CIDER Distilled: A Common Foundation for Clojure Tooling

Slide deck from my Clojure/south 2019 presentation.

Transcript

2. M-x
3. Bom dia!
4. Божидар
5. Bozhidar
6. Bozhidar
7. Bojidar
9. Bug cool
10. Sofia, Bulgaria Sofia, Bulgaria
12. Top 10 Bulgarian “White” Hackers
13. #NRALeaks
15. Expert in cyber security
16. Expert in the following programming languages: Unix, Emacs, Perl and Ruby
17. The Don Juan of IT in Bulgaria
20. First time in Brazil!
21. Second time in Brazil!
25. First time in São Paulo!
26. First time at a conference in Brazil!
27. Cultural Exchange
38. Population of São Paulo: 12 (22) million
39. Population of Bulgaria: 7 million
40. Artur Malabarba
43. @bbatsov
44. metaredux.com
45. emacsredux.com
46. slide intentionally left blank
47. Cider?
50. Clojure Interactive Development Environment that Rocks
51. … for Emacs
52. CIDER Distilled: Beyond emacs
53. CIDER’s Architecture
58. CIDER’s Orchard
59. Orchard?
61. noun 1. a piece of enclosed land planted with fruit trees. an apple orchard 2. (in the context of Clojure) a fertile ground for Clojure tooling. CIDER’s Orchard
63. Created especially for REPL- powered tooling
64. Extremely flexible
65. Transports •bencode (default) •tty (built-in) •http(s) (via Drawbridge) •transit (via Fastlane) •EDN (coming in nREPL 0.7)
66. Extendable
67. Piggieback (ClojureScript Support)
68. shadow-cljs (ClojureScript Support)
69. cider-nrepl
71. Common functionality for interactive programming environments
72. Thin wrapper around (many) nREPL-agnostic libraries
73. Fundamental Tooling Approaches •REPL-driven (runtime state inspection) •Static analysis based (parses and analyses the code)
74. unrepl prepl nREPL
75. orchard (swiss army knife)
76. compliment (code completion)
77. cljs-tooling (too hard to explain)
78. thunknyc/profile (self-explanatory)
79. fipp & puget (pretty printing)
80. •cljfmt •tools.namespace •tools.trace •tools.reader
81. REPL-powered tooling runs alongside your application code
82. Mr. Anderson (dependency inlining)
83. There’s a lot going on here!
84. And we haven’t mentioned a single Emacs library…
85. But wait, there’s more!
86. sayid (debugging tool)
87. weasel (ClojureScript REPL)
88. refactor-nrepl
92. The Lay of the Land
93. Calva (VS Code)
94. Calva -> Calvados
96. Calvados is distilled from cider.
97. Calva is distilled from CIDER.
98. vim-fireplace
99. vim-iced
100. acid.vim
101. CCW (Eclipse)
102. Proto REPL (Atom)
103. Non-nREPL tools
104. Chlorine (Atom, prepl)
105. Conjure (vim, prepl)
106. vimpire (vim, unrepl)
107. Cursive (IntelliJ, static analysis)
108. clojure-lsp (cross-editor, static analysis)
109. •cider-nrepl -> orchard-nrepl •cljs-tooling -> orchard-cljs
110. Naming is hard!
111. cljs-tooling compliment orchard
112. Clojure’s Orchard
113. Case Study: Improving ClojureScript code completion for everyone
114. cljs-tooling => compliment
115. clj-suitable
117. slide intentionally left blank
118. Language Server Protocol
120. LSP or nREPL?
121. •You can run them side by side •You can implement LSP in terms of nREPL •You can proxy nREPL requests to an LSP server •You can implement LSP in terms of the same underlying libraries*
123. The State of Affairs
124. The Challenges
125. 25% 5% 70% Yes Maybe I already have Notepad No Do you want great Clojure development tools?
126. 69% 25% 5% 1% Yes Maybe I already have Notepad No Are you willing to work on Clojure development tools?
127. Few maintainers, many libraries
128. Areas of Interest •sayid •refactor-nrepl
129. ClojureScript
130. Areas of Interest •Piggieback •cider-nrepl •orchard •compliment •weasel
131. Where’s my hammock time?
132. Inconsistent APIs
133. Documentation
134. cljdoc
135. https://docs.cider.mx
136. https://nrepl.org
137. AsciiDoc + Antora
138. Funding
140. 2013-2017 (estimated) •$5000 in donations •~3000 hours of work on the projects
141. Definition of Work •Writing code •Reviewing code •Discussing ideas •Educating myself so I can write/review code and discuss ideas •Supporting end users via Slack, email, etc •Collaborating with other tool authors
142. 2018 •$4000 (OpenCollective) •$5400 (Clojurists Together)
143. 2019 (projected) •$18,000 (OpenCollective) •$9,000 (Clojurists Together)
144. 2,250/month
145. Little support from Clojure companies
146. Development tools are a high leverage investment
147. Clojurists Together
148. opencollective.com/cider
149. opencollective.com/nrepl
150. GitHub Sponsors
151. Future of the Orchard
152. Sustainable
153. Stable
154. Community Driven
155. Community Supported
156. Open Source is not about You
157. CIDER’s Orchard is all about YOU!!!
158. Help Clojure’s Orchard…
159. …to help yourselves
160. Felina
161. Resources • https://metaredux.com/posts/2018/10/29/nrepl-redux.html • https://metaredux.com/posts/2018/11/09/ciders-orchard- the-heart.html • https://metaredux.com/posts/2018/11/11/ciders-orchard- the-periphery.html • https://www.youtube.com/watch?v=4X-1fJm25Ww
162. One more thing…
163. CIDER 0.22 (Lima) is out!
164. CIDER 0.22 (São Paulo)
167. Credits twitter: @bbatsov github: @bbatsov https://metaredux.com https://emacsredux.com Clojure/south São Paulo, Brazil 01.09.2019