CIDER Distilled: A Common Foundation for Clojure Tooling

Transcript

1. None

2. M-x

3. Bom dia!

4. Божидар

5. Bozhidar

6. Bozhidar

7. Bojidar

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9. Bug cool

10. Sofia, Bulgaria Sofia, Bulgaria

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12. Top 10 Bulgarian “White” Hackers

13. #NRALeaks

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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

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20. First time in Brazil!

21. Second time in Brazil!

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25. First time in São Paulo!

26. First time at a conference in Brazil!

27. Cultural Exchange

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38. Population of São Paulo: 12 (22) million

39. Population of Bulgaria: 7 million

40. Artur Malabarba

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43. @bbatsov

44. metaredux.com

45. emacsredux.com

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47. Cider?

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50. Clojure Interactive Development Environment that Rocks

51. … for Emacs

52. CIDER Distilled: Beyond emacs

53. CIDER’s Architecture

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58. CIDER’s Orchard

59. Orchard?

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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
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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

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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

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92. The Lay of the Land

93. Calva (VS Code)

94. Calva -> Calvados

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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

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118. Language Server Protocol

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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*
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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

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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)

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167. Credits twitter: @bbatsov github: @bbatsov https://metaredux.com https://emacsredux.com Clojure/south São Paulo,

     Brazil 01.09.2019