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#!/usr/bin/env bash
readonly BASH_LIB_NAME=DEMO
source ./bash-lib.sh
# Set `DEMO_DEBUG=1` to enable debug messages
trace "this is a trace message" "with additional data"
debug "this is a debugging message" "with additional data"
info "this is an informational message" "with additional data"
warn "this is a warning message" "with additional data"
error "this is an error message" "with additional data"
# Like echo, but to stderr
echoe '------------------------------'
if is_debug; then
info "Debugging messages:" on
else
info "Debugging messages:" off
fi
if is_trace; then
info "Trace messages:" on
else
info "Trace messages:" off
fi
echoe '------------------------------'
# Use critical with `set +e` if you want to trap errors
(
function handle_error() {
info "handling error..."
}
set +e
trap "handle_error" ERR
critical "this is a critical error:" "this will allow some error recovery"
info "but with 'set +e', the program continues its course"
)
echoe '------------------------------'
info "use 'fatal()' in either case if you want to quit with an error message"
fatal "some unrecoverable error occurred, exiting"
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