When you run Gradle with the continuous build option, Gradle executes the build as usual, except Gradle also registers the inputs to all tasks with a file watch service. At least one task that runs needs to define inputs to enter continuous build mode. You enable continuous build with the -t or -continuous command-line option along with whichever tasks you want to run (we call these task selectors). If you find that your build isn’t rebuilding with continuous build as you think it should, it could point to a problem in your build script. If you’re using well-behaved tasks, this shouldn’t be a problem for most builds. Using continuous buildĬontinuous build can be used with any task or set of tasks that have defined inputs and outputs. Since Gradle needs to know a task’s inputs and outputs for incremental builds, we had all the information necessary to start watching for changes. We also wanted the set of tasks to execute to be completely ad-hoc. We wanted any plugin to be able to leverage the power of continuous builds without having to supply additional information. With Maven, the same watch functionality needs to be implemented for each plugin or you have to use a plugin that has a predefined set of goals. There have been a few community plugins that add support for a Gradle “watch” mode that do something similar. We’ve also talked about using incremental builds to speed up your build-edit-build feedback loop by skipping unnecessary work. Now there’s another optimization available-one that allows you to get out of the way and let Gradle start the build for you.Īs of 2.5, Gradle supports continuous build execution, which will automatically re-execute builds when changes are detected to its inputs. In the past, we’ve recommended that you enable the Gradle Daemon (and parallel execution, with some caveats) to get the best performance out of Gradle. New Features Optimizing the build-edit-build loop
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