Respect custom Maven build directories - #1949
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## Summary
- Derive the default Docker output directory from `${project.build.directory}` instead of the fixed `target/docker`.
- Preserve explicit `docker.target.dir` and `<outputDirectory>` overrides.
- Add path-level and Maven integration coverage, plus documentation and changelog updates.
## Problem
Projects that customize Maven’s build directory still default Docker Maven Plugin working files to `target/docker`. The static default ignores `${project.build.directory}` and separates plugin output from the project’s configured build tree.
## Compatibility
The public configuration format is unchanged. Projects using Maven’s standard `target` directory continue to resolve to `target/docker`, while explicit output directory settings retain precedence.
## Verification
- `mise exec java@temurin-11 -- ./mvnw -B -C -V -ntp -Dtest=BuildDirsTest test` — 3 tests, 0 failures
- `mise exec java@temurin-11 -- ./mvnw -B -C -V -ntp clean install -Pjacoco` — 972 tests, 0 failures, 0 errors, 6 skipped
- `mise exec java@temurin-11 -- ./mvnw -B -C -V -ntp -f it/custom-build-directory/pom.xml clean verify` — Docker-free source archive generated below the custom Maven build directory
This reimplements fabric8io#1855 against the current master branch. Thanks to @jdelker for the original report and implementation.
Signed-off-by: Marukome0743 <jambalaya.pyoncafe@gmail.com>
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Summary
${project.build.directory}instead of the fixedtarget/docker.docker.target.dirand<outputDirectory>overrides.Problem
Projects that customize Maven’s build directory still default Docker Maven Plugin working files to
target/docker. The static default ignores${project.build.directory}and separates plugin output from the project’s configured build tree.Compatibility
The public configuration format is unchanged. Projects using Maven’s standard
targetdirectory continue to resolve totarget/docker, while explicit output directory settings retain precedence.Verification
mise exec java@temurin-11 -- ./mvnw -B -C -V -ntp -Dtest=BuildDirsTest test— 3 tests, 0 failuresmise exec java@temurin-11 -- ./mvnw -B -C -V -ntp clean install -Pjacoco— 972 tests, 0 failures, 0 errors, 6 skippedmise exec java@temurin-11 -- ./mvnw -B -C -V -ntp -f it/custom-build-directory/pom.xml clean verify— Docker-free source archive generated below the custom Maven build directoryThis reimplements #1855 against the current master branch. Thanks to @jdelker for the original report and implementation.
Signed-off-by: Marukome0743 jambalaya.pyoncafe@gmail.com