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Open file without losing sidebar focus

Discussion #249 answered by @cseickel

["<tab>"] = function(state)
  state.commands["open"](state)
  vim.cmd("Neotree reveal")
end,

Alternative version by @nyngwang:

['<tab>'] = function (state)
  local node = state.tree:get_node()
  if require("neo-tree.utils").is_expandable(node) then
    state.commands["toggle_node"](state)
  else
    state.commands['open'](state)
    vim.cmd('Neotree reveal')                  
  end
end,

Read comment here: https://github.com/nvim-neo-tree/neo-tree.nvim/discussions/249#discussioncomment-2585963

Navigation with HJKL

Discussion #163 answered by @bennypowers

["h"] = function(state)
  local node = state.tree:get_node()
    if node.type == 'directory' and node:is_expanded() then
      require'neo-tree.sources.filesystem'.toggle_directory(state, node)
    else
      require'neo-tree.ui.renderer'.focus_node(state, node:get_parent_id())
    end
  end,
["l"] = function(state)
  local node = state.tree:get_node()
    if node.type == 'directory' then
      if not node:is_expanded() then
        require'neo-tree.sources.filesystem'.toggle_directory(state, node)
      elseif node:has_children() then
        require'neo-tree.ui.renderer'.focus_node(state, node:get_child_ids()[1])
      end
    end
  end,

Hijacking netrw when loading neo-tree lazily

#1247 (feature request)

Add the following to any init function (preferably neo-tree's or netman's):

If using netrw

vim.api.nvim_create_autocmd('BufNewFile', {
  group    = vim.api.nvim_create_augroup('RemoteFile', {clear = true}),
  callback = function()
    local f = vim.fn.expand('%:p')
    for _, v in ipairs{'sftp', 'scp', 'ssh', 'dav', 'fetch', 'ftp', 'http', 'rcp', 'rsync'} do
      local p = v .. '://'
      if string.sub(f, 1, #p) == p then
        vim.cmd[[
          unlet g:loaded_netrw
          unlet g:loaded_netrwPlugin
          runtime! plugin/netrwPlugin.vim
          silent Explore %
        ]]
        vim.api.nvim_clear_autocmds{group = 'RemoteFile'}
        break
      end
    end
  end
})

If using netman.nvim

vim.api.nvim_create_autocmd('BufNewFile', {
  group    = vim.api.nvim_create_augroup('NetmanInit', {clear = true}),
  callback = function()
    local f = vim.fn.expand('%:p')
    for _, v in ipairs{'sftp', 'scp', 'ssh', 'docker'} do
      local p = v .. '://'
      if string.sub(f, 1, #p) == p then
        vim.defer_fn(function()
          require'netman'.read(f)
        end, 0)
        vim.api.nvim_clear_autocmds{group = 'NetmanInit'}
        break
      end
    end
  end
})
--- optional part if you still want to use netrw for files unsupported by netman.nvim
--- these need to be two separate AUgroups, don't combine them
vim.api.nvim_create_autocmd('BufNewFile', {
  group    = vim.api.nvim_create_augroup('UnsupportedRemoteFile', {clear = true}),
  callback = function()
    local f = vim.fn.expand('%:p')
    for _, v in ipairs{'dav', 'fetch', 'ftp', 'http', 'rcp', 'rsync'} do
      local p = v .. '://'
      if string.sub(f, 1, #p) == p then
        vim.cmd[[
          unlet g:loaded_netrw
          unlet g:loaded_netrwPlugin
          runtime! plugin/netrwPlugin.vim
          silent Explore %
        ]]
        vim.api.nvim_clear_autocmds{group = 'UnsupportedRemoteFile'}
        break
      end
    end
  end
})