ITT 2017 - Etienne Studer - Product success as a function of build automation

Building, testing, assembling, and releasing software has become a very demanding and complex process over the past years. Multiple components built in multiple languages, distributed teams in different timezones working on different parts of the system, several stages of quality insurance, various software distribution channels, and so on. At the same time, the pressure to release new versions of the software has also tremendously increased and fast high-quality deliveries have become essential for the survival and success of many products.

A suitable platform to build and release your software needs to handle the high complexity of today’s build requirements while at the same time still scaling in terms of performance. Gradle is the most powerful player amongst the build platforms and is chosen by companies like LinkedIn, Netflix, and others that rely strategically on continuous and fast delivery of their software.

In this presentation, Etienne Studer explains how Gradle allows you to elegantly model your build requirements, how Gradle manages to scale its performance to very large builds, and how you can get deep insights into the behavior of your Gradle builds. Demos will be given on features like the Daemon, Composite Builds, Incremental Builds, Compile Avoidance, Build Cache, Build Scans, and other features that maybe sound a bit obscure to you right now but whose concepts and application you will soon understand and appreciate.

Transcript

1. Product success as a func.on of build automa.on ETIENNE STUDER, VP OF PRODUCT TOOLING, GRADLE INC.
2. | 2
3. | 3 E"enne Studer C: Gradle Inc. P: Gradle Enterprise E: e"enne@gradle.com T: @e"ennestuder G: github.com/e"ennestuder
4. Compe""on on the free market is fierce
5. Product market fit, delivery "me, delivery costs, and product quality are key to sustained success
6. SoFware has strong weight in the process from crea"ng a product to consuming a product
7. SoFware needs to be delivered fast, with high quality, and 
 with minimal costs
8. Op"mize soFware delivery through build automa"on to safe "me, achieve reproducibility, and enable developer produc"vity!
9. | 9 Idea7on Research Specifica7on Implementa7on Tes7ng Deployment Customer feedback Sales Marke7ng Requirements gathering boosts facilitates Build automa/on impact
10. Got Gradle?
11. | 11 DOWNLOADS/ MONTH 4.0M
12. Gradle 1-min intro
13. | 13 Gradle build execu/on Gradle build scripts Gradle tasks Gradle task execu/on 2-phase build: Configura/on phase → build task graph (DAG) Execu/on phase → execute task graph
14. | 14 Demo Gradle 1-min intro
15. Incremental builds
16. Typically, not much changes in the build between consecu/ve invoca/ons of the build. When liQle changes in the build, liQle work should be done by the build. Reuse outcomes of the previous run. Observa/on
17. Task inputs and outputs Only run a task if its input or outputs have changed since the previous run. Inputs —> Task —> Outputs Example: Compile task inputs: source files, compiler flags, etc. Compile task output: class files
18. | 18 Demo Incremental builds
19. Build cache
20. | 20 Build cache • Reuse outcomes of any previous run (rather than just the last) • Task output caching • Local cache and remote cache
21. | 21 Demo Build cache
22. | 22 Build cache Remote Cache Local Cache CI Developer
23. | 23 Build cache buildCache { local { enabled = !isCI } remote(HttpBuildCache) { url = ‘https://my.ge.server/cache/' push = isCI } }
24. | 24 • hQps:/ /docs.gradle.org/nightly/userguide/build_cache.html • Build cache implementa/on available in Gradle Enterprise Build cache
25. Compile avoidance & incremental compiler
26. | 26 Avoid was/ng /me compiling source classes that
 do not have to be compiled. Compile avoidance & incremental compiler
27. | 27 Demo Compile avoidance & incremental compiler
28. | 28 Compile avoidance & incremental compiler
29. | 29 • hQps:/ /blog.gradle.org/incremental-compiler-avoidance • hQps:/ /docs.gradle.org/current/userguide/java_plugin.html Compile avoidance & incremental compiler
30. Gradle daemon
31. | 31 Gradle builds executed much more quickly by a long-lived background process that avoids expensive bootstrapping and leverages caching. Gradle daemon
32. | 32 Demo Gradle daemon
33. | 33 • hQps:/ /docs.gradle.org/current/userguide/gradle_daemon.html Gradle daemon
34. Composite builds
35. | 35 Composite builds • Fix a bug in a library through app using project • Break down a monolith into mul/ple repos • Consume latests state of libraries in integra/ons builds
36. | 36 Demo Composite builds
37. | 37 • hQps:/ /blog.gradle.org/introducing-composite-builds • hQps:/ /blog.jetbrains.com/idea/2017/03/webinar-recording- composite-builds-with-gradle • hQps:/ /docs.gradle.org/current/userguide/ composite_builds.html Composite builds
38. IDE integra"on
39. | 39 IDE integra/on • Project import & synchroniza/on • Task execu/on • Test execu/on • Build execu/on insights Build is the single source of truth!
40. | 40 Tooling API Launcher Tooling API Server Cmd Line (build master) (cont integra/on) Gradle (daemon) IDE (developer)
41. | 41 Demo IDE integra/on
42. | 42 • hQps:/ /blog.gradle.org/announcing-buildship-2.0 • hQps:/ /marketplace.eclipse.org/content/buildship-gradle- integra/on IDE integra/on
43. Gradle Script Kotlin
44. | 44 Gradle Script Kotlin • Syntax highligh/ng • Quick documenta/on • Naviga/on to source • Auto-comple/on / content assist • Refactoring • High execu/on /me performance Build code is no different to applica5on code!
45. | 45 • hQps:/ /blog.gradle.org/kotlin-meets-gradle • hQps:/ /github.com/gradle/gradle-script-kotlin Gradle Script Kotlin
46. Build scans
47. | 47 Build scans • Gain build insights • Improve build performance • Collaborate with colleagues and the community
48. | 48 Build scans Demo
49. | 49 • hQps:/ /gradle.com • hQps:/ /gradle.com/gelng-started Build scans Build scans are a free service for everyone!
50. Gradle Enterprise
51. | 51 Gradle Enterprise • Query scans • Compare scans • Use a high-performance, scalable build cache • Host within your firewall Gain deep build insights within your company and teams!
52. | 52 Gradle Enterprise Demo
53. | 53 • hQps:/ /gradle.com/enterprise Gradle Enterprise Gradle Enterprise is a commercial offering!
54. | 54 • Incremental builds • Build cache • Compile avoidance & incremental compiler • Daemon • Composite builds • Tooling API • Sta/cally-typed DSL • Build scans • Gradle Enterprise Gradle Used by
55. Product success is strongly coupled to build automa"on
56. Thank you E/enne Studer