update wezterm config

dot_config/wezterm/wezterm.lua

@@ -1,32 +1,213 @@
 local wezterm = require 'wezterm'
-local default_box = 'madbox'
-return {
-  ssh_domains = {
-    {
-      name = 'box',
-      remote_address = default_box,
-      local_echo_threshold_ms = 10
-    }
-  },
-  launch_menu = {
-    {
-      -- Optional label to show in the launcher. If omitted, a label
-      -- is derived from the `args`
-      label = 'wezterm connect ' .. default_box,
-      -- The argument array to spawn.  If omitted the default program
-      -- will be used as described in the documentation above
-      args = { 'wezterm', 'connect', default_box }
-
-      -- You can specify an alternative current working directory;
-      -- if you don't specify one then a default based on the OSC 7
-      -- escape sequence will be used (see the Shell Integration
-      -- docs), falling back to the home directory.
-      -- cwd = "/some/path"
-
-      -- You can override environment variables just for this command
-      -- by setting this here.  It has the same semantics as the main
-      -- set_environment_variables configuration option described above
-      -- set_environment_variables = { FOO = "bar" },
-    }
+
+-- wezterm.gui is not available to the mux server, so take care to
+-- do something reasonable when this config is evaluated by the mux
+function get_appearance()
+  if wezterm.gui then return wezterm.gui.get_appearance() end
+  return 'Light'
+end
+
+function scheme_for_appearance(appearance)
+  if appearance:find 'Dark' then
+    return 'Builtin Solarized Dark'
+  else
+    return 'Builtin Solarized Light'
+  end
+end
+
+wezterm.on('update-status', function(window)
+  -- Grab the utf8 character for the "powerline" left facing
+  -- solid arrow.
+  local SOLID_LEFT_ARROW = utf8.char(0xe0b2)
+
+  -- Grab the current window's configuration, and from it the
+  -- palette (this is the combination of your chosen colour scheme
+  -- including any overrides).
+  local color_scheme = window:effective_config().resolved_palette
+  local bg = color_scheme.background
+  local fg = color_scheme.foreground
+
+  window:set_right_status(wezterm.format({
+    -- First, we draw the arrow...
+    { Background = { Color = 'none' } }, { Foreground = { Color = bg } },
+    { Text = SOLID_LEFT_ARROW }, -- Then we draw our text
+    { Background = { Color = bg } }, { Foreground = { Color = fg } },
+    { Text = ' ' .. wezterm.hostname() .. ' ' }
+  }))
+end)
+
+-- Show which key table is active in the status area
+wezterm.on('update-right-status', function(window, pane)
+  local name = window:active_key_table()
+  if name then
+    name = 'TABLE: ' .. name
+  end
+  window:set_right_status(name or '')
+end)
+
+local default_domain = 'SSHMUX:dev'
+
+local config = {}
+
+config.ssh_domains = wezterm.default_ssh_domains()
+for _, dom in ipairs(config.ssh_domains) do
+  wezterm.log_info('setting multiplexing to WezTerm for ' .. dom.name)
+  dom.assume_shell = 'Posix'
+  dom.local_echo_threshold_ms = 10
+end
+
+config.color_scheme = scheme_for_appearance(get_appearance())
+
+config.launch_menu = {
+  {
+    -- Optional label to show in the launcher. If omitted, a label
+    -- is derived from the `args`
+    label = 'wezterm connect ' .. default_domain,
+    -- The argument array to spawn.  If omitted the default program
+    -- will be used as described in the documentation above
+    args = { 'wezterm', 'connect', default_domain }
+
+    -- You can specify an alternative current working directory;
+    -- if you don't specify one then a default based on the OSC 7
+    -- escape sequence will be used (see the Shell Integration
+    -- docs), falling back to the home directory.
