ITHome 2024 鐵人賽文- Datomic: 事件溯源資料庫

需要的前置準備

SDKMAN
Clojure CLI
編輯器整合環境
- neovim
- Conjure (neovim plugin)

解釋

SDKMAN 是用來讓你先安裝好 java。請安裝 java 11 以上的版本。
Clojure CLI 也是必要的，因為這邊的範例 Clojure 的程式碼。而 Clojure 跟一般的軟體開發有一個很大的不同。它需要 REPL-driven programming 的設置，所以需要設置編輯器整合。

編輯器整合: 在 neovim 上安裝 Conjure

在 mac 上安裝 neovim brew install neovim
安裝 vim-plug

sh -c 'curl -fLo "${XDG_DATA_HOME:-$HOME/.local/share}"/nvim/site/autoload/plug.vim --create-dirs \
       https://raw.githubusercontent.com/junegunn/vim-plug/master/plug.vim'

修改 ~/.config/nvim/init.vim (複製、貼上即可)
:source %
:PlugInstall

;; 下面這一段，要複製貼上到 ~/.config/nvim/init.vim

" Specify a directory for plugins.
call plug#begin(stdpath('data') . '/plugged')

" Specify your required plugins here.

" better default
Plug 'liuchengxu/vim-better-default'

" Syntax highlights                                                                                                               
Plug 'clojure-vim/clojure.vim'   

" Conjure
Plug 'Olical/conjure'

" s-expression editing
Plug 'guns/vim-sexp'
Plug 'tpope/vim-sexp-mappings-for-regular-people'
Plug 'tpope/vim-surround'   
Plug 'jiangmiao/auto-pairs', { 'tag': 'v2.0.0' }

" rainbow parentheses
Plug 'amdt/vim-niji'

" linter 
Plug 'w0rp/ale'

" better preview window for suggestion/ auto-complete 
Plug 'ncm2/float-preview.nvim'

" syntax highlight for fennel language
Plug 'bakpakin/fennel.vim'

" color, look and feel 
Plug 'tomasr/molokai'
" install ack                                                                                                        
Plug 'mileszs/ack.vim' 

" Install fuzzy search
Plug 'cloudhead/neovim-fuzzy'

call plug#end()

" Place configuration AFTER `call plug#end()`!

let g:float_preview#docked = 0
let g:float_preview#max_width = 80
let g:float_preview#max_height = 40

let g:ale_linters = {
      \ 'clojure': ['clj-kondo', 'joker']
      \}
let maplocalleader=","
let g:ackprg = 'ack --nogroup --nocolor --column'  
" mapping for fuzzy search
nnoremap <C-p> :FuzzyOpen<CR>

tnoremap <Esc> <C-\><C-n> 

runtime! plugin/default.vim
set nonu
set norelativenumber
colorscheme molokai

function! Cljfmt()
 !cljfmt fix %
 " :e is to force reload the file after it got formatted.
 :e
endfunction

function! CljfmtSlow()
 !clojure -Sdeps '{:deps {dev.weavejester/cljfmt {:mvn/version "0.10.6"}}}' -m cljfmt.main fix %
 " :e is to force reload the file after it got formatted.
 :e
endfunction                                                                                  
                                                                                                
function! Sqlfmt()                                                                              
 !sqlformat --reindent --keywords upper --identifiers lower % -o %                              
 :e                                                                                             
endfunction

function! Yamlfmt()
 " pip install yamlfix
 !yamlfix %
 :e
endfunction

autocmd BufWritePost *.clj call Cljfmt()
autocmd BufWritePost *.cljs call Cljfmt()

簡易 Conjure 指令

主要會使用到的 Conjure 指令：

:ConjureEval [code] // 輸入程式碼 (code)直接執行。
<localleader> ee // evaluate the form under the cursor. (e 是 inner 的諧音)
<localleader> er // evaluate the root form under the cursor. (r 是 outer 的諧音)
<localleader> e! // evaluate the form under the cursor and replace it. (! 意指 side effect)

重新載入整個檔案。

<localleader> eb // evaluate the current buffer
<localleader> ef // evaluate the current file from disk

快速檢查特定變數的『值』

<localleader> ew // evaluate the current word

開啟 log buffer 的指令

<localleader> ls // 水平開啟
<localleader> lv // 垂直開啟
<localleader> lq // 關閉

看文件、切換到定義

K // 看 document
gd // 跳轉定義

humorless/ithome2024

ITHome 2024 鐵人賽文- Datomic: 事件溯源資料庫

需要的前置準備

解釋

編輯器整合: 在 neovim 上安裝 Conjure

簡易 Conjure 指令