Intro to Make

An introduction to Makefiles given at BarCamp GR.

Transcript

1. Intro to Make @JaceBrowning
2. What is Make? • Build automation tool ◦ Builds executable programs from source code ◦ Update files automatically when related files change • Initial release: 1977 • Filename: Makefile ◦ Targets ◦ Components ◦ Commands
3. barcamp: barcamp.c gcc -o barcamp barcamp.c $ make barcamp
5. Motivation
6. Arguments against Grunt, Gulp, etc. • Bootstrapping problem • Limited dependency tracking • Project switching overhead ◦ How do I install the dependencies? ◦ How do I run the tests?
7. Arguments for Make • Ubiquitous • Stable • Self-contained • Established conventions ◦ make ◦ make test ◦ make clean
8. Advantages of Standardizing • Reduced project switching overhead • Shared Continuous Integration configuration • Easier build debugging
9. before_script: - git submodule update --init --recursive - ./set_token.sh - bundle install script: - bundle exec rake secure_pipeline:network_attack - bundle exec rake secure_pipeline:ssl_attack - bundle exec rake secure_pipeline:xss - bundle exec rake secure_pipeline:information_leakage - bundle exec rake secure_pipeline:sql_injection before_script: - make script: - make ci
10. Features
11. Files and Timestamps • Create missing files • Traverse dependency chains • Update files when dependencies are newer
12. Variables • CONSTANT := value • LAZY = $(shell ls *.py) • OPTIONAL ?= value2 ◦ make <target> OPTIONAL=value3
13. Automatic Variables • $@ • $< • $^ https://www.gnu.org/software/make/manual/html_node/Automatic-Variables.html
14. Demo
15. Thanks! @JaceBrowning