mvnlog: build log viewer, integration tests, script routing - #12699
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Add the mvnlog tool for viewing and analyzing build-report JSON files. Includes BuildReportRenderer for human-readable output, SimpleJsonReader for dependency-free JSON parsing, shell scripts (mvnlog/mvnlog.cmd), and --log routing in mvn/mvn.cmd. Also adds integration tests for build report generation, console modes, and the mvnlog viewer, plus --console=verbose flags for ITs that depend on verbose output. Part 5 of the #12572 split (depends on warning mode PR #12698). Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
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Summary
Part 5 of the logging feature chain. Depends on #12698 (warning mode).
Adds the
mvnlogtool — a CLI viewer for build-report JSON files — plus integration tests for the entire feature set and script routing.mvnlog viewer
mvnlog/mvnlog --json— view the latest build report as human-readable or raw JSONBuildReportRenderer— renders reports with ANSI colors, timing, failure detailsSimpleJsonReader— dependency-free streaming JSON parserLogInvoker/LogParser/LogContext— invoker chain for the toolCommonsCliLogOptions/LogOptions— CLI option parsingMavenLogCling— entry point classScript routing
mvn --logroutes toMavenLogCling(bothmvnandmvn.cmd)--logfrom colliding with--log-fileprefix matchingmvnlog/mvnlog.cmdshell scripts for direct invocationcomponent.xmlupdated to includemvnlogin the distributionIntegration tests
MavenITgh12571BuildReportTest— 8 IT tests covering build report JSON, console modes (plain/machine/verbose), warning mode, version info on failure, and mvnlog viewer--console=verboseto preserve expected output formatFiles changed (36 files, ~2500 insertions)
Tools.java,LogOptions,ParserRequestMavenLogClingLogInvoker,LogParser,LogContext,CommonsCliLogOptionsBuildReportRenderer,SimpleJsonReaderBuiltinShellCommandRegistryFactory(mvnlog command)mvn,mvn.cmd,mvnlog,mvnlog.cmd,component.xmlCommonsCliOptions(+--logconstant/option)BuildReportRendererTest,SimpleJsonReaderTestMavenITgh12571BuildReportTest+ 11 existing ITs + 4 resource POMsPR chain (complete)
mvnlogviewerTest plan
mvn compile— clean compilemvn test -pl impl/maven-cli— all tests pass🤖 Generated with Claude Code