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annotate dot_config/nvim/lua/terminal.lua @ 336:7a8b66395d69

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Add floating terminal to be toggled via c-z
author zegervdv <zegervdv@me.com>
date Thu, 21 Jan 2021 09:17:28 +0100
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336
7a8b66395d69 Add floating terminal to be toggled via c-z
zegervdv <zegervdv@me.com>
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1 -- Copied from: https://github.com/kutsan/dotfiles/blob/b2046a6c0bcc754fc381351119c14c374721fd4d/.config/nvim/lua/kutsan/mappings/normal/terminal.lua
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2
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3 local api = vim.api
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4 local fn = vim.fn
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5
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6 local terminal = {
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7 buf = nil,
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8 win = nil,
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9 pid = nil
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10 }
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11
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12 terminal.open = function ()
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13 -- Create buffer.
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14 local buf = nil
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15
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16 if terminal.buf and api.nvim_buf_is_loaded(terminal.buf) then
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17 buf = terminal.buf
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18 else
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19 buf = api.nvim_create_buf(false, true)
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20 end
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21
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22 -- Create window.
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23 local width = math.ceil(vim.o.columns * 0.8)
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24 local height = math.ceil(vim.o.lines * 0.9)
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25
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26 local win = api.nvim_open_win(buf, true, {
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27 relative = 'editor',
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28 style = 'minimal',
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29 width = width,
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30 height = height,
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31 col = math.ceil((vim.o.columns - width) / 2),
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32 row = math.ceil((vim.o.lines - height) / 2 - 1),
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33 })
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34 api.nvim_win_set_option(win, 'winhighlight', 'Normal:CursorLine')
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35
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36 -- Launch terminal.
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37 if not terminal.buf then
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38 terminal.pid = fn.termopen(string.format('%s --login', os.getenv('SHELL')))
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39 end
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40
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41 vim.cmd('startinsert')
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42 vim.cmd("autocmd! TermClose <buffer> lua require('terminal').close(true)")
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43
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44 -- Save current handles.
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45 terminal.win = win
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46 terminal.buf = buf
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47 end
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48
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49 terminal.close = function (force)
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50 if not terminal.win then
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51 return
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52 end
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53
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54 if api.nvim_win_is_valid(terminal.win) then
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55 api.nvim_win_close(terminal.win, false)
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56 terminal.win = nil
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57 end
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58
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59 -- Force close upon terminal exit.
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60 if force then
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61 if api.nvim_buf_is_loaded(terminal.buf) then
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62 api.nvim_buf_delete(terminal.buf, { force = true })
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63 end
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64
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65 fn.jobstop(terminal.pid)
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66
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67 terminal.buf = nil
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68 terminal.pid = nil
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69 end
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70 end
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71
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72 terminal.toggle = function ()
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73 if not terminal.win then
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74 terminal.open()
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75 else
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76 terminal.close()
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77 end
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78 end
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79
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80 return terminal