大型/.ssh/config文件使用zsh的自动完成速度较慢 [英] Autocomplete slow using zsh for large /.ssh/config file

问题描述

我目前有一个/.ssh/config文件，其中包含大约7000行.

I currently have a /.ssh/config file the has about 7000 lines in it.

我正在尝试查看是否有一种方法可以为此加快zsh中的自动完成功能.

I am trying to see if there is a way to speed up the autocomplete feature in zsh for this.

当我开始键入要ssh进入的服务器，然后按TAB时，它大约需要10秒钟，才能向我显示我可以选择的主机.

When I start typing which server I want to ssh into and then press TAB it takes about 10 seconds for it to show me the possible Hosts I can choose from.

推荐答案

问题是_ssh的完成每次尝试尝试完成Host指令时都会逐行读取整个配置文件，以查找Host指令.主机.

The problem is that the completion for _ssh reads your entire config file line-by-line looking for Host directives each time you try to complete a host.

一种解决方案是重写相关功能(_ssh_hosts)，以更快地执行某些操作(例如在内存中缓存主机名以用于后续完成).

One solution would be to override the relevant function (_ssh_hosts) to do something faster (like cache host names in memory for subsequent completions).

另一种方法是通过将实际配置移动到单独的文件中来使配置文件更小，而将配置文件保留为Host/Include对的列表.例如，打开

Another would be to make your config file smaller by moving the actual configuration into separate files, leaving your config file as nothing but a list of Host/Include pairs. For example, turn

Host foo
    User bob
    IdentityFile ~/.ssh/bob_ident

Host bar
    User alice
    IdentityFile ~/.ssh/alice_ident

进入

Host foo
    Include foo_config

Host bar
    Include bar_config

其中~/.ssh/foo_config和~/.ssh/bar_config将包含每个主机的相关详细信息.

where ~/.ssh/foo_config and ~/.ssh/bar_config would contain the relevant details for each host.

大概，Host指令仅占7000 + l行的一小部分，因此这应该大大提高_ssh_host的速度.

Presumably, Host directives only make up a small fraction of your 7000+l lines, so this should speed up _ssh_host considerably.

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