+    -- cwd = "/some/path"
+
+    -- You can override environment variables just for this command
+    -- by setting this here.  It has the same semantics as the main
+    -- set_environment_variables configuration option described above
+    -- set_environment_variables = { FOO = "bar" },
   }
 }
+
+-- timeout_milliseconds defaults to 1000 and can be omitted
+config.leader = { key = 'Space', mods = 'CTRL|SHIFT', timeout_milliseconds = 1000 }
+config.keys = {
+  {
+    key = 'Space',
+    mods = 'CTRL|SHIFT',
+    action = wezterm.action.DisableDefaultAssignment,
+  },
+  {
+    key = 'Space',
+    mods = 'LEADER|CTRL|SHIFT',
+    action = wezterm.action.SendKey { key = 'Space', mods = 'CTRL|SHIFT' },
+  },
+  {
+    key = '"',
+    mods = 'LEADER|SHIFT',
+    action = wezterm.action.SplitHorizontal { domain = 'CurrentPaneDomain' },
+  },
+  {
+    key = '%',
+    mods = 'LEADER|SHIFT',
+    action = wezterm.action.SplitVertical { domain = 'CurrentPaneDomain' },
+  },
+  {
+    key = 'l',
+    mods = 'CTRL|SHIFT',
+    action = wezterm.action.DisableDefaultAssignment,
+  },
+  {
+    key = 'd',
+    mods = 'LEADER|CTRL|SHIFT',
+    action = wezterm.action.ShowDebugOverlay,
+  },
+  {
+    key = 'l',
+    mods = 'CTRL|SHIFT',
+    action = wezterm.action.ShowLauncher,
+  },
+  {
+    key = 's',
+    mods = 'CTRL|SHIFT',
+    action = wezterm.action.QuickSelect,
+  },
+  {
+    key = 'c',
+    mods = 'CTRL|SHIFT',
+    action = wezterm.action.QuickSelect,
+  },
+  {
+    key = 'o',
+    mods = 'CTRL|SHIFT',
+    action = wezterm.action.QuickSelectArgs {
+      label = 'open url',
+      patterns = {
+        'https?://\\S+',
+      },
+      action = wezterm.action_callback(function(window, pane)
+        local url = window:get_selection_text_for_pane(pane)
+        wezterm.log_info('opening: ' .. url)
+        wezterm.open_with(url)
+      end),
+    },
+  },
+
+  -- CTRL+SHIFT+Space, followed by 'r' will put us in resize-pane
+  -- mode until we cancel that mode.
+  {
+    key = 'r',
+    mods = 'LEADER',
+    action = wezterm.action.ActivateKeyTable {
+      name = 'resize_pane',
+      one_shot = false,
+    },
+  },
+
+  -- CTRL+SHIFT+Space, followed by 'a' will put us in activate-pane
+  -- mode until we press some other key or until 1 second (1000ms)
+  -- of time elapses
+  {
+    key = 'a',
+    mods = 'LEADER',
+    action = wezterm.action.ActivateKeyTable {
+      name = 'activate_pane',
+      timeout_milliseconds = 1000,
+    },
+  },
+}
+
+config.key_tables = {
+  -- Defines the keys that are active in our resize-pane mode.
+  -- Since we're likely to want to make multiple adjustments,
+  -- we made the activation one_shot=false. We therefore need
+  -- to define a key assignment for getting out of this mode.
+  -- 'resize_pane' here corresponds to the name="resize_pane" in
+  -- the key assignments above.
+  resize_pane = {
+    { key = 'LeftArrow',  action = wezterm.action.AdjustPaneSize { 'Left', 1 } },
+    { key = 'h',          action = wezterm.action.AdjustPaneSize { 'Left', 1 } },
+
+    { key = 'RightArrow', action = wezterm.action.AdjustPaneSize { 'Right', 1 } },
+    { key = 'l',          action = wezterm.action.AdjustPaneSize { 'Right', 1 } },
+
+    { key = 'UpArrow',    action = wezterm.action.AdjustPaneSize { 'Up', 1 } },
+    { key = 'k',          action = wezterm.action.AdjustPaneSize { 'Up', 1 } },
+
+    { key = 'DownArrow',  action = wezterm.action.AdjustPaneSize { 'Down', 1 } },
+    { key = 'j',          action = wezterm.action.AdjustPaneSize { 'Down', 1 } },
+
+    -- Cancel the mode by pressing escape
+    { key = 'Escape',     action = 'PopKeyTable' },
+  },
+
+  -- Defines the keys that are active in our activate-pane mode.
+  -- 'activate_pane' here corresponds to the name="activate_pane" in
+  -- the key assignments above.
+  activate_pane = {
+    { key = 'LeftArrow',  action = wezterm.action.ActivatePaneDirection 'Left' },
+    { key = 'h',          action = wezterm.action.ActivatePaneDirection 'Left' },
+
+    { key = 'RightArrow', action = wezterm.action.ActivatePaneDirection 'Right' },
+    { key = 'l',          action = wezterm.action.ActivatePaneDirection 'Right' },
+
+    { key = 'UpArrow',    action = wezterm.action.ActivatePaneDirection 'Up' },
+    { key = 'k',          action = wezterm.action.ActivatePaneDirection 'Up' },
+
+    { key = 'DownArrow',  action = wezterm.action.ActivatePaneDirection 'Down' },
+    { key = 'j',          action = wezterm.action.ActivatePaneDirection 'Down' },
+  },
+}
+
+return config