The best emacs like editor for use in terminal. (e.g. docker/remote vps)

.wezterm.lua

-- Pull in the wezterm API
local wezterm = require 'wezterm'
local act = wezterm.action
local mux = wezterm.mux

-- This table will hold the configuration.
local config = {}

-- In newer versions of wezterm, use the config_builder which will
-- help provide clearer error messages
if wezterm.config_builder then
  config = wezterm.config_builder()
end

config.set_environment_variables = {
  SHELL="/usr/bin/bash"
}

config.window_close_confirmation = 'AlwaysPrompt'

-- 使用非 login shell, 即 .bashrc
config.default_prog = { '/usr/bin/bash' }
config.enable_scroll_bar = true
config.scrollback_lines = 1000000

-- enable this settings, and start from another terminal,  e.g. konsole
-- config.debug_key_events = true

-- config.enable_wayland = false

-- This is where you actually apply your config choices

-- For example, changing the color scheme:
-- config.color_scheme = 'Vs Code Dark+ (Gogh)'

config.window_background_opacity = 0.85

config.font = wezterm.font 'Fira Code Retina'

config.disable_default_key_bindings = true
-- config.disable_default_mouse_bindings = true

config.leader = { key = 'x', mods = 'CTRL' }
config.keys = {
  {
    key = '3',
    mods = 'LEADER',
    action = act.SplitHorizontal { domain = 'CurrentPaneDomain' },
  },
  {
    key = '2',
    mods = 'LEADER',
    action = act.SplitVertical { domain = 'CurrentPaneDomain' },
  },
  {
    key = 'o',
    mods = 'LEADER',
    action = act.PaneSelect
  },
  {
    key = '=',
    mods = 'LEADER',
    action = act.ResetFontSize
  },
  {
    key = '-',
    mods = 'LEADER',
    action = act.ResetFontSize
  },
  {
    key = 'r',
    mods = 'LEADER',
    action = act.ActivateKeyTable {
      name = 'resize_pane',
      one_shot = false
    },
  },
  {
    key = 'x',
    mods = 'LEADER',
    action = act.SendKey { key = 'x', mods = 'CTRL' },
  },
  { key = 'h', mods = 'ALT', action = act.ActivatePaneDirection 'Left' },
  { key = 'l', mods = 'ALT', action = act.ActivatePaneDirection 'Right' },
  { key = 'k', mods = 'ALT', action = act.ActivatePaneDirection 'Up' },
  { key = 'j', mods = 'ALT', action = act.ActivatePaneDirection 'Down' },
  { key = 'RightArrow', mods = 'CTRL', action = act.AdjustPaneSize { 'Right', 5 } },
  { key = 'LeftArrow', mods = 'CTRL', action = act.AdjustPaneSize { 'Left', 5 } },
  { key = 'UpArrow', mods = 'CTRL', action = act.AdjustPaneSize { 'Up', 5 } },
  { key = 'DownArrow', mods = 'CTRL', action = act.AdjustPaneSize { 'Down', 5 } },
  { key = '0', mods = 'ALT', action = act.ActivateTabRelative(1) },
  { key = '9', mods = 'ALT', action = act.ActivateTabRelative(-1) },
  { key = '0', mods = 'CTRL|ALT', action = act.MoveTabRelative(1) },
  { key = '9', mods = 'CTRL|ALT', action = act.MoveTabRelative(-1) },
  { key = 'e', mods = 'SHIFT|CTRL', action = act.TogglePaneZoomState },
  { key = 'F10', mods = '', action = act.ToggleFullScreen },
  -- { key = 'Enter', mods = 'ALT', action = act.ToggleFullScreen },
  -- { key = '\'', mods = 'CTRL', action = act.SplitVertical{ domain =  'CurrentPaneDomain' } },
  -- { key = '%', mods = 'SHIFT|CTRL', action = act.SplitHorizontal{ domain =  'CurrentPaneDomain' } },
  { key = '-', mods = 'CTRL', action = act.DecreaseFontSize },
  { key = '=', mods = 'CTRL', action = act.IncreaseFontSize },
  -- { key = 'n', mods = 'CTRL', action = act.SpawnWindow },
  -- { key = 'N', mods = 'SHIFT|CTRL', action = act.SpawnWindow },
  -- { key = 'P', mods = 'CTRL', action = act.ActivateCommandPalette },
  -- { key = 'P', mods = 'SHIFT|CTRL', action = act.ActivateCommandPalette },
  -- { key = 'R', mods = 'CTRL', action = act.ReloadConfiguration },
  -- { key = 'R', mods = 'SHIFT|CTRL', action = act.ReloadConfiguration },
  -- { key = 'U', mods = 'CTRL', action = act.CharSelect{ copy_on_select = true, copy_to =  'ClipboardAndPrimarySelection' } },
