481bdc6b5afbac145650c0aca2ca812110c0c3eac9d8ab77351e8dcf                                                                           0.1s
 => => naming to docker.io/library/gradlew-jdk-8                                                                                                                       0.0s
[gradle-docker] Docker image built.
Starting a Gradle Daemon, 1 busy and 1 incompatible and 5 stopped Daemons could not be reused, use --status for details
> Task :generateBuildConfig UP-TO-DATE
> Task :compileBuildConfig UP-TO-DATE
> Task :compileJava UP-TO-DATE
> Task :processResources UP-TO-DATE
> Task :classes UP-TO-DATE
> Task :checkstyleMain UP-TO-DATE
> Task :compileTestJava UP-TO-DATE
> Task :processTestResources UP-TO-DATE
> Task :testClasses UP-TO-DATE
> Task :checkstyleTest UP-TO-DATE
> Task :test UP-TO-DATE
> Task :check UP-TO-DATE
> Task :jar UP-TO-DATE

BUILD SUCCESSFUL in 2s
10 actionable tasks: 10 up-to-date

Why is this the best possible solution? Were any other approaches considered?

Alternative approaches:

• Remove direct gradlew usage completely, and only allow containerised approach. This is likely to be much more complicated and break existing workflows.
• More extensive documentation for setting up a dev env. Given the cadence of this project's development, this is likely to get out of date.

Are there any risks to merging this code? If so, what are they?

No risks - it does not modify existing workflows.