LunarVim/ftplugin/tex.lua

if require("lv-utils").check_lsp_client_active "texlab" then
  return
end

local preview_settings = {}

local sumatrapdf_args = { "-reuse-instance", "%p", "-forward-search", "%f", "%l" }
local evince_args = { "-f", "%l", "%p", "\"code -g %f:%l\"" }
local okular_args = { "--unique", "file:%p#src:%l%f" }
local zathura_args = { "--synctex-forward", "%l:1:%f", "%p" }
local qpdfview_args = { "--unique", "%p#src:%f:%l:1" }
local skim_args = { "%l", "%p", "%f" }

if O.lang.latex.forward_search.executable == "C:/Users/{User}/AppData/Local/SumatraPDF/SumatraPDF.exe" then
  preview_settings = sumatrapdf_args
elseif O.lang.latex.forward_search.executable == "evince-synctex" then
  preview_settings = evince_args
elseif O.lang.latex.forward_search.executable == "okular" then
  preview_settings = okular_args
elseif O.lang.latex.forward_search.executable == "zathura" then
  preview_settings = zathura_args
elseif O.lang.latex.forward_search.executable == "qpdfview" then
  preview_settings = qpdfview_args
elseif O.lang.latex.forward_search.executable == "/Applications/Skim.app/Contents/SharedSupport/displayline" then
  preview_settings = skim_args
end

require("lspconfig").texlab.setup {
  cmd = { DATA_PATH .. "/lspinstall/latex/texlab" },
  on_attach = require("lsp").common_on_attach,
  handlers = {
    ["textDocument/publishDiagnostics"] = vim.lsp.with(vim.lsp.diagnostic.on_publish_diagnostics, {
      virtual_text = O.lang.latex.diagnostics.virtual_text,
      signs = O.lang.latex.diagnostics.signs,
      underline = O.lang.latex.diagnostics.underline,
       update_in_insert = true,
    }),
  },
  filetypes = { "tex", "bib" },
  settings = {
    texlab = {
      auxDirectory = O.lang.latex.aux_directory,
      bibtexFormatter = O.lang.latex.bibtex_formatter,
      build = {
        args = O.lang.latex.build.args,
        executable = O.lang.latex.build.executable,
        forwardSearchAfter = O.lang.latex.build.forward_search_after,
        onSave = O.lang.latex.build.on_save,
      },
      chktex = {
        onEdit = O.lang.latex.chktex.on_edit,
        onOpenAndSave = O.lang.latex.chktex.on_open_and_save,
      },
      diagnosticsDelay = O.lang.latex.diagnostics_delay,
      formatterLineLength = O.lang.latex.formatter_line_length,
      forwardSearch = {
        args = preview_settings,
        executable = O.lang.latex.forward_search.executable,
      },
      latexFormatter = O.lang.latex.latex_formatter,
      latexindent = {
         modifyLineBreaks = O.lang.latex.latexindent.modify_line_breaks,
      },
    },
  },
}
vim.g.vimtex_compiler_method = "latexmk"
vim.g.vimtex_view_method = "zathura"
vim.g.vimtex_fold_enabled = 0
vim.g.vimtex_quickfix_ignore_filters = O.lang.latex.ignore_errors

O.plugin.which_key.mappings["t"] = {
  name = "+Latex",
  c = { "<cmd>VimtexCompile<cr>", "Toggle Compilation Mode" },
  f = { "<cmd>call vimtex#fzf#run()<cr>", "Fzf Find" },
  i = { "<cmd>VimtexInfo<cr>", "Project Information" },
  s = { "<cmd>VimtexStop<cr>", "Stop Project Compilation" },
  t = { "<cmd>VimtexTocToggle<cr>", "Toggle Table Of Content" },
  v = { "<cmd>VimtexView<cr>", "View PDF" },
  b = { "<cmd>TexlabBuild<cr>", "Build with Texlab" },
  p = { "<cmd>TexlabForward<cr>", "Preview with Texlab" },
}

-- Compile on initialization, cleanup on quit
vim.api.nvim_exec(
  [[
        augroup vimtex_event_1
            au!
            au User VimtexEventQuit     call vimtex#compiler#clean(0)
            au User VimtexEventInitPost call vimtex#compiler#compile()
        augroup END
    ]],
  false
)
if O.lang.latex.auto_save then
  vim.api.nvim_exec([[au FocusLost * :wa]], false)
end