nvim: Replace slime et al with magma

So far, my repl integration consisted of vim-slime and vim-ipython-cell.
I am basically purely working in the python repl for now and while the
two plugins (together with tmux) *worked* they didn't work well enough
that I used them in an extensive way. Just as often as I could make use
of their productivity enhacements, I had to wrangle with the plugins
themselves to get what I wanted out of them.

Hence the switch to magma. It integrates more deeply into python, and
neovim both - showing cell outputs in floating windows and so on.

It does not, on its own, recognize e.g. jupyter cells or quarto code
cells, so I have set up some simple key binds to improve
inter-operability between those. Especially [r and ]r to jump between
quarto cells and <localleader>R to execute the contents of the cell the
cursor is currently in may be of interest. They are fairly crude and
probably have edge cases where they will not work but until then they
provide an easy quality of life improvement.

Lastly, I silently added a plugin for markdown previews (that also
scrolls with the editing cursor). I don't foresee myself using it *too*
often but it might come handy for smaller articles and writing. It can
be invoked with <localleader>mp - a binding which I will no doubt also
have to overhaul at some point.

nvim/.config/nvim/lua/maps.lua

@@ -178,12 +178,13 @@ vim.g.nv_fzf_binds = {
 map.n.nore['<leader>n'] = ':NV<cr>'
 map.n.nore['<leader>N'] = ':NV!<cr>'
 
--- Mostly dealing with Prose writing from here on out
 -- Format current Paragraph (esp useful in prose writing)
 map.n.nore.silent['<localleader>q'] = 'gqap'
 map.x.nore.silent['<localleader>q'] = 'gq'
 map.n.nore.silent['<localleader>Q'] = 'vapJgqap'
 
+map.n.silent['<localleader>mp'] = '<Plug>MarkdownPreviewToggle'
+
 -- FORMAT code with
 -- PLUGIN: formatter.nvim
 map.n.nore.silent['<localleader>f'] = ':FormatLock<cr>'
@@ -248,21 +249,22 @@ map.n.nore['<leader>ww'] = [[:lua require 'zettelkasten'.index_open()<cr> ]]
 -- create a lazygit window, set up in toggleterm settings
 map.n.nore['<leader>G'] = ':Lazygit<cr>'
 
--- PLUGIN: slime and ipython-cell
--- send line / region, not adhering to cells
-map.n['<leader>cs'] = '<Plug>SlimeLineSend'
-map.x['<leader>cs'] = '<Plug>SlimeRegionSend'
--- send complete script to repl / benchmark execution
-map.n.nore['<leader>cr'] = ':IPythonCellRun<cr>'
-map.n.nore['<leader>cR'] = ':IPythonCellRunTime<cr>'
--- send current cell / send and go to next
-map.n.nore['<leader>cc'] = ':IPythonCellExecuteCellVerbose<cr>'
-map.n.nore['<leader>C'] = ':IPythonCellExecuteCellVerboseJump<cr>'
--- clear ipython repl
-map.n.nore['<leader>cl'] = ':IPythonCellClear<cr>'
--- jump to previous/ next cell
-map.n.nore[']c'] = ':IPythonCellNextCell<cr>'
-map.n.nore['[c'] = ':IPythonCellPrevCell<cr>'
+-- PLUGIN: magma-nvim
+-- Operate jupyter notebooks from within vim
+map.n.nore.silent['<localleader>rr'] = ':MagmaEvaluateLine<cr>'
+map.n.nore.silent['<localleader>R'] = '?^```{<cr>jV/```<cr>k:<C-u>MagmaEvaluateVisual<cr>'
+map.x.nore.silent['<localleader>r'] = ':<C-u>MagmaEvaluateVisual<cr>'
+map.n.nore.expr.silent['<localleader>r'] = "nvim_exec('MagmaEvaluateOperator', v:true)"
+map.n.nore.silent['<localleader>re'] = ':MagmaReevaluateCell<cr>'
+map.n.nore.silent['<localleader>ro'] = ':MagmaShowOutput<cr>'
+map.n.nore.silent['<localleader>rq'] = ':noautocmd :MagmaEnterOutput<cr>'
+map.n.nore.silent['<localleader>rc'] = ':MagmaDelete<cr>'
+map.n.nore.silent['<localleader>rd'] = ':MagmaInterrupt<cr>'
+
+map.n.nore.silent['<localleader>rO'] = ':lua vim.g.magma_automatically_open_output = not(vim.g.magma_automatically_open_output)<cr>'
+-- jump to beginning of previous/ next cell code
+map.n.nore[']r'] = '/^```{<cr>}:nohl<cr>'
+map.n.nore['[r'] = '?^```n<cr>}:nohl<cr>'
 -- insert cell header above/below
 map.n.nore['<leader>cO'] = ':IPythonCellInsertAbove<cr>a'
 map.n.nore['<leader>co'] = ':IPythonCellInsertBelow<cr>a'

nvim/.config/nvim/lua/plugins.lua

@@ -115,6 +115,10 @@ require("packer").startup(function()
     use { 'folke/zen-mode.nvim', config = require('zen-mode').setup() } -- provide distraction free writing
     use 'folke/twilight.nvim' -- provide even distraction free-er writing (lowlight paragraphs)
     use 'alok/notational-fzf-vim' -- quickly search through the wiki
+    use({
+        "iamcco/markdown-preview.nvim", -- generate an auto-updating html preview for md files
+        run = function() vim.fn["mkdp#util#install"]() end
+    })
 
     -- languages
     use { 'euclidianAce/BetterLua.vim', ft = 'lua' } -- better syntax highlighting for lua
@@ -122,28 +126,14 @@ require("packer").startup(function()
 
     -- REPL work
     use {
-        'jpalardy/vim-slime', -- send arbitrary code chunks to REPLs
+        'WhiteBlackGoose/magma-nvim-goose',
+        run = ":UpdateRemotePlugins",
         config = function()
-            vim.g.slime_target = 'tmux'
-            vim.g.slime_paste_file = vim.fn.tempname()
-            vim.g.slime_default_config = {
-                socket_name = "default",
-                target_pane = "{last}"
-            }
-            vim.g.slime_python_ipython = 1
-            vim.g.slime_no_mappings = 1
-        end
-    }
-    use {
-        'hanschen/vim-ipython-cell', -- send code 'cells' to REPL
-        ft = "python",
-        config = function()
-            vim.g.ipython_cell_highlight_cells_ft = {'python'}
-            vim.g.ipython_cell_insert_tag = "## Cell"
+            vim.g.magma_image_provider = "kitty"
+            vim.g.magma_automatically_open_output = false
         end
     }
 
-    --
     -- nvim plugs
     use {
         'echasnovski/mini.nvim',