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very slow. It takes about 4m30 to execute | |
mvn clean package -DskipTests while a gradle counterpart | |
<code>./gradlew clean jar</code> completes in 40 seconds on the same hardware. Using the gradle build cache.</li><li>Incremental build- Gradle provides better incremental build support. Subsequent builds run in very little time.</li><li>Caching of tests execution - Gradle build cache also keeps track of test successes with respect to the dependencies and can do test retries of just what has failed.</li><li>Better handling of multi module projects - Bookkeeper is a multi module project where bookkeeper-server module for an example depends on following modules <ul><li>bookkeeper-stats</li><li>cpu-affinity</li><li>bookkeeper-common</li><li>bookkeeper-common-allocator</li><li>bookkeeper-http:http-server</li><li>bookkeeper-proto</li><li>circe-checksum</li><li>bookkeeper-tools-framework</li></ul>If change is made on any of the above mentioned dependent modules, building module <code>bookkeeper-server</code> will pick up those changes. | |
While in case of maven changed modules had to be built explicitly in order for the changes to be picked up. | |
For instance If a change is made in <code>bookkeeper-common</code> with gradle | |
<code>./gradlew bookkeeper-server:test</code> will pick up those changes and run tests based on those changes. | |
While on the other hands for maven <code>mvn install bookkeeper-common</code> had to run before running mvn build <code>bookkeeper-server</code></li></ul><h3 class="anchor anchorWithStickyNavbar_LWe7" id="public-interfaces">Public Interfaces<a href="#public-interfaces" class="hash-link" aria-label="Direct link to Public Interfaces" title="Direct link to Public Interfaces"></a></h3><p>N/A</p><h3 class="anchor anchorWithStickyNavbar_LWe7" id="proposed-changes">Proposed Changes<a href="#proposed-changes" class="hash-link" aria-label="Direct link to Proposed Changes" title="Direct link to Proposed Changes"></a></h3><ul><li>Every module and sub module which are currently being built using maven would be built using gradle.</li><li>Run all the unit tests, functional tests etc using gradle.</li><li>Integrating gradle build to CI/CD pipeline </li><li>Build ASF release capability using gradle</li><li>Remove Maven build</li></ul><h3 class="anchor anchorWithStickyNavbar_LWe7" id="compatibility-deprecation-and-migration-plan">Compatibility, Deprecation, and Migration Plan<a href="#compatibility-deprecation-and-migration-plan" class="hash-link" aria-label="Direct link to Compatibility, Deprecation, and Migration Plan" title="Direct link to Compatibility, Deprecation, and Migration Plan"></a></h3><p>Since this is migration to the new build system using gradle, it should be done at phases.</p><ul><li>Phase 1: After phase one Bookkeeper should be able to build and run unit tests and integration tests using gradle. | |
After the end of this phase CI/CD pipeline for BookKeeper still remains to be the existing one. | |
A sample PR may look like this.<ul><li>Timeline: 1.5 Week</li></ul></li><li>Phase 2: Spin off new CI job for gradle which would run in parallel with existing maven based one. | |
In this phase any dependency upgrade should be done at both maven as well as gradle based build system.<ul><li>Timeline: 1 Week</li></ul></li><li>Phase 3: Gradle based build should be enhanced to do full CI/CD including release and a minor release should be done completely using gradle based CI/CD pipeline. | |
Update release docuementation as how to do release using gradle based pipeline, update information on how to setup major IDE such as IntelliJ. <ul><li>Timeline: 1 Week</li></ul></li><li>Phase 4: Shut down maven based CI/CD pipeline. Remove all pom.xml files<ul><li>Timeline: Based on confidence on the new system by the community</li></ul></li></ul><h3 class="anchor anchorWithStickyNavbar_LWe7" id="test-plan">Test Plan<a href="#test-plan" class="hash-link" aria-label="Direct link to Test Plan" title="Direct link to Test Plan"></a></h3><p>Compare test results with maven based build vs gradle based build to verify that gradle based | |
build is running exact same set of tests as maven based build.</p><h3 class="anchor anchorWithStickyNavbar_LWe7" id="rejected-alternatives">Rejected Alternatives<a href="#rejected-alternatives" class="hash-link" aria-label="Direct link to Rejected Alternatives" title="Direct link to Rejected Alternatives"></a></h3><p>N/A</p></article></div><div class="col col--2"><div class="tableOfContents_bqdL thin-scrollbar"><ul class="table-of-contents table-of-contents__left-border"><li><a href="#motivation" class="table-of-contents__link toc-highlight">Motivation</a></li><li><a href="#public-interfaces" class="table-of-contents__link toc-highlight">Public Interfaces</a></li><li><a href="#proposed-changes" class="table-of-contents__link toc-highlight">Proposed Changes</a></li><li><a href="#compatibility-deprecation-and-migration-plan" class="table-of-contents__link toc-highlight">Compatibility, Deprecation, and Migration Plan</a></li><li><a href="#test-plan" class="table-of-contents__link toc-highlight">Test Plan</a></li><li><a href="#rejected-alternatives" class="table-of-contents__link toc-highlight">Rejected Alternatives</a></li></ul></div></div></div></main></div><footer class="footer footer--dark"><div class="container container-fluid"><div class="row footer__links"><div class="col footer__col"><div class="footer__title">Documentation</div><ul class="footer__items clean-list"><li class="footer__item"><a class="footer__link-item" href="/docs/overview">Overview</a></li><li class="footer__item"><a class="footer__link-item" href="/docs/getting-started/installation">Getting started</a></li><li class="footer__item"><a class="footer__link-item" href="/docs/deployment/manual">Deployment</a></li><li class="footer__item"><a class="footer__link-item" href="/docs/admin/bookies">Administration</a></li><li class="footer__item"><a class="footer__link-item" href="/docs/api/overview">API</a></li><li class="footer__item"><a class="footer__link-item" 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