WezTerm config — CMD+Click remote files via sshfs, relative path resolution, smart image paste

.wezterm.lua

local wezterm = require 'wezterm'
local act = wezterm.action
local config = wezterm.config_builder()

-- Font: Nerd Font for starship icons
config.font_size = 13.0

-- Catppuccin Mocha (matches starship palette)
config.color_scheme = 'Catppuccin Mocha'
config.colors = {
  background = '#0a0e14',
}

config.hyperlink_rules = wezterm.default_hyperlink_rules()

-- Remote white.local paths → local sshfs mounts
table.insert(config.hyperlink_rules, {
  regex = [[/home/nat/([^ \t:),'"'`]+)]],
  format = 'file:///opt/white/$1',
})
table.insert(config.hyperlink_rules, {
  regex = [[/home/openclaw/([^ \t:),'"'`]+)]],
  format = 'file:///opt/openclaw/$1',
})

-- Local absolute paths
table.insert(config.hyperlink_rules, {
  regex = [[(/Users/[^ \t:),'"'`]+)]],
  format = 'file://$1',
})

-- ~/path style
table.insert(config.hyperlink_rules, {
  regex = [[~/([^ \t:),'"'`]+)]],
  format = 'file:///Users/nat/$1',
})

-- Relative paths — ./path and ψ/path (resolved via OSC 7 cwd on click)
table.insert(config.hyperlink_rules, {
  regex = [[(\./[^ \t:),'"'`]+)]],
  format = 'rel:$1',
})
table.insert(config.hyperlink_rules, {
  regex = [[(?<!/)(ψ/[^ \t:),'"'`]+)]],
  format = 'psi:$1',
})

-- Rewrite remote cwd to local sshfs path
local function resolve_cwd(pane)
  local cwd = pane:get_current_working_dir()
  if not cwd then return nil end
  local p = cwd.file_path or ''
  p = p:gsub('^/home/openclaw/', '/opt/openclaw/')
  p = p:gsub('^/home/nat/', '/opt/white/')
  return p
end

-- Intercept link clicks to resolve relative paths using OSC 7 cwd
wezterm.on('open-uri', function(window, pane, uri)
  -- psi: and rel: schemes — resolve relative to cwd
  local rel = uri:match('^psi:(.+)$') or uri:match('^rel:(.+)$')
  if rel then
    rel = rel:gsub('^%./', '')  -- strip leading ./
    local cwd_path = resolve_cwd(pane)
    if cwd_path then
      wezterm.open_with(cwd_path .. '/' .. rel)
    end
    return false
  end
  -- file:// URIs — force open with TextEdit if macOS doesn't know the type
  local path = uri:match('^file://(.+)$')
  if path then
    local success = wezterm.run_child_process({ '/usr/bin/open', path })
    if not success then
      wezterm.run_child_process({ '/usr/bin/open', '-a', 'TextEdit', path })
    end
    return false
  end
end)

-- Smart CMD+V: image in clipboard → save to sshfs + paste path, else normal paste
config.keys = {
  {
    key = 'v',
    mods = 'CMD',
    action = wezterm.action_callback(function(window, pane)
      local success, stdout = wezterm.run_child_process({
        '/bin/bash', '-c',
        'f="/opt/white/Code/tmp/clipboard/$(date +%Y%m%d-%H%M%S).png"; '
        .. 'mkdir -p /opt/white/Code/tmp/clipboard 2>/dev/null; '
        .. '/opt/homebrew/bin/pngpaste "$f" 2>/dev/null && '
        .. 'echo "/home/nat/Code/tmp/clipboard/$(basename $f)"'
      })
      if success and stdout and stdout:match('%.png') then
        pane:send_text(stdout:gsub('%s+$', ''))
      else
        window:perform_action(act.PasteFrom 'Clipboard', pane)
      end
    end),
  },
}

-- iTerm2 style: CMD+Click opens links, plain click selects text
config.mouse_bindings = {
  {
    event = { Up = { streak = 1, button = 'Left' } },
    mods = 'NONE',
    action = act.CompleteSelection 'ClipboardAndPrimarySelection',
  },
  {
    event = { Up = { streak = 1, button = 'Left' } },
    mods = 'CMD',
    action = act.OpenLinkAtMouseCursor,
  },
  {
    event = { Down = { streak = 1, button = 'Left' } },
    mods = 'CMD',
    action = act.Nop,
  },
}

return config