feat: All buffer previewers are now async and more config options (#354)

Configure preview window with:
autocmd User TelescopePreviewerLoaded setlocal wrap
autocmd User TelescopePreviewerLoaded setlocal number

file_maker example: Use regex highlighting for certain filetype like `*min.js` because they slow
down things with treesitter highlighter. Just a snippet for tests. We will do an extension :)

local previewers = require('telescope.previewers')
local putils = require('telescope.previewers.utils')
local pfiletype = require('plenary.filetype')

local _bad = { '.*%.min%.js' }
local bad_files = function(filepath)
  for _, v in ipairs(_bad) do
    if filepath:match(v) then
      return true
    end
  end

  return false
end

local new_maker = function(filepath, bufnr, bufname, use_ft_detect, callback)
  if use_ft_detect == nil then use_ft_detect = true end

  if bad_files(filepath) then
    previewers.buffer_previewer_maker(filepath, bufnr, bufname, false, callback)
    local ft = pfiletype.detect(filepath)
    putils.regex_highlighter(bufnr, ft)
  else
    previewers.buffer_previewer_maker(filepath, bufnr, bufname, use_ft_detect, callback)
  end
end

require('telescope').setup {
  defaults = {
    buffer_previewer_maker = new_maker,
  }
}

1 files changed, 15 insertions, 14 deletions

diff --git a/lua/telescope/previewers/init.lua b/lua/telescope/previewers/init.lua
index 8074c65..b0f49c0 100644
--- a/lua/telescope/previewers/init.lua
+++ b/lua/telescope/previewers/init.lua
@@ -9,24 +9,25 @@ previewers.new = function(...)
 end
 
 previewers.new_termopen_previewer = term_previewer.new_termopen_previewer
-previewers.git_commit_diff        = term_previewer.git_commit_diff
-previewers.git_branch_log         = term_previewer.git_branch_log
-previewers.git_file_diff          = term_previewer.git_file_diff
 previewers.cat                    = term_previewer.cat
 previewers.vimgrep                = term_previewer.vimgrep
 previewers.qflist                 = term_previewer.qflist
 
-previewers.new_buffer_previewer = buffer_previewer.new_buffer_previewer
-previewers.vim_buffer_cat       = buffer_previewer.cat
-previewers.vim_buffer_vimgrep   = buffer_previewer.vimgrep
-previewers.vim_buffer_qflist    = buffer_previewer.qflist
-previewers.ctags                = buffer_previewer.ctags
-previewers.builtin              = buffer_previewer.builtin
-previewers.help                 = buffer_previewer.help
-previewers.man                  = buffer_previewer.man
-previewers.autocommands         = buffer_previewer.autocommands
-previewers.highlights           = buffer_previewer.highlights
-previewers.display_content      = buffer_previewer.display_content
+previewers.new_buffer_previewer   = buffer_previewer.new_buffer_previewer
+previewers.buffer_previewer_maker = buffer_previewer.file_maker
+previewers.vim_buffer_cat         = buffer_previewer.cat
+previewers.vim_buffer_vimgrep     = buffer_previewer.vimgrep
+previewers.vim_buffer_qflist      = buffer_previewer.qflist
+previewers.git_branch_log         = buffer_previewer.git_branch_log
+previewers.git_commit_diff        = buffer_previewer.git_commit_diff
+previewers.git_file_diff          = buffer_previewer.git_file_diff
+previewers.ctags                  = buffer_previewer.ctags
+previewers.builtin                = buffer_previewer.builtin
+previewers.help                   = buffer_previewer.help
+previewers.man                    = buffer_previewer.man
+previewers.autocommands           = buffer_previewer.autocommands
+previewers.highlights             = buffer_previewer.highlights
+previewers.display_content        = buffer_previewer.display_content
 
 previewers.Previewer = Previewer