class: center, middle # Build Systems .copyright[ <a rel="license" href="http://creativecommons.org/licenses/by/4.0/"><img alt="Creative Commons License" style="border-width:0" src="https://i.creativecommons.org/l/by/4.0/88x31.png" /></a> ** [Pat Pannuto](http://patpannuto.com) / Marcus Darden ** ] --- # Q: What is a Build System? ??? - AKA: Build Automation Software - Script/automate compilation -- # Q: Who has used a one? ??? - Everyone in 280 and beyond --- # Make, the Grandbinary of them all - Automate compiling and linking - Easily repeat long/complex commands - Eliminate unnecessary work ??? - Stuart Feldman, 1976, Bell Labs - Replaced shell scripts commonly used --- # Make syntax ## (in 2 lines or less) -- ```bash target: dependencies rules ``` ??? - target: The thing we're trying to build - dependencies: The thing(s) that must come before - rules: The steps needed to build target once the dependencies are all here --- # Let's Makefile! - Build a sentence - Subject - Verb - Object --- # Other build systems -- ## make-based - GNU make - nmake - ... -- ## Non-make/Proprietary - Bazel (Google's tool) - Buck (Facebook's tool) - MSBuild (Microsoft's tool) - xcodebuild (Apple's tool) - ... -- ## Other languages for scripting and building - Rake (ruby) - Apache Ant (Java + XML) - A-A-P (python) - sbt (Scala) - ... --- # Why stop at compilation? What else could we automate? -- - Build script generation - Installation - Testing - Continuous Integration (CI) ??? - make-based tools build well and then... bash - proprietary tools integrate with or control IDEs - CI tools use build systems, IDE aware, Notifications --- # Closing remarks - **New section!!** - Max points from Advanced Exercises in 3 or more sections - Reminder: You must submit to staff at OH ??? - 30 total AE points - (10 + 2) + (10 + 2 + 2) + (10 + 2 + 2) + (5 + 2 + 2) = 49 - Missing AE in two sections = Max AE score of 28 points (6 AE)