starship/docs/zh-CN/advanced-config/README.md
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Advanced Configuration

Starship 功能繁多,有时您必须在编辑 <code>starship.toml 之外做更多工作才能实现某些效果。 此页面详细介绍了一些在 starship 中使用的高级配置技巧。

::: warning

本节所述的配置内容可能随 Starship 未来版本的更新而改变。

:::

在 Bash 中自定义预提示和预执行命令

Bash 没有像大多数其它 shell 一样的正式预执行/预命令框架。 因此,很难在 bash 中提供完全可自定义的 hook 机制。 然而Starship 确实能使您有限地在提示符渲染过程中插入自己的函数执行:

  • 若要在提示符显示之前运行自定义函数,需要定义此函数,然后将函数名赋值给 starship_reserved_user_func。 例如,要在提示符之前绘制一枚火箭,您应该写
function blastoff(){
    echo "🚀"
}
starship_precmd_user_func="blastoff"
  • 要在一个命令运行前运行自定义函数,您可以使用 DEBUG trap 机制。 然而,您必须在捕捉 DEBUG 信号之前启动 Starship Starship 可以保留 DEBUG trap 的值,但如果该 trap 在 starship 启动后被覆盖,一些功能将会被破坏。
function blastoff(){
    echo "🚀"
}
trap blastoff DEBUG     # 启动 starship *之前* 设置 DEBUG trap
eval $(starship init bash)

更改窗口标题

一些 shell 提示符会自动更改您的窗口标题(比如改成您的工作目录)。 Fish 甚至默认会执行此功能。 Starship 没有实现此功能,但将这个功能添加到 bashzsh 是相当简单的。

首先,定义窗口标题更改函数(在 bash 和 zsh 中相同):

function set_win_title(){
    echo -ne "\033]0; YOUR_WINDOW_TITLE_HERE \007"
}

您可以使用变量来定制标题(常用的有 $USER$HOSTNAME$PWD)。

bash 中,设置此函数为 starship 预执行函数:

starship_precmd_user_func="set_win_title"

zsh中,将此函数添加到 reservmd_functions 列表:

precmd_functions+=(set_win_title)

If you like the result, add these lines to your shell configuration file (~/.bashrc or ~/.zshrc) to make it permanent.

For example, if you want to display your current directory in your terminal tab title, add the following snippet to your ~/.bashrc or ~/.zshrc:

function set_win_title(){
    echo -ne "\033]0; $(basename $PWD) \007"
}
starship_precmd_user_func="set_win_title"

样式设定

样式字符串是用空格分隔的单词列表。 其中单词不是大小写敏感的(例如 boldBoLd 被视为同一字符串)。 每个单词可以是以下之一:

  • bold
  • underline
  • dimmed
  • bg:<color>
  • fg:<color>
  • <color>
  • none

<color> 是颜色说明符(下面解释)。 fg:<color><color> 当前产生一样的效果,尽管未来可能会改变。 字符串中的单词顺序不影响显示结果。

The none token overrides all other tokens in a string if it is not part of a bg: specifier, so that e.g. fg:red none fg:blue will still create a string with no styling. bg:none sets the background to the default color so fg:red bg:none is equivalent to red or fg:red and bg:green fg:red bg:none is also equivalent to fg:red or red. It may become an error to use none in conjunction with other tokens in the future.

颜色说明符可以是以下内容之一:

  • 标准终端颜色之一:blackredgreenblueyellowpurplecyanwhite。 您可以使用可选前缀 bright- 来获取明亮版本的颜色(例如,bright-white)。
  • 一个 # 后跟一个六位十六进制数。 这将指定一个 十六进制 RGB 颜色代码
  • 0-255 之间的数字。 这将指定一个 8 位 ANSI 颜色码

如果为文本/背景指定了多个颜色,字符串中最后指定的颜色将具有最高优先级。