38 lines
1.6 KiB
Bash
38 lines
1.6 KiB
Bash
# -*- mode: sh; sh-indentation: 4; indent-tabs-mode: nil; sh-basic-offset: 4; -*-
|
|
# Copyright (c) 2018 Sebastian Gniazdowski
|
|
#
|
|
# FAST_HIGHLIGHT hash serves as container for variables that
|
|
# prevents creating them in global scope. (P) flag is not used,
|
|
# output array is fixed (__lines_list).
|
|
#
|
|
# $1 - the command, e.g. "git remote"; 2>/dev/null redirection is
|
|
# added automatically
|
|
# $2 - FAST_HIGHLIGHT field name, e.g. "chroma-git-branches"; two
|
|
# additional fields will be used, $2-cache, $2-cache-born-at
|
|
# $3 - what to remove from beginning of the lines returned by the
|
|
# command
|
|
# $4 - cache validity time, default 5 (seconds)
|
|
#
|
|
# Output: array __lines_list, with output of the command ran
|
|
|
|
# User should not forget to define this array, the below code
|
|
# will only ensure that it's array (can also define a global)
|
|
typeset -ga __lines_list
|
|
local -a __response
|
|
|
|
if [[ -z "${FAST_HIGHLIGHT[$2-cache]}" || $(( EPOCHSECONDS - FAST_HIGHLIGHT[$2-cache-born-at] )) -gt ${4:-5} ]]; then
|
|
FAST_HIGHLIGHT[$2-cache-born-at]="$EPOCHSECONDS"
|
|
__response=( ${${(f)"$(command ${(Qz)1#+} 2>/dev/null)"}#${~3}} )
|
|
[[ "$1" = "+"* ]] && __lines_list+=( "${__response[@]}" ) || __lines_list=( "${__response[@]}" )
|
|
FAST_HIGHLIGHT[$2-cache]="${(j:;:)__response}"
|
|
else
|
|
# Quoted (s:;:) flag without @ will skip empty elements. It
|
|
# still produces array output, interesingly. All this is for
|
|
# the trailing ";" above, to skip last, empty element.
|
|
[[ "$1" = "+"* ]] && \
|
|
__lines_list+=( "${(@s:;:)FAST_HIGHLIGHT[$2-cache]}" ) || \
|
|
__lines_list=( "${(@s:;:)FAST_HIGHLIGHT[$2-cache]}" )
|
|
fi
|
|
|
|
# vim:ft=zsh:et:sw=4
|