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#!/usr/bin/env bash
set -euo pipefail
IFS=$'\n\t'
shopt -s nullglob
tput() {
# If tput fails, it just means less colors
command tput "$@" 2> /dev/null || true
}
NORMAL="$(tput sgr0)"
# shellcheck disable=SC2034
readonly NORMAL
BOLD="$(tput bold)"
# shellcheck disable=SC2034
readonly BOLD
RED="$(tput setaf 1)"
# shellcheck disable=SC2034
readonly RED
GREEN="$(tput setaf 2)"
# shellcheck disable=SC2034
readonly GREEN
YELLOW="$(tput setaf 3)"
# shellcheck disable=SC2034
readonly YELLOW
BLUE="$(tput setaf 4)"
# shellcheck disable=SC2034
readonly BLUE
PURPLE="$(tput setaf 5)"
# shellcheck disable=SC2034
readonly PURPLE
CYAN="$(tput setaf 6)"
# shellcheck disable=SC2034
readonly CYAN
WHITE="$(tput setaf 7)"
# shellcheck disable=SC2034
readonly WHITE
readonly BASH_LIB_LOG_VAR="${BASH_LIB_NAME:-BASH}_LOG"
is_debug() {
[ "${!BASH_LIB_LOG_VAR:-0}" -ge 1 ]
}
is_trace() {
[ "${!BASH_LIB_LOG_VAR:-0}" -ge 2 ]
}
declare -a VERBOSE_ARG
if is_debug; then
VERBOSE_ARG=("--verbose")
else
VERBOSE_ARG=()
fi
# shellcheck disable=SC2034
readonly VERBOSE_ARG
echoe() {
IFS=" " echo "$@" >&2
}
log() {
local level="$1"
local color="$2"
local message="$3"
shift 3
local -a rest=("$@")
echoe "${BOLD}${color}${level} ${WHITE}${message}${NORMAL}" "${rest[@]}"
}
trace() {
if is_trace; then
log "Trace: " "${PURPLE}" "$@"
fi
}
debug() {
if is_debug; then
log "Debug: " "${GREEN}" "$@"
fi
}
info() {
log "Info: " "${CYAN}" "$@"
}
warn() {
log "Warning:" "${YELLOW}" "$@"
}
error() {
log "Error: " "${RED}" "$@"
}
critical() {
error "$@"
# Useful for triggering the error trap system
return 1
}
fatal() {
error "$@"
exit 1
}
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