feat(nvim): Implement nvim config HEAD main

Latest version from https://git.syndamia.com/conf/anderson (and formerly
https://gitlab.com/Syndamia/anderson).
Not edited in 7 months.

1 files changed, 262 insertions, 0 deletions

diff --git a/nvim/.nvim/lua/plugins/heirline.lua b/nvim/.nvim/lua/plugins/heirline.lua
new file mode 100644
index 0000000..cd7fbd2
--- /dev/null
+++ b/nvim/.nvim/lua/plugins/heirline.lua
@@ -0,0 +1,262 @@
+return {
+	"rebelot/heirline.nvim",
+	lazy = false,
+	event = "UiEnter",
+	opts = function()
+		local utils = require("heirline.utils")
+		local conditions = require("heirline.conditions")
+
+		--[=[ Helpers ]=]--
+
+		function inverseColors(highlight)
+			if highlight == nil then return nil end
+
+			if type(highlight) == "string" then
+				highlight = utils.get_highlight(highlight)
+			end
+
+			highlight.cterm = { reverse = true }
+			return highlight
+		end
+
+		local delimiters = {
+			FilledCircle = { "", "" },
+			Circle       = { "", "" },
+		}
+		local StatusLineColor = utils.get_highlight("StatusLine")
+
+		function surround(delimiters, component, additional_update)
+			return {
+				init = function(self)
+					local highlight
+					if component.hl ~= nil and type(component.hl) == "function" then
+						if component.init ~= nil then
+							component:init()
+						end
+						highlight = component:hl()
+					else
+						highlight = component.hl
+					end
+
+					self.inverse = inverseColors(highlight)
+					self.inverse.ctermfg = StatusLineColor.ctermfg -- Actually sets bg, but both are reversed
+				end,
+
+				{
+					condition = function() return conditions.is_active() end,
+					provider = delimiters[1],
+					hl = function(self) return self.inverse end,
+				},
+				component,
+				{
+					condition = function() return conditions.is_active() end,
+					provider = delimiters[2],
+					hl = function(self) return self.inverse end,
+				},
+
+				update = { "BufEnter", "BufLeave", additional_update },
+			}
+		end
+
+		function set_hl(name, val)
+			val.nocombine = true
+			vim.api.nvim_set_hl(0, name, val)
+			return val
+		end
+
+		--[=[ Common elements ]=]--
+
+		local FileStat = {
+			{
+				condition = function()
+					return vim.bo.readonly
+				end,
+				provider = "",
+			},
+			{
+				condition = function()
+					return vim.bo.modified or not vim.bo.modifiable
+				end,
+				provider = function(self)
+					local prepend = vim.bo.readonly and " " or ""
+					if vim.bo.modified       then return prepend.."" end
+					if not vim.bo.modifiable then return prepend.."" end
+				end,
+			},
+		}
+
+		local FileType = {
+			static = {
+				get_icon = require("nvim-web-devicons").get_icon_by_filetype,
+			},
+			provider = function(self)
+				local icon = self.get_icon(vim.bo.filetype)
+				if icon ~= nil then icon = icon.." "
+				else icon = ""
+				end
+				return icon..vim.bo.filetype
+			end,
+			update = "FileType",
+		}
+
+		local Filename = { provider = "%f", }
+		local Space    = { provider = " ", }
+
+		--[=[ Statusline ]=]--
+
+		set_hl("ModeNormal",  { ctermfg = 236, ctermbg = 117 })
+		set_hl("ModeInsert",  { ctermfg = 236, ctermbg = 119 })
+		set_hl("ModeReplace", { ctermfg = 236, ctermbg = 203 })
+		set_hl("ModeVisual",  { ctermfg = 236, ctermbg = 216 })
+
+		local Mode = surround(delimiters.FilledCircle, {
+			init = function(self)
+				self.modestr = vim.fn.mode(1)
+					if self.modestr == "\22" then self.modestr = "V^"
+				elseif self.modestr == "\22s" then self.modestr = "V^s"
+				end
+			end,
+
+			provider = function(self)
+				if not conditions.is_active() then return "   " end
+				return self.modestr
+			end,
+			hl = function(self)
+				if not conditions.is_active() then return "StatusLineNC" end
+
+				local modeletter = self.modestr:sub(1,1):lower()
+
+					if modeletter == "i" then return "ModeInsert"
+				elseif modeletter == "r" then return "ModeReplace"
+				elseif modeletter == "v" then return "ModeVisual"
+				end
+
+				return "ModeNormal"
+			end,
+		}, "ModeChanged")
+
+
+		set_hl("RowAndColumn", { ctermfg = 238, ctermbg = 244 })
+
