mvnlog --web: local HTTP server for interactive build report viewer - #12885
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… viewer Adds a --web flag to mvnlog that starts a local HTTP server serving an interactive single-page build report viewer. The viewer reads from the existing BuildReportCollector JSON format (flat top-level fields, ISO timestamps and durations, per-module/per-mojo output arrays). Features: - Loopback-only binding for security (localhost only) - Path traversal protection with regex + normalize() - Auto-open browser on supported desktops - Gantt chart timeline of module builds - Per-mojo execution details with inline log viewing - Problems table with search, filter, and sort - Failure details with stack trace highlighting - Virtual-scrolling full build log viewer - Light/dark theme via prefers-color-scheme - 30-minute inactivity auto-shutdown - Configurable port via --port flag - System font stack (no external CDN dependencies) Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
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elharo
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static HTML should be enough. The issue specifically does not ask for a local web server. This is a lot of extra dependencies with additional maintenance burden and security surface. I'm not convinced this carries its weight.
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Summary
Adds web-based build report viewing to
mvnlog(addresses #12645), rebased cleanly on thefeature/mvnlogPR chain (#12694 → #12695 → #12697 → #12698 → #12699):--webflag starts a local HTTP server bound to loopback only (not 0.0.0.0)--portconfigures the server port (default 8080, auto-fallback to random available port)normalize().startsWith()checksCountDownLatchafter 30 minutes of inactivity (noSystem.exit())-Dmaven.build.report.skip=truetarget/build-reports/withbuild-report-latest.jsoncopyReview feedback addressed (from #12716)
LogEventAPI (event.level().name(),event.timestamp(),event.message()) instead of string parsingCollections.synchronizedList(new ArrayList<>())instead ofCopyOnWriteArrayListfor performance@since 4.0.0→@since 4.1.0inpackage-info.javalastRequestTimeis an instance field (not static)mojoFinished(ExecutionEvent, String)toBuildEventListenerinterfaceFiles changed
LogOptions.java(addedweb(),port()),package-info.java(fixed@since)CommonsCliLogOptions.java,LogInvoker.java,report.htmlBuildEventListener.java,BuildReportEventListener.java,LoggingExecutionListener.java,SimpleBuildEventListener.javaMachineBuildEventListenerTest.java,RichBuildEventListenerTest.javaTest plan
mvn verify -pl impl/maven-cli -am -DskipTestscompiles cleanly (verified locally)mvn test -pl impl/maven-cli -ampasses (4 pre-existing MavenInvokerTest failures unrelated to this PR)mvnlog --webstarts HTTP server on localhost:8080mvnlog --web --port 9090uses custom port-Dmaven.build.report.skip=trueprevents report generationtarget/build-reports/🤖 Generated with Claude Code