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4.3 KiB
進階設定
正因為 Starship 是一個多才多藝的 shell,有時候你必須要做比修改 starship.toml
更多事情來讓它完成特定工作。 這個頁面說明了一些用於 Starship 的進階設定技巧。
::: warning
這個章節內的設定可能會隨著未來 Starship 的版本發行而變動。
:::
Bash 中的自定義預提示 (pre-prompt) 與預執行 (pre-execution) 指令
Bash 不像其他大多的 shell 具有正式的預執行/預指令框架。 因為這個原因,很難在 bash
中提供能完全自定義的 hook。 然而,Starship 有提供給你有限的能力來插入你自己的函式到渲染提示字元的程序中:
- 為了在畫出提示字元之前執行一個自定義的函式,請定義一個函式,並將它的名稱放入
starship_precmd_user_func
之中。 例如,為了要在提示字元前畫出一個火箭,你就要
function blastoff(){
echo "🚀"
}
starship_precmd_user_func="blastoff"
- 為了要在一個指令前執行一個自定義的函式,你可以使用
DEBUG
trap 機制。 然而,你必須在初始化 Starship 之前 對 DEBUG 訊號設下trap! Starship 可以保留 DEBUG trap 的數值,但是如果該 trap 在 starship 啟動後被被覆寫,某些功能會損壞。
function blastoff(){
echo "🚀"
}
trap blastoff DEBUG # 在 Starship 啟用*前*對 DEBUG 訊號設下 trap
eval $(starship init bash)
改變視窗標題
有些 shell 的提示字元會幫你自動變更視窗標題(例如:為了反映出你目前的工作資料夾)。 Fish 甚至預設就會這樣做。 Starship 沒有幫你這樣做,但是可以用直覺的方式加入這個功能到 bash
或 zsh
之中。
首先,定義一個改變視窗標題的函式(在 bash 與 zsh 之中都一樣):
function set_win_title(){
echo -ne "\033]0; 你的標題在此 \007"
}
你可以利用變數來自定義這個標題($USER
、$HOSTNAME
與 $PWD
是很受歡迎的選項)。
在 bash
中,將這個函式設定為 Starship 的預執行函式:
starship_precmd_user_func="set_win_title"
在 zsh
中,將這個函式加入 precmd_functions
陣列:
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"
風格字串
風格字串是一個以空白分開的單詞清單。 單字並不會區分大小寫(換句話說,bold
與 BoLd
是被當作兩個相同的字串)。 每個單詞可以是下列其中之一:
bold
underline
dimmed
bg:<color>
fg:<color>
<color>
none
其中 <color>
是指定顏色用的(下面解釋)。 fg:<color>
與 <color>
目前做一樣的事情,不過未來可能會改變。 單詞在字串中的順序不重要。
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
. 未來可能會將 none
與其他符號一起使用的情形視為是一種錯誤。
一個顏色指定符號可以是下列其中之一:
- 任一個標準終端機顏色:
black
、red
、green
、blue
、yellow
、purple
、cyan
、white
。 你可以選擇性地加上前綴bright-
來取得明亮版本的顏色(例如:bright-white
)。 - 一個
#
後面跟隨著六位數的十六進位數字。 這個指定了 RGB 十六進制色碼。 - 一個介於 0~255 之間的數字。 這個指定了 8-bit ANSI 色碼。
如果前景/後景被指定了多種顏色,最後一個顏色具有最高優先性。