Leiningen2 - humane build management for clojure
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The document discusses the usage of Leiningen for Clojure project management, including commands for creating projects, managing dependencies, and running applications. It outlines the steps for setting up a Clojure environment, utilizing the REPL for development, and handling version control with Git. Additionally, it highlights plugins and features to enhance the development experience, emphasizing the benefits of using Leiningen over other tools.
Leiningen2 - humane build management for clojure
- 1. L e in in g e n 2 H u m a n e b u ild m a na g e m e n t fo r ClojureMadeSimple.co.uk
- 2. slideshare.net/jr0cket This slide deck is available to follow along with on slideshare.net
- 6. ...there was Ant, Ant begat Ivy, Ant begat Maven
- 7. … and there was much XML all around
- 8. Here end'eth the lesson.. (except of course this is just the end of the beginning)
- 13. Human verses Computer readable build jobs
- 14. build management
- 15. Leiningen … more fun than Maven … easy way to kick-start your Clojure addiction
- 16. Installing Leiningen Download the Leiningen 2 install script from leiningen.org Move the lein file to an executable location, eg. ~/bin Make the install script executable and run the install chmod u+x ~/bin/lein
- 17. All the usual tasks, and then some lein new Create a new clojure project lein deps Download all dependencies lein run Run your application lein jar Deploy your app as a jar lein uberjar Deploy your app & clojure libraries lein repl Start the interactive shell (repl) lein jack-in Start repl server and connect (in Emacs)
- 18. Fire up the REPL REPL: read, evaluate, print loop – dynamic lein repl environment for Clojure and other lisps
- 19. View function documentation (doc map)
- 20. Show function source code (source map)
- 21. REPL driven development Develop functions and data structures on the fly REPL: read, evaluate, print loop – dynamic environment for Clojure and other lisps
- 22. Loading code into the REPL Develop functions and data structures on the fly REPL: read, evaluate, print loop – dynamic environment for Clojure and other lisps
- 23. Create a new project lein new my-project cd my-project lein deps Lein deps will check your project.clj configuration file and download any libraries (jar files) that are required by the project
- 24. Anatomy of a new project
- 25. Create a new project lein new my-project cd my-project lein deps Lein deps will check your project.clj configuration file and download any libraries (jar files) that are required by the project
- 26. Version your project with Git cd my-project git init Create a repo on github & add it to your project git remote add origin git@github.com/account/project.git git push -u origin master You may want to edit your .git-ignore file also
- 27. Open project in emacs cd my-project emacs project.clj
- 28. project.clj - project definition Lein deps will check this project.clj configuration file and download any libraries (jar files) that are required by the project
- 29. Dev Dependencies Add libraries only needed for development Not packaged when code deployed
- 32. Add a REPL server REPL: read, evaluate, print, loop – dynamic environment for Clojure and other lisps
- 33. Add REPL server to all projects ~/.lein/profiles.clj
- 34. Fire up the REPL in Emacs M – x clojure- jack-in M – x represents the keyboard combination of the meta key followed by x. Then the command clojure-jack-in is entered.
- 35. Define your own Global short-cut Open your .emacs.d/init.el file and add: (global-set-key (kbd "C-c C-j") 'clojure-jack- in) In Emacs, start the REPL with C – c C – j
- 36. REPL in Emacs
- 37. Add web based REPL ~/.lein/profiles.clj REPL: read, evaluate, print, loop – dynamic environment for Clojure and other lisps
- 39. Local Repositories (just like Maven)
- 40. Libraries kept in local .m2 folder
- 41. Nexus / Artefactory repositories https://github.com/technomancy/leiningen/blob/pr eview/sample.project.clj
- 42. Running your project
- 43. Create a new project lein run Runs the main function, or specify main with -m option
- 44. Long running processes lein trampoline run -m my-stuff.server 5000
- 45. Running Tests lein tests lein tests my.proj.code
- 46. Deployment
- 47. Jars & Uber Jars lein uberjar
- 49. Running scripts Copying files DVCS (git) Continuous Integration server (Jenkins)
- 51. Leiningen.org - Tutorials - Github Repository - News - Bug reporting
- 52. Choose Life... … choose Clojure
- 53. Th a n k yo u LondonClojurians.org @ r 0c ket j ClojureMadeSimple.co.uk slideshare.net/jr0cket