+		local LineAndColumn = surround(delimiters.FilledCircle, {
+			provider = function(self)
+				if not conditions.is_active() then
+					local row,col = unpack(vim.api.nvim_win_get_cursor(0))
+					return string.rep(" ", 1 + tostring(row):len() + tostring(col):len())
+				end
+				return "%l:%c"
+			end,
+			hl = function(self)
+				if not conditions.is_active() then return "StatusLineNC" end
+				return "RowAndColumn"
+			end,
+		})
+
+		local LeftShrink   = { provider = "%<", }
+		local LeftSep      = { provider = " "..delimiters.Circle[2].." " }
+		local RightSep     = { provider = " "..delimiters.Circle[1].." " }
+		local ExpandMiddle = { provider = "%=", }
+		local CursorChar   = { provider = "%b", }
+
+		local StatusLine = {
+			Mode, LeftShrink, Space, Filename, LeftSep, FileStat,
+			ExpandMiddle,
+			CursorChar, RightSep, FileType, Space, LineAndColumn
+		}
+
+		--[=[ Tabline ]=]--
+		local hl_TabLine     = set_hl("TabLine",     { ctermfg = 252, ctermbg = 242 })
+		local hl_TabLineSel  = set_hl("TabLineSel",  { ctermfg = 252, ctermbg = 235 })
+		local hl_TabLineFill = set_hl("TabLineFill", { ctermfg = 248, ctermbg = 238 })
+		set_hl("TabLineRFR",    { ctermfg = hl_TabLine.ctermbg,    ctermbg = hl_TabLineFill.ctermbg }) -- nonactive Right Full, Rightmost
+		set_hl("TabLineSelRF",  { ctermfg = hl_TabLineSel.ctermbg, ctermbg = hl_TabLine.ctermbg })     -- active Right Full
+		set_hl("TabLineSelRFR", { ctermfg = hl_TabLineSel.ctermbg, ctermbg = hl_TabLineFill.ctermbg }) -- active Right Full, Rightmost
+		set_hl("TabLineSelLF",  { ctermfg = hl_TabLine.ctermbg,    ctermbg = hl_TabLineSel.ctermbg })  -- active Left Full (left one's Right Full)
+
+		local TabPage = {
+			init = function(self)
+				self.pages = vim.api.nvim_list_tabpages()
+			end,
+			{
+				static = {
+					get_icon = require("nvim-web-devicons").get_icon,
+					ft_icon  = require("nvim-web-devicons").get_icon_by_filetype,
+					none_icon = "",
+				},
+				init = function(self)
+					self.bufnr = vim.api.nvim_win_get_buf(vim.api.nvim_tabpage_get_win(self.tabpage))
+				end,
+				provider = function(self)
+					--[==[ Filename ]==]--
+					local filename = vim.fn.fnamemodify(vim.api.nvim_buf_get_name(self.bufnr), ":t")
+					if #filename == 0 then filename = "[No Name]" end
+
+					local max_name_len = vim.o.columns / (5 + #self.pages)
+					filename = (self.get_icon(filename, vim.fn.fnamemodify(filename, ":e")) or self.ft_icon(vim.bo[self.bufnr].filetype) or self.none_icon) ..
+					           " " .. string.sub(filename, 1, max_name_len)
+
+					--[==[ Readonly ]==]--
+					local readonly = vim.bo[self.bufnr].readonly and " " or ""
+
+					--[==[ Modification ]==]--
+					local mod = vim.bo[self.bufnr].modified and " "
+								or (vim.bo[self.bufnr].modifiable and "" or " ")
+
+					--[==[ Tab ]==]--
+					return
+						"%" .. self.tabnr .. "T" ..
+						" " ..
+						filename .. readonly .. mod ..
+						" "
+				end,
+				hl = function(self)
+					if not self.is_active then
+						return "TabLine"
+					else
+						return "TabLineSel"
+					end
+				end,
+			},
+			{
+				init = function(self)
+					local activenr = vim.api.nvim_tabpage_get_number(vim.api.nvim_get_current_tabpage())
+
+					self.dist = self.tabnr - activenr
+					self.last = self.tabnr == #self.pages
+				end,
+				provider = function(self)
+					return (self.last or self.dist == -1 or self.dist == 0)
+					       and delimiters.FilledCircle[2] or delimiters.Circle[2]
+				end,
+				hl = function(self)
+					if not self.is_active then
+						return self.last and "TabLineRFR" or (self.dist == -1 and "TabLineSelLF" or "TabLine")
+					else
+						return self.last and "TabLineSelRFR" or "TabLineSelRF"
+					end
+				end,
+			},
+			{
+				provider = "%T"
+			}
+		}
+
+		local TabPages = {
+			-- only show this component if there's 2 or more tabpages
+			condition = function()
+				return #vim.api.nvim_list_tabpages() >= 2
+			end,
+			utils.make_tablist(TabPage),
+		}
+
+		local TabLine = {
+			TabPages,
+		}
+
+		--[=[ Setup ]=]--
+		return {
+			statusline = StatusLine,
+			tabline    = TabLine,
+		}
+	end,
+}