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83 lines
2.5 KiB
Bash
83 lines
2.5 KiB
Bash
#!/usr/bin/env zsh
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# This script prints a bell character when a command finishes
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# if it has been running for longer than $zbell_duration seconds.
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# If there are programs that you know run long that you don't
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# want to bell after, then add them to $zbell_ignore.
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#
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# This script uses only zsh builtins so its fast, there's no needless
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# forking, and its only dependency is zsh and its standard modules
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#
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# Written by Jean-Philippe Ouellet <jpo@vt.edu>
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# Made available under the ISC license.
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# only do this if we're in an interactive shell
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[[ -o interactive ]] || return
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# get $EPOCHSECONDS. builtins are faster than date(1)
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zmodload zsh/datetime || return
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# make sure we can register hooks
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autoload -Uz add-zsh-hook || return
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# make sure we can do regexp replace
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autoload -Uz regexp-replace || return
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# initialize zbell_duration if not set
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(( ${+zbell_duration} )) || zbell_duration=15
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# initialize zbell_ignore if not set
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(( ${+zbell_ignore} )) || zbell_ignore=($EDITOR $PAGER)
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# initialize it because otherwise we compare a date and an empty string
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# the first time we see the prompt. it's fine to have lastcmd empty on the
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# initial run because it evaluates to an empty string, and splitting an
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# empty string just results in an empty array.
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zbell_timestamp=$EPOCHSECONDS
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# default notification function
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# $1: command
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# $2: duration in seconds
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zbell_notify() {
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type notify-send > /dev/null && \
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notify-send -i terminal "Command completed in ${2}s:" $1
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print -n "\a"
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}
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# right before we begin to execute something, store the time it started at
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zbell_begin() {
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zbell_timestamp=$EPOCHSECONDS
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zbell_lastcmd=$1
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}
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# when it finishes, if it's been running longer than $zbell_duration,
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# and we dont have an ignored command in the line, then print a bell.
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zbell_end() {
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local cmd_duration=$(( $EPOCHSECONDS - $zbell_timestamp ))
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local ran_long=$(( $cmd_duration >= $zbell_duration ))
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local zbell_lastcmd_tmp="$zbell_lastcmd"
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regexp-replace zbell_lastcmd_tmp '^sudo ' ''
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[[ $zbell_last_timestamp == $zbell_timestamp ]] && return
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[[ $zbell_lastcmd_tmp == "" ]] && return
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zbell_last_timestamp=$zbell_timestamp
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local has_ignored_cmd=0
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for cmd in ${(s:;:)zbell_lastcmd_tmp//|/;}; do
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words=(${(z)cmd})
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util=${words[1]}
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if (( ${zbell_ignore[(i)$util]} <= ${#zbell_ignore} )); then
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has_ignored_cmd=1
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break
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fi
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done
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(( ! $has_ignored_cmd && ran_long )) && zbell_notify $zbell_lastcmd $cmd_duration
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}
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# register the functions as hooks
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add-zsh-hook preexec zbell_begin
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add-zsh-hook precmd zbell_end
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