mirror of
https://github.com/Llewellynvdm/starship.git
synced 2024-11-16 01:57:07 +00:00
59 lines
2.5 KiB
Bash
59 lines
2.5 KiB
Bash
# ZSH has a quirk where `preexec` is only run if a command is actually run (i.e
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# pressing ENTER at an empty command line will not cause preexec to fire). This
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# can cause timing issues, as a user who presses "ENTER" without running a command
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# will see the time to the start of the last command, which may be very large.
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# To fix this, we create STARSHIP_START_TIME upon preexec() firing, and destroy it
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# after drawing the prompt. This ensures that the timing for one command is only
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# ever drawn once (for the prompt immediately after it is run).
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zmodload zsh/parameter # Needed to access jobstates variable for NUM_JOBS
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# Will be run before every prompt draw
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starship_precmd() {
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# Save the status, because commands in this pipeline will change $?
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STATUS=$?
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# Use length of jobstates array as number of jobs. Expansion fails inside
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# quotes so we set it here and then use the value later on.
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NUM_JOBS=$#jobstates
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# Compute cmd_duration, if we have a time to consume
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if [[ ! -z "${STARSHIP_START_TIME+1}" ]]; then
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STARSHIP_END_TIME=$(::STARSHIP:: time)
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STARSHIP_DURATION=$((STARSHIP_END_TIME - STARSHIP_START_TIME))
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PROMPT="$(::STARSHIP:: prompt --status=$STATUS --cmd-duration=$STARSHIP_DURATION --jobs="$NUM_JOBS")"
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unset STARSHIP_START_TIME
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else
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PROMPT="$(::STARSHIP:: prompt --status=$STATUS --jobs="$NUM_JOBS")"
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fi
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}
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starship_preexec(){
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STARSHIP_START_TIME=$(::STARSHIP:: time)
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}
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# If precmd/preexec arrays are not already set, set them. If we don't do this,
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# the code to detect whether starship_precmd is already in precmd_functions will
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# fail because the array doesn't exist (and same for starship_preexec)
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[[ -z "${precmd_functions+1}" ]] && precmd_functions=()
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[[ -z "${preexec_functions+1}" ]] && preexec_functions=()
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# If starship precmd/preexec functions are already hooked, don't double-hook them
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# to avoid unnecessary performance degradation in nested shells
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if [[ ${precmd_functions[(ie)starship_precmd]} -gt ${#precmd_functions} ]]; then
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precmd_functions+=(starship_precmd)
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fi
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if [[ ${preexec_functions[(ie)starship_preexec]} -gt ${#preexec_functions} ]]; then
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preexec_functions+=(starship_preexec)
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fi
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# Set up a function to redraw the prompt if the user switches vi modes
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function zle-keymap-select
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{
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PROMPT=$(::STARSHIP:: prompt --keymap=$KEYMAP --jobs="$(jobs | wc -l)")
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zle reset-prompt
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}
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STARSHIP_START_TIME=$(::STARSHIP:: time)
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zle -N zle-keymap-select
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export STARSHIP_SHELL="zsh"
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