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01949f462a
(cherry picked from commit 25a04de1e51358fc8b119c047343a060ee34ced6) (cherry picked from commit 3f47be12e38c82d09ddaa4ba59269fa642d18840)
49 lines
1.5 KiB
Bash
49 lines
1.5 KiB
Bash
#!/usr/env/bin zsh
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# Make your Terminal Prompt responsive :)
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#
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# Author: Nikhil Gupta <me@nikhgupta.com>
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# Version: 0.0.1
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#
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# Please, read the README.md
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#
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[[ -n "${PROMPT_FILE}" ]] || PROMPT_FILE="${HOME}/.zshrc"
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[[ -n "${PROMPT_BREAKPOINTS}" ]] || PROMPT_BREAKPOINTS=(120 90 60 0)
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[[ -n "${PROMPT_NEWLINE_AFTER}" ]] || PROMPT_NEWLINE_AFTER=40
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# Calculate length of the prompt being rendered. Additionally, set
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# a variable that adds a newline character when prompt length exceeds
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# $PROMPT_NEWLINE_AFTER
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_calculate_prompt_length() {
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local prompt_exp="${(%%)PROMPT}"
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local prompt_stripped="$(echo $prompt_exp | sed -r 's/\x1B\[([0-9]{1,2}(;[0-9]{1,2})?)?[m|K]//g')"
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local prompt_length="${#prompt_stripped}"
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unset prompt_newline
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if [[ $prompt_length -gt $PROMPT_NEWLINE_AFTER ]]; then
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prompt_newline=$'\n'
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else
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prompt_newline=$''
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fi
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}
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# Look for change in $COLUMNS, and loop through all breakpoints to setup
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# the appropriate prompt for the new column size.
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_responsive_prompt(){
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_calculate_prompt_length
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[[ $COLUMNS -eq $last_columns ]] && return
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for breakpoint in $PROMPT_BREAKPOINTS; do
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[[ $COLUMNS -lt $breakpoint ]] && continue
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if which "_prompt_$breakpoint" &>/dev/null; then
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eval "_prompt_$breakpoint"
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break
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else
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source $PROMPT_FILE
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fi
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done
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_calculate_prompt_length
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last_columns=$COLUMNS
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}
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# this function should run when prompt is about to be rendered.
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precmd_functions+=( _responsive_prompt )
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