  -- { key = 'U', mods = 'SHIFT|CTRL', action = act.CharSelect{ copy_on_select = true, copy_to =  'ClipboardAndPrimarySelection' } },
  -- { key = 'X', mods = 'CTRL', action = act.ActivateCopyMode },
  -- { key = 'X', mods = 'SHIFT|CTRL', action = act.ActivateCopyMode },
  -- { key = 'Z', mods = 'CTRL', action = act.TogglePaneZoomState },
  -- { key = 'Z', mods = 'SHIFT|CTRL', action = act.TogglePaneZoomState },
  { key = 'k', mods = 'SHIFT|CTRL', action = act.ClearScrollback 'ScrollbackAndViewport' },
  { key = 'l', mods = 'SHIFT|CTRL', action = act.ShowDebugOverlay },
  -- { key = 'm', mods = 'SHIFT|CTRL', action = act.Hide },
  -- { key = 'n', mods = 'SHIFT|CTRL', action = act.SpawnWindow },
  -- { key = 'n', mods = 'SUPER', action = act.SpawnWindow },
  -- { key = 'p', mods = 'SHIFT|CTRL', action = act.ActivateCommandPalette },
  -- { key = 'r', mods = 'SHIFT|CTRL', action = act.ReloadConfiguration },
  -- { key = 'r', mods = 'SUPER', action = act.ReloadConfiguration },
  -- { key = 't', mods = 'SHIFT|CTRL', action = act.SpawnTab 'CurrentPaneDomain' },
  {
    key = 't',
    mods = 'SHIFT|CTRL',
    action = wezterm.action_callback(
      function(win, pane)
        local mux_win = win:mux_window()
        local idx = active_tab_idx(mux_win)
        local tab = mux_win:spawn_tab({})
        win:perform_action(wezterm.action.MoveTab(idx+1), pane)
      end
    ),
  },
  -- { key = 'u', mods = 'SHIFT|CTRL', action = act.CharSelect{ copy_on_select = true, copy_to =  'ClipboardAndPrimarySelection' } },
  { key = 'y', mods = 'CTRL', action = act.PasteFrom 'Clipboard' },
  { key = 'w', mods = 'SHIFT|CTRL', action = act.CloseCurrentTab{ confirm = true } },
  { key = 'x', mods = 'SHIFT|CTRL', action = act.ActivateCopyMode },
  { key = 'z', mods = 'SHIFT|CTRL', action = act.TogglePaneZoomState },
  { key = 'phys:Space', mods = 'SHIFT|CTRL', action = act.QuickSelect },
  { key = 'f', mods = 'SHIFT|CTRL', action = act.Search 'CurrentSelectionOrEmptyString' },
  { key = 'w', mods = 'ALT', action = act.EmitEvent 'CopyToHackForDte' },
  { key = 's', mods = 'CTRL', action = act.EmitEvent 'SearchHackForDte' },
  { key = '<', mods = 'SHIFT|ALT', action = act.EmitEvent 'ScrollToTopForDte' },
  { key = '>', mods = 'SHIFT|ALT', action = act.EmitEvent 'ScrollToBottomForDte' },
  {
    key = 'v', mods = 'CTRL',
    action = wezterm.action_callback(
      function(window, pane)
        ScrollByPageForDte(window, pane, 1, {key = 'v', mods = 'CTRL'})
      end
    )
  },
  {
    key = 'v', mods = 'ALT',
    action = wezterm.action_callback(
      function(window, pane)
        ScrollByPageForDte(window, pane, -1, {key = 'v', mods = 'ALT'})
      end
    )
  },
  {
    key = 'p', mods = 'ALT',
    action = wezterm.action_callback(
      function(window, pane)
        ScrollByLineForDte(window, pane, -2, {key = 'p', mods = 'ALT'})
      end
    )
  },
  {
    key = 'n', mods = 'ALT',
    action = wezterm.action_callback(
      function(window, pane)
        ScrollByLineForDte(window, pane, 2, {key = 'n', mods = 'ALT'})
      end
    )
  },
  -- { key = 'LeftArrow', mods = 'SHIFT|CTRL', action = act.ActivatePaneDirection 'Left' },
  -- { key = 'LeftArrow', mods = 'SHIFT|ALT|CTRL', action = act.AdjustPaneSize{ 'Left', 1 } },
  -- { key = 'RightArrow', mods = 'SHIFT|CTRL', action = act.ActivatePaneDirection 'Right' },
  -- { key = 'RightArrow', mods = 'SHIFT|ALT|CTRL', action = act.AdjustPaneSize{ 'Right', 1 } },
  -- { key = 'UpArrow', mods = 'SHIFT|CTRL', action = act.ActivatePaneDirection 'Up' },
  -- { key = 'UpArrow', mods = 'SHIFT|ALT|CTRL', action = act.AdjustPaneSize{ 'Up', 1 } },
  -- { key = 'DownArrow', mods = 'SHIFT|CTRL', action = act.ActivatePaneDirection 'Down' },
  -- { key = 'DownArrow', mods = 'SHIFT|ALT|CTRL', action = act.AdjustPaneSize{ 'Down', 1 } },
  -- { key = 'Insert', mods = 'SHIFT', action = act.PasteFrom 'PrimarySelection' },
  -- { key = 'Insert', mods = 'CTRL', action = act.CopyTo 'PrimarySelection' },
}

-- Show which key table is active in the status area
wezterm.on(
  'update-status',
  function(window, pane)
    local name = window:active_key_table()
    if name then
      name = 'TABLE: ' .. name
    end
    window:set_right_status(name or '')
  end
)

-- key_index = #config.keys

-- wezterm.on(
--   'update-status',
--   function(window, pane)
--     local info = pane:get_foreground_process_info()

--     if info ~= nil and info.name ~= 'dte' then
--       key1 = { key = 'w', mods = 'ALT', action = act.CopyTo 'Clipboard' }
--       last_key = config.keys[key_index+1]

--       if last_key ~= nil and last_key.key == key1.key and last_key.mods == key1.mods then
--         return
--       end

--       table.insert(config.keys, key1)
--     end
--   end
-- )

wezterm.on(
  'CopyToHackForDte',
  function(window, pane)
    local info = pane:get_foreground_process_info()

    if info ~= nil and info.name ~= 'dte' then
      window:perform_action(act.CopyTo 'Clipboard', pane)
    else
      window:perform_action(act.SendKey { key = 'w', mods = 'ALT' }, pane)
    end
  end
)

wezterm.on(
  'SearchHackForDte',
  function(window, pane)
    local info = pane:get_foreground_process_info()

    if info ~= nil and info.name ~= 'dte' then
      window:perform_action(act.Search 'CurrentSelectionOrEmptyString', pane)
    else
      window:perform_action(act.SendKey { key = 's', mods = 'CTRL' }, pane)
    end
  end
)

wezterm.on(
  'ScrollToTopForDte',
  function(window, pane)
    local info = pane:get_foreground_process_info()

    if info ~= nil and info.name ~= 'dte' then
      window:perform_action(act.ScrollToTop, pane)
    else
      window:perform_action(act.SendKey { key = '<', mods = 'SHIFT|ALT' }, pane)
    end
  end
)

wezterm.on(
  'ScrollToBottomForDte',
  function(window, pane)
    local info = pane:get_foreground_process_info()

    if info ~= nil and info.name ~= 'dte' then
      window:perform_action(act.ScrollToBottom, pane)
    else
      window:perform_action(act.SendKey { key = '>', mods = 'SHIFT|ALT' }, pane)
    end
  end
)

function ScrollByPageForDte(window, pane, page_number, key)
  local info = pane:get_foreground_process_info()

  if info ~= nil and info.name ~= 'dte' then
    window:perform_action(act.ScrollByPage(page_number), pane)
  else
    window:perform_action(act.SendKey(key), pane)
  end
end

function ScrollByLineForDte(window, pane, line_number, key)
  local info = pane:get_foreground_process_info()

  if info ~= nil and info.name ~= 'dte' then
    window:perform_action(act.ScrollByLine(line_number), pane)
  else
    window:perform_action(act.SendKey(key), pane)
  end
end

function active_tab_idx(mux_win)
  for _, item in ipairs(mux_win:tabs_with_info()) do
    -- wezterm.log_info('idx: ', idx, 'tab:', item)
    if item.is_active then
      return item.index
    end
  end
end

function maximum_when_startup()
  -- start use maximum window mode. can be close use F10 (bind blow)
  wezterm.on(
    'gui-startup',
    function(window)
      local tab, pane, window = mux.spawn_window(cmd or {})
      local gui_window = window:gui_window();
      gui_window:perform_action(wezterm.action.ToggleFullScreen, pane)
    end
  )
end

-- maximum_when_startup()

config.key_tables = {
  resize_pane = {
    { key = 'LeftArrow', action = act.AdjustPaneSize { 'Left', 5 } },

    { key = 'RightArrow', action = act.AdjustPaneSize { 'Right', 5 } },

    { key = 'UpArrow', action = act.AdjustPaneSize { 'Up', 5 } },

    { key = 'DownArrow', action = act.AdjustPaneSize { 'Down', 5 } },

    -- Cancel the mode by pressing escape
    { key = 'Escape', action = 'PopKeyTable' },
  },
  search_mode = {
    { key = 'Enter', mods = 'NONE', action = act.CopyMode 'PriorMatch' },
    { key = 'Escape', mods = 'NONE', action = act.CopyMode 'Close' },
    { key = 'g', mods = 'CTRL', action = act.CopyMode 'Close' },
    { key = 'n', mods = 'CTRL', action = act.CopyMode 'NextMatch' },
    { key = 'p', mods = 'CTRL', action = act.CopyMode 'PriorMatch' },
    { key = 'r', mods = 'CTRL', action = act.CopyMode 'CycleMatchType' },
    { key = 'u', mods = 'CTRL', action = act.CopyMode 'ClearPattern' },
    { key = 'PageUp', mods = 'NONE', action = act.CopyMode 'PriorMatchPage' },
    { key = 'PageDown', mods = 'NONE', action = act.CopyMode 'NextMatchPage' },
    { key = 'UpArrow', mods = 'NONE', action = act.CopyMode 'PriorMatch' },
    { key = 'DownArrow', mods = 'NONE', action = act.CopyMode 'NextMatch' },
  },
}

config.mouse_bindings = {
  {
    event = { Up = { streak = 1, button = 'Left' } },
    mods = 'NONE',
    action = act.Nop,
  },
}


-- and finally, return the configuration to wezterm